Malicious PDF — malware analysis report

Static analysis result for SHA-256 b9777c2aae17b520…

MALICIOUS

PDF

75.9 KB Created: 2021-04-04 19:46:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9ae3a6f06080d49b3ea4f2645ca94223 SHA-1: ec50ce2e0112526e56f72b1e6ea940f3f74125d6 SHA-256: b9777c2aae17b5202bdb9866a5efa6c5dac0c133d36de545590b62d1b09d594c
96 Risk Score

Malware Insights

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

This PDF document was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing or trojan. It contains numerous embedded URLs, with the primary one being https://botokaw.ru/wix?keyword=canyon+guide+outfitters+hooded+jacket, which likely leads to a phishing or malware download site. The document's structure and the presence of these URLs suggest an attempt to trick the user into visiting a malicious external resource, likely as part of a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://botokaw.ru/wix?keyword=canyon+guide+outfitters+hooded+jacket
    • http://remont-pc.website/pencil_drawing_for_beginners_step_by_step_video4o1gc.pdf
    • https://juladugalevatib.weebly.com/uploads/1/3/4/3/134385664/mijotowipesededejas.pdf
    • http://seplafond.xyz/this_is_amazing_grace_chords_gbcaio.pdf
    • https://pozuxopukemo.weebly.com/uploads/1/3/4/7/134705319/zazizuxisukenilefib.pdf
    • http://vewazovowev.iblogger.org/23669365643.pdf
    • http://evilcheats.fun/samsung_rf323tedbsr_aa_manuall0iyk.pdf
    • https://cdn.sqhk.co/gebunemif/ihjEja7/keneliwepakuxedudutone.pdf
    • https://cdn.sqhk.co/zefipuvuwifi/jeslgc9/66939206593.pdf
    • https://cdn.sqhk.co/lojosexotak/hRuyX5e/reconfigured_definition_computer.pdf
    • https://static.s123-cdn-static.com/uploads/4479691/normal_5fe09cb37993f.pdf
    • https://cdn.sqhk.co/jogepirar/ja7hiwJ/guitar_recording_sounds_muddy.pdf
    • https://jazelisis.weebly.com/uploads/1/3/4/8/134870131/82c7eb9246.pdf
    • https://zevigetadafuwun.weebly.com/uploads/1/3/0/9/130969942/1caa3f023.pdf
    • http://saxefitipar.iblogger.org/wewore.pdf
    • https://cdn-cms.f-static.net/uploads/4495413/normal_600aef7279e93.pdf
    • https://cdn.sqhk.co/fuluzagile/jbhhjjg/12672177709.pdf
    • https://vigodabazo.weebly.com/uploads/1/3/4/8/134872933/4628651.pdf
    • http://remont-kvartir-otzyvy.moscow/diy_crib_sheet_no_sewo6a34.pdf
    • https://static.s123-cdn-static.com/uploads/4367927/normal_60043bda287f7.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/8b1617c1-e6af-4e94-bf85-f6f7b3053f12/is_the_undoing_on_hbo_max_or_hbo.pdf
    • http://batogejupimole.rf.gd/ncbi_blast_manual.pdf
    • https://uploads.strikinglycdn.com/files/208c3cb1-c1a7-43e6-bd13-151fc325f9b3/software_project_management_online.pdf
    • https://uploads.strikinglycdn.com/files/7a93275b-06d2-48b6-8738-6a105be9d929/15732086461.pdf
    • http://gunawojigiz.epizy.com/dream_interpretation_snakes.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e937.bin
00062d429de5c707bf708e288855fe2d335bb04305b02718efba22424a44e0e4
pdf-font-stream PDF embedded font (sfnt) at offset 0xE937 5400 bytes
font_01_sfnt_off0000fba5.bin
842102a3aa6021432753251d0a30261475bf7ea35a08afe67b2f66d04b81fd98
pdf-font-stream PDF embedded font (sfnt) at offset 0xFBA5 11232 bytes