Malicious PDF — malware analysis report

Static analysis result for SHA-256 46261efa59aaa665…

MALICIOUS

PDF

79.4 KB Created: 2020-11-24 19:42:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 32fd8e95c47a2133d5b7a115beff4fe7 SHA-1: 326983d2230137b317fd3b9a2d2e8c52f2a37892 SHA-256: 46261efa59aaa665d853229994b06549317716643704564dc54c724d533e1d96
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://cctraff.ru/strik?utm_term=eye+of+power+3.5'. This URL is likely used to lure victims to a phishing or malware distribution site. The ML classifier and ClamAV detection further support the malicious nature of this PDF, indicating it's a phishing or trojan delivery mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://cctraff.ru/strik?utm_term=eye+of+power+3.5 In PDF document text
    • https://cdn-cms.f-static.net/uploads/4387819/normal_5f94a8e40cde2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/wilugugo/wakafogedugudaduxukibe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cec6d783-2750-4edb-a201-a1792dc7dc5e/25185228170.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/84e32732-1063-4d24-8d4c-548b74e6fd62/bunker_hill_security_safe_battery_dead.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5cca269f-2d85-4255-8c2d-6b6b04f09b2a/yamaha_rx_v479_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/zidosozawok/winedutorikuvobul.pdfIn PDF document text
    • https://s3.amazonaws.com/kefiperizonofu/63623064880.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/60b2aece-e63d-439b-8327-73c866dc3391/nc_eog_5th_grade_math_practice_test.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/647a21bf-8d7e-4825-a9f2-715e47b60208/22294273516.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/38494ca1-2392-4f07-a6a3-788012a822c0/warlock_3._5_handbook.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/604108b7-e49f-4d23-8a5c-10c75a7e89fe/intensit_circuit_en_driv.pdfIn PDF document text
    • https://s3.amazonaws.com/vogubivajavofu/venus_factor_diet_plan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be941e9a-a5ae-4f5b-a2dc-c192755dce78/32878001888.pdfIn PDF document text
    • https://s3.amazonaws.com/ravuxudibure/pokemon_gen_4_natures.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ecc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECC8 4500 bytes
SHA-256: 4d29875815e5e10f3a076ba603458826d4f8e9642acd84b3690013d2147e36ce
font_01_sfnt_off0000fc46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC46 11328 bytes
SHA-256: 41722153d015184d0e908a5f8c52143cda8020a73957b7d483ca5737a6878505
font_02_sfnt_off000122b0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x122B0 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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