Malicious PDF — malware analysis report

Static analysis result for SHA-256 29a114f239c3e9e6…

MALICIOUS

PDF

69.7 KB Created: 2021-01-26 10:07:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 34dd238c90ca9f75129c1c2e117f2306 SHA-1: 44bc7d0849c42025e127d12d3f45ca3b6e1787d3 SHA-256: 29a114f239c3e9e616c53c60f0ae3b09299600f9133c84e4ad432ce37c5f3bb5
206 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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 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.
  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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://jacksth.ru/123?utm_term=fedex+ground+human+resources+phone+number PDF link annotation
    • https://cdn.sqhk.co/sirepajaku/PvLjghf/cooking_fever_game_online_free_play.pdfIn PDF document text
    • https://digokevun.weebly.com/uploads/1/3/4/7/134747151/4f3220b2.pdfIn PDF document text
    • http://front-glass.space/football_prediction_sitegd1e9.pdfIn PDF document text
    • https://gepekipaw.weebly.com/uploads/1/3/5/3/135304147/jiridavotubukeledele.pdfIn PDF document text
    • https://cdn.sqhk.co/goberirud/dggtz46/zudofowalamojano.pdfIn PDF document text
    • https://cdn.sqhk.co/rurizibaxami/ibiivaV/car_part_finder_reg_number.pdfIn PDF document text
    • http://crispyset.online/56757921391irnpx.pdfIn PDF document text
    • https://cdn.sqhk.co/numanazolov/cihieO0/xumajubabiredexefe.pdfIn PDF document text
    • http://zirisumiwuxi.iblogger.org/lagu_on_my_way_dj_despacito.pdfIn PDF document text
    • http://epaytds.xyz/kojomozotasemewowm4iyk.pdfIn PDF document text
    • https://cdn.sqhk.co/jasamomedam/hi0o2hg/castle_crashers_remastered_xbox_one_cheats.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nulesuli.epizy.com/amma_amma_tamil_song_vip.pdfIn PDF document text
    • http://xuxixezatazifax.epizy.com/29005400650.pdfIn PDF document text
    • http://giduzorim.epizy.com/camera_raw_photoshop_cs4_mac.pdfIn PDF document text
    • http://vaxaxotopikite.epizy.com/french_accordion_music.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_off0000d3bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3BF 5616 bytes
SHA-256: 8ba5a78d9981d1d6765efd14b2d0f197ba302f6c0ef9367d6a70878170d8cc6a
font_01_sfnt_off0000e6ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6AC 10240 bytes
SHA-256: ca4e9581bfb035bbde6584a5e4a68807e23aee35e38e9a6e78edaf270f1d3fc1