Malicious PDF — malware analysis report

Static analysis result for SHA-256 60f5feca5fda4d53…

MALICIOUS

PDF

71.9 KB Created: 2021-04-08 01:57:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1f52d7ce64b482f1772f4f44e2e21324 SHA-1: 202db5b0a5722d8a258a01c21880ea2273fd26e8 SHA-256: 60f5feca5fda4d53172a910493026d787be8df8321778c7192e8c48a59277810
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain, likely used for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to trick the user into visiting a malicious site, consistent with spearphishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://seumenha.ru/strik?utm_term=kenmore+progressive+true+hepa+vacuum+model+116
    • https://cdn-cms.f-static.net/uploads/4392651/normal_60161a2e266f1.pdf
    • https://cdn.sqhk.co/tesuvifiv/bjcgjkQ/352242014.pdf
    • https://static.s123-cdn-static.com/uploads/4418778/normal_5ff4374a08394.pdf
    • https://cdn.sqhk.co/bepeguvovori/gihHRFk/xamosedula.pdf
    • https://cdn-cms.f-static.net/uploads/4369174/normal_603c8a226e350.pdf
    • http://naliputa.mywebcommunity.org/algebra_word_problems.pdf
    • https://cdn.sqhk.co/vimerokil/ijXwqha/wivugiwuv.pdf
    • https://cdn-cms.f-static.net/uploads/4374518/normal_6062b08fb2705.pdf
    • https://static.s123-cdn-static.com/uploads/4386607/normal_5ff02a4c42ceb.pdf
    • https://cdn-cms.f-static.net/uploads/4489251/normal_600d0ae42a7fe.pdf
    • https://cdn.sqhk.co/posebozej/jgihems/call_of_duty_warzone_tournament_rules.pdf
    • https://cdn-cms.f-static.net/uploads/4449992/normal_6052af9401ede.pdf
    • http://xakubilowiva.22web.org/dnd_5e_grapple_guide.pdf
    • https://cdn.sqhk.co/vibisimak/jOjmjaj/soccer_backflip_penalty_kick_goal.pdf
    • http://rimujitibux.mypressonline.com/kinds_of_adjectives_worksheets_for_grade_6_with_answers.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/4980cc03-c3bd-4fe2-a9b7-27799e5a19ca/how_to_open_the_top_of_a_maytag_bravos_mct_dryer.pdf
    • https://uploads.strikinglycdn.com/files/5fb6291c-97d4-4d8c-9919-ec8ddb273f92/janome_hello_kitty_sewing_machine.pdf
    • https://uploads.strikinglycdn.com/files/53d0593e-9bbf-4b71-8f9f-7ab020c65d0c/woxakobubuzenis.pdf
    • http://desejole.myartsonline.com/sutuzutawojiw.pdf
    • http://pazefinexudet.rf.gd/mekoxosonixedagupitego.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cbdf.bin
beba5c9cc4b73e6878f397d9deb964703c772eb43bed02dcea000df226cbfc5a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCBDF 5604 bytes
font_01_sfnt_off0000decd.bin
06b310ccf2f437dade1f7cb6815d8f756c86645cc5e371415bd55b7eaed8a632		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDECD 10772 bytes
font_02_sfnt_off000103cc.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x103CC 4324 bytes

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