Malicious PDF — malware analysis report

Static analysis result for SHA-256 aec701352c48185c…

MALICIOUS

PDF

82.0 KB Created: 2021-03-30 16:48:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e11de4c6fce1601259cc493632f1417c SHA-1: ec49028a6b5de93862e359c48b06229e4ca0328f SHA-256: aec701352c48185c7e968e04f753c1c8fe7b961e36249e39df0387e6206cf52b
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing site. The document body, though heavily obfuscated, contains text related to the embedded URL, suggesting a lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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=what+was+life+like+in+1912+britain
    • http://jarewitof.mypressonline.com/brake_drum_forge.pdf
    • https://pukakiliratof.weebly.com/uploads/1/3/4/7/134768090/loludaxotu.pdf
    • https://foraketarikovef.weebly.com/uploads/1/3/4/6/134608655/larexipojirovigun.pdf
    • http://axecheat7.xyz/operations_management_salary_uk3m5mg.pdf
    • http://korecos.ru/ion_block_rocker_instruction_manualjo9rf.pdf
    • https://cdn.sqhk.co/bidelefo/xR42Wja/31629282905.pdf
    • https://luxufaxunixepu.weebly.com/uploads/1/3/4/5/134584211/6650207.pdf
    • https://zurukonovode.weebly.com/uploads/1/3/1/3/131379219/karixo.pdf
    • http://pitushok.space/45796604987qgmak.pdf
    • https://cdn.sqhk.co/fabozesemi/bjjgdhj/hack_game_grim_soul_dark_fantasy_survival_guide.pdf
    • https://wowevabesal.weebly.com/uploads/1/3/5/3/135322278/9474515.pdf
    • https://razixolinatu.weebly.com/uploads/1/3/4/3/134384461/9622430.pdf
    • https://sudopefizumizer.weebly.com/uploads/1/3/1/3/131383323/zesojuwijesonu-vebizetuj.pdf
    • https://cdn.sqhk.co/bujerinalo/jhhj8jg/skinstore_promo_code.pdf
    • https://cdn.sqhk.co/xobabowiwa/zjemRQi/nedowa.pdf
    • http://christmas-gift.ru/european_commission_interinstitutional_style_guidepdqqc.pdf
    • http://avto-document.site/146395260774rggu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/vuliwisuwig/reactions_of_amines_chemguide.pdf
    • https://s3.amazonaws.com/penefelomiju/guided_meditation_for_sleep_and_muscle_relaxation.pdf
    • https://s3.amazonaws.com/fatikonavori/hangaroo_answers_biggest_mountain_peaks.pdf
    • http://gizixaxeviduf.myartsonline.com/l_express_newspaper.pdf
    • https://s3.amazonaws.com/forupokisip/jibokavifiguvinuvepilefed.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_off00010136.bin
c89cf80efefc8c28e6e409c0e3d840b92e821b8465016836857f1db2a98f7cc0
pdf-font-stream PDF embedded font (sfnt) at offset 0x10136 5504 bytes
font_01_sfnt_off00011409.bin
59a6abce7540193d3378cca4fd2362ac7750a205830279144e8565c1fac06880
pdf-font-stream PDF embedded font (sfnt) at offset 0x11409 11516 bytes