Malicious PDF — malware analysis report

Static analysis result for SHA-256 82897cf04ec4b521…

MALICIOUS

PDF

70.1 KB Created: 2020-12-24 11:49:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: be77c5bb698aac100f3642bed33676c5 SHA-1: 9be1367dc43794dfcc56c17c2d02d50f33c0b8a1 SHA-256: 82897cf04ec4b5212bb79d6d24186e6e274bed18e23515547a3d15a658729179
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI that directs the user to a URL associated with a "car run racing super car race mod apk". This, combined with the ML classifier and ClamAV detection, strongly suggests a phishing or malware distribution attempt. No scripts were extracted, but the presence of an external URI indicates an attempt to download a secondary payload or redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://traffnew.ru/strik?utm_term=car+run+racing+super+car+race+mod+apk PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4448719/normal_5faae2ccf1fc9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378623/normal_5f8b48851124b.pdfIn PDF document text
    • https://cdn.sqhk.co/xakatikakizi/0jf01id/snapped_killer_couples_season_6_episode_3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369142/normal_5f8aa50515d97.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408483/normal_5fc1e56197293.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/be13095e-1b70-4076-8f2f-5911294c1a7f/42229615847.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cc5ab92d-f414-4f99-a0b2-c6cb5d650976/romugenidobiboxi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7494653d-3494-4424-9092-f1cf1e0e8c6f/vorajubuwawe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f1a5b391-ea30-4503-9814-3ca9e988cb6e/white_hawks_in_colorado.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c25de7ea-5171-4bb4-add1-6cd7e1528158/7688031629.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b47f71e-b475-40a7-8186-b52bedb473ef/47970137361.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/67994f31-256d-4885-a012-3d1878b348aa/14437611088.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_off0000d64f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD64F 5332 bytes
SHA-256: 6b276e673cb44ef636de97e10001ba8f4cfedbb46d7448985534f9d0f1101159
font_01_sfnt_off0000e85a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE85A 10360 bytes
SHA-256: e2f02d5687da4f9d13d37ff5984381688ffbca86d0c68dbbc07d3fb3b82c323b