Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fc1e970c06b2545…

MALICIOUS

PDF

69.0 KB Created: 2021-02-12 16:58:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 484a82add88fd2dbf43134fa4706e4c6 SHA-1: 594b7771b231c1227677963fb95f292360206ca5 SHA-256: 0fc1e970c06b2545428b9fd7d085f30ca1deb90964b2283d0a91c4938c6ea1c8
186 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 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=the+road+to+war+worksheet+answers PDF link annotation
    • https://vuginavoji.weebly.com/uploads/1/3/0/7/130775358/9529301.pdfIn PDF document text
    • https://puvomowaja.weebly.com/uploads/1/3/4/3/134318832/tuxitone.pdfIn PDF document text
    • https://cdn.sqhk.co/bamikalagov/fJhj2Hs/online_java_application_compiler.pdfIn PDF document text
    • https://fumuradowije.weebly.com/uploads/1/3/0/7/130739974/lapuvobipejekexuv.pdfIn PDF document text
    • https://cdn.sqhk.co/fekigimuzib/4XqPZic/13254200022.pdfIn PDF document text
    • http://com-signto6.xyz/89822451813mhrz2.pdfIn PDF document text
    • https://dapalijika.weebly.com/uploads/1/3/0/7/130738969/fedeji.pdfIn PDF document text
    • https://cdn.sqhk.co/zanaforare/djfIGhj/1451838011.pdfIn PDF document text
    • https://zorusijumabek.weebly.com/uploads/1/3/4/8/134851431/zonifopitusogeg_jesijizijajof_kolenuduja_tuwepiti.pdfIn PDF document text
    • https://jumirusuvowelu.weebly.com/uploads/1/3/4/6/134632856/614d9.pdfIn PDF document text
    • https://cdn.sqhk.co/waxolulum/ghhiyib/steamboat_springs_fire_map.pdfIn PDF document text
    • https://cdn.sqhk.co/menaleratupo/v91TicY/1774972700.pdfIn PDF document text
    • https://cdn.sqhk.co/delojiwuguj/jjjgevh/epic_dragons_tower_defense_mod_apk.pdfIn PDF document text
    • http://grafoanaliz.ru/orbit_for_pc_softonichudyj.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/lolijexejomak/hey_jude_beginner_piano_sheet_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_off0000d3b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD3B6 4984 bytes
SHA-256: 55e239adc2c1b47e35fe4fb8e83b3c92aaac8673010ca2b98ceb7a0f087c753d
font_01_sfnt_off0000e4ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4AE 10204 bytes
SHA-256: ea2f2652844a23961a7c88c16b7c6be99a0e63f1c15bba1a4bdadc42e4cba7dd