Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1ed2cff96015489…

MALICIOUS

PDF

70.2 KB Created: 2021-03-04 20:17:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 5d904c165b95675d0c08fdcf2edcfcf3 SHA-1: 1f9d037b14f26e390822b27cb56d149f9c5b0f11 SHA-256: d1ed2cff960154894770d38a105ad381fdae2b2d1a0a5d445bb97e743577c60b
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • 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 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://druttle.ru/award?keyword=citi+bank+bai+codes PDF link annotation
    • https://cdn.sqhk.co/vegedusovo/etifkig/tanglewood_preserve_homeowners_association_inc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456998/normal_5ff52f30c8fed.pdfIn PDF document text
    • http://nasevozowu.22web.org/vunav.pdfIn PDF document text
    • https://cdn.sqhk.co/sileluzorupo/uEjhobk/stickman_swing_y8.pdfIn PDF document text
    • https://cdn.sqhk.co/fiseguvugele/hdIfijO/theblaze_tv_login.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501374/normal_5ffa6c1f56131.pdfIn PDF document text
    • http://vexawenebo.22web.org/come_trasformare_centimetri_cubi_in_metri_cubi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489028/normal_6017a9d4a8538.pdfIn PDF document text
    • https://cdn.sqhk.co/gokarunedod/gQsB6P9/this_is_the_police_investigation_theft.pdfIn PDF document text
    • https://cdn.sqhk.co/zanotunuzi/IihNc5I/word_stacks_392.pdfIn PDF document text
    • https://cdn.sqhk.co/zewapoxi/gjHhjjj/bowling_alley_west_springfield_ma.pdfIn PDF document text
    • https://cdn.sqhk.co/rurokusulos/jjP2ggc/26735073057.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385633/normal_5fd0a061982cc.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/zupenafud/botola_live_apk.pdfIn PDF document text
    • http://fisafowuvugedug.rf.gd/gotiruvizozowiwomif.pdfIn PDF document text
    • https://55963656-6eb1-4b25-bcd5-bb835d65808b.filesusr.com/ugd/0064ae_ffb7ed5627f04bd2874e30f5492222e1.pdf?index=trueIn PDF document text
    • http://zomimek.epizy.com/836945612.pdfIn PDF document text
    • http://dipodowimovaxi.epizy.com/rawasi.pdfIn PDF document text
    • https://s3.amazonaws.com/waxegatulo/anelidos_y_moluscos.pdfIn PDF document text
    • https://6363ce23-9394-4102-a476-7be320345719.filesusr.com/ugd/7c41c1_4c4640f052004dbb95d39c57e973b54c.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/xuzed/72007545104.pdfIn PDF document text
    • https://s3.amazonaws.com/wurivuve/argussian_reach_exalted_guide.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_off0000d90a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD90A 4912 bytes
SHA-256: a080b39a6c1450480df8b8cb0a05cfa9858aabea4dbae265f0152eca03aec9e8
font_01_sfnt_off0000e9cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9CC 9884 bytes
SHA-256: 0d78e955f3baadd524224b25eb81b329698e86e9fdb77bf9cd0bf56feac6e2d9

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