Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a7d7febc84eafef…

MALICIOUS

PDF

145.6 KB Authoring application: OpenOffice.org
MD5: 7bb0e3cbf67494d4dc18dd9b3d5b732c SHA-1: 685f97ccbf2703b53d2082c3b675524e65266625 SHA-256: 3a7d7febc84eafef762d8a5ed95eaeab6eae8b0ee58ce252337df89eead0f73a
120 Risk Score

Malware Insights

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

The PDF file was detected by ClamAV as Pdf.Phishing.TtraffRobotInstall-7605656-0. Static analysis revealed a large number of embedded external links, characteristic of a link farm designed to distribute malicious content or facilitate phishing. The document body contains a mix of obfuscated text and URLs, further supporting the malicious intent.

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://alisonreber.com/uploads/1/3/0/7/130775002/7986717.pdf
    • http://newdreamrenovations.com/uploads/1/3/0/4/130436410/e88b6622.pdf
    • http://drizzlehealthy.com/uploads/1/3/0/4/130490876/kifotevugab_komobabejatemo.pdf
    • http://150200martingale.com/uploads/1/3/0/6/130622038/7876282.pdf
    • http://kek.su/uploads/2020/01/28/6f59f.pdf
    • http://blueskycenteronline.com/uploads/1/3/0/6/130622005/zovozosijutudasami.pdf
    • http://podollangpis.devsite-1.com/uploads/1/3/0/4/130476135/130476135.html#proper+deadlift+form+video

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001469.bin
f7802053d30c9a19a103cdc3f7c25291c21283d13f4af08d92e3da80fc35e4e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1469 9504 bytes
font_01_sfnt_off00018684.bin
d907c570f1f8f2d62f38d7529dbf77de46ca3a1917ec53aca7a78bae59874b04		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18684 2616 bytes

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