Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f342659a9db245c…

MALICIOUS

PDF

31.1 KB Created: 2020-06-20 18:47:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5bcb22a56ec376372c95e3aa832fc7b4 SHA-1: 01b7ec141bd82feab8308ca9d0ae6feabdc252a5 SHA-256: 2f342659a9db245cca9fd3fb2416bc8538a9f80788ee6a640de49824f7da1a69
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to other PDF files. This behavior is indicative of a link farm or a mechanism to distribute further content. The document body mentions 'Ecdl module 1 answers', suggesting a lure to trick users into clicking the provided links. No scripts were extracted, and the primary malicious activity observed is the distribution of external links.

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.
  • 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://jenuinehealinghands.com/uploads/1/3/2/7/132712490/132712490.html#ecdl+module+1+answers
    • http://mx.vancenc.com/uploads/1/3/0/5/130588281/biwasapul_rodilid_rugobufisos.pdf
    • http://budapestupclose.com/uploads/1/3/0/5/130589045/03c969ed3ba9d05.pdf
    • http://onlene.org/uploads/1/3/0/9/130969671/zujapivuxopa.pdf
    • http://300wyandotte.com/uploads/1/3/0/2/130272462/wegob-jogox-jawit-fipulefete.pdf
    • http://ehomecareconnect.com/uploads/1/3/1/6/131636843/3048193.pdf
    • http://gracemarekphotography.com/uploads/1/3/0/5/130590295/8892da763372.pdf
    • http://indianflavour.co/uploads/1/3/0/6/130604350/wonarim.pdf
    • http://roundrockitconsulting.com/uploads/1/3/0/6/130621084/532b8c5e.pdf
    • http://74-123-72-38.mgwnet.com/uploads/1/3/0/5/130590521/zunasofenalud_ruzowow.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000040cc.bin
a43a873d4332dd5c353cbd7e5fe08bcca4bde20ea563cb8e07e6644ca1b5aaf2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x40CC 4940 bytes
font_01_sfnt_off0000517f.bin
c2c9427221ddedf063e24955911c9c7f6d8379f70009db55a3d2ed6bce00d181		 pdf-font-stream PDF embedded font (sfnt) at offset 0x517F 9184 bytes

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