Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcb9ee6119feb1fc…

MALICIOUS

PDF

50.6 KB Created: 2020-08-08 22:37:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 61e66c6f2b57a845475f367d9cdaded4 SHA-1: 6f67c7a4af83fbcd299af3f4d832098fcd5a3fd7 SHA-256: fcb9ee6119feb1fcaab61c3bbfe7a4fac18ae74c01cba6f55a2b5400ef793a91
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates a malicious redirector link, specifically `https://ttraff.cc/wb?keyword=trig%20identities%20problems%20and%20solutions%20pdf`. This suggests the document is designed to lure users into clicking malicious links, likely for phishing or malware distribution. No scripts were extracted from this sample.

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.cc/wb?keyword=trig%20identities%20problems%20and%20solutions%20pdf
    • http://files.alittlehand.net/uploads/1/3/2/6/132683070/beridezak-sifisajip-gixapibenilafo-furem.pdf
    • http://files.rescuetheunderdog.com/uploads/1/3/0/9/130969503/0bf4b172772989d.pdf
    • http://files.floydslighthouse.com/uploads/1/3/1/8/131871894/2833070.pdf
    • http://files.powerhouseladysmith.com/uploads/1/3/1/3/131398532/mawane-zubidogikum-potuga-suvunuwuv.pdf
    • http://files.2yogajoy.com/uploads/1/3/1/6/131607230/nopezole.pdf
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/risokiwawetijiliwumobusox.pdf
    • https://cdn.shopify.com/s/files/1/0439/1151/2232/files/97244827074.pdf
    • https://cdn.shopify.com/s/files/1/0432/6385/2708/files/dovuvixazi.pdf
    • https://cdn.shopify.com/s/files/1/0434/6901/3144/files/xolibimesupofiwugiruxut.pdf
    • https://cdn.shopify.com/s/files/1/0429/3486/1987/files/wazaranuwesiw.pdf
    • https://cdn.shopify.com/s/files/1/0428/3911/3895/files/orthographe_gratuit.pdf
    • https://cdn.shopify.com/s/files/1/0436/5628/2265/files/xilunoma.pdf
    • https://cdn.shopify.com/s/files/1/0438/0635/9714/files/sojenutekipusubo.pdf
    • https://cdn.shopify.com/s/files/1/0430/4614/2114/files/datoroxewafanafix.pdf
    • https://cdn.shopify.com/s/files/1/0434/4155/3575/files/les_turcs_anciens_et_modernes.pdf
    • https://cdn.shopify.com/s/files/1/0439/4388/7016/files/kizebadif.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b93.bin
b3dfb2f2c41da7350fc3755141d2fd0ea5796bb125df25fec831093623ff73df		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B93 2900 bytes
font_01_sfnt_off000065d6.bin
313ad13272edb43a4bbefec855d15234de845e31bff459a65af7723aca049c92		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65D6 5452 bytes
font_02_sfnt_off00007847.bin
cb496770acb01185becec2dba342e8d1681268f63a411f44e5e8ef3ffbab4cef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7847 14140 bytes
font_03_sfnt_off0000a4eb.bin
1d6ebf0a2698aa01807808650a02f8b66b5da49d8d57fb58c73e1a9e97fce268		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA4EB 16196 bytes

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