Malicious PDF — malware analysis report

Static analysis result for SHA-256 7338266e55c6b1d4…

MALICIOUS

PDF

72.6 KB Created: 2021-03-08 21:45:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: b8addb0e2389f6e498ad1eba1719ac0f SHA-1: a54624bb223bb3acd98d85445674bff21d471b08 SHA-256: 7338266e55c6b1d4b5f4ef373290ef3302cba2504c85a3d7934f8d0a879f5839
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • 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
  • 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/award?keyword=data+acquisition+system+book+pdf PDF link annotation
    • https://pokotozumunas.weebly.com/uploads/1/3/1/4/131453498/310179ea5fe.pdfIn PDF document text
    • http://cryogen.me/zewakegunibm5akt.pdfIn PDF document text
    • http://labifovejes.mypressonline.com/social_behavior_mapping_activities.pdfIn PDF document text
    • https://tababara.weebly.com/uploads/1/3/0/7/130739165/ec6d44c308.pdfIn PDF document text
    • https://tesajezu.weebly.com/uploads/1/3/1/4/131452821/0f7c22a25e9.pdfIn PDF document text
    • https://zukudanasoxe.weebly.com/uploads/1/3/2/8/132815154/5648181a021c813.pdfIn PDF document text
    • http://xamojopilupivo.scienceontheweb.net/xorejam.pdfIn PDF document text
    • http://paselon.getenjoyment.net/texas_food_safety_manager_certification_test_answers.pdfIn PDF document text
    • http://leqqurint.online/nikon_fg-20_valuefa93o.pdfIn PDF document text
    • https://todumubisopid.weebly.com/uploads/1/3/5/3/135312552/kubuvig.pdfIn PDF document text
    • http://poposiruta.mywebcommunity.org/how_to_install_atem_mini_pro_software_control.pdfIn PDF document text
    • http://steelsho3.club/dermal_sheet_mask_reviewmz24r.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fuluxewamotate.atwebpages.com/wuguledo.pdfIn PDF document text
    • http://xowobovu.myartsonline.com/21697990839.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ec8638e4-017b-4dc8-aa4a-456b3683ffc1/thule_gateway_bike_rack_fit_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8d2de36e-c014-468b-8399-90afeb951f64/xekutuxitagabu.pdfIn PDF document text
    • https://s3.amazonaws.com/bupaxomu/34109428030.pdfIn PDF document text
    • https://s3.amazonaws.com/remeranexe/robotech_expeditionary_force_marines.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/062de550-b262-4786-b824-35e5e52ed623/big_little_lies_writer_daily_themed_crossword.pdfIn PDF document text
    • https://s3.amazonaws.com/wipotegadodorek/relative_clauses_exercises_with_answers.pdfIn PDF document text
    • http://vigexosav.myartsonline.com/38982960307.pdfIn PDF document text
    • https://s3.amazonaws.com/rodigapigeta/vipinibosevepadedagetozip.pdfIn PDF document text
    • https://s3.amazonaws.com/gazivemon/669798273.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/90135b58-dfe0-491e-8231-4c828afff928/wukipumimisiwanawegotixal.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_off0000df08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF08 5604 bytes
SHA-256: 5e791ab447b63cff1ec94aea0301136f43be608de28227853d93260d9a934373
font_01_sfnt_off0000f212.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF212 10044 bytes
SHA-256: 1a7680b4c9ebedc46fa17d951e7cc409e8e1963cd2c171ac0d8e8fd4f94fb78a

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