Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d8339660c880e0e…

MALICIOUS

PDF

66.2 KB Created: 2020-11-24 13:02:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 925839af327aa19c8ab2d0997db8711f SHA-1: 7532ce7ea52c7da6791b8a10c4e3904f53849e42 SHA-256: 6d8339660c880e0ecff4195e4c9f73495a14f12c094eca72d886a21229a8b84c
244 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document functions as a link farm, directing users to multiple external websites, including a known malicious redirector. The primary malicious URL identified is 'https://gettraff.ru/strik?utm_term=mw3+mods+xbox+360'. The document's structure and embedded links suggest an attempt to drive traffic to potentially malicious or phishing sites, leveraging a lure related to 'mw3 mods xbox 360'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://gettraff.ru/strik?utm_term=mw3+mods+xbox+360 In PDF document text
    • https://cdn-cms.f-static.net/uploads/4413019/normal_5faf6570cb236.pdfIn PDF document text
    • https://momibugu.weebly.com/uploads/1/3/4/6/134674353/mibimadojademenabase.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421210/normal_5fa51be65ac44.pdfIn PDF document text
    • https://zokunokakepano.weebly.com/uploads/1/3/4/3/134353677/jagefopas_fazaruwevuz_nivugajajuj.pdfIn PDF document text
    • https://mabanopovofed.weebly.com/uploads/1/3/1/4/131453130/xusarawekefimira.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488329/normal_5faaffee870fb.pdfIn PDF document text
    • https://gabamavipe.weebly.com/uploads/1/3/3/9/133999819/05bf447a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369168/normal_5f8e6a43ba102.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383322/normal_5f9ecdbb1bc55.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379370/normal_5fbc692b9923a.pdfIn PDF document text
    • https://bileravufal.weebly.com/uploads/1/3/4/7/134749654/sadiga_vogeberapisenu_dobitafew.pdfIn PDF document text
    • https://wunamixexot.weebly.com/uploads/1/3/4/4/134456109/faxisija_nabom_begedi_tibopixedivo.pdfIn PDF document text
    • https://junafoxotoroj.weebly.com/uploads/1/3/0/7/130738975/zibibefur-gebuden-namutomifu.pdfIn PDF document text
    • https://fewefemuge.weebly.com/uploads/1/3/4/3/134372507/b6d280f7bd71cbc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/mijedusovineti/nakikemetunodukadase.pdfIn PDF document text
    • https://s3.amazonaws.com/nezanurugega/vififib.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b834.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB834 4832 bytes
SHA-256: 2d1ee5b457fe11e49ffaf10eaf544881ff736dddccffc3a6e8f852f857def9a7
font_01_sfnt_off0000c8af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8AF 10872 bytes
SHA-256: c5b26021c9c5d2fb4c470bcf44eb6346767e247a0c6e7b144bdf4546e4d7f030
font_02_sfnt_off0000ee09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE09 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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