Malicious PDF — malware analysis report

Static analysis result for SHA-256 297ee33e0c968fa4…

MALICIOUS

PDF

69.2 KB Created: 2021-02-22 22:39:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b781678485013c8f8d26dfc2fcefd5d1 SHA-1: 51db07723b52e8f5fa510c7a8318c2c561f3e4d4 SHA-256: 297ee33e0c968fa48940ecdb1a1c0e09a400a3d97f38360b4ba772eabdb49b94
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://jottigo.ru/wix?keyword=human+skeletal+system+crossword+puzzle+answers PDF link annotation
    • https://cdn.sqhk.co/vavewiren/ihiemhi/ghost_rider_wallpaper_download_for_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/dudumadopole/c5jjha6/ivar_the_boneless_hairstyles.pdfIn PDF document text
    • https://suzagosezamonu.weebly.com/uploads/1/3/4/4/134446802/6523752.pdfIn PDF document text
    • https://cdn.sqhk.co/pujazojiwixi/JiajIgf/gapaf.pdfIn PDF document text
    • https://cdn.sqhk.co/lewulula/djgPmhQ/apowermirror_screen_mirroring_for_pc_tv_phone_pc.pdfIn PDF document text
    • https://tabupuja.weebly.com/uploads/1/3/4/6/134647436/tifej.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476566/normal_5fe391707173b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495558/normal_600ebbe45afac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477156/normal_5fd925b61279d.pdfIn PDF document text
    • https://cdn.sqhk.co/jabisopomuxo/gishehe/lapelifawesufazag.pdfIn PDF document text
    • https://mapetafuje.weebly.com/uploads/1/3/2/7/132741207/4988941.pdfIn PDF document text
    • https://cdn.sqhk.co/wifinalimow/kH4Tthf/word_search_perfect_pets.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475987/normal_600887f2b21e5.pdfIn PDF document text
    • https://tibijipobarak.weebly.com/uploads/1/3/4/4/134493900/famexij.pdfIn PDF document text
    • http://wekawuro.22web.org/mla_format_argumentative_essay_outline.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gafelen.epizy.com/jakilolidajowugimuwu.pdfIn PDF document text
    • https://s3.amazonaws.com/nedijowewoded/caney_fork_river_fly_fishing_guides.pdfIn PDF document text
    • https://s3.amazonaws.com/kefodek/twin_size_fitted_sheet_sets.pdfIn PDF document text
    • https://s3.amazonaws.com/luxaduzimase/lizeliwabupi.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_off0000d1db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1DB 5488 bytes
SHA-256: 9d9ac97e1982d801f120ed6fa46eaad00b2fea411bc49b8ed5ef83893f3b6aff
font_01_sfnt_off0000e48d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE48D 10176 bytes
SHA-256: b0ca436c36668dca35a53baa75f4d84698c7772644a1d1cb75bf6c3c5c6748e6