Malicious PDF — malware analysis report

Static analysis result for SHA-256 896f1ccd390e26d5…

MALICIOUS

PDF

72.7 KB Created: 2021-02-15 04:51:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: ae017a32acb164db9f48400edbf5aab8 SHA-1: 7bbccd7dc6107139e1f7e200d8781c37351edb18 SHA-256: 896f1ccd390e26d5cf016a9eb1e02993e0a4a88a9816e5cc3daae0ab1a58e897
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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/123?utm_term=tom+yum+goong+recipe PDF link annotation
    • http://zizopeja.22web.org/puvozonizisoni.pdfIn PDF document text
    • http://pumutug.iblogger.org/76905667361.pdfIn PDF document text
    • https://cdn.sqhk.co/vumivatuvi/igjdjhj/56920979327.pdfIn PDF document text
    • http://pegajopakazo.22web.org/36824797438.pdfIn PDF document text
    • https://cdn.sqhk.co/bilanogakiw/zqPTih4/jiwironejes.pdfIn PDF document text
    • https://cdn.sqhk.co/rogumabutur/Qhf6ieP/hitman_reborn_game_2020.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404313/normal_600e6848cd20f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380237/normal_5fd68a064d343.pdfIn PDF document text
    • https://cdn.sqhk.co/perolurowona/vgQgdhd/nuzepepesefekagagegunezev.pdfIn PDF document text
    • https://cdn.sqhk.co/zapiseniw/VjfyaLs/kupijolamumobovad.pdfIn PDF document text
    • https://cdn.sqhk.co/sunalikefazo/ejaieG1/formula_e_2020_championship_standings.pdfIn PDF document text
    • http://nelitip.22web.org/3112021912.pdfIn PDF document text
    • https://cdn.sqhk.co/togokitaz/8r2ZOCA/supuvon.pdfIn PDF document text
    • http://rarurude.22web.org/high_school_community_hours_sheet.pdfIn PDF document text
    • http://gefaveje.22web.org/xedadiwubudafu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://pavasokunise.epizy.com/texas_attorney_client_privilege_former_employee.pdfIn PDF document text
    • http://joxumokuri.epizy.com/pulelumadokej.pdfIn PDF document text
    • http://jiwabesufag.epizy.com/mapa_turstico_bilbao.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_off0000e1b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1B3 4884 bytes
SHA-256: 3d2159be76ca1b758764e37a1806970116c79ab22d88dec3876a28fb131dbddd
font_01_sfnt_off0000f255.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF255 10632 bytes
SHA-256: ea55c0c71a1b446de1820adeea8a590966333ecc86a5ddb482a0e1b4d638c3e5