Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c022459699c24ee…

MALICIOUS

PDF

68.6 KB Created: 2021-03-28 01:39:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 034ce2b7c15d3402694c40add904f293 SHA-1: 8eaf806d39b69d215b83ad2ecffde73a9ffb7ca0 SHA-256: 9c022459699c24ee86f4ffd4d79c2eec27f80aedc4282a54f7625f2e0412d229
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 specific detection name of Pdf.Phishing.Trojan. An external URI pointing to 'botokaw.ru' was extracted, suggesting a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains metadata related to wkhtmltopdf and a date, indicating it might be a crafted PDF designed to exploit vulnerabilities or trick users into visiting the malicious URL.

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://botokaw.ru/award?keyword=kandungan+kimia+buah+belimbing+wuluh+pdf
    • https://cdn-cms.f-static.net/uploads/4468819/normal_5fe6122986bf8.pdf
    • http://tafugegajotu.mygamesonline.org/jvc_camcorder_battery_bn-v20u.pdf
    • http://ukrdomonis.xyz/planet_fitness_tredegar_contact_numbera8hb8.pdf
    • https://static.s123-cdn-static.com/uploads/4451744/normal_5ff9020a62f22.pdf
    • http://maxist.ru/what_foods_are_rich_in_complex_carbohydrates0uadt.pdf
    • http://sajiwurejedetu.sportsontheweb.net/is_the_killing_on_netflix_uk.pdf
    • https://static.s123-cdn-static.com/uploads/4421478/normal_5fc842545df02.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://5e0c4d4d-41f9-428c-9564-b93e7cff6769.filesusr.com/ugd/510691_37ad2092df924e89a1acff6f0d284a98.pdf?index=true
    • http://xepatodop.onlinewebshop.net/arkham_city_walkthrough.pdf
    • http://tulawaremape.epizy.com/peluxizubajex.pdf
    • https://uploads.strikinglycdn.com/files/2fb4186f-a11b-4a08-9d26-feace8426a92/how_to_fix_oven_knob.pdf
    • http://zorikeroz.onlinewebshop.net/divejusodu.pdf
    • https://41c240d9-b4af-4f88-8fa4-2a41cce3a287.filesusr.com/ugd/01bc73_ef49d22689284e9a94432ee4080934b5.pdf?index=true
    • https://uploads.strikinglycdn.com/files/d2d2e62a-9270-49d2-8eb0-d26ef1c5b18f/vafiwubikewuboludisaxaj.pdf
    • https://uploads.strikinglycdn.com/files/1eb8ed24-9103-4473-84e5-3c0c2da93d5a/fiwufedok.pdf
    • http://nedupidanasadef.rf.gd/15436902676.pdf
    • https://uploads.strikinglycdn.com/files/42f53ee1-790e-4c03-884c-267cc8f564af/download_jumping_the_broom_full_movie_2011.pdf
    • https://f39f7cea-6337-46de-af4f-699959e6db0a.filesusr.com/ugd/004672_df7268d1482643d0a2bdc39b070ea08f.pdf?index=true
    • https://20996a60-9695-4f45-8fdb-44bdc783da55.filesusr.com/ugd/c57cae_542a7e65206049cd85cc9327e04473f7.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_off0000ce3c.bin
256df273347e76754da34d71591bbd984bdcde00fe9f7e9d9e62f8f13307d493		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCE3C 5444 bytes
font_01_sfnt_off0000e0b6.bin
1972b0c9627892b0b1cd8d288abc35cc6dad0bdc8057a1820caa66f943f404fe		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE0B6 10716 bytes

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