Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d078a6a8d67f4a2…

MALICIOUS

PDF

37.0 KB Authoring application: Soda PDF
MD5: 1a9a49632fbcb9c10a80bd0dff5cef19 SHA-1: 822f53dfe3442ec291553b4dab646077cad5335f SHA-256: 7d078a6a8d67f4a285fe09ecfef74db244ca3d5c8f5f93ad6a403de04b443bce
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF file contains a large number of embedded URLs pointing to external PDF documents, a technique often used for SEO manipulation or to distribute malicious payloads. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the ML classifier strongly indicate malicious intent. No scripts were extracted, but the primary attack pattern involves directing users to a network of linked documents.

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 https://xifijekewokira.weebly.com/uploads/1/3/0/3/130323997/nevoruwil-xazezaf-zabova.pdf
    • http://thesailingbroker.com/uploads/1/3/0/2/130289021/jezoxetimi_jakisevize.pdf
    • http://morganbrookfarm.com/uploads/1/3/0/6/130640128/3218228.pdf
    • https://luwenutopu.weebly.com/uploads/1/3/0/4/130477414/cb70a2f0bfde.pdf
    • https://zuzesazubaj.weebly.com/uploads/1/3/0/5/130551096/kobawijifowafon.pdf
    • http://whitewillowcollective.com/uploads/1/3/0/6/130604834/5527893.pdf
    • http://madazev.papa.st/uploads/2020/01/27/2144538.pdf
    • http://mountainbikegreenville.com/uploads/1/3/0/6/130620475/nosowisesabexufefeka.pdf
    • http://nvholidaybazaar.com/uploads/1/3/0/2/130289400/6717932.pdf
    • http://kindpnw.com/uploads/1/3/0/6/130603971/komixegusevo-xikepubefa-miduluvalovesof-susozaxuwubiwoj.pdf
    • http://rehphotography.org/uploads/1/3/0/5/130550760/130550760.html#the+french+defense+chess+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000145c.bin
48341855cea71e9fae8d95dee4ec486fa38e719fd49e9538c6089d7838561946
pdf-font-stream PDF embedded font (sfnt) at offset 0x145C 8412 bytes