Malicious PDF — malware analysis report

Static analysis result for SHA-256 d774387d2629edc6…

MALICIOUS

PDF

74.6 KB Created: 2021-02-24 01:43:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 14095f20f0832ef8fdef3b41d19be2da SHA-1: 4d7b6d05f6a8135eb7937f750c3cb92b500d5b81 SHA-256: d774387d2629edc69a93f8aadd6bdcd930d2879c93d8f2d2c8bbffb06bf1be26
96 Risk Score

Malware Insights

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

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

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://bologen.ru/aws?utm_term=genie+silentmax+1000+reset+code PDF link annotation
    • https://cdn.sqhk.co/tumowara/Hhfqs14/gisunevuvesobugemoregij.pdfIn PDF document text
    • http://hurleyshamburgers.com/libro_la_iliada_para_niosqzpu3.pdfIn PDF document text
    • https://cdn.sqhk.co/duzixulok/3jbFgjr/banabapipa.pdfIn PDF document text
    • http://profaudit32.ru/50362515779ct68k.pdfIn PDF document text
    • https://cdn.sqhk.co/pulisamog/jhvja2P/nejimilile.pdfIn PDF document text
    • https://cdn.sqhk.co/nizolurinidi/OOT2jjD/54805776376.pdfIn PDF document text
    • https://cdn.sqhk.co/rivotoxupow/eTAA2zL/different_cake_designs_for_husband_birthday.pdfIn PDF document text
    • https://cdn.sqhk.co/gonolesuzam/iiihbhi/cheats_for_minecraft_xbox_360.pdfIn PDF document text
    • https://cdn.sqhk.co/bidekidarub/Lhisnje/6443817432.pdfIn PDF document text
    • https://cdn.sqhk.co/puxedimuwo/iihcZgd/blue_heeler_puppies_for_sale_near_me.pdfIn PDF document text
    • https://cdn.sqhk.co/jilelemo/hsBunie/mugotupidibagutegeraxum.pdfIn PDF document text
    • https://cdn.sqhk.co/lelogusobade/jjIQthu/mini_golf_3d_city_ace_stars_arcade.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxawexa/ahbjjhc/financial_times_logo_png.pdfIn PDF document text
    • https://cdn.sqhk.co/zagusebipin/fididQW/94416625869.pdfIn PDF document text
    • http://edayafar.xyz/13734710342mc1ho.pdfIn PDF document text
    • http://reabook.online/54031783372ajy7a.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/temujonuwu/bushnell_bowhunter_rangefinder_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/zifozujiwi/vonuxesagebopeb.pdfIn PDF document text
    • https://s3.amazonaws.com/xoguwavosuje/galactik_football_game_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/vigevot/86645014438.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_off0000e675.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE675 5380 bytes
SHA-256: a3f6ae74eda08054a4b1a10f01f8c8e311d3b7b4b091c5d055ca115d0c176537
font_01_sfnt_off0000f8a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8A9 10744 bytes
SHA-256: 164ca0e1ba06885df48f5bc0f9ae79702c503702333e5f9b7f0e9388bcfb9c55

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