Malicious PDF — malware analysis report

Static analysis result for SHA-256 93e4df0261b282ef…

MALICIOUS

PDF

73.7 KB Created: 2021-02-17 05:56:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 5ba4d96be1c777e7eb8fa843b22a85cc SHA-1: 0dcd40a7bac120626ca1f73b2485ce8f81617d14 SHA-256: 93e4df0261b282efd4cec59a0dc4e0e8f50ff595b4281f51a3e505b84b436327
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jottigo.ru/wix?keyword=optiplex+9020+usff+manual PDF link annotation
    • https://cdn.sqhk.co/bomemenun/6Uhihhj/87743380460.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455881/normal_6020541626bda.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425484/normal_5ff485b5973ac.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418166/normal_60182c3ed22b4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408319/normal_602ad2e2af8a9.pdfIn PDF document text
    • https://cdn.sqhk.co/kululojilo/iijEqAy/labyrinth_of_refrain_wiki.pdfIn PDF document text
    • http://fopesekebamit.22web.org/anatomy_textbook_online.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420222/normal_601fa08e693bf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484631/normal_5ffaf31a80629.pdfIn PDF document text
    • https://cdn.sqhk.co/xuvivazonewa/WYgg7O2/injustice_2_cast.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/widofafane/dizakaxu.pdfIn PDF document text
    • https://s3.amazonaws.com/tolivajupeku/lexical_and_contextual_meaning.pdfIn PDF document text
    • http://paporoj.rf.gd/jidago.pdfIn PDF document text
    • https://s3.amazonaws.com/jolituzoji/whatsapp_status_video_odia_new.pdfIn PDF document text
    • https://s3.amazonaws.com/gafedupeba/gubetusosanudetadeku.pdfIn PDF document text
    • https://s3.amazonaws.com/mizeteb/ragnarok_mobile_alchemist_stats_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/xulepiwa/57997193030.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_off0000e2a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2A4 5476 bytes
SHA-256: 68e740e78cd0c31166413a30073571d42810da81eef10e9989e67f74d6ee8627
font_01_sfnt_off0000f53e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF53E 10744 bytes
SHA-256: f36c3319d2806f722a9bbac9cfba52cc8490ed3971d870824912c9c5c7bb1c2d

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