Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2bb4ab49dcc8f86…

MALICIOUS

PDF

40.7 KB Created: 2020-08-17 15:48:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54d582b9c00e5c3768476680676c593a SHA-1: fb8aecc2201b5064b21aa048f53c983a69e8a0ea SHA-256: f2bb4ab49dcc8f86fed42a1f8ffff0268014986adc81543e9382460a087807e5
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=online+fishbone+diagram+template'. This URL is likely part of a phishing or scam campaign designed to redirect users to malicious content. The document body also contains this URL and numerous other links hosted on Shopify, suggesting a link farm or SEO poisoning tactic to improve search engine visibility for malicious content. 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.ru/pify?keyword=online+fishbone+diagram+template
    • http://files.oscarmazzocco.com/uploads/1/3/0/7/130739280/pitizab_nujeg_kobojikivope.pdf
    • http://tadilifam.pcmusicinstruction.com/uploads/1/3/1/6/131607163/fobudel.pdf
    • http://files.phoenixhypnobirthing.com/uploads/1/3/1/6/131606687/2736204.pdf
    • http://vobet.avrildunoyerphotographies.com/uploads/1/3/0/8/130874247/wosoxetijosisetafore.pdf
    • https://cdn.shopify.com/s/files/1/0431/8684/7905/files/dutisimebovasixenimamagi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/12729031526.pdf
    • https://cdn.shopify.com/s/files/1/0431/9199/2481/files/84539666331.pdf
    • https://cdn.shopify.com/s/files/1/0433/8168/6423/files/26520220033.pdf
    • https://cdn.shopify.com/s/files/1/0431/4093/9933/files/xijusogolojovukegetaxanan.pdf
    • https://cdn.shopify.com/s/files/1/0431/1298/8821/files/crossfit_bodyweight_workout.pdf
    • https://cdn.shopify.com/s/files/1/0436/8950/9017/files/24468793976.pdf
    • https://cdn.shopify.com/s/files/1/0447/3444/7770/files/belly_fat_diet_for_dummies.pdf
    • https://cdn.shopify.com/s/files/1/0428/6867/0620/files/lekovozodofuse.pdf
    • https://cdn.shopify.com/s/files/1/0434/0721/2709/files/72681046249.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/povumad.pdf
    • https://cdn.shopify.com/s/files/1/0431/3907/2161/files/10490659022.pdf
    • https://cdn.shopify.com/s/files/1/0430/0275/7281/files/balance_sheet_analysis_software.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_off000060e1.bin
bbb6767b315a4862b19a2dd63a3b596ec930537a501308dca64d7885fbe9e034		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60E1 5620 bytes
font_01_sfnt_off000073c8.bin
56a84e7c91e8467baafcc14b2b2dd431d03bddf2864a0cf59eee6cbaaec842b8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73C8 10036 bytes

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