Malicious PDF — malware analysis report

Static analysis result for SHA-256 03d4edcbac54a993…

MALICIOUS

PDF

69.4 KB Created: 2021-06-10 22:26:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 5a6486471fe307dbdb8ea4f0f67b66df SHA-1: c91f7163c9d3ee7070d090d013d518903fe0aa3a SHA-256: 03d4edcbac54a99376077d0b072209b5d48649830a643dbe51d6c380e83eafa2
186 Risk Score

Malware Insights

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

This PDF document contains a large number of external links, many hosted on disposable domains, suggesting a link farm designed to redirect users to malicious sites. The presence of a specific URL related to 'gta unlimited money glitch' indicates a lure for potentially fraudulent activity or phishing. The ML classifier and ClamAV detection strongly support its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • 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://crewmak.ru/pbw?utm_term=gta+unlimited+money+glitch PDF link annotation
    • https://tewizoduwab.weebly.com/uploads/1/3/5/3/135341898/nedila.pdfIn PDF document text
    • https://wasizizinawuj.weebly.com/uploads/1/3/6/0/136096362/5800797.pdfIn PDF document text
    • https://loxojugeg.weebly.com/uploads/1/3/4/5/134589710/xamotilogoj.pdfIn PDF document text
    • https://rofaxebawo.weebly.com/uploads/1/3/4/7/134750080/sodererulenej.pdfIn PDF document text
    • https://nuresoxak.weebly.com/uploads/1/3/1/3/131380504/3295542.pdfIn PDF document text
    • https://numibogag.weebly.com/uploads/1/3/4/3/134323011/guzotamaxet.pdfIn PDF document text
    • https://minaraxu.weebly.com/uploads/1/3/4/7/134765114/cc42aca8be2b.pdfIn PDF document text
    • https://wugovaxovagebi.weebly.com/uploads/1/3/0/9/130969592/4639283.pdfIn PDF document text
    • https://kiwotatuna.weebly.com/uploads/1/3/1/8/131856308/5512579.pdfIn PDF document text
    • https://mijagipiked.weebly.com/uploads/1/3/4/5/134524971/4768370.pdfIn PDF document text
    • https://tikodukika.weebly.com/uploads/1/3/0/7/130776738/fanesux.pdfIn PDF document text
    • https://dufelawukada.weebly.com/uploads/1/3/2/6/132682042/wugurik.pdfIn PDF document text
    • https://xegegoxona.weebly.com/uploads/1/3/4/4/134470803/lasoduk.pdfIn PDF document text
    • https://lilikegemuvil.weebly.com/uploads/1/3/1/3/131398424/1584423.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bajupuko.pbworks.com/w/file/fetch/144647184/las_apariencias_engaan_pelicula_completa_espaol.pdfIn PDF document text
    • http://kigofot.pbworks.com/w/file/fetch/145041669/81078951201.pdfIn PDF document text
    • http://tazijebep.pbworks.com/f/81031082013.pdfIn PDF document text
    • http://joxakuruvi.pbworks.com/w/file/fetch/145053999/mebowewodejale.pdfIn PDF document text
    • http://buzivevej.pbworks.com/w/file/fetch/145026651/adobe_photoshop_cc_2018_crack_64_bit.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_off0000d229.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD229 5212 bytes
SHA-256: c57fe908d8160432b65eb5d65230d81217a9eff8d25e5c9c4f254140b194f4a9
font_01_sfnt_off0000e3cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3CC 10868 bytes
SHA-256: 9cafd4a81ade182204c00a3982aea00999f4d4adb7e3277ac821a621c61e6c19

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