Malicious PDF — malware analysis report

Static analysis result for SHA-256 f44a0ce6268e5619…

MALICIOUS

PDF

122.4 KB Created: 2021-02-13 19:17:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 64e831c616dfdb52e188ab784ddb598f SHA-1: 824c7735a730401550f9689a42ee8ce672c6f40c SHA-256: f44a0ce6268e561959caa39bb04bede40e87fd775d777d611ec1168bb8591dea
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 document body contains text that appears to be a lure, directing the user to a suspicious URL. The presence of embedded URLs and the overall detection by security tools indicate a phishing attempt designed to lead users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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/123?utm_term=super+nice+mml+hax+script PDF link annotation
    • http://vkysnaya-eda.site/nbc_sports_tv_schedule_horse_racing283zv.pdfIn PDF document text
    • https://cdn.sqhk.co/nukuzulu/flgjUdv/54549550746.pdfIn PDF document text
    • https://zabugejagovim.weebly.com/uploads/1/3/1/6/131637755/71bd94e57.pdfIn PDF document text
    • http://itactical.xyz/2888372005989nop.pdfIn PDF document text
    • https://cdn.sqhk.co/wuvotalek/hgi93ge/fictions_choose_your_emotions_mod_apk_espanol.pdfIn PDF document text
    • https://kanodofeju.weebly.com/uploads/1/3/5/3/135325650/d982f.pdfIn PDF document text
    • https://tifavuloxu.weebly.com/uploads/1/3/0/7/130776439/debb159da44e130.pdfIn PDF document text
    • http://esagafow.fun/flow_3d_cast_user_manualvi2zv.pdfIn PDF document text
    • https://noverike.weebly.com/uploads/1/3/4/3/134349253/rovufavi_susabafuz_jewuzojotupijaz.pdfIn PDF document text
    • https://cdn.sqhk.co/fezivabuja/jgj8idv/gaming_50_games_in_1_switch.pdfIn PDF document text
    • https://wivozodibadire.weebly.com/uploads/1/3/0/7/130775536/nebamipivo_bolokuv_gulasumikex_zipusatesom.pdfIn PDF document text
    • https://zumaboletafu.weebly.com/uploads/1/3/1/4/131454272/belebefobibow_mevokifuxa_kuxorarexi.pdfIn PDF document text
    • https://cdn.sqhk.co/zoboxoba/higdhgk/2548325791.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/wonumafubij/wobadinegenelib.pdfIn PDF document text
    • http://lodaxiku.rf.gd/ignou_assignments_solved_paper.pdfIn PDF document text
    • https://s3.amazonaws.com/fomudebipefasu/68288692577.pdfIn PDF document text
    • https://s3.amazonaws.com/titugome/ankleshwar_to_pune_train_information.pdfIn PDF document text
    • https://s3.amazonaws.com/jemisajoda/98711808380.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_off0001a1ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A1EA 5344 bytes
SHA-256: c7341248dd757e4a1cac52cf6d4b8d60134c2be88127a9710a031acdb196fb8c
font_01_sfnt_off0001b3ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B3EA 12632 bytes
SHA-256: 784334e7e8e5e7bda984b519e1791ad54eb339f762e257ac08fa7632eb9b31a2

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