Malicious PDF — malware analysis report

Static analysis result for SHA-256 4afbb23440aeb626…

MALICIOUS

PDF

66.6 KB Created: 2021-02-19 19:08:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: c3bbb69020509f222351b4541d769b62 SHA-1: 7e4675a817f11ca0d494a198bd67498cddcdcfb0 SHA-256: 4afbb23440aeb6268ae5f0ea9931e8d775c7ee4297bcc97f0fe6eb2864de5fd7
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://bologen.ru/wix?keyword=business+ethics+william+shaw+pdf PDF link annotation
    • http://mgacessoria.online/denidoxetu2zsp7.pdfIn PDF document text
    • https://cdn.sqhk.co/xataruzepape/jjhUED6/sedaved.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467979/normal_5fc99f234e323.pdfIn PDF document text
    • https://cdn.sqhk.co/wovenebi/ifgcidj/download_screen_stream_mirroring_for_windows_10.pdfIn PDF document text
    • https://cdn.sqhk.co/minederepa/dtEwIcl/zepasajorajimetalig.pdfIn PDF document text
    • http://zinabexodepo.iblogger.org/saruluv.pdfIn PDF document text
    • http://usacreditmonitoring.info/application_form_for_passport_officer_recruitment_201944tz1.pdfIn PDF document text
    • http://vsspb.ru/nadigerofagixolamogutn3evp.pdfIn PDF document text
    • http://gelchlen.fun/327974068690mlwe.pdfIn PDF document text
    • http://lefijuf.iblogger.org/nerofetixawaxitekezagex.pdfIn PDF document text
    • http://zonetufe.iblogger.org/87126913256.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kilirafesiva.epizy.com/80357324645.pdfIn PDF document text
    • http://kuwixogup.rf.gd/azshara_guide_tank.pdfIn PDF document text
    • https://s3.amazonaws.com/didowugorokirug/a-_ha_scoundrel_days_1986.pdfIn PDF document text
    • https://s3.amazonaws.com/lorifawuvawot/d_e_full_form_in_medical.pdfIn PDF document text
    • http://mewizokefa.rf.gd/koputopip.pdfIn PDF document text
    • https://s3.amazonaws.com/toniseligiwuzux/83954876943.pdfIn PDF document text
    • http://safuzidavoje.rf.gd/72842214107.pdfIn PDF document text
    • https://s3.amazonaws.com/rafiralexezol/brakeburn_shoe_size_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_off0000c522.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC522 5440 bytes
SHA-256: b6f762e6f1f8e84b60f3bd992b3410edecc78626bfd5630c5baaa29dc190b629
font_01_sfnt_off0000d79c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD79C 10840 bytes
SHA-256: 118310f747e293889f7ac81857832eb3a0a88d241f4a734eeda6f203b03ca9e9