Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d799cc4f902d79c…

MALICIOUS

PDF

35.7 KB Authoring application: PDF Studio
MD5: 53f4428219596ffc9d4cc80e32b21c96 SHA-1: 78b48a9d5d9245c3bc863cd5d09a9161b90d3a95 SHA-256: 3d799cc4f902d79c128614b91cbe5a5705b3818d445a73d725e02bdbf4eb33f4
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links, a common tactic for SEO spam and phishing campaigns. The document body, while containing garbled text, includes references to '2008 gmc acadia slt manual', suggesting a lure to attract users interested in vehicle information. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' further supports a phishing or malicious redirection intent. The primary URLs extracted are likely part of this malicious link farm.

Heuristics 3

  • 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
  • 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://proteus-internetmarketing.com/uploads/1/3/0/4/130488469/xigerenutex.pdf
    • http://vacationstressbusters.com/uploads/1/3/0/6/130639448/komitixivumefaz.pdf
    • https://tapefolixagene.weebly.com/uploads/1/3/0/4/130489090/5721463.pdf
    • http://mshipco.com/uploads/1/3/0/2/130270740/tonobewukoruv.pdf
    • http://timtucker.tv/uploads/1/3/0/6/130639739/755275505.pdf
    • http://cantortradegroup.com/uploads/1/3/0/6/130604039/130604039.html#2008+gmc+acadia+slt+manual

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000106a.bin
92eae09c2422bd61c72bf03e9df227a4e9fd19f6681beb1d43ae96f2f0ab2333		 pdf-font-stream PDF embedded font (sfnt) at offset 0x106A 8212 bytes

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