Malicious PDF — malware analysis report

Static analysis result for SHA-256 69a48e78dbd08dd8…

MALICIOUS

PDF

72.0 KB Created: 2021-02-25 12:38:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 3ba5c5fa8ea3359964db59288dab41f7 SHA-1: 43c6e6a4d0f5acb115a30621cdcb68358a13b824 SHA-256: 69a48e78dbd08dd83fd33417b12be2776253184ae2cf5500c8f6eb59f3014fe3
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 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.
  • 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://druttle.ru/wix?keyword=8+gauge+shotgun+halo PDF link annotation
    • https://cdn.sqhk.co/rufebumu/vi9Tie9/94734349410.pdfIn PDF document text
    • https://cdn.sqhk.co/zanudiwageg/bgj5Fie/elements_of_design_color_examples.pdfIn PDF document text
    • https://cdn.sqhk.co/kimejijomaki/jad61if/this_war_of_mine_apk_mod_menu.pdfIn PDF document text
    • https://cdn.sqhk.co/murefazomejo/juKhiY9/ziwusiwepumivevi.pdfIn PDF document text
    • https://cdn.sqhk.co/sadinuko/iJoO2wY/71422309478.pdfIn PDF document text
    • https://jekufagiz.weebly.com/uploads/1/3/0/7/130739150/berorosapisesuv.pdfIn PDF document text
    • https://cdn.sqhk.co/mulepava/Rjcjjtp/kopolar.pdfIn PDF document text
    • https://cdn.sqhk.co/gebemiwisero/ujeWjgx/sowuxezerexod.pdfIn PDF document text
    • https://cdn.sqhk.co/fenajobuwer/9jfVRjj/cube_surfer_game_review.pdfIn PDF document text
    • https://lisesadavageg.weebly.com/uploads/1/3/1/4/131438313/687fba0.pdfIn PDF document text
    • https://tizezesi.weebly.com/uploads/1/3/4/0/134041120/juxejalevutede.pdfIn PDF document text
    • http://fofesivolu.iblogger.org/functional_specification_template_confluence.pdfIn PDF document text
    • https://dowozazufexu.weebly.com/uploads/1/3/4/6/134606261/gexowudinofip_dakabidukofuroz_zulofisila_fawiw.pdfIn PDF document text
    • https://cdn.sqhk.co/xivomojuf/N77vfij/fikipidakopex.pdfIn PDF document text
    • https://mugifafuvutasij.weebly.com/uploads/1/3/4/1/134108805/4016868.pdfIn PDF document text
    • https://cdn.sqhk.co/bidufewo/fShghg1/kazibijugopolidalepigu.pdfIn PDF document text
    • https://nuvomananakoleg.weebly.com/uploads/1/3/1/4/131453817/60582.pdfIn PDF document text
    • https://cdn.sqhk.co/sawitofi/k2gfoie/60549260463.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e071.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE071 4948 bytes
SHA-256: f40787858c59bb4f32b54b2bf5d24079a963e87a36fa28a73ebbf8ee5ed7cc31
font_01_sfnt_off0000f143.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF143 9972 bytes
SHA-256: b1ba04ae302ae45d0e5f54ea9661396039807de334c20c1b133b4e8194f5fac3