Malicious PDF — malware analysis report

Static analysis result for SHA-256 aaf6e631c65cc8df…

MALICIOUS

PDF

69.2 KB Created: 2021-03-28 23:38:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: d613914f58494ba5bb6bf1170975939d SHA-1: 588d15703f462d5eee5fbf0aa88b7591adb2fcca SHA-256: aaf6e631c65cc8dfdaa9a9a297c8c9871316db2470cb528d2c8c9a599dcdf13a
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://midufefew.ru/aws?utm_term=craftsman+garage+door+opener+troubleshooting+guide PDF link annotation
    • http://worldhold.online/lavatofevujefovegivejw8lhz.pdfIn PDF document text
    • http://boxijogirexu.medianewsonline.com/keurig_k75_coffee_maker_manual.pdfIn PDF document text
    • https://rabofabi.weebly.com/uploads/1/3/0/8/130813834/6a04f589a.pdfIn PDF document text
    • http://fomigiv.mypressonline.com/68188433666.pdfIn PDF document text
    • https://cdn.sqhk.co/fixakozumad/Nifyjcm/mo_astray_review.pdfIn PDF document text
    • https://cdn.sqhk.co/zapiferufefu/ahdjfjg/formal_dresses_near_me_now.pdfIn PDF document text
    • https://cdn.sqhk.co/nokulebepoba/N0Ojejb/63522867931.pdfIn PDF document text
    • https://xajixaze.weebly.com/uploads/1/3/2/3/132302973/lilatizo-tibowatonu.pdfIn PDF document text
    • https://cdn.sqhk.co/lowanivari/OgdDONB/foxifiwivegonow.pdfIn PDF document text
    • http://uscreditreport2021.info/symbol_scanner_ls2208_qr_codepvau6.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/tapelu/bharaate_movie_songs_free.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibebulosaxug/director_resignation_letter_template.pdfIn PDF document text
    • http://dijakobikegexi.epizy.com/tch_phonics_worksheets_free.pdfIn PDF document text
    • http://bajefeluxit.rf.gd/29133090582.pdfIn PDF document text
    • https://s3.amazonaws.com/mipizaju/kanusuxu.pdfIn PDF document text
    • http://jetetejev.rf.gd/608465526.pdfIn PDF document text
    • http://webidiwotew.epizy.com/dr_ampoule_dual_black_mask_sheet_review.pdfIn PDF document text
    • http://beturatigamoli.epizy.com/xilezum.pdfIn PDF document text
    • https://s3.amazonaws.com/vukumesoj/6745126944.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_off0000d35c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD35C 5500 bytes
SHA-256: a89ef4231a37407735736cebebce60462b5084fb99219034f5108d510246e28a
font_01_sfnt_off0000e5d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5D9 9668 bytes
SHA-256: 8b88b66fd7dbbe137d1b8eebe2f5346b5d58df02b13233250a4c5d1e96736a74

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