Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b7a4ed656bcc8a9…

MALICIOUS

PDF

80.5 KB Created: 2021-03-05 19:40:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54975916fece84b21f08e4e60c8c9c99 SHA-1: 9b6c11312eca2dce43748c8df819516d81b79b73 SHA-256: 6b7a4ed656bcc8a9eb6c9adac16cf99f061abd9208a21f5cf12d8e00c3dbade1
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URI pointing to a suspicious domain, likely intended to deliver a malicious payload or phish for credentials. The document body, though heavily obfuscated, references 'Gta online money glitch xbox one', suggesting a lure for users interested in such topics. No scripts were extracted, but the PDF structure itself facilitated the embedding of the malicious URL.

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://jacksth.ru/wix?keyword=gta+online+money+glitch+xbox+one
    • http://hotloveme.online/632704478093prf9.pdf
    • http://haustova.com/wf_2630_epson_scaneo5kf.pdf
    • http://gloslides.com/10805240498npfpq.pdf
    • http://counterman.ru/didisasedejij5s7qa.pdf
    • http://runmasten.online/fakezegonuzipadixuy7nkt.pdf
    • http://zonerokemub.getenjoyment.net/luzirufevirilakogunazaxuv.pdf
    • http://astrohelp.space/352318671828isd6.pdf
    • https://cdn-cms.f-static.net/uploads/4490375/normal_6022637101ee8.pdf
    • http://meinekarten.best/persuade_inform_entertain_song77e1r.pdf
    • http://nigma24invest.online/emancipation_a_life_fable_commonlit_answersoroh9.pdf
    • http://veselutut.mywebcommunity.org/12926452951.pdf
    • https://cdn-cms.f-static.net/uploads/4481825/normal_60303320a1996.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/7c7da658-c92d-4ef6-87ff-3fa7e950f359/how_to_connect_motorola_monitor.pdf
    • https://s3.amazonaws.com/zuguvoxoki/87836716407.pdf
    • https://s3.amazonaws.com/pukaridimupo/28166681655.pdf
    • https://uploads.strikinglycdn.com/files/fb1f7768-7af5-403b-8bba-432035f0d826/3915924974.pdf
    • https://s3.amazonaws.com/galinikagopit/the_golden_goblet_sparknotes.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f093.bin
5b199877c755ad11f7e68eebb60c78e814e0cdd8b35774ff53a91c9248beb360
pdf-font-stream PDF embedded font (sfnt) at offset 0xF093 5068 bytes
font_01_sfnt_off000101bf.bin
f0b602c60c3d58c8da795a1040328c179f12cb11877b5edd3fa083b2640a7b3b
pdf-font-stream PDF embedded font (sfnt) at offset 0x101BF 10852 bytes
font_02_sfnt_off000126d5.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x126D5 4324 bytes