Malicious PDF — malware analysis report

Static analysis result for SHA-256 07b5131cff7ce3d6…

MALICIOUS

PDF

109.5 KB Created: 2021-03-20 09:39:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 364ae9dec53728529598c487b169e792 SHA-1: 1c928e4c6100377605504abdcf859dc003e823ab SHA-256: 07b5131cff7ce3d6d586875f550d8f024bb74554a860d899f9c4c48079d7f499
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, 'lozipotod.ru', which is likely used to host a malicious payload or phishing page. No scripts were extracted, but the presence of the malicious URI and the high ML score indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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=lose+1+turn+weather+painter+ruling
    • https://vafumesaz.weebly.com/uploads/1/3/4/5/134589630/6fcd28da4eea.pdf
    • http://zibenavepasapep.iblogger.org/dugewaxikejobovigawiveva.pdf
    • https://fusajebotiv.weebly.com/uploads/1/3/4/3/134320253/0359143b.pdf
    • https://jemikarabon.weebly.com/uploads/1/3/0/8/130815017/5308991.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/temujonuwu/how_do_i_reset_my_serta_remote.pdf
    • https://uploads.strikinglycdn.com/files/58a8bed3-364b-48f8-b1ed-7d6e7279ea54/nolakulawogonugujijum.pdf
    • http://votatabebunika.rf.gd/83776253300.pdf
    • https://s3.amazonaws.com/gurafoga/60497612032.pdf
    • https://680e7e7f-99bb-4309-8a01-ecc910dc7690.filesusr.com/ugd/717a42_11aae0f4216b48caa9e3359dfce228ad.pdf?index=true
    • https://s3.amazonaws.com/xewamejixolefaj/gubagekolaberobip.pdf
    • http://zaramapowo.rf.gd/70601062903.pdf
    • https://uploads.strikinglycdn.com/files/f6110cd1-811d-4213-91d5-f243464b4481/how_much_salary_information_technology.pdf
    • https://uploads.strikinglycdn.com/files/d29793d6-452b-43fe-aad5-b2cbc41a88d1/tom_clancys_rainbow_six_siege_cross_platform.pdf
    • http://vemewef.rf.gd/12985174961.pdf
    • https://0e01c86c-6ad9-43de-bc04-b8819f410213.filesusr.com/ugd/73c254_5e15f52db48b44599e640138996efbdd.pdf?index=true
    • https://uploads.strikinglycdn.com/files/8fb258e0-ef03-4ca3-a5a3-4c8a25ba2583/kezelofonuxarapavilenid.pdf
    • https://87b84290-c0b3-4c73-97a1-3d59c64c3f69.filesusr.com/ugd/c638b7_d1db4f1e44dd44f0a8788e3981da9743.pdf?index=true
    • https://uploads.strikinglycdn.com/files/ce6f45d9-c24d-4b0c-ae61-e48168909bca/where_to_find_the_bolt_action_rifle_rdr2.pdf
    • http://vumafovixono.rf.gd/kaspersky_antivirus_full_version_with_key.pdf
    • http://nunitew.rf.gd/87596217065.pdf
    • https://s3.amazonaws.com/bexolamabad/yakuza_5_ps3_trophy_guide.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_off00017241.bin
c91b7bf977ac949988c800164cf4a54c49c6b447720a67ac7a13f9d6112c3c1b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17241 5164 bytes
font_01_sfnt_off000183eb.bin
c86c572ce3a95c07bae4f4ce38b0703fc1faaf5043e213b4405f61a631b8643a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x183EB 10856 bytes

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