Malicious PDF — malware analysis report

Static analysis result for SHA-256 87e82e0e662757d2…

MALICIOUS

PDF

103.5 KB Authoring application: OpenOffice.org
MD5: ed76d85f3b30a198db521426c5d2a1d9 SHA-1: 4413b036ed40a9b57740df00d2543404ecd48aee SHA-256: 87e82e0e662757d2e994e2f7b9015bf05ed8f7b974f3c67c141b5b5ab7606315
162 Risk Score

Malware Insights

MITRE ATT&CK
T1059.001 PowerShell

The PDF contains a large number of embedded URLs, forming a link farm, which is a common tactic for phishing and malware distribution. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious intent. The heuristic 'SE_LOLBIN_RUN_COMMAND' indicates that the document contains instructions for executing commands, likely to download and run further payloads from the linked URLs.

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Visible LOLBin command execution instruction high SE_LOLBIN_RUN_COMMAND
    Document contains instructions or visible command text involving Windows script/execution tools such as PowerShell, mshta, cmd, rundll32, or regsvr32
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://yambego.com/uploads/1/3/0/5/130590677/85752b88f.pdf
    • http://stsbuildersllc.com/uploads/1/3/0/2/130288416/66b24c74d7.pdf
    • http://danishvillagekringle.com/uploads/1/3/0/2/130287845/rokupil.pdf
    • http://brookesummers.blog/uploads/1/3/0/6/130605384/butomidove.pdf
    • http://michellescreations.shop/uploads/1/3/0/5/130551675/8920187.pdf
    • http://150200martingale.com/uploads/1/3/0/5/130588875/lewuk.pdf
    • http://zenergieconseil.com/uploads/1/3/0/6/130621575/9668007.pdf
    • http://ihateqatar.net/uploads/1/3/0/7/130739433/likefunux-muretevu.pdf
    • http://salaz.photorobots.com/uploads/2020/01/28/tasevinerafasor-leduvetutola-jagamexaxewoven.pdf
    • http://a1412531xstreamtravel.xsideas.com/uploads/1/3/0/7/130775634/130775634.html#animal+farm+character+quotes+quizlet

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001356.bin
4780303c4d032caa0ce283980a2c5e5ac85187b65bf0605b31b471e889492903		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1356 8652 bytes

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