Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6ab2207c8c68d38…

MALICIOUS

PDF

75.1 KB Created: 2021-01-27 16:43:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: ba77134639db3df737149ca89d93bb4d SHA-1: 53e3681216218850fa79eff4730c91379635f5d2 SHA-256: f6ab2207c8c68d382de6e0b36cc3f5591733cc5ed6a7acd7803a82de7907b0db
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain, likely intended to host a phishing page or download further malware. Although no scripts were directly extracted, the PDF structure and heuristic firings suggest it's designed to exploit users through social engineering, likely as a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/123?utm_term=definition+ap+human+geography PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4467979/normal_5fdbb7f84883f.pdfIn PDF document text
    • https://cdn.sqhk.co/teketerep/mvLpTig/eatme._io_mod_apk_3._8._5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4365563/normal_5fc794f416576.pdfIn PDF document text
    • https://cdn.sqhk.co/rajexizeba/W5VHR2H/50104112408.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446651/normal_5fdb061b48601.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367667/normal_5fd8e3cf6ed8d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456676/normal_5fe1460ed2770.pdfIn PDF document text
    • https://cdn.sqhk.co/rifokinimito/Ogfgjib/pokemon_quest_game_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413697/normal_6002ee886acff.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366339/normal_60086e40d9dfd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4377101/normal_60086cbd7f90e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jinujatafariva.rf.gd/bapomoxuj.pdfIn PDF document text
    • https://s3.amazonaws.com/xidazeze/jixuvutaxifemor.pdfIn PDF document text
    • https://s3.amazonaws.com/nuruvapozixix/ipad_2_latest_ios.pdfIn PDF document text
    • http://jufofokisib.epizy.com/caecilia_lt_std_font_family_free.pdfIn PDF document text
    • http://zolivowubek.epizy.com/xuwebapikux.pdfIn PDF document text
    • https://s3.amazonaws.com/rotowan/dte_corporate_citizenship_report.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_off0000e9c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9C6 5208 bytes
SHA-256: 7ce91cbd3a64fae760b43716ecb0b96ec993104da54bbfd715da3c5a8c60fbeb
font_01_sfnt_off0000fb66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB66 10492 bytes
SHA-256: ff159d29805d99f2b902f9286acfa71c253b43d55069d8be8dd217cdc14f65a3

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