Malicious PDF — malware analysis report

Static analysis result for SHA-256 979bdcf1bdccdee7…

MALICIOUS

PDF

38.2 KB Authoring application: Solid Converter PDF
MD5: a274161442ce5d39c0b3f6fdb819e4a8 SHA-1: 6b24e2c0028e432d4b413e8a90ca552493f228da SHA-256: 979bdcf1bdccdee7e3c3835ea77b34ea6de06e6c79cc220dc7dd1cef819a546d
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File

The PDF contains a mass external link farm, with multiple URLs pointing to other PDF files. The document body text, while corrupted, mentions 'Porter cable air staple gun manual', suggesting a lure to disguise the malicious links. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier output strongly indicate malicious intent, likely for phishing or malware distribution.

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://lanechnge.org/uploads/1/3/0/2/130287457/9511636.pdf
    • http://nipmucprincipal.com/uploads/1/3/0/5/130551739/vazusepenejemada.pdf
    • http://tsv-fcblegenden.de/uploads/1/3/0/6/130620888/9960418.pdf
    • http://mikewilliamslivemusic.com/uploads/1/3/0/2/130291702/7494c656.pdf
    • http://fnvv.com/uploads/1/3/0/6/130621367/76482.pdf
    • http://d-team.info/uploads/1/3/0/6/130604778/79bb88520cd6.pdf
    • http://newfilmmakersadventure.com/uploads/1/3/0/5/130540746/paxaw.pdf
    • http://velardiillustration.com/uploads/1/3/0/6/130639452/f77017a9c3c42f.pdf
    • http://northwestuu.com/uploads/1/3/0/7/130738912/130738912.html#porter+cable+air+staple+gun+manual

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000011ab.bin
7abfe1e80fc5c4152864c5a229f77e62a39995264194b381fd83aca4a11dc08e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11AB 8916 bytes

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