Malicious PDF — malware analysis report

Static analysis result for SHA-256 3715747310afe033…

MALICIOUS

PDF

72.9 KB Created: 2020-12-27 09:23:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e15d3f800d9a6b7c4d2ea29bbd3f3be2 SHA-1: 577e55838c0193253c13cfb9fc0d4a1d5588a4b3 SHA-256: 3715747310afe033a0edfcb0440fae62af9a6b6c632dd99a64b6f3234b085939
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 URI pointing to 'https://trafficel.ru/strik?utm_term=wbtv+anchors+leaving', suggesting a phishing or malware distribution attempt. The document body is heavily obfuscated, but the presence of external URIs and the overall detection profile indicate a malicious intent, likely related to phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://trafficel.ru/strik?utm_term=wbtv+anchors+leaving
    • https://cdn.sqhk.co/desiruzag/cDhfIxH/xenikajon.pdf
    • https://cdn.sqhk.co/samigimas/SOLQVhc/to_the_moon_phora.pdf
    • https://static.s123-cdn-static.com/uploads/4460241/normal_5fe5d46c3e2b3.pdf
    • https://cdn.sqhk.co/godivago/nZWiiKa/super_adventure_world_platform_game_download.pdf
    • https://cdn.sqhk.co/zititepu/Nibuwmr/65483498407.pdf
    • https://cdn.sqhk.co/wezopexa/YYjdjeU/pin_pulling_puzzle_game_app.pdf
    • https://cdn-cms.f-static.net/uploads/4375703/normal_5f8ef12546db1.pdf
    • https://cdn-cms.f-static.net/uploads/4385850/normal_5f9159c8742ee.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/5ab34846-465a-48e4-a818-4465ad4cdbed/sabujidujuwojexenal.pdf
    • https://uploads.strikinglycdn.com/files/caaeb703-fc3c-4604-b9ba-7f8649eacc3d/vakimoxa.pdf
    • https://uploads.strikinglycdn.com/files/d054e017-6d45-4876-bfb0-93d871040a4a/53686316154.pdf
    • https://uploads.strikinglycdn.com/files/7b7387eb-5952-44ea-aee5-70d665492792/the_hunger_games_book_1_read_online.pdf
    • https://s3.amazonaws.com/toliwudalamem/bicycle_thieves_malayalam_movie_400mb.pdf
    • https://uploads.strikinglycdn.com/files/98e6937e-de1f-4c4e-9c21-04abd450dfa8/zixiduru.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_off0000dfa7.bin
d0a87aefab101a75aa253c519889af9693e7362410b1864b8e68ea1e2ae9f435		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDFA7 5272 bytes
font_01_sfnt_off0000f1a3.bin
6db1b8a4a58cf107d8216871a2732b0b3de05bd6ce0ac073cd2fd49c83d9d200		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF1A3 10988 bytes

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