Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f60806daa71bbde…

MALICIOUS

PDF

66.2 KB Created: 2020-11-10 19:13:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a166d0c67e07475ac6df2db29dc1b20b SHA-1: 0730a6d05b644e621c663b45a7ec75c1813d7da2 SHA-256: 2f60806daa71bbde916aae4ff3c1e18f8c95642ec4039e195be173eb597d9e7f
144 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple heuristics indicating it is part of a link farm and an advance-fee scam lure. It embeds numerous external URLs, with one specifically pointing to a suspicious domain that appears to be part of a keyword-driven campaign. While no scripts were directly extracted, the PDF structure and embedded links strongly suggest a phishing or scam attempt, likely designed to lead users to malicious content or further phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

Heuristics 6

  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://traffking.ru/aws?keyword=super+shred+food+snacks
    • https://metubunotawe.weebly.com/uploads/1/3/4/5/134595280/fixafosapubobaxonoze.pdf
    • https://cdn-cms.f-static.net/uploads/4375522/normal_5f8c4c2397620.pdf
    • https://kufudazasa.weebly.com/uploads/1/3/4/6/134626120/butesomaw_xigaban.pdf
    • https://sonilotosoj.weebly.com/uploads/1/3/1/3/131379329/kofopalozebazazo.pdf
    • https://werijininen.weebly.com/uploads/1/3/4/6/134635560/kalanexakever.pdf
    • https://cdn-cms.f-static.net/uploads/4377905/normal_5f8af5e9f3dab.pdf
    • https://wetejitaxazis.weebly.com/uploads/1/3/4/3/134306742/bobaxebururizusir.pdf
    • https://cdn-cms.f-static.net/uploads/4392864/normal_5f8e728e632f9.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/busutafitufe/2002_toyota_prius_owners_manual.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/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c545.bin
6d2f2df9a216ef30676df5680ab498edc876fc27e439f4ae73e7da3625149277
pdf-font-stream PDF embedded font (sfnt) at offset 0xC545 5376 bytes
font_01_sfnt_off0000d788.bin
59b61765823e359bab98b4655b073f61174912a04011d7c027372e6d1a75c3fe
pdf-font-stream PDF embedded font (sfnt) at offset 0xD788 10824 bytes