Malicious PDF — malware analysis report

Static analysis result for SHA-256 8801b1e4cd26c5ff…

MALICIOUS

PDF

75.6 KB Created: 2021-02-24 10:22:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 074bdb07b5e8264ec5055c99cd230918 SHA-1: 595f917c17c9fb0f13ee4be2e4d2d2434bea0131 SHA-256: 8801b1e4cd26c5ff47299f7930a964f6788f2c5d721d5c92cfa6cdcb87ea9702
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://bologen.ru/wix?keyword=dead+trigger+2+apk+mod+latest+version PDF link annotation
    • https://cdn.sqhk.co/suvezadamut/JITygcU/41271357960.pdfIn PDF document text
    • https://zaloposigino.weebly.com/uploads/1/3/0/7/130739621/lawewukib.pdfIn PDF document text
    • https://cdn.sqhk.co/vumorumuvogi/zjdYgfb/blocktopograph_para_ios.pdfIn PDF document text
    • http://jifixadilo.22web.org/4916383580.pdfIn PDF document text
    • http://suxiwef.22web.org/mamize.pdfIn PDF document text
    • https://cdn.sqhk.co/dejuxafe/dgfpjh5/95176563781.pdfIn PDF document text
    • https://gosopitodemeku.weebly.com/uploads/1/3/4/8/134874694/8151206.pdfIn PDF document text
    • https://cdn.sqhk.co/befozaxulot/g3eibud/super_adventure_island_2_snes_rom.pdfIn PDF document text
    • https://silujufadusume.weebly.com/uploads/1/3/1/1/131164496/gebup_weloropuj_nevifupekutep.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389366/normal_6035e4c10b47b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476421/normal_5fd72fdf0f00e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4529024/normal_60030dba64f27.pdfIn PDF document text
    • https://cdn.sqhk.co/gowamojon/gc4Qgi0/15182142809.pdfIn PDF document text
    • https://cdn.sqhk.co/dekavaka/ijJhxqL/notorious_big_life_after_death_album_songs.pdfIn PDF document text
    • http://maddot.space/98327982405me0li.pdfIn PDF document text
    • https://cdn.sqhk.co/gizoxemovefi/d1tJb7N/the_elder_scrolls_legends_card_backs.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488335/normal_600edea4f4071.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kutelitowolobe.rf.gd/best_way_to_clean_and_sanitize_a_hot_tub.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_off0000eb7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB7B 5532 bytes
SHA-256: a49f0d9f7a755fdfe55ae4f6b3733ab490e3a177c45ad004603844eec998a963
font_01_sfnt_off0000fe4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE4A 10184 bytes
SHA-256: 4815ea2cb9ae231b84f9f9dfaa219c7bdfb8c00812446a0421f8ecbd0a4ae97b

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