Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d132ccf547fc630…

MALICIOUS

PDF

73.2 KB Created: 2021-02-05 07:54:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: e8371e4744b32edcf80eca1b974a2a04 SHA-1: 03f33bc7af8e5b8a5e203d7c33b9344a6d1848ed SHA-256: 3d132ccf547fc630772e2a49a56faeac6adb35499971d2f71a1105ac9a827bea
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://jottigo.ru/wb?keyword=love%20breakup%20images%20hd%20free PDF link annotation
    • https://bagirarivevi.weebly.com/uploads/1/3/1/3/131384609/zazukenese.pdfIn PDF document text
    • https://siwevobone.weebly.com/uploads/1/3/5/3/135317475/bodekukerefux-xitubedizexobes-gakujusexof-kifiw.pdfIn PDF document text
    • https://cdn.sqhk.co/saseponirifa/1gjZhSV/classic_prank_call_jokes.pdfIn PDF document text
    • https://rebeluzibefu.weebly.com/uploads/1/3/4/6/134619862/4532607.pdfIn PDF document text
    • https://lanujedajifita.weebly.com/uploads/1/3/1/3/131382078/gasixerafup.pdfIn PDF document text
    • https://cdn.sqhk.co/vozaxodep/8jdhjhc/pencil_skirt_pattern_sewing.pdfIn PDF document text
    • http://steelsho3.club/75104207541kq1aw.pdfIn PDF document text
    • https://cdn.sqhk.co/kekelivig/UE1ggjf/teachers_unions_covid_ontario.pdfIn PDF document text
    • https://cdn.sqhk.co/mepapogivoma/yjd5heO/22558502280.pdfIn PDF document text
    • https://seporarutigofu.weebly.com/uploads/1/3/2/7/132741198/920477.pdfIn PDF document text
    • https://rosunitekuw.weebly.com/uploads/1/3/1/3/131384708/e3dc7a51.pdfIn PDF document text
    • https://cdn.sqhk.co/desogepupema/hJigagd/thoroughly_modern_millie_streaming.pdfIn PDF document text
    • https://cdn.sqhk.co/pimepojuti/tEijigE/38914887915.pdfIn PDF document text
    • http://introdom.ru/tuxezafittvxi.pdfIn PDF document text
    • https://cdn.sqhk.co/ratufewebu/iiggjgi/kalixuguvugotelefewufu.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_off0000e31e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE31E 5628 bytes
SHA-256: 4efd834a9f195b66327cfcd975b60d0f2536b0fde197719361e84e65a10c4867
font_01_sfnt_off0000f61f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF61F 9904 bytes
SHA-256: ad9abea7a3c9b3c63e62fabe891d63d0315600f501ae94223ec0c2ecc00ddcfc