Malicious PDF — malware analysis report

Static analysis result for SHA-256 e71bfef6829d4195…

MALICIOUS

PDF

86.0 KB Created: 2021-02-18 13:46:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: f1b5bfeeb3fee895fb823cabc3ef1011 SHA-1: 98a297751f70236d813f10001e9ec6d2084028e4 SHA-256: e71bfef6829d41959569c225a213a7710821e20133b7470edc713a92d1a76f0f
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/aws?utm_term=gear+circle+headphones+pairing+iphone PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4416153/normal_60164bfd681da.pdfIn PDF document text
    • https://cdn.sqhk.co/tavikalamo/dha33ha/mafia_city_h5_bot.pdfIn PDF document text
    • https://cdn.sqhk.co/kupibetefuko/EheEIhj/best_cowboy_hats_brands.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388289/normal_6025ba3a94586.pdfIn PDF document text
    • https://cdn.sqhk.co/sisadenev/33hejdJ/66160873986.pdfIn PDF document text
    • https://cdn.sqhk.co/loxexafetivu/mhcPDMr/download_real_football_2012_play_store.pdfIn PDF document text
    • https://cdn.sqhk.co/tefulobesa/EhfGvhg/100_mandala_coloring_pages_for_kindergarten.pdfIn PDF document text
    • https://cdn.sqhk.co/gufemazibafi/ZigjbV7/fishdom_game_free.pdfIn PDF document text
    • https://cdn.sqhk.co/nepusoliweda/cK75gf2/veledikojazokug.pdfIn PDF document text
    • http://nasodojazawito.iblogger.org/96206747239.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454562/normal_5fdbb81aad50c.pdfIn PDF document text
    • https://cdn.sqhk.co/ruwiketi/hMtpdih/phoenix_old_school_arcades.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sosisime.rf.gd/28050094059.pdfIn PDF document text
    • http://rojapaj.epizy.com/harpic_toilet_cleaner_msds_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/juvosi/gusabud.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_off00011248.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11248 5364 bytes
SHA-256: da4bd8eeb2098a07b56c6bf144a164a89d62f1e37ab8f5aa3d837d296f1b2df1
font_01_sfnt_off0001247c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1247C 11340 bytes
SHA-256: 4425e3841f43d4c272721adbeb9b8ea272930d8889c335e99a0b7d4836759d60