Malicious PDF — malware analysis report

Static analysis result for SHA-256 6dab83ed26ccbbca…

MALICIOUS

PDF

82.7 KB Created: 2021-03-21 21:17:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c4be6ce453daa0313b5653905517bb00 SHA-1: 6143aeccc15adbb96ce76edbb34c249f49875d05 SHA-256: 6dab83ed26ccbbca3ea68384ea29c18f37cc021773bc22d3958ef4ce0c9d0ff1
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a high risk score. It contains an embedded URL pointing to a domain associated with phishing or malware distribution, disguised as a manual. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to trick the user into downloading further malicious content or visiting a phishing site.

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://seumenha.ru/wix?keyword=honeywell+thermostat+rth221b1021+manual
    • https://cdn.sqhk.co/xojelumegasi/Ojegf0j/billiards_no_pockets_rules.pdf
    • https://cdn.sqhk.co/kerutadit/dhdYsgd/chicken_crossing_the_road_joke_explained.pdf
    • http://paselon.getenjoyment.net/twilight_graphic_novel_volume_2_free_download.pdf
    • https://static.s123-cdn-static.com/uploads/4463009/normal_5ff79680a4edd.pdf
    • http://nekidifuton.medianewsonline.com/english_crossword_puzzles_with_answers_for_class_7.pdf
    • https://static.s123-cdn-static.com/uploads/4389571/normal_5ff55916cea23.pdf
    • http://dugarudewemudo.sportsontheweb.net/job_offer_letter_template.pdf
    • https://cdn.sqhk.co/vadavenaw/1jYaije/73929856088.pdf
    • http://zibodotuf.mygamesonline.org/is_wolf_of_wall_street_on_netflix_us.pdf
    • https://cdn-cms.f-static.net/uploads/4470399/normal_5fd2848b96475.pdf
    • http://vukuradi.mygamesonline.org/21318126607.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://5e446c31-fcb6-4427-a178-91ee45bbff8b.filesusr.com/ugd/4e76b8_69830e6f87374c6c882a659be6fb8814.pdf?index=true
    • https://uploads.strikinglycdn.com/files/6c03d620-02a0-4fdc-8f44-4960b22206a0/wositiluve.pdf
    • https://uploads.strikinglycdn.com/files/8c4bdd07-8ae4-4f23-b24a-64bfa9923da2/putikox.pdf
    • https://uploads.strikinglycdn.com/files/c3817612-bf75-4e76-8a80-ba49ec765a6d/87431976074.pdf
    • https://uploads.strikinglycdn.com/files/a0355df0-ad86-4885-9d25-330b4f5ad889/wazefuko.pdf
    • https://uploads.strikinglycdn.com/files/ae5d2ffa-7654-4d79-a8e1-f6bdd9f5b29e/nevofexewotifukefefe.pdf
    • https://70010cfe-69b1-4fe9-a336-bdfe2418dc1e.filesusr.com/ugd/f1d680_32d5f39c776d41ffa0e4c0c41cecdf0b.pdf?index=true
    • http://wobanunep.myartsonline.com/marelexijojusikuf.pdf
    • http://kivozusemu.atwebpages.com/60809122514.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_off0000ff66.bin
aa8663d26627468e7c9c59a804c70a34fe8bdb8c8b8f357d8ad439d6a6cfc170		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFF66 5548 bytes
font_01_sfnt_off00011227.bin
61e4e0e55080c90d42038a4df4b24cb06a1c462f6d1daecb78d88dd2251f380a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11227 12736 bytes

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