Malicious PDF — malware analysis report

Static analysis result for SHA-256 5868b080a2137f04…

MALICIOUS

PDF

71.7 KB Created: 2021-03-22 16:14:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f6eac440ea38d5ab792d89d70876c059 SHA-1: 1b45a54f1e1aa6b03b9c3bbe8ce2ab3da1ee35e9 SHA-256: 5868b080a2137f044255c9c4c65612a2486af2be46b2c29c20d6dcfa8d4b160a
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to a product manual, consistent with social engineering tactics.

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://bologen.ru/wix?keyword=iei+keypad+212r+manual
    • https://static.s123-cdn-static.com/uploads/4405179/normal_5fc6afb6535a2.pdf
    • http://vk-settings-change.online/harry_potter_and_the_order_of_the_phoenix_book_2003_first_editionuaw0v.pdf
    • https://cdn.sqhk.co/jowapezo/vjdGgj0/geometry_dash_scratch_hacked.pdf
    • http://dalnoboyi.xyz/widojujibafgjem.pdf
    • http://itnegozio.info/984150892880tspj.pdf
    • http://acupofjacob.com/rugusebojj7avh.pdf
    • https://cdn.sqhk.co/mesodimeduje/XY7kJal/zulonitoxovasugekaruwuko.pdf
    • https://cdn-cms.f-static.net/uploads/4448986/normal_5fd8e6bda1b49.pdf
    • https://static.s123-cdn-static.com/uploads/4409114/normal_5fdddf4fcd234.pdf
    • https://cdn-cms.f-static.net/uploads/4408851/normal_601f8416c454f.pdf
    • http://golden-bridge.pro/what_was_the_impact_of_lincolns_proclamation_of_amnesty_and_reconstructiono09k3.pdf
    • https://cdn-cms.f-static.net/uploads/4457318/normal_60274315ca8d6.pdf
    • https://static.s123-cdn-static.com/uploads/4419626/normal_5fcf741a09a44.pdf
    • https://static.s123-cdn-static.com/uploads/4415309/normal_5fc5d37d54210.pdf
    • https://static.s123-cdn-static.com/uploads/4444095/normal_5fc6aaeb4e011.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/2590b507-c2a5-46a5-bea5-f7290e74555a/wosuvoxebunoposuruma.pdf
    • https://s3.amazonaws.com/sukedil/6724982987.pdf
    • https://uploads.strikinglycdn.com/files/95729c0a-4369-4de5-8c96-487c618e1d22/balexitosulapafekileba.pdf
    • https://s3.amazonaws.com/xafaxotaful/what_is_pre_scientific_management_theory.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_off0000cd03.bin
6c33324af8c95ba72238e6fbd3b9f2ebc876da4a40bf7bc64b1a7460b640a0a2
pdf-font-stream PDF embedded font (sfnt) at offset 0xCD03 4904 bytes
font_01_sfnt_off0000dd8e.bin
578ab8b0db996356e31ca24bdcc2cac5c938877d83bf2ff3d341858b3d6d5082
pdf-font-stream PDF embedded font (sfnt) at offset 0xDD8E 10784 bytes
font_02_sfnt_off00010254.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
pdf-font-stream PDF embedded font (sfnt) at offset 0x10254 4324 bytes