Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f9e6ce7ff7c48ac…

MALICIOUS

PDF

75.8 KB Created: 2021-06-04 14:47:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 92c2858494d12eaa0703cd6a21dcf652 SHA-1: d689e21ae1dc1e78fbfce8fd9ca67263e48be5b5 SHA-256: 9f9e6ce7ff7c48ace80208eeebeb1d61c10710f7ee89a8e2f2233c38b3225c34
96 Risk Score

Malware Insights

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

This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL pointing to a suspicious domain, likely intended to redirect the user to a phishing site. The document body, though heavily obfuscated, suggests a lure related to a 'Google transparency report URL'. No scripts were extracted, but the presence of external URIs and the ML detection strongly indicate a phishing attempt.

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://drafthe.ru/pbw?utm_term=google+transparency+report+url PDF link annotation
    • https://gipavibipo.weebly.com/uploads/1/3/4/6/134654588/8611058.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370097/normal_5fce7d2251be5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380876/normal_5fcbcad013d2b.pdfIn PDF document text
    • https://torenamabaj.weebly.com/uploads/1/3/4/4/134486332/zusefutokusepamuxez.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380219/normal_5fedde6ead654.pdfIn PDF document text
    • https://gegiritofizupog.weebly.com/uploads/1/3/4/6/134644009/5254725.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366364/normal_60301a0046d6d.pdfIn PDF document text
    • https://defuboxuzunusam.weebly.com/uploads/1/3/3/9/133986960/judutusunakudasej.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501656/normal_60261a0ebd51a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413375/normal_5fe3e9e09e298.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484807/normal_601dbe8d17c56.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375891/normal_5fe76ec1257b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412763/normal_5fd91173d0922.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vakerul.pbworks.com/w/file/fetch/144513102/bokosaj.pdfIn PDF document text
    • http://pamotekegopa.pbworks.com/f/how_long_does_ogilvie_home_perm_last.pdfIn PDF document text
    • http://wepoline.pbworks.com/f/4741243285.pdfIn PDF document text
    • http://pinurakus.pbworks.com/f/blockman_go_cheats.pdfIn PDF document text
    • http://bofamawetodo.pbworks.com/w/file/fetch/144570354/how_do_i_cleanse_my_liver_at_home.pdfIn PDF document text
    • http://xoxafepapesu.pbworks.com/f/26409518914.pdfIn PDF document text
    • http://taxexuwej.pbworks.com/w/file/fetch/144453288/20340035115.pdfIn PDF document text
    • http://ruwomodanom.pbworks.com/f/59218369542.pdfIn PDF document text
    • http://fepazonavu.pbworks.com/f/lojabadotedimawirile.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_off0000ec41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC41 5236 bytes
SHA-256: 2f40c10e453746401f18bda1f91b5ed49793c3b6f0a6c6622c8d6541a5ccb4ea
font_01_sfnt_off0000fe2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE2E 10560 bytes
SHA-256: 2766e5fd77afb608d85a61726773f72d48e8ba95d2ca354fb3b96820946ca74b

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