Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e42f7b614fa26e1…

MALICIOUS

PDF

84.9 KB Created: 2021-03-19 08:43:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0820d8c74595ea1b22f14b6986999461 SHA-1: a71665c5d803109181a240df513dfac8b7c5c8b2 SHA-256: 0e42f7b614fa26e16e793679908d1da398163e0a6fd476b25ed8526ed44d2621
96 Risk Score

Malware Insights

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

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. The embedded URI points to a suspicious URL, 'https://lozipotod.ru/wix?keyword=choke+coil+pdf', which is likely used to host or redirect to a malicious payload. The document body, though heavily obfuscated, contains references to 'choke coil pdf' and the authoring application 'wkhtmltopdf', suggesting a lure to disguise malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://lozipotod.ru/wix?keyword=choke+coil+pdf
    • http://jisetatiloro.scienceontheweb.net/4713853081.pdf
    • https://cdn-cms.f-static.net/uploads/4374979/normal_5fd3c8b122833.pdf
    • https://cdn-cms.f-static.net/uploads/4466398/normal_5fd123f58e770.pdf
    • http://konujojijitezu.iblogger.org/commando_2_song_pagalworld.pdf
    • http://vomamafawib.scienceontheweb.net/17455016265.pdf
    • https://cdn-cms.f-static.net/uploads/4499282/normal_600f288f110a8.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://pasofotamuteper.atwebpages.com/tevoxegibe.pdf
    • http://nifiloxoburufi.rf.gd/awen_badnam_yaro_sharab_ay_mp4.pdf
    • https://e6e31949-ba74-43ae-8e0c-2243355e89fd.filesusr.com/ugd/69e259_7573ad581d79427ab636b6739665bc05.pdf?index=true
    • https://uploads.strikinglycdn.com/files/9d635482-cbd7-46a6-945f-7eede97ce62a/4054447787.pdf
    • http://perexuwofogefo.onlinewebshop.net/best_resistance_bands_uk.pdf
    • https://ed21222e-fee3-4fab-8b52-e2ddb7bb35ab.filesusr.com/ugd/e73fea_9984950cfd3b44b0b7c9765d7257d104.pdf?index=true
    • https://18aefb47-0221-41c7-ace0-4f78eb33e730.filesusr.com/ugd/bca722_0e2e52a91ba3472bb1580bb95c0b1f44.pdf?index=true
    • https://a8fdb364-3865-4521-a36b-e12f4de7752f.filesusr.com/ugd/e20637_738d7fc305514aa492b017d20d24c326.pdf?index=true
    • https://uploads.strikinglycdn.com/files/3780fff0-bf5d-4903-b9f5-829f5638e794/they_poured_fire_on_us_from_the_sky.pdf
    • https://uploads.strikinglycdn.com/files/8b4ecac2-91a4-4616-8648-766c13c08f0c/97870163960.pdf
    • https://s3.amazonaws.com/lulelepese/call_of_duty_ghosts_map_guides.pdf
    • http://kupavojos.epizy.com/2902606442.pdf
    • https://uploads.strikinglycdn.com/files/ec6e7001-2844-498e-91e4-1383b9593f53/vepopotitokulafovapefig.pdf
    • https://uploads.strikinglycdn.com/files/13dec53f-2d39-4298-8c9a-e82304bfbbc7/xasiteju.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ea8e.bin
21936210786c0c065aaddf3fa5aef128f93bfa200a7fa0629186f67571adbc89		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA8E 3360 bytes
font_01_sfnt_off0000f67f.bin
552df664e85d02bd49bb641077b4994e3c75a3ed9f434f579731840df115461d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF67F 4728 bytes
font_02_sfnt_off00010697.bin
31fd235828bf64418fc89aa612b2a9c88ef6417994a6df2f018b11ec29f927de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10697 12128 bytes
font_03_sfnt_off00013011.bin
caa24fd5c06869bded02fbf6d400a6f85b559dd3a9f17f10d417838f5173728d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13011 16392 bytes

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