Malicious PDF — malware analysis report

Static analysis result for SHA-256 f7a7ad6dabe55864…

MALICIOUS

PDF

76.8 KB Created: 2021-01-09 21:17:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 841f343469cc7ab57fa990ba522f07aa SHA-1: c9e99204b0460c5be66e14b0acb5bb02e0fe2f31 SHA-256: f7a7ad6dabe5586409e07653375f53f1179a567dfcaf4198b6843c72bc154008
96 Risk Score

Malware Insights

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

The file was detected as a malicious PDF by ClamAV and an ML classifier. It contains an embedded URL pointing to 'traffset.ru', which is likely used for phishing or malware distribution. No scripts were extracted, but the presence of the external URI suggests an attempt to redirect the user to a malicious site.

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://traffset.ru/123?utm_term=patrick+turner+md PDF link annotation
    • https://site-1176433.mozfiles.com/files/1176433/werewolf_promotion_discogs.pdfIn PDF document text
    • https://cdn.sqhk.co/jogepirar/idvbjbB/route_66_two_guns_ghost_town.pdfIn PDF document text
    • https://site-1172650.mozfiles.com/files/1172650/37429603110.pdfIn PDF document text
    • https://site-1214293.mozfiles.com/files/1214293/poxakoxed.pdfIn PDF document text
    • https://site-1213673.mozfiles.com/files/1213673/50713026054.pdfIn PDF document text
    • https://cdn.sqhk.co/kewudomavave/gDib2jb/undue_influence_meaning_in_urdu.pdfIn PDF document text
    • https://site-1168029.mozfiles.com/files/1168029/no_man_s_sky_xbox_review_2019.pdfIn PDF document text
    • https://site-1167992.mozfiles.com/files/1167992/situnava.pdfIn PDF document text
    • https://site-1185553.mozfiles.com/files/1185553/77553167859.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/38062737279.pdfIn PDF document text
    • https://s3.amazonaws.com/xuxifuzituwu/travelon_laundry_soap_sheets_instructions.pdfIn PDF document text
    • https://s3.amazonaws.com/geradi/65044350748.pdfIn PDF document text
    • https://s3.amazonaws.com/seriposuj/48034405229.pdfIn PDF document text
    • https://s3.amazonaws.com/gedimuta/audacity_apk_free_for_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/godewumazek/18692572933.pdfIn PDF document text
    • https://s3.amazonaws.com/suxiweke/buss_it_down_video.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_off0000f13d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF13D 4940 bytes
SHA-256: a10c43fec8e903e5b66a29e5a30b4121d2d6564cf3d44046e075d0e2ba78d47b
font_01_sfnt_off000101f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101F6 10648 bytes
SHA-256: 3a4e5eb2720e8b87f40abfcee1b31a3f6bf628825d32edc6083a6f5a5bac8505

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