Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc2f05f9f5eedba2…

MALICIOUS

PDF

16.9 KB Created: 2020-03-12 14:18:22 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 0242f8a0cfd938acfc299822f56317cf SHA-1: 1ee943c39626c4d55e59b018d0e0db589ed91936 SHA-256: bc2f05f9f5eedba2b816b1cca8edab22c539058367026f5bac6361558ef2ed72
112 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF is identified as an image-only lure, typical of phishing campaigns. It contains numerous external links, with the primary one being http://charms2020.com/uploads/1/3/0/5/130550993/130550993.html#adb+shell+dumpsys+mcurrentfocus. This suggests the document's purpose is to redirect the user to a malicious website, likely for credential harvesting or further malware delivery. The ML classifier strongly supports this malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9961

Heuristics 4

  • 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.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 16 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://charms2020.com/uploads/1/3/0/5/130550993/130550993.html#adb+shell+dumpsys+mcurrentfocus
    • http://www.floydcentralcheer.com/uploads/1/3/0/4/130436288/rawin_gikipe_nilor_rigojuresoxerug.pdf
    • http://nadiaberyl.fr/uploads/1/3/0/4/130488779/1017790.pdf
    • http://billsduckcarving.club/uploads/1/3/0/6/130604200/2287659.pdf
    • http://primaldread.com/uploads/1/3/0/6/130621193/9192197.pdf
    • http://�rgangsvin.dk/uploads/1/3/0/6/130639815/lapoxadolipo.pdf
    • http://www.ttconnection.com/uploads/1/3/0/7/130775678/wimikefexiwakiwajabo.pdf
    • http://corsoboats.com/uploads/1/3/1/1/131164204/lasuzire.pdf
    • http://friendsoflakebarkley.com/uploads/1/3/0/3/130323285/8680915.pdf
    • http://www.advocatenzaandam.nl/uploads/1/3/0/5/130589217/6536217.pdf
    • http://wishclasses.com/uploads/1/3/0/5/130541023/lijol.pdf
    • http://mercy-reigns.com/uploads/1/3/0/7/130775639/3980394.pdf
    • http://secfail.shop/uploads/1/3/0/6/130639959/57fbd33df7775.pdf
    • http://www.soul7vn.com/uploads/1/3/0/7/130739351/1d4f764fb.pdf

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