Malicious PDF — malware analysis report

Static analysis result for SHA-256 abdf197fe778538c…

MALICIOUS

PDF

42.3 KB Authoring application: Soda PDF
MD5: 08d0d3fdb0919c126e440a630dd5b5eb SHA-1: cf8715c41e11c6e08ded37074d3fd53b3b9d34ee SHA-256: abdf197fe778538c98d642d0b9a1c9c9c600c6fdbb1adae80e37fbc0b37363a3
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a coordinated effort to distribute content or redirect users. The ClamAV detection and ML classifier further support its malicious nature, classifying it as Pdf.Phishing.TtraffRobotInstall. The document body text is heavily truncated and contains garbled data, making it difficult to ascertain a specific lure, but the overall structure points to a link-farming or redirection attack.

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://northwestembroidery.net/uploads/1/3/0/3/130379294/5d5d987de.pdf
    • http://circoestodo.org/uploads/1/3/0/7/130775701/2261001.pdf
    • http://nikkinormanphotography.com/uploads/1/3/0/6/130621963/8e60698.pdf
    • http://nowator.eu/uploads/1/3/0/7/130740158/jebuzejarinetijivo.pdf
    • http://nikkileon.de/uploads/1/3/0/4/130476650/fitotimememinepexi.pdf
    • http://crabbybirds.co.uk/uploads/1/3/0/8/130873952/4a709daa.pdf
    • http://benstroud.com/uploads/1/3/0/6/130604307/fonawekat-dubodegem-vasusibet.pdf
    • http://claygatlin.com/uploads/1/3/0/6/130639891/688ef0f5.pdf
    • http://beboldbebrilliant.com/uploads/1/3/0/2/130272328/cabf16.pdf
    • http://trenchesofjudgment.com/uploads/1/3/0/7/130738939/wizarinibo.pdf
    • http://www.wecaremi.com/uploads/1/3/0/6/130621211/dadatijov.pdf
    • http://innovatorsunion.com/uploads/1/3/0/2/130271058/2155824.pdf
    • http://conqueracademy.com/uploads/1/3/0/2/130289421/c8da6d4c25b.pdf
    • http://fnyr1.bpmtc.com/uploads/1/3/0/7/130738526/130738526.html#penicillin+allergy+carbapenem
    • http://crabbybirds.co.uk/uplo

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004bc6.bin
48eb1879d19a666376ca27068b9940499a50ef349996ce5f3385cfbac8f1e082		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4BC6 8620 bytes

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