Malicious PDF — malware analysis report

Static analysis result for SHA-256 8dd68171fa785304…

MALICIOUS

PDF

65.2 KB Created: 2021-03-19 04:03:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d365a225ddcc41dc70d8da0ee781ff7e SHA-1: 2a0f4d4f2d8960024c2114267b0c7c396cf63ca9 SHA-256: 8dd68171fa785304b62c88d1c40b40ebe30d1cee0b3ed2d486b9a9f76b374c8a
154 Risk Score

Malware Insights

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

This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning model indicated a high probability of maliciousness. It contains a large number of external links, suggesting a link farm or redirection scheme. The document body, though partially corrupted, contains keywords related to financial analysis, likely serving as a lure to disguise the malicious intent of redirecting users to potentially harmful URLs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8555

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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
  • 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://nipisod.ru/award?keyword=break+even+analysis+in+management+accounting+pdf
    • https://cdn.sqhk.co/gagobuniponi/fgj6gcp/mlb_playoff_standings_if_the_season_ended_today.pdf
    • http://idealicait.website/bupukumurulomazowaky9e82.pdf
    • https://cdn.sqhk.co/dugixikisim/hp2uxRe/lasefemasunirunatojitu.pdf
    • https://lojigimab.weebly.com/uploads/1/3/0/8/130814508/jodutaruvobo-tidinutokaf-pokegususos.pdf
    • http://esmoney.site/dalipovoxinelatiberepadooypge.pdf
    • https://cdn.sqhk.co/lunabati/dhcOjdb/xozutibo.pdf
    • https://juxilejaguzu.weebly.com/uploads/1/3/4/4/134404551/putepuzepuvujevop.pdf
    • https://maselevajaf.weebly.com/uploads/1/3/1/3/131398143/6378995.pdf
    • https://cdn.sqhk.co/lazuxorus/cidhc0u/31931851219.pdf
    • https://cdn.sqhk.co/nujudemugipi/fhjjhhf/bearded_butchers_store.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/numegubowalonan/zamenatarok.pdf
    • https://uploads.strikinglycdn.com/files/e9015a59-38bc-4d54-816f-148c172203a1/whats_the_true_story_behind_the_blind_side.pdf
    • https://uploads.strikinglycdn.com/files/9d8ec8f7-c824-4d56-979e-9bfb91cb6ebc/dazujalafulupuzunoluvakub.pdf
    • https://s3.amazonaws.com/fejakixoweka/how_to_study_in_college_walter_pauk_11th_edition.pdf
    • https://s3.amazonaws.com/vexosafugunu/kagefujarodami.pdf
    • https://s3.amazonaws.com/gozilum/litedifitezexus.pdf
    • https://s3.amazonaws.com/xukonakefules/2017_chevy_trax_repair_manual.pdf
    • https://s3.amazonaws.com/wukara/video_er_professional_for_edge.pdf
    • https://s3.amazonaws.com/dogazisuze/bicultural_identity_formation.pdf
    • https://s3.amazonaws.com/joterige/why_is_my_hp_photosmart_7525_not_printing_black.pdf
    • https://s3.amazonaws.com/zafirawit/33112395984.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f569.bin
c4b3816c24c3a97d6109a4c726e20d403a2f5b434b3ba0fc5fdc15d1a902f8f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF569 5748 bytes

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