Malicious PDF — malware analysis report

Static analysis result for SHA-256 30a0ac7ba3d21864…

MALICIOUS

PDF

71.8 KB Created: 2021-02-21 20:58:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 59b1514efc2aca3d454e77cb0d885a8f SHA-1: 14d9a6950cfe020a1fb42635b7d6a8ac52597603 SHA-256: 30a0ac7ba3d21864dc9764f0c022cb6f0282528ea5925e2f43537dbe2bf1bfed
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://baarspo.ru/aws?utm_term=ejemplos+de+monografias+hechas+en+pdf PDF link annotation
    • https://cdn.sqhk.co/kulobibab/MehfAie/hovercraft_takedown_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/videgogaf/ishdghM/98424087043.pdfIn PDF document text
    • http://perevod-card2card24.site/pulutulibuwakitihyx0h.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367648/normal_5fe77526ee1af.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413374/normal_6017f7f711a77.pdfIn PDF document text
    • http://ita-bio.space/armor_landon_austin_lyrics_deutschly1ks.pdfIn PDF document text
    • https://cdn.sqhk.co/dekaroku/hbhi3qG/fizimisogul.pdfIn PDF document text
    • http://energierecrute-emplois.com/795368253829g77t.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383452/normal_5fefffadadab8.pdfIn PDF document text
    • https://cdn.sqhk.co/pelotuwew/egigjgy/super_adventure_pals_walkthrough.pdfIn PDF document text
    • https://cdn.sqhk.co/xuvisisitinu/hehdicp/fall_guys_xbox_one_store.pdfIn PDF document text
    • https://titapogesasoja.weebly.com/uploads/1/3/1/3/131380181/8656707.pdfIn PDF document text
    • http://boost-store.net/shudder_definition_noun91vhn.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374211/normal_5fcf144947ed8.pdfIn PDF document text
    • https://nurigefisigutip.weebly.com/uploads/1/3/4/6/134628418/wobov.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_off0000d8ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8AE 5604 bytes
SHA-256: 68e4a85ff491103ecd0787ac4cd180626b9b74dd4f7b91a47506ad081e0523ed
font_01_sfnt_off0000eb98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB98 11528 bytes
SHA-256: c5b55a353cf2cd059decbcfdbdc17ebdbc502a18c75d35544643d2508982b455