Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f1021243ad70da6…

MALICIOUS

PDF

71.6 KB Created: 2021-01-15 06:34:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 06eedebcea0a131feccd02ce89d55e72 SHA-1: bbf519e6a4193afa244a0c83c84baccbc4c7a1de SHA-256: 2f1021243ad70da6350a920e3f4c823b952ba828a3493238f1439157d73ad2cc
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. The embedded URL and document body content indicate a lure for a "clash of clans hack mod apk", suggesting a social engineering tactic to trick users into downloading potentially harmful software. No scripts were extracted, but the presence of external URIs and the nature of the lure point towards a phishing or malware distribution attempt.

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
  • 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://traffset.ru/123?utm_term=clash+of+clans+hack+mod+apk PDF link annotation
    • https://site-1180410.mozfiles.com/files/1180410/tenenipuxejoxowubuf.pdfIn PDF document text
    • https://cdn.sqhk.co/fofodafexadu/OiaLgjn/funny_talking_parrot_videos_2018.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453575/normal_5ff3b44551c02.pdfIn PDF document text
    • https://site-1166749.mozfiles.com/files/1166749/super_car_racing_multiplayer_mod_apk_unlimited_money.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446166/normal_5fc4efe6a6382.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496148/normal_5ffe1cef97daa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418747/normal_5fb84eb6ba036.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385614/normal_5f96422aa04b5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403676/normal_5fbe7b14f09fa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417543/normal_5f98797f27e48.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409826/normal_5fbd291f2f01c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000dc13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC13 5268 bytes
SHA-256: 7b3d9dafae1ab0f54c5bafefe0bb6accd837cd417c1c5896e7a5abd1e1098a34
font_01_sfnt_off0000edd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDD9 10616 bytes
SHA-256: acef4c3aeb88edcf96387a2803aefe8545599dcb287a391967ce58560c20fbbb