Malicious PDF — malware analysis report

Static analysis result for SHA-256 0cea0147e23f0128…

MALICIOUS

PDF

75.4 KB Created: 2021-03-18 02:56:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a41a0321f251e1bf725679fa857a400 SHA-1: 2bff45b0b48df499eb5bd31984d1b851db597cd7 SHA-256: 0cea0147e23f01284a75866763f78b92809b6d96bb249d0f8ef56c002218958b
96 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by ML classifiers and ClamAV. It contains an external URI pointing to a suspicious domain, likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to a 'Karachi chamber of commerce visa form', indicating a phishing attempt to trick users into downloading further malicious content.

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://dafemum.ru/123?utm_term=karachi+chamber+of+commerce+visa+form
    • http://tosefabebiribow.scienceontheweb.net/vexuxisegexevof.pdf
    • http://boost-shop.xyz/imac_user_guide_applefiws6.pdf
    • https://static.s123-cdn-static.com/uploads/4494673/normal_5fff0a78a214f.pdf
    • http://newoxoxi.mywebcommunity.org/33334195706.pdf
    • https://static.s123-cdn-static.com/uploads/4454182/normal_5ff13fde191dd.pdf
    • https://cdn.sqhk.co/peluxisomex/S5mVSmR/xodifizelezisam.pdf
    • http://idealslim-ordina.site/mexavaniiit7q.pdf
    • https://cdn-cms.f-static.net/uploads/4474736/normal_600faba9562e9.pdf
    • http://jaralet.getenjoyment.net/68445892614.pdf
    • https://cdn.sqhk.co/sabumijobude/gdjgtgf/tasty_planet_forever_download_free_pc.pdf
    • http://nomudepalak.medianewsonline.com/explosive_welding_process.pdf
    • http://rodina38.ru/memedumoratugerhfxl3.pdf
    • http://xulodol.mygamesonline.org/kujanape.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://moxosutemow.onlinewebshop.net/25650994692.pdf
    • https://8ac5c8e1-9174-427d-95c2-90bebb9f105a.filesusr.com/ugd/44b221_5d1c60e088b84954a450ea07c5611eca.pdf?index=true
    • 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_off0000e785.bin
22c481d2aedffd96d86a3f4bec899a63ce99e448e60355acc991a52eec6c96b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE785 5256 bytes
font_01_sfnt_off0000f94c.bin
9d1254fa620f1087898f7fcc3dcbe9c73a647e7387abfaf4e16b0693e54f4c8f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF94C 11500 bytes

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