Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e7bfd3a7284cde1…

MALICIOUS

PDF

77.5 KB Created: 2021-03-28 11:59:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: a298d5331e692ad0643824ee8c86e427 SHA-1: 51094253423db943593a6c1f3d768118932e962c SHA-256: 6e7bfd3a7284cde15ca5042d41c774268a14f398a5008cfe245cbf9f70ddb1ba
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://kuzutuzo.ru/award?keyword=ap+grama+sachivalayam+jobs+notification+pdf PDF link annotation
    • https://cdn.sqhk.co/ripowusaro/hhahdjh/archery_games_online_y8.pdfIn PDF document text
    • https://cdn.sqhk.co/sileluzorupo/h3igajb/cross_road_signs_images.pdfIn PDF document text
    • https://xaxepilote.weebly.com/uploads/1/3/4/2/134265473/5f5b066defe40.pdfIn PDF document text
    • https://bozuwosumexoxal.weebly.com/uploads/1/3/2/6/132682772/2420551.pdfIn PDF document text
    • https://cdn.sqhk.co/duwenaxiseve/gfjeUhg/hockey_prediction_today.pdfIn PDF document text
    • https://cdn.sqhk.co/kotoweraga/hjcviie/dabutasogidopanozafo.pdfIn PDF document text
    • https://cdn.sqhk.co/xurajalijok/bU9Peij/download_mirrorgo_stream_recorder.pdfIn PDF document text
    • https://luxabilep.weebly.com/uploads/1/3/0/8/130873941/fewusijizobipanol.pdfIn PDF document text
    • https://cdn.sqhk.co/fepogosu/picbiiG/scene_synonym_noun.pdfIn PDF document text
    • https://cdn.sqhk.co/xinefegepe/Hihjiii/classic_cars_for_sale_by_dealer_in_california.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/lowuwofuxali/gta_vice_city_cheat_codes_psp.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f2690cf-f70b-4e34-8f87-6bbb566afae0/pivatulamoweferasopufadop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d19ab7d-3334-40dd-8736-8eafb8adfae2/57154163628.pdfIn PDF document text
    • https://s3.amazonaws.com/lorerexeg/renenebumamexil.pdfIn PDF document text
    • https://s3.amazonaws.com/sazixipame/jelug.pdfIn PDF document text
    • https://s3.amazonaws.com/lofese/arm_linked_template_dependson.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b6f88cf6-c55a-4599-8bd4-043816584eb3/kizelaxigakijabobo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/34fa18b5-2f87-4650-bd16-957240da012e/28962292411.pdfIn PDF document text
    • https://s3.amazonaws.com/luworizesupox/degijafi.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e2bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2BB 5608 bytes
SHA-256: a1ebbc51fa2ff7e8ee4bf6a1aa8c677570d6c25f9b41688e514a0abac9c4c2e4
font_01_sfnt_off0000f5a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF5A5 10836 bytes
SHA-256: c6355ad713f20decd8e33e28ff372e153be88e93be43717229ec5321fb6a0fd0
font_02_sfnt_off00011a9d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11A9D 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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