Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8efe46cd6b78615…

MALICIOUS

PDF

75.2 KB Created: 2021-03-22 17:11:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ef01ac3396c53006cb4d63133e22ae7d SHA-1: bae0990227b3a7e0dcf4c75988e374cd27a21da5 SHA-256: e8efe46cd6b78615b6ccde4842c9d7039b9912905fe82cf690f44cebadaf1181
96 Risk Score

Malware Insights

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

The file is a PDF document flagged by ML classifiers and ClamAV as malicious. It contains an embedded URL, 'https://golowaki.ru/wix?keyword=skull+and+shackles+miniatures', which is likely used for phishing or to download a secondary payload. The document's structure and metadata also indicate suspicious activity, consistent with a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://golowaki.ru/wix?keyword=skull+and+shackles+miniatures
    • https://static.s123-cdn-static.com/uploads/4419413/normal_5ffd891b46990.pdf
    • https://static.s123-cdn-static.com/uploads/4418583/normal_5ffe891e7f82f.pdf
    • https://cdn-cms.f-static.net/uploads/4455375/normal_5fe84c60eae85.pdf
    • http://norudumof.22web.org/apollo_11_space_mission_information.pdf
    • https://cdn-cms.f-static.net/uploads/4482002/normal_601d92bfc73f6.pdf
    • https://static.s123-cdn-static.com/uploads/4419818/normal_5ffa15037c6cf.pdf
    • https://cdn-cms.f-static.net/uploads/4500669/normal_6019f9073768d.pdf
    • https://cdn-cms.f-static.net/uploads/4384819/normal_601207cc56aba.pdf
    • https://cdn-cms.f-static.net/uploads/4476152/normal_600ae3e292f1e.pdf
    • https://cdn-cms.f-static.net/uploads/4410016/normal_6011a700a6496.pdf
    • http://towajemikof.iblogger.org/24842417686.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://wabalegawamiraj.rf.gd/how_do_i_make_trivia_fun.pdf
    • https://s3.amazonaws.com/jikopot/31292325454.pdf
    • https://s3.amazonaws.com/nelizenejakarug/loctite_si_5920_datasheet.pdf
    • https://s3.amazonaws.com/dewutexorob/74950044072.pdf
    • https://uploads.strikinglycdn.com/files/62568d42-b91b-49cb-b4fc-4513585659c7/how_to_treat_a_stye_on_inner_eyelid.pdf
    • https://uploads.strikinglycdn.com/files/c4615fab-19ae-4b89-8ae2-7cd74c67d49b/what_happens_if_you_cant_pay_a_judgment.pdf
    • https://uploads.strikinglycdn.com/files/b8950e82-caab-400b-b741-37fb67951e60/pomapivukin.pdf
    • https://uploads.strikinglycdn.com/files/fa9b543c-ca07-44d4-bc25-683cbcc22aa5/lalis.pdf
    • https://uploads.strikinglycdn.com/files/083a0f94-2f82-4168-a8d5-7cc02d255441/14382762861.pdf
    • http://jegagasare.rf.gd/.pdf
    • https://uploads.strikinglycdn.com/files/28687326-3daf-4875-9c0c-86779dc371a1/suzemunupuzovak.pdf
    • https://uploads.strikinglycdn.com/files/83d0dd61-c4a7-4f7f-8eb3-256dc897f1ae/does_bloodline_end_well.pdf
    • https://uploads.strikinglycdn.com/files/632ef206-5c7f-43cf-8166-d2794ae79b51/samsung_clp-325w_color_laser_printer.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_off0000e215.bin
0b95df295242bf9fecfa6aa5d73682307a5789d8a06be5b901345fad0fe8c5a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE215 5344 bytes
font_01_sfnt_off0000f41a.bin
7080ae1e52dd55daffc43399cec9f1815b99bdffcbcb21ce9067c0265310c9ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF41A 13392 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.