Malicious PDF — malware analysis report

Static analysis result for SHA-256 af6be6da88262848…

MALICIOUS

PDF

75.1 KB Created: 2021-02-04 08:40:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: b2aede8dd53b446ffd8b2a8d65323199 SHA-1: 194401b8e5fc9d51779cc125f769bfb2ffcc63cf SHA-256: af6be6da8826284834ddee4210c2e9b79192ec19dbc2a166b2eb508515d8990f
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://leonvi.ru/aws?utm_term=l+found+love+song PDF link annotation
    • https://revunipaletofux.weebly.com/uploads/1/3/0/8/130874393/lunuresofon_rajokepun.pdfIn PDF document text
    • https://buzufurabobozu.weebly.com/uploads/1/3/5/3/135304208/e3f61dcb4.pdfIn PDF document text
    • http://katermore.ru/vocals_pack_freeechil.pdfIn PDF document text
    • http://dvestideyli.xyz/becoming_a_werewolf_in_minecrafteegyt.pdfIn PDF document text
    • http://soldonlakewood.com/modegitotekipoi927.pdfIn PDF document text
    • https://cdn.sqhk.co/tunuviju/5CXKjfk/running_room_race_director_dashboard.pdfIn PDF document text
    • https://cdn.sqhk.co/pabelemusib/cL8haeG/josanovek.pdfIn PDF document text
    • https://cdn.sqhk.co/nalawanuxa/XcieHic/all_78_tarot_cards_names_and_meanings.pdfIn PDF document text
    • https://jiromozuno.weebly.com/uploads/1/3/5/3/135387519/e9dc60ff.pdfIn PDF document text
    • https://nipetetoxijekuj.weebly.com/uploads/1/3/4/7/134718304/lijepalamepefezes.pdfIn PDF document text
    • https://tivaxuxilo.weebly.com/uploads/1/3/4/1/134131375/parimapokevite-magekeberesus-xamanoragif.pdfIn PDF document text
    • https://cdn.sqhk.co/xugavizira/cjcqhaj/crazy_touchdown_celebration.pdfIn PDF document text
    • https://cdn.sqhk.co/xegapanasa/jeZhjhj/minecraft_pickaxe_enchantments_mod.pdfIn PDF document text
    • https://cdn.sqhk.co/kosenopelid/2jihchc/7171968275.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/niwotipugonuvoz/fukog.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_off0000e9d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9D5 4772 bytes
SHA-256: c1263ede7602326f4ba447eef247657b6f7132e99a31c46e53e322c85f54fb03
font_01_sfnt_off0000fa3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA3B 11092 bytes
SHA-256: ff51820ebae9590a51adf6ffa4fdb3f15423810479552025be2bee84acbe3105