Malicious PDF — malware analysis report

Static analysis result for SHA-256 564d2332f5def7e7…

MALICIOUS

PDF

70.4 KB Created: 2021-03-06 06:49:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 27e292f40323ffc213afc55d08a7a4e0 SHA-1: 026c1f3adec343463bde32645f365b637ef7582f SHA-256: 564d2332f5def7e75b470af296a5fb8a79139609423b2464f5d50b992638bc8d
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, many pointing to Weebly-hosted PDFs, suggesting a link farm for SEO manipulation or malware distribution. The primary URL, 'https://xajibur.ru/wix?keyword=fat+mario+game+unblocked', indicates a lure to a game-related website. ClamAV and ML classifiers confirm maliciousness, with ClamAV identifying it as a phishing trojan.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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 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.
  • 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/wix?keyword=fat+mario+game+unblocked PDF link annotation
    • https://ribebofav.weebly.com/uploads/1/3/2/6/132681502/94400.pdfIn PDF document text
    • https://regutipedazuvi.weebly.com/uploads/1/3/1/0/131071249/1164121.pdfIn PDF document text
    • https://wobomiti.weebly.com/uploads/1/3/4/5/134501920/retemal.pdfIn PDF document text
    • https://zulevoto.weebly.com/uploads/1/3/2/6/132696122/woridur.pdfIn PDF document text
    • https://mokufanogokotim.weebly.com/uploads/1/3/1/4/131406807/mupatibosetavor_zatawutarowuxat_zemunokitopare_kafefaxagabox.pdfIn PDF document text
    • https://bavanakeburosot.weebly.com/uploads/1/3/5/3/135302165/miwoza.pdfIn PDF document text
    • https://cdn.sqhk.co/nuzitomizaj/yieZ0Ac/2531160391.pdfIn PDF document text
    • https://megoximigiwuboz.weebly.com/uploads/1/3/4/5/134579220/912156.pdfIn PDF document text
    • http://de-bewertung-id-q2e5t23.top/nissens_catalogq20jq.pdfIn PDF document text
    • https://cdn.sqhk.co/nadizolobe/jcBhfNZ/bubble_star_plus.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371807/normal_602c66263e746.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464878/normal_5ffe2a5d4ede1.pdfIn PDF document text
    • http://wegansit.space/91864427664kuaz5.pdfIn PDF document text
    • https://kadogejajufa.weebly.com/uploads/1/3/4/7/134717900/tudif_torelezavetude.pdfIn PDF document text
    • https://cdn.sqhk.co/pekebugus/A2lC7ia/computer_building_guide_for_beginners.pdfIn PDF document text
    • https://metolokinazez.weebly.com/uploads/1/3/1/4/131452743/95c62f29.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/xukanomarexumu/facebook_video_without_link.pdfIn PDF document text
    • https://s3.amazonaws.com/wudibirewuduto/vuritiponivomebanetavi.pdfIn PDF document text
    • https://s3.amazonaws.com/galinikagopit/25696345389.pdfIn PDF document text
    • https://s3.amazonaws.com/mibiwivanetuj/10079292231.pdfIn PDF document text
    • https://s3.amazonaws.com/titugome/27516404768.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_off0000d721.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD721 5240 bytes
SHA-256: cb72cd70a9134168cb6e29fd8ecda2ef526378e779cb968bbfa9821fd6d4494a
font_01_sfnt_off0000e8e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8E1 10300 bytes
SHA-256: 3d7d2a80e1e766b3146d9d07ee3add7ad2653cdd39832c46c077c3d47bc0f35b

Open this report in the interactive analyzer, or submit your own file for analysis.