Malicious PDF — malware analysis report

Static analysis result for SHA-256 445d2646b874fa25…

MALICIOUS

PDF

35.9 KB Created: 2020-06-12 05:26:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8462970902f150d14df0c7d65e5937f9 SHA-1: 1649d608d1eecd8b12113f7d571a596f57999ac0 SHA-256: 445d2646b874fa2579fc7e4449437eeba1a7e6ee760c1094a533a65f9668c2e6
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to other PDF files on various domains. This pattern is indicative of a link farm designed to manipulate search engine results or distribute malicious content. The primary heuristic identified a link farm with 28 external PDF links, suggesting a deceptive or malicious intent to redirect users to potentially harmful content.

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://ru6ff.bpmtc.com/uploads/1/3/0/7/130739167/130739167.html#dcs+architecture+tutorial
    • http://konnectsolutionsltd.com/uploads/1/3/0/5/130588412/1507026.pdf
    • http://moderncountrydoctor.ca/uploads/1/3/1/4/131453595/2503706.pdf
    • http://thecypresstreehouse.com/uploads/1/3/1/0/131070652/9319b1f37a.pdf
    • http://webbjewelry.com/uploads/1/3/0/7/130739592/xazidovapazuji.pdf
    • http://journeykouture.com/uploads/1/3/1/6/131637402/8883550.pdf
    • http://hostmaster.redangelsnetballclub.com/uploads/1/3/0/4/130435929/0c62feb30a.pdf
    • http://audreylewisinteriors.com/uploads/1/3/1/4/131483112/kaxafasop.pdf
    • http://cmrconstruction.org/uploads/1/3/1/4/131453980/7268f78f3403fb.pdf
    • http://joyklas.net/uploads/1/3/0/5/130540037/4476503.pdf
    • http://clochconcrete.com/uploads/1/3/1/8/131858043/vizosabewubam.pdf
    • http://jtvogelllc.com/uploads/1/3/1/3/131379389/4de6da.pdf
    • https://sowekurodaji.files.wordpress.com/2020/06/67400273266.pdf
    • https://tokejar.files.wordpress.com/2020/06/75621711672.pdf
    • https://gutexizuv.files.wordpress.com/2020/06/mapigagibadedugo.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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000634c.bin
ec09129daa5fb00399519b1082cd916691d737e0cbaba3a04b37252b5956a362		 pdf-font-stream PDF embedded font (sfnt) at offset 0x634C 9660 bytes

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