Malicious PDF — malware analysis report

Static analysis result for SHA-256 46efb2ab36368605…

MALICIOUS

PDF

88.6 KB Created: 2020-12-23 03:13:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 581d1a754927bacdb3541c16ea7ce493 SHA-1: c6fef172d3204fff84f610853c7763a28965dcd7 SHA-256: 46efb2ab363686052ed3148005e3ef135e3abea952f7c8633d6a7f3c16ce3834
154 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'traffking.ru', which is also listed as an embedded URL. The document body, though heavily obfuscated, contains text related to 'Domino pizza menu near me', suggesting a lure. ClamAV also detected this file as 'Pdf.Phishing.Trojan'. The presence of a malicious redirector strongly indicates an attempt to lead the user to a malicious site for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • 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://traffking.ru/strik?utm_term=domino+pizza+menu+near+me In PDF document text
    • https://cdn-cms.f-static.net/uploads/4391315/normal_5fa9c50963155.pdfIn PDF document text
    • https://pebetojakudasud.weebly.com/uploads/1/3/4/8/134879391/5e6bea8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489415/normal_5fc545f99334c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426073/normal_5fb73c14d183d.pdfIn PDF document text
    • https://winugemu.weebly.com/uploads/1/3/1/0/131070294/xaxurom-zuvub.pdfIn PDF document text
    • https://riwetomawojok.weebly.com/uploads/1/3/4/5/134516188/6fc7a1e25309.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447253/normal_5fd184da7e80a.pdfIn PDF document text
    • https://rikurifijuse.weebly.com/uploads/1/3/4/6/134681474/jomukirenetalezatobi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/risalenefazozo/pinobigiziwu.pdfIn PDF document text
    • https://s3.amazonaws.com/pegebunov/android_game_modern_combat_3.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011e1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E1C 4804 bytes
SHA-256: 3e23a7fdbfdca5e0b61d8fc3805a03c21a1c93368995fbd709bda9b716d62a1d
font_01_sfnt_off00012e69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12E69 11616 bytes
SHA-256: 369236c310bc10b83a6fcee7ae779f3be23b2d6b4628169e3b72a6b5456ce206