Malicious PDF — malware analysis report

Static analysis result for SHA-256 be07240a51ee2933…

MALICIOUS

PDF

77.4 KB Created: 2021-03-30 04:58:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2ef48a6342609da2e02ee9155e4785db SHA-1: 90ca44bc909630489d0cd0642f59dc1590b76c38 SHA-256: be07240a51ee293348d026036c970e9e9f762dd80106a213e2c43a55222f8942
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 assigned a high probability of maliciousness. An external URI pointing to 'lozipotod.ru' was extracted, which is likely used for phishing or malware distribution. The document body is heavily obfuscated, but the presence of an embedded URI strongly suggests a malicious intent to redirect the user to a harmful site.

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://lozipotod.ru/wix?keyword=cross+breeding+games
    • https://cdn.sqhk.co/rogolafu/bBiANWu/26134549854.pdf
    • https://cdn.sqhk.co/lewiwifo/wT3ieif/usa_made_buttons.pdf
    • https://cdn.sqhk.co/livatunozasu/9FnSKnL/84662035711.pdf
    • https://cdn.sqhk.co/letinumi/s7zmoih/gerezesiwejuwutaz.pdf
    • https://cdn.sqhk.co/lebogomatoze/hcggjdv/fidineliwuxetuzumorin.pdf
    • https://cdn.sqhk.co/sesakiwewe/hdhh0Ua/zombie_commando_mod_apk_unlimited_money_and_diamond.pdf
    • http://vebejisidag.66ghz.com/anti-_bullying_act_of_2013.pdf
    • http://vewazanujuwa.22web.org/nunogajaruwimol.pdf
    • https://cdn.sqhk.co/mixaluwekitu/jbvMf1v/nobewatovu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://vilujemes.rf.gd/rotemidalejoke.pdf
    • https://uploads.strikinglycdn.com/files/4aea35ad-1ee7-4c7e-9fcb-6fff065c021d/tanabazokok.pdf
    • https://uploads.strikinglycdn.com/files/62bcc5b4-9c0e-41e8-ad0a-c6a5d40e46ec/89303394872.pdf
    • http://dodugan.rf.gd/87707601622.pdf
    • https://s3.amazonaws.com/feseni/7722385377.pdf
    • http://xagaketukije.rf.gd/bgrs_relocation_manual.pdf
    • https://uploads.strikinglycdn.com/files/c1dc7899-782f-4782-b98f-2c5ed01ab5c8/arduino_uno_fft_spectrum_analyzer.pdf
    • https://uploads.strikinglycdn.com/files/09a48f1b-2d26-4c7a-b2c0-90e8a375bc9e/90845329164.pdf
    • https://uploads.strikinglycdn.com/files/a1087e97-65c1-4434-aa85-82f1a763f045/dantes_inferno_game_walkthrough.pdf
    • https://s3.amazonaws.com/pokorevalaxex/xopigeganexalofoxif.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f17b.bin
589a8fd703d90af344cd5eeec662c7bbf0c662c8aab2045b9e086905631274fc
pdf-font-stream PDF embedded font (sfnt) at offset 0xF17B 5160 bytes
font_01_sfnt_off000102e7.bin
9a3bec19eab1eaac432ae0c18654660c5767346426ff0033a4a5fb48aedf2344
pdf-font-stream PDF embedded font (sfnt) at offset 0x102E7 10800 bytes