Malicious PDF — malware analysis report

Static analysis result for SHA-256 77eb19c7091f44c9…

MALICIOUS

PDF

55.7 KB Created: 2021-03-17 19:47:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 4190aea5006a7c65e5578e8893ce52a5 SHA-1: 56cef89dda8ef9f20c9d72a2cc2d9a99ab5f29d3 SHA-256: 77eb19c7091f44c9ac205683acdd24e452833175c994f6bb44224c5229d3c082
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6222

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://ponafet.ru/award?keyword=auditoria+forense+en+colombia+pdf PDF link annotation
    • http://swiss-gear.store/mekaxelutomujitgk72.pdfIn PDF document text
    • https://cdn.sqhk.co/bokirebi/dheifih/timiladof.pdfIn PDF document text
    • http://fortuneo.biz/0_36_months_developmental_milestones0w27q.pdfIn PDF document text
    • http://takefeduw.iblogger.org/ms_word_for_macbook_air_free.pdfIn PDF document text
    • http://tujodugugejime.22web.org/tekatalekojalulojifejo.pdfIn PDF document text
    • http://cocobuka3.xyz/67168100414pxmbg.pdfIn PDF document text
    • https://cdn.sqhk.co/zulatobi/hgvjfzR/72684079963.pdfIn PDF document text
    • http://theandyhong.com/romafolqlxtf.pdfIn PDF document text
    • http://hushseo.online/fizizozexalur68gbr.pdfIn PDF document text
    • http://totalcreditcheck.info/multiplication_tables_from_1_to_30_free_download03sya.pdfIn PDF document text
    • http://lordtrans.ru/how_to_build_a_4_way_splitter_wedgepk5vy.pdfIn PDF document text
    • https://cdn.sqhk.co/kabevapixox/dgfjijd/crazy_ball_3d_facebook_download.pdfIn PDF document text
    • https://cdn.sqhk.co/pesuxitum/ijijyjj/subway_surfers_characters_dates_2020.pdfIn PDF document text
    • https://cdn.sqhk.co/kibutonap/eOjgYhh/music_quiz_guess_pop_song_90s.pdfIn PDF document text
    • http://baxazujokeranu.epizy.com/16387027188.pdfIn PDF document text
    • https://6205d428-d5dc-494e-bbc3-e2236f9d811e.filesusr.com/ugd/6885a6_52b56bd1dd604168aeb35b4c158cf95c.pdf?index=trueIn PDF document text
    • https://16fd3b15-5541-4454-9538-28daacbf497e.filesusr.com/ugd/e32576_402b46b2b7be41b4a5cee77d76273b9c.pdf?index=trueIn PDF document text
    • http://defixudopa.rf.gd/79433682252.pdfIn PDF document text
    • https://9d349da1-218b-4b59-9e37-2a90cab56d40.filesusr.com/ugd/de9003_b0046b78f51f4a4a9d7d37565359646f.pdf?index=trueIn PDF document text
    • http://kudogal.rf.gd/5464814649.pdfIn PDF document text
    • https://71b4061d-0fbe-47a8-a671-08758978b022.filesusr.com/ugd/0216f2_56f7556204194efc91e1bac3de8134cf.pdf?index=trueIn PDF document text
    • https://4f7f339c-9ee9-4921-a7ad-794169edd555.filesusr.com/ugd/fea72b_27f19b6c17d64c52a2e08dc567fe3872.pdf?index=trueIn PDF document text