Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7468486136e84f9…

MALICIOUS

PDF

81.2 KB Created: 2021-03-03 19:48:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46d4651f3ffea27abbfa38d2d1f0e890 SHA-1: e091cefcba9ccea3d9502eb6dcc3d7c7775f4eea SHA-256: c7468486136e84f92847ca945e4644db0ad77fa396ad8a95e03c8fd7eb74531f
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URL that, when clicked, leads to a phishing site. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or credential harvesting. The document body text is garbled, but the presence of the external URI and the overall detection suggest a social engineering lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://resalured.ru/strik?utm_term=why+is+there+no+hot+water+coming+out+of+my+faucet
    • https://luperexazim.weebly.com/uploads/1/3/6/0/136094329/4154019.pdf
    • http://cartest.pro/nfu_pet_insurance_claim_form41wg9.pdf
    • https://sekorora.weebly.com/uploads/1/3/4/8/134856449/mikilaxoxu-wolisaxavez.pdf
    • http://sis-paypal.com/how_to_bypass_a_zone_on_a_vista_128f1l5s.pdf
    • https://cdn.sqhk.co/jasurisunav/eKdMhaA/namosukugegonirizibunirod.pdf
    • http://itdiscounts.info/grade_2_english_worksheetjrbww.pdf
    • http://nakidki-alkantara.xyz/evidence-_based_medicine_ebm_guidelinesz3zjo.pdf
    • https://dubibezu.weebly.com/uploads/1/3/1/4/131453247/367470ce26.pdf
    • http://trackcreditscore.info/hampton_bay_remote_uc7078t_not_workingyi4ws.pdf
    • http://dress-russia.ru/lufelofagabipurofaivq2.pdf
    • https://raxorevowipafe.weebly.com/uploads/1/3/4/7/134765671/04e7a6ef205ad.pdf
    • https://cdn.sqhk.co/gasukatebu/ib3Nngc/hexa_jigsaw_puzzle_app.pdf
    • http://drovazvenigorod.ru/24825960819mj8by.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/rupatojuko/savawokotutunoranaxibot.pdf
    • https://s3.amazonaws.com/pexodugosa/wigalexojojejutep.pdf
    • https://s3.amazonaws.com/rumezo/72112127838.pdf
    • https://s3.amazonaws.com/luropi/88110803236.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_off0000fe75.bin
225e517d3d4901748568f03807c759a3dcd5b56f4de1770bc2175f642a2fd3d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFE75 5472 bytes
font_01_sfnt_off00011109.bin
43608bb6ab8f4a391c1eb49d9cfd84a6e22bbb3b5f63902d7b150d8c8150f480		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11109 11232 bytes

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