Malicious PDF — malware analysis report

Static analysis result for SHA-256 233203a4ed4148bc…

MALICIOUS

PDF

72.2 KB Created: 2020-08-23 05:47:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 609c35e24b3237c85c3f456340847bc1 SHA-1: 79b5f048d91ee441c0d9cf29a591d211c32eb0fe SHA-256: 233203a4ed4148bcadde1342ccb9c7c90d7853a69f872f8b39f527376eac909e
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.com, disguised as a Warhammer 40k codex. It also exhibits characteristics of a link farm, embedding numerous other PDF links, likely for SEO manipulation or to spread malicious content. The document body is heavily obfuscated and contains the malicious URL, confirming the lure.

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://ttraff.com/pify?keyword=warhammer+40k+adeptus+custodes+codex+pdf
    • http://jalij.vetiverandsage.com/uploads/1/3/0/7/130775934/zopabisajuwokanemexu.pdf
    • http://lixefeb.teresasthriftytreasures.com/uploads/1/3/1/4/131405927/1105c50baab62.pdf
    • http://files.outbackatpostoak.com/uploads/1/3/0/7/130739294/dunidigavad-jobakokiwikipe-didoviwe-pumixer.pdf
    • https://cdn.shopify.com/s/files/1/0428/1974/7996/files/vrc_avatar_descriptor.pdf
    • https://cdn.shopify.com/s/files/1/0436/4396/1504/files/bitbucket_commands.pdf
    • https://cdn.shopify.com/s/files/1/0434/7995/7669/files/midewem.pdf
    • https://cdn.shopify.com/s/files/1/0465/2865/9614/files/nutubovepakerere.pdf
    • https://cdn.shopify.com/s/files/1/0461/3921/1929/files/48429054648.pdf
    • https://cdn.shopify.com/s/files/1/0436/3947/2288/files/97284033207.pdf
    • https://cdn.shopify.com/s/files/1/0439/8612/4958/files/biochemistry_notes_for_medical_students.pdf
    • https://cdn.shopify.com/s/files/1/0438/3028/0352/files/xawalexufedib.pdf
    • https://cdn.shopify.com/s/files/1/0432/2626/7806/files/88560433160.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_off0000d7ce.bin
d3995603b88eb2cebb81fd599700dc90c45f28432306763f53649a03259b49f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD7CE 5736 bytes
font_01_sfnt_off0000eb45.bin
9d4224dec225c3bfa6acbd96daa42fdc668301906e7d34f0d1b29357498ccd3d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEB45 12512 bytes

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