Malicious PDF — malware analysis report

Static analysis result for SHA-256 29be0f32270e68e8…

MALICIOUS

PDF

30.5 KB Authoring application: Adobe PDF Library 9.0
MD5: d44257fae095bf52da7078af45df4e39 SHA-1: 639d0f56684eafab0661885061919a2497aa020e SHA-256: 29be0f32270e68e81735088cf80178a65af68d98abd69c52590dfe35a0fe7a01
150 Risk Score

Malware Insights

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

The PDF contains a large number of embedded URLs, with the primary heuristic identifying it as a link farm. The ClamAV detection and ML classifier strongly indicate malicious intent, specifically related to phishing or traffic redirection. The embedded URLs point to various domains, many of which are likely part of a coordinated effort to manipulate search engine results or distribute malware.

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://yogamgm.com/uploads/1/3/0/4/130483132/remug_denatided.pdf
    • https://datusuparof.weebly.com/uploads/1/3/0/3/130313436/5070421.pdf
    • http://wemerij.majesticpin.site/uploads/2020/01/28/7654465.pdf
    • http://andreatomassi.com/uploads/1/3/0/6/130620519/b9094c6e2a.pdf
    • http://lak.vincentecodesigns.com/uploads/2020/01/28/0b4473.pdf
    • http://mmakhaolak.com/uploads/1/3/0/2/130274151/3657427.pdf
    • https://velebujanegutib.weebly.com/uploads/1/3/0/5/130588937/048a74af780f8.pdf
    • http://mageda-design.com/uploads/1/3/0/4/130483351/woleravagod.pdf
    • http://taunsighald.dk/uploads/1/3/0/5/130545597/ribomeripog.pdf
    • http://bsa-sccc-pack301.com/uploads/1/3/0/2/130272472/130272472.html#absolute+monarchs+of+europe+worksheet
    • http://bsa-sccc-pack3

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001199.bin
328814e84951fe2c7a2e2fd25f7e4c9d4357bf3c247bf504058883db31ff804a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1199 7756 bytes

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