Malicious PDF — malware analysis report

Static analysis result for SHA-256 04cb490b4e385c82…

MALICIOUS

PDF

66.8 KB Created: 2021-03-04 01:25:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 734d48264d074d91e80e86151530f966 SHA-1: fc73ce011f9476aa3204779c6e98db828b529bcf SHA-256: 04cb490b4e385c821dbad21236438ed03e7962350b0f22f8797c513c8743be9b
146 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://mezovuduw.ru/strik?utm_term=kitchen+aid+stand+mixer+5+qt PDF link annotation
    • https://cdn.sqhk.co/temududote/jdiboih/32084523849.pdfIn PDF document text
    • https://cdn.sqhk.co/xekutenupi/GwjbibO/gravity_rider_zero_game_hack_download.pdfIn PDF document text
    • http://tigatixe.iblogger.org/gibaguwiteterabasisitedon.pdfIn PDF document text
    • https://sodikisug.weebly.com/uploads/1/3/1/4/131437766/kuviruf-rinixip-nofufe.pdfIn PDF document text
    • https://cdn.sqhk.co/susojareb/gDgMLgW/sceptre_32_inch_tv_with_dvd_player.pdfIn PDF document text
    • http://canlisohbetim.net/delta_cruzer_miter_saw_manualbbaak.pdfIn PDF document text
    • https://xevibobi.weebly.com/uploads/1/3/4/6/134683071/8366341.pdfIn PDF document text
    • http://instapresent.site/how_were_womens_roles_changing_in_the_1920s6zgv1.pdfIn PDF document text
    • https://cdn.sqhk.co/midipijikami/cTQcz8s/669548238.pdfIn PDF document text
    • http://tameenegypt.com/western_australian_aboriginal_clansq7xam.pdfIn PDF document text
    • https://xabonawof.weebly.com/uploads/1/3/5/9/135965837/zaxopalu.pdfIn PDF document text
    • https://cdn.sqhk.co/viwedanej/jciaWha/pixel_dinosaur_t_shirt_boy.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/sajatesawodiji/boom_beach_apk_uptodown.pdfIn PDF document text
    • https://s3.amazonaws.com/pugomonapoxuxe/todivafufavejoxijawir.pdfIn PDF document text
    • https://s3.amazonaws.com/bakoloj/74601682875.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_off0000c731.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC731 5436 bytes
SHA-256: 030d123c86eeb56efb3cedbf86b77da5df400cfa74b5f9e7b769666242d0c87f
font_01_sfnt_off0000d98c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD98C 10628 bytes
SHA-256: ceca48e5f5a436208410b5c2a22568d354bbfc99fc4fdb6028ab04fe3b439ef3