Malicious PDF — malware analysis report

Static analysis result for SHA-256 c75c1fedac0c81ee…

MALICIOUS

PDF

41.2 KB Authoring application: Mobipocket Creator
MD5: f9d9f52c23891aab534ab16730d18183 SHA-1: a5655018be5a39eba959cf5a6d2c56030116bad9 SHA-256: c75c1fedac0c81ee05ad4048e359e53307f2b2cc4cbddbb3e124af1d645ab53e
150 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or distribution network. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution. No scripts were extracted from this sample.

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://consciouslyme.online/uploads/1/3/0/4/130435520/sifurikineworax.pdf
    • http://ctande.com/uploads/1/3/0/7/130740573/e18654627af247.pdf
    • http://mx.forthenrybuckskinners.com/uploads/1/3/0/3/130323167/7610309.pdf
    • http://www.ceramicprocincinnati.com/uploads/1/3/0/6/130603793/8436011.pdf
    • http://axedideelyingent.space/uploads/1/3/0/4/130483986/1992238.pdf
    • http://animspree.com/uploads/1/3/0/5/130588893/375181.pdf
    • http://jackmillerslanding.net/uploads/1/3/0/6/130603802/bevatizow.pdf
    • http://davenportwrites.com/uploads/1/3/0/3/130379138/nejujosirosowovejef.pdf
    • http://newenglandpowerlight.com/uploads/1/3/0/7/130739524/8804620.pdf
    • http://cowlickcompany.com/uploads/1/3/0/7/130775232/kixagafixupigi.pdf
    • http://www.instantarabic.com/uploads/1/3/0/2/130272266/eb04e.pdf
    • http://getleanin21.com/uploads/1/3/0/6/130603684/jepojoxebemororunefe.pdf
    • http://msdanahamilton.com/uploads/1/3/0/7/130776023/9f63d.pdf
    • http://eccevideos.com/uploads/1/3/0/2/130270990/6444928.pdf
    • http://msfm-international.com/uploads/1/3/0/6/130621298/7811339.pdf
    • http://lexington-mls.com/uploads/1/3/0/8/130813740/3855890.pdf
    • http://mtsarmusic.com/uploads/1/3/0/6/130604583/jemefigisa.pdf
    • http://apkzebra.com/uploads/1/3/0/2/130272369/6823740.pdf
    • http://morganneason.com/uploads/1/3/0/7/130776166/8944950.pdf
    • http://71-159-221-62.overtimefitness.com/uploads/1/3/0/4/130489377/130489377.html#ethiopian+airlines+boeing+737+max+8+crash+three+things+to+know

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000043d9.bin
fb29980c366bb003125ca5dbba335d998761c999a7bf008a01dbcb6f43cb35ab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x43D9 7516 bytes

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