Malicious PDF — malware analysis report

Static analysis result for SHA-256 acfe269d5236b03c…

MALICIOUS

PDF

86.7 KB Created: 2021-03-11 20:57:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6bb9e034e745ac79baeae69d43fce02b SHA-1: 2f9b96d1bd457516c187f261f3cdd2386149d7e1 SHA-256: acfe269d5236b03c23ba06c123f4ca18eae20912dc057749e59854edb6b3a021
236 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating it is part of an SEO link farm and a phishing lure, directing users to a URL that promises a "wsop hack tool v7.5 free download". The presence of numerous external links and the ML classifier flagging it as malicious strongly suggest a malicious intent. The document body, though heavily obfuscated, contains keywords related to the lure. The primary IOC is the redirector URL used to deliver the payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9983

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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/wix?keyword=wsop+hack+tool+v7.5+free+download PDF link annotation
    • https://s3.amazonaws.com/furunumaroxun/rheem_tankless_water_heater_installation_kit.pdfIn PDF document text
    • https://s3.amazonaws.com/gekixadonuru/xugodizodon.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470828/normal_602e079b277ae.pdfIn PDF document text
    • https://vexibalob.weebly.com/uploads/1/3/4/8/134896466/5208053.pdfIn PDF document text
    • https://fimopoki.weebly.com/uploads/1/3/4/0/134040487/1539691.pdfIn PDF document text
    • https://s3.amazonaws.com/rutufokedizon/segikonibetivizufubixeda.pdfIn PDF document text
    • http://kovuzaxaf.medianewsonline.com/wawimiledazomikigitu.pdfIn PDF document text
    • https://s3.amazonaws.com/jebokizez/wimip.pdfIn PDF document text
    • https://depumubawaminuk.weebly.com/uploads/1/3/4/2/134236244/zowifaroguz_leriwogujogik_tawedokevodi_sekawulurur.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443812/normal_6046ae3e0e7a9.pdfIn PDF document text
    • http://sijuvibitita.iblogger.org/blank_ingoing_condition_report.pdfIn PDF document text
    • https://s3.amazonaws.com/daraniwekamidir/juzenowura.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456399/normal_601cb8c52cbd4.pdfIn PDF document text
    • https://nefafege.weebly.com/uploads/1/3/4/6/134642137/muwurafemijuva_dizuxiroreditow.pdfIn PDF document text
    • https://jinobodusere.weebly.com/uploads/1/3/4/7/134722577/wokerewuzesaligonu.pdfIn PDF document text
    • http://majovevalaji.sportsontheweb.net/24212431205.pdfIn PDF document text
    • https://s3.amazonaws.com/poguvelefa/wapking._com_new_song_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/suximawo/69159599252.pdfIn PDF document text
    • http://kepuxom.mypressonline.com/35601426178.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wadoromutisagar.myartsonline.com/jbl_flip_3_firmware_update_mac.pdfIn PDF document text
    • http://zalatikewal.atwebpages.com/sutomunozivonopuruve.pdfIn PDF document text
    • http://vorasatijede.rf.gd/dewalt_miter_saw_stand_replacement_parts.pdfIn PDF document text
    • http://bisegigosos.epizy.com/falosipawaxexanuzuviv.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eab0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAB0 5708 bytes
SHA-256: 54a2e178fc34f8c8186e6be9c0fb65c3dc7b276714d779d2ac53055f73a643f8
font_01_sfnt_off0000fe42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE42 2092 bytes
SHA-256: 13678a14b930e6d42e11b2ac41b13981c2c7f5938cc30cfb194ad51886f1f1dd
font_02_sfnt_off000107e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x107E7 15648 bytes
SHA-256: 077f7c35291f9544474666e332c2614f18522248a9a4b9be72a8b956e897e31d
font_03_sfnt_off00013705.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13705 16160 bytes
SHA-256: 53c3ec829963ec5a0af1bff4be2d724acb9959b277e5253d769434e6be684fe1