Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6cfdd885fc7f61f…

MALICIOUS

PDF

70.4 KB Created: 2021-03-15 21:04:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d66be4d21bfb5e89d4743ae02af8140e SHA-1: 7ec4e4d2a9074d17476ed9716201dfe258366b06 SHA-256: e6cfdd885fc7f61f8b5e1dcfe03efa0e4ded1dd0ad57dbc32afe1e49b1194894
116 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The sample is a PDF document flagged by ClamAV as a phishing trojan. Heuristics indicate it contains a callback phishing lure, prompting the user to call a phone number in a billing or security context. The embedded URL `https://ponafet.ru/strik?utm_term=how+to+activate+dish+wally` likely serves as part of the lure or a redirection to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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://ponafet.ru/strik?utm_term=how+to+activate+dish+wally
    • https://static.s123-cdn-static.com/uploads/4494165/normal_5fe2d51921173.pdf
    • https://cdn-cms.f-static.net/uploads/4385859/normal_60384c848da21.pdf
    • https://static.s123-cdn-static.com/uploads/4478716/normal_5fedc77b19feb.pdf
    • https://cdn.sqhk.co/bulunazi/gfHggfA/tutepujepiz.pdf
    • https://cdn-cms.f-static.net/uploads/4494166/normal_601d0b6d7e3b1.pdf
    • https://cdn.sqhk.co/jokawefezo/bgihlqp/63936726124.pdf
    • https://cdn-cms.f-static.net/uploads/4459329/normal_604a831f86bfe.pdf
    • http://metoxegid.mygamesonline.org/brother_hl2170w_setup.pdf
    • https://static.s123-cdn-static.com/uploads/4454170/normal_5febb703d8e6e.pdf
    • https://cdn.sqhk.co/baxoladipezu/h7jijiZ/lagumafabagoniloseni.pdf
    • https://cdn-cms.f-static.net/uploads/4454277/normal_6033f4440a6c8.pdf
    • https://cdn.sqhk.co/mowamukar/gf3geii/dream_league_soccer_2019_vs_fifa_mobile.pdf
    • http://mifirejetevina.getenjoyment.net/kejopojozutinofizutapid.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/tufujifinobiro/body_boss_2.0_workout_plan.pdf
    • https://uploads.strikinglycdn.com/files/b02eb086-e29d-4bc3-9ed6-faee98fd84d0/the_baking_bible_rose_levy_beranbaum.pdf
    • https://uploads.strikinglycdn.com/files/d7244b7d-6bf9-4ff4-a375-04986b70d601/zukipodajebabaret.pdf
    • https://s3.amazonaws.com/mipizaju/rokowowakoxigupijimosugu.pdf
    • https://s3.amazonaws.com/xopugup/suxuda.pdf
    • http://duziroro.myartsonline.com/lelopivapegurip.pdf
    • https://s3.amazonaws.com/loranoduzuja/square_numbers_list_1-_100.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_off0000d4c7.bin
ecb52ff7dcf2718438fb8b63f955fc4272be4fdf29f529627d3a5b5ec66404b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD4C7 5144 bytes
font_01_sfnt_off0000e662.bin
6e02e1df83821026c82a8944b88b2801a8ca55c45fe2886bd2f7ce03f421df9b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE662 10664 bytes

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