Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa1449c45a7d7418…

MALICIOUS

PDF

42.0 KB Authoring application: QPDF
MD5: aeba5912d7da923326bc5ff34bc588c7 SHA-1: 71f4c075eef7c7952bc54dfe8f1d36ea5eeaa9db SHA-256: fa1449c45a7d741898780bf8806cebf78490c959cfcf65ed551ce074869bbf50
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of external links, a technique commonly used in SEO poisoning attacks to drive traffic to malicious sites. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier output further support its malicious nature. The embedded URLs are likely part of a phishing or malware distribution scheme.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://aimpointprojects.com/uploads/1/3/0/5/130543207/08828.pdf
    • http://networkmarketingmexico.com/uploads/1/3/0/5/130551174/c1cc52a6bc7eb.pdf
    • http://rickmillscounseling.com/uploads/1/3/0/4/130435757/vejetanegujuzudapox.pdf
    • http://wojtasekrealty.com/uploads/1/3/0/6/130605175/8839349.pdf
    • http://myprimeday.com/uploads/1/3/0/2/130270904/jugutobimasoxe-pudavuxibitero.pdf
    • http://nofrillsgallery.com/uploads/1/3/0/7/130739399/8d3f02901f.pdf
    • http://lgenms.com/uploads/1/3/0/4/130435592/kumasewaxorusuvam.pdf
    • http://distribuidoramaissaude.com/uploads/1/3/0/6/130621179/turanifuvigized.pdf
    • http://f5financialinc.net/uploads/1/3/0/5/130543107/7838172.pdf
    • http://ecomobiless.com/uploads/1/3/0/2/130274343/3894250.pdf
    • http://postfineartstudio.com/uploads/1/3/0/6/130620474/pamunep_xatoxoz_memek.pdf
    • http://yourblueprinttravel.voyagerwebsites.com/uploads/1/3/0/8/130874051/130874051.html#le+panafricanisme+aujourd%27hui+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004a4a.bin
df7250a9030c8624a54d2c8136c2ab1d942f2c66bb9a8669bf5e7a34b662ad85		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A4A 10124 bytes

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