Malicious PDF — malware analysis report

Static analysis result for SHA-256 6f994e73dbaadf7c…

MALICIOUS

PDF

69.6 KB Created: 2021-03-03 14:41:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 3d593ba46c5a360ade5184c05d3caf95 SHA-1: c983e86ff754dfb95237b6b0a868e679cede4802 SHA-256: 6f994e73dbaadf7c015454d8b104c0335577cfb8946ca033cce5bd2bd29d1104
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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://xajibur.ru/award?keyword=walmart+pharmacy+contact+number PDF link annotation
    • http://shopyou.online/netflix_android_apk_old_version77ntg.pdfIn PDF document text
    • https://cdn.sqhk.co/budatumibowu/PI9ibPf/66761622139.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370985/normal_600c4048eef78.pdfIn PDF document text
    • http://rasudilikid.mywebcommunity.org/expert_c_programming_deep_c_secrets_by_peter_v._linden.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369138/normal_5fce3489868aa.pdfIn PDF document text
    • https://cdn.sqhk.co/sixitigoxeto/9Vhjgju/carrom_board_full_size_40_inch.pdfIn PDF document text
    • http://wugumonisukanib.sportsontheweb.net/how_do_you_find_the_interior_angles_of_a_polygon.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385850/normal_601841c3816e9.pdfIn PDF document text
    • https://rixagaxovexi.weebly.com/uploads/1/3/4/0/134000332/bifinibixapotezadu.pdfIn PDF document text
    • http://alcozerox.com/lisasamejojupaverllumg.pdfIn PDF document text
    • https://kinijenu.weebly.com/uploads/1/3/4/6/134641264/wuxepifixoxowum.pdfIn PDF document text
    • https://newewakezodem.weebly.com/uploads/1/3/4/6/134680802/jumabitebali.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488349/normal_5fd1d3a8cc673.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368496/normal_5fe16a61de83c.pdfIn PDF document text
    • http://classicalnaturally.com/gegatimegudokigp5dxd.pdfIn PDF document text
    • https://patinijogu.weebly.com/uploads/1/3/4/8/134854147/572387.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d4c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4C4 5248 bytes
SHA-256: 6f0aab816ab9fbc1ad535d5ba6c838997cf63bcd551ecc59f024c62ff60510cd
font_01_sfnt_off0000e686.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE686 10288 bytes
SHA-256: bb0d08d9e69e6f83dd7e65892332f7970ff05f8f05bddf9c72ab7fb7fe94f8f0