Malicious PDF — malware analysis report

Static analysis result for SHA-256 29cf2e45c0faea96…

MALICIOUS

PDF

63.0 KB Created: 2021-02-13 22:04:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: a92680504a5f99421e69dd5d15ebf7eb SHA-1: 505e02baa60868e200803f90657dbceaff53a605 SHA-256: 29cf2e45c0faea96ba716f603aed53a95bb0803b17f31d4deb57e6dab97ce2a6
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL pointing to 'bologen.ru', which is likely part of a phishing or redirection scheme. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to trick users into visiting a malicious site, potentially for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/aws?utm_term=exemplos+de+tecnologia+da+informa%25C3%25A7%25C3%25A3o+na+logistica PDF link annotation
    • https://cdn.sqhk.co/fazejitev/dihijsW/61093113385.pdfIn PDF document text
    • https://cdn.sqhk.co/fakosopalo/gghgifF/toy_defense_2_battle_of_stalingrad_level_11.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4503987/normal_60067eb780378.pdfIn PDF document text
    • https://cdn.sqhk.co/bitubebo/gjjiRhj/oceanhorn_apk_paid.pdfIn PDF document text
    • https://cdn.sqhk.co/wazofovam/dm0RgiX/space_engineers_survival_kit_not_refining.pdfIn PDF document text
    • https://cdn.sqhk.co/povewepalu/PDwgePr/snapseed_for_mac_review.pdfIn PDF document text
    • https://cdn.sqhk.co/wujakegu/jifvidU/fashion_short_haircut_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/lepavenujal/d7ggidn/41483624685.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/sefiwegegagu/becker_cpa_auditing.pdfIn PDF document text
    • https://s3.amazonaws.com/goneduzum/16512516980.pdfIn PDF document text
    • https://s3.amazonaws.com/dojivewobasuval/bundesheer_uniform_sterreich_kaufen.pdfIn PDF document text
    • https://s3.amazonaws.com/sabegokek/aaja_nachle_song_video_pagalworld.pdfIn PDF document text
    • https://s3.amazonaws.com/gadumagabusodel/bangla_beauty_tips.pdfIn PDF document text
    • https://s3.amazonaws.com/risisipajole/indian_army_whatsapp_status_video_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/xidulumexi/87672183436.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_off0000b7bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB7BB 6000 bytes
SHA-256: c588bd1d4972472dc3fae7efec344f20baaa621a313b253a1f73a45e3fb8a14f
font_01_sfnt_off0000cb42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB42 10656 bytes
SHA-256: 76689d75420baf3176b5ff4e560117a65f0d0d719169a82eaf49537cbfa75b59

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