Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed6e6b522d8e5bb9…

MALICIOUS

PDF

81.8 KB Created: 2021-04-16 16:54:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3bfab43cc4c178184e9288999f390723 SHA-1: 70c3891f434347ae4cce52f0a1a6d0defa5ee62b SHA-256: ed6e6b522d8e5bb9d048f27ea28c5eb42c92896a8e3eb4634c1c903f1a4fb29c
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an external URI pointing to 'botokaw.ru', which is a strong indicator of a phishing or malware distribution attempt. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it is designed to redirect users to 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://botokaw.ru/strik?utm_term=silence+of+the+lambs+never+says+hello+clarice
    • https://cdn.sqhk.co/zisenusaf/g91hjTy/91105557795.pdf
    • http://nunagese.iblogger.org/what_is_the_default_password_for_linksys_e1200.pdf
    • http://kozidozilujivox.getenjoyment.net/fedex_store_jobs_san_diego.pdf
    • http://fepaporipevari.mypressonline.com/lowrance_elite_5_hdi_gps.pdf
    • http://dovoxijego.iblogger.org/what_are_meta_description_tags.pdf
    • https://cdn.sqhk.co/fugovigul/igjgjf2/52591822939.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/wazotojemov/7553431293.pdf
    • https://s3.amazonaws.com/rimejiguvif/tf2_trade_bot.pdf
    • https://uploads.strikinglycdn.com/files/aae6a3df-55a9-447d-a114-906ca6d685ed/maus_spiegelman_review.pdf
    • https://uploads.strikinglycdn.com/files/4552bfc2-d6dc-43b6-876b-d7f1f9de00fc/6992444717.pdf
    • https://uploads.strikinglycdn.com/files/c25058e0-c671-4fd5-a855-b51ba53819b1/brandy_melville_size_chart_medium.pdf
    • https://uploads.strikinglycdn.com/files/6eeb85c9-826b-4505-9057-92acffcdbcec/dixuvumuruwexufo.pdf
    • https://uploads.strikinglycdn.com/files/af241f9f-b7d3-41f5-9fa2-6722dc4bb590/setting_travel_limits_on_genie_2024.pdf
    • https://uploads.strikinglycdn.com/files/967e3001-43c4-4dbe-85f0-50f024a014bc/92719426980.pdf
    • http://burabovedi.rf.gd/bridget_jones_baby_soundtrack.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_off0000f4e9.bin
65fa20b3384499cad16c84a2c9d062a0f258e62c5e83a29aaadcad0eee3c8e9b
pdf-font-stream PDF embedded font (sfnt) at offset 0xF4E9 5312 bytes
font_01_sfnt_off000106c1.bin
f4021ee8fe0c0432e74a59741a70d2a8968df8c639446331715ba4bc7afbe9ba
pdf-font-stream PDF embedded font (sfnt) at offset 0x106C1 11132 bytes
font_02_sfnt_off00012c78.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361
pdf-font-stream PDF embedded font (sfnt) at offset 0x12C78 4324 bytes