Malicious PDF — malware analysis report

Static analysis result for SHA-256 4c22e1010f9b6963…

MALICIOUS

PDF

69.6 KB Created: 2021-02-21 09:43:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: cf679803bf52c3463f4517721112ee92 SHA-1: fe777704bc41eb19263133f641ef6e866a1e18ad SHA-256: 4c22e1010f9b6963f007c740f048099cb7e7f06f4a05d4ee172ca5fa1f87058a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://maypoin.ru/wix?keyword=world+history+timeline+map PDF link annotation
    • https://pujuwofox.weebly.com/uploads/1/3/4/8/134882524/vazit_kuzel_mafezet.pdfIn PDF document text
    • https://cdn.sqhk.co/lokalofobox/bgcMZja/snakehead_fishing_charters_maryland.pdfIn PDF document text
    • https://zajosozuxisofe.weebly.com/uploads/1/3/1/4/131407459/xilikigafovasetu.pdfIn PDF document text
    • http://nashremont.site/snesdroid_shaders_downloadvlmep.pdfIn PDF document text
    • https://jovigazever.weebly.com/uploads/1/3/1/6/131637362/4609122.pdfIn PDF document text
    • https://cdn.sqhk.co/ritapabinap/Pjcmnid/16370307035.pdfIn PDF document text
    • https://cdn.sqhk.co/pedidagow/1Oagjjc/gipesuzubuladen.pdfIn PDF document text
    • http://usesoda.pro/21st_birthday_invitation_wording_templates5cko2.pdfIn PDF document text
    • https://sapafusazefo.weebly.com/uploads/1/3/4/4/134496158/fbec196f.pdfIn PDF document text
    • https://tiforunu.weebly.com/uploads/1/3/1/4/131437018/remerufa.pdfIn PDF document text
    • https://ginuzakonufa.weebly.com/uploads/1/3/2/6/132681862/4103455.pdfIn PDF document text
    • https://cdn.sqhk.co/votijavos/ehhiajh/51950812635.pdfIn PDF document text
    • https://mojogobiwed.weebly.com/uploads/1/3/4/7/134747953/102b9.pdfIn PDF document text
    • http://idealslim-italiaoficial.site/handbook_of_cardiac_anatomy_physiology_and_devices57bzl.pdfIn PDF document text
    • http://rerubin.space/51425823160vtuvo.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/pafiganovavi/auto_repair_manuals_free.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_off0000d51c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD51C 5312 bytes
SHA-256: 325f7b823091fee6fc87cda95dab27fe0331817f5a34485a6bce8e551d7aad25
font_01_sfnt_off0000e70e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE70E 10148 bytes
SHA-256: 0ee22e54404a307b2e6a9500d173b3a65e83c8ebad35df3d7c4a0704f025eec5