Malicious PDF — malware analysis report

Static analysis result for SHA-256 f924505c4838bf37…

MALICIOUS

PDF

75.2 KB Created: 2021-03-22 15:29:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47ee31aa539ac77ac1c089eee7afa478 SHA-1: 2e5fc2e11b87f9ba44fd1695be23f6226f611f9c SHA-256: f924505c4838bf37a89e6a06b8e67076d27f49c76b5dddc3022e2e823a738e4d
96 Risk Score

Malware Insights

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

The PDF document contains an embedded URL that redirects to a malicious domain, likely intended for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to exploit vulnerabilities or trick the user into navigating to a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://xezojetit.ru/strik?utm_term=how+to+repair+a+kitchen+faucet+leaking+at+the+base
    • http://s7hmus.org/mewurijusatoffcclg.pdf
    • https://wojawodexof.weebly.com/uploads/1/3/4/6/134673733/38e9c9fc.pdf
    • https://biruwilajefi.weebly.com/uploads/1/3/4/6/134651793/b5e4e20.pdf
    • https://mafobosapufi.weebly.com/uploads/1/3/4/5/134505980/5730954.pdf
    • http://prizinsta24.online/melipovetevepiwoh2fyy.pdf
    • https://jotukodapoze.weebly.com/uploads/1/3/4/6/134632246/gaxezogim.pdf
    • https://kutijodokijo.weebly.com/uploads/1/3/4/7/134706590/709519.pdf
    • http://doweryklkq.space/mechanical_engineering_definition_in_englishhtuq0.pdf
    • https://jisogixisizula.weebly.com/uploads/1/3/4/3/134328009/4ae883.pdf
    • http://dvestideyli.xyz/echo_backpack_leaf_blower_not_startingf8x33.pdf
    • http://classicalnaturally.com/fipibixutujcim7j.pdf
    • https://sazadasixitabe.weebly.com/uploads/1/3/4/4/134404720/rimagaposi.pdf
    • https://gidelusibi.weebly.com/uploads/1/3/4/0/134040719/runed.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/9fe13b4a-5de6-482a-b76b-f47c0f78b1dd/38924950836.pdf
    • https://s3.amazonaws.com/zikeko/inferno_brown_novel_summary.pdf
    • https://s3.amazonaws.com/xopugup/does_pua_still_get_the_extra_600.pdf
    • https://uploads.strikinglycdn.com/files/e4b80db7-d56a-4387-af05-454cf0bdec69/jawinedofili.pdf
    • https://uploads.strikinglycdn.com/files/9aa79f3f-a273-45aa-b6a3-1e93bc476f81/how_to_write_a_letter_ireland.pdf
    • https://s3.amazonaws.com/mijumomub/sosisoz.pdf
    • https://s3.amazonaws.com/bofake/12931291251.pdf
    • https://s3.amazonaws.com/fopalew/relapse_prevention_plan_template_eating_disorder.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e817.bin
cf172a2bdac25f0d30a0ba43258388521497dfe5c3a4533f28e3b79ce91af074
pdf-font-stream PDF embedded font (sfnt) at offset 0xE817 5536 bytes
font_01_sfnt_off0000faf6.bin
580245dbcedbe73ba007e194dd06798dc79409130e57944a3b8851b68774e125
pdf-font-stream PDF embedded font (sfnt) at offset 0xFAF6 10480 bytes