Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f4761976c882f3a…

MALICIOUS

PDF

36.7 KB Authoring application: QPDF
MD5: 32ac65b2330949b2ed97f08b0206feee SHA-1: 3be3a032479ba640a76342d2e6c4b5b4f7d5b5b4 SHA-256: 0f4761976c882f3abf78cc1519e08231f6763729d5bf9b80ebb666cbce1d4c77
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a large number of embedded URLs, identified by the PDF_SEO_LINK_FARM heuristic, which strongly suggests a link farm or redirection tactic. The ClamAV detection as 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier output further support its malicious nature. The embedded URLs likely lead to malicious content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://csgocave.net/uploads/1/3/0/3/130379653/poxafutadipigi.pdf
    • https://fofobined.weebly.com/uploads/1/3/0/5/130539165/3e082979c.pdf
    • http://beeswim.com/uploads/1/3/0/7/130739885/xagewopew.pdf
    • http://downsouthbait.com/uploads/1/3/0/6/130639701/rojagujuzema_potomokarowede_zuwewogusax_mimanavobifi.pdf
    • http://disneychristmasparty.com/uploads/1/3/0/4/130491947/toruwe-govegumikotad-nedijuxox-rukowiketud.pdf
    • http://cowle.de/uploads/1/3/0/6/130620515/fepilegamovo.pdf
    • http://arealpro.org/uploads/1/3/0/3/130312969/rutapodazevavulutaj.pdf
    • http://406cavoodle.com/uploads/1/3/0/5/130551641/mojagifokadaresib.pdf
    • http://tokeplusherbs.com/uploads/1/3/0/5/130539054/3d5ffa.pdf
    • http://danielshanethomas.com/uploads/1/3/0/6/130605107/7225808.pdf
    • http://michaelshusko.com/uploads/1/3/0/5/130543598/130543598.html#fallout+4+electricity

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001315.bin
f9eeff0a3f6c978d11aa37799d55ae6b0e070fd39a4464910059adda70310eb9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1315 9228 bytes

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