Malicious PDF — malware analysis report

Static analysis result for SHA-256 786e29dadf541115…

MALICIOUS

PDF

165.6 KB Created: 2021-04-08 04:58:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9f74c5a5f094d1fdbc913e6a5efe8001 SHA-1: e6b53910352ab74f16d05fd1f21077b67162c49f SHA-256: 786e29dadf541115c30cca04ac5875dbcf62370970c46cfeb1a5ce6711919e22
96 Risk Score

Malware Insights

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

The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of an embedded URI pointing to 'botokaw.ru' suggests the document is designed to redirect users to a potentially harmful site. While no scripts were explicitly extracted, the PDF structure and embedded URI are strong indicators of a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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/123?utm_term=acrobat+pdf++for+windows+7
    • https://cdn-cms.f-static.net/uploads/4374685/normal_60404b3e3ce09.pdf
    • https://static.s123-cdn-static.com/uploads/4454052/normal_5fde70d8c2a06.pdf
    • https://static.s123-cdn-static.com/uploads/4369788/normal_5ff9294defe84.pdf
    • https://cdn-cms.f-static.net/uploads/4497395/normal_6065eb367b148.pdf
    • https://cdn.sqhk.co/fogobewataja/6hdjhgf/totopos_restaurant_menu.pdf
    • http://refowozawigut.22web.org/17446499261.pdf
    • http://gunepevoxop.66ghz.com/how_to_clean_filter_of_whirlpool_dishwasher.pdf
    • https://cdn.sqhk.co/gimexigerub/jtpja5B/6339506833.pdf
    • http://vezagoxutejoza.66ghz.com/bupenomadapajigoligoru.pdf
    • https://cdn-cms.f-static.net/uploads/4477173/normal_602efca36b2f5.pdf
    • https://cdn-cms.f-static.net/uploads/4473035/normal_60334ef2e6366.pdf
    • https://cdn-cms.f-static.net/uploads/4392860/normal_602e07c67b8e8.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://bexadujozopu.epizy.com/3886763562.pdf
    • https://s3.amazonaws.com/mevuzokekenojab/how_do_you_write_a_follow_up_email_after_an_interview.pdf
    • https://s3.amazonaws.com/putelekireza/bosevotarirejiwujipiz.pdf
    • https://s3.amazonaws.com/fatisake/vekkali_amman_hd_video_songs_free.pdf
    • http://sesugemedolaf.rf.gd/merchant_of_venice_summary_act_3_scene_5.pdf
    • http://vaxikexuso.rf.gd/42451246295.pdf
    • http://nilovumilof.epizy.com/87541415799.pdf
    • https://s3.amazonaws.com/vobuturinivi/zemoris.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f038.bin
d891c861ead894d5684928ab51a29f60df5b28ecab32087e6109f1973b2f4a48
pdf-font-stream PDF embedded font (sfnt) at offset 0xF038 117944 bytes
font_01_sfnt_off00024f58.bin
1383908fdc15b8f465230c6838337501199a380a33a0442d90c5e14bd6690078
pdf-font-stream PDF embedded font (sfnt) at offset 0x24F58 5420 bytes
font_02_sfnt_off000261ed.bin
f827f8ae523bc4d530eac82674a391f85fa85abdb66cac4b448e198ecf48fba5
pdf-font-stream PDF embedded font (sfnt) at offset 0x261ED 10604 bytes