kevmap

TechniquesT1204.001 › AN0179

AN0179 Analytic 0179

Linux · attack.mitre.org · ATT&CK Enterprise v19.2

<p>Behavioral chain: (1) browser/office/GUI mail client opens a URL, (2) outbound connection to untrusted domain, (3) a new file is saved in $HOME/Downloads, /tmp, or cache immediately after.</p>
Detects
T1204.001 Malicious Link
Part of
DET0066 User Execution – Malicious Link (click → suspicious egress → download/write → follow-on activity)

Log sources and channels

Exactly as MITRE states them in x_mitre_log_source_references. Where a channel is vague, it is vague in the source; kevmap does not tidy it.

Log sourceChannelData component
auditd:SYSCALLexecve: Execs of chromium, google-chrome, firefox, libreoffice with http(s) in cmdlineDC0082 Network Connection Creation
auditd:SYSCALLopen,creat,rename: Writes in $HOME/Downloads, /tmp, ~/.cache with exe/script/archive/office extensionsDC0039 File Creation
NSM:FlowSuspicious URL patterns, uncommon TLDs, URL shortenersDC0085 Network Traffic Content

Mutable elements

Parameters MITRE marks as environment-specific. These are the knobs you are expected to tune; they are why an analytic is not a rule.

FieldDescription
TimeWindowTypical 10–20m between click and write.
UserPaths$HOME/Downloads, /tmp, ~/.cache, ~/.local/share.
HighRiskExtensionsexe, elf, sh, js, py, jar, iso, img, zip, rar, xlsm, docm, xll.
DomainRiskScoreHeuristic or TI score threshold for domains.

KEV CVEs whose mapped technique this analytic detects

CVEVendor / productState
CVE-2012-0767Adobe Flash PlayerMapped
CVE-2015-5119Adobe Flash PlayerMapped
CVE-2020-3580Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)Mapped
CVE-2022-21971Microsoft WindowsMapped
CVE-2022-24682Synacor Zimbra Collaborate Suite (ZCS)Mapped
CVE-2022-3038Google Chromium Network ServiceMapped
CVE-2022-3075Google Chromium MojoMapped
CVE-2023-2136Google Chromium SkiaMapped
CVE-2023-5217Google Chromium libvpxMapped
CVE-2023-5631Roundcube WebmailMapped
CVE-2024-38112Microsoft WindowsMapped