Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7d93007c1c8a24f…

MALICIOUS

PDF

35.0 KB Created: 2020-04-08 10:02:24 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 6632d8ac8a42dd7411b21c826ea385d8 SHA-1: b976c6e223fea2c48f6935634a9c6ec73fb59065 SHA-256: c7d93007c1c8a24fc28e7a0280436d0f988049073a8ddd722760e9208f6333d5
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of embedded external links, a technique often used for SEO spam or to redirect users to malicious sites. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior, indicating a likely attempt to manipulate search engine results or distribute malware. The document body contains garbled text and a reference to 'Word whizzle it serves answers', suggesting a lure or distraction. The primary IOCs are the numerous external URLs found within the document.

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://wavymoneymachine.com/uploads/1/3/0/3/130379696/130379696.html#word+whizzle+it+serves+answers
    • http://apple-techsaz.net/uploads/1/3/0/2/130288364/befixosebi-lovomu-xixiduxiwa-gejuvovivi.pdf
    • http://affectedbyanxiety.com/uploads/1/3/0/5/130589171/fanisivodefufel.pdf
    • http://sdyjewellery.com/uploads/1/3/0/6/130640141/5058163.pdf
    • http://sigmagen.com/uploads/1/3/0/9/130969057/1a00c.pdf
    • http://sattv.info/uploads/1/3/0/7/130776100/0a8a8aa9127.pdf
    • http://4d-planet.com/uploads/1/3/0/4/130435600/8232207.pdf
    • http://taichiathome.com/uploads/1/3/0/2/130291658/104025.pdf
    • http://okanagancottagerentals.com/uploads/1/3/0/6/130621980/8c0488.pdf
    • http://cabinanswers.com/uploads/1/3/0/5/130545827/xefedavobimor-mixasik.pdf
    • http://backwoodsbeersoaps.com/uploads/1/3/0/2/130287890/7556516.pdf
    • http://offthegrid24.com/uploads/1/3/0/3/130379427/sijuzezitisemek-minizomet.pdf
    • http://lawrencemillerebooks.com/uploads/1/3/0/8/130874524/sapixudubo-komufomov.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_off00006149.bin
befae79e897013a8d7e95730a0eb383188c18a33487d4434df8862fb01db17cd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6149 7636 bytes

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