Malicious PDF — malware analysis report

Static analysis result for SHA-256 318594abc9f0444f…

MALICIOUS

PDF

75.9 KB Created: 2021-03-27 14:54:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 312ee467eda8d251c9495bf5a30cd762 SHA-1: b02b1d91832eb8e38cb0e17133faa0a56dce28be SHA-256: 318594abc9f0444fd418c839008fc9e6460c990af1ae10b7c688588c7747640e
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI that redirects to a malicious domain, likely intended to host phishing content or further malware. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to trick users into visiting a malicious site, potentially as part of a phishing campaign.

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://resalured.ru/wix?keyword=wolf+of+wall+street+parents+guide
    • http://nigavereke.mygamesonline.org/nabivumuwepelutobaporega.pdf
    • http://ruwemipuwev.mypressonline.com/what_is_shape_in_interior_design.pdf
    • https://cdn-cms.f-static.net/uploads/4385620/normal_6047ac719e0b1.pdf
    • http://mamefumiwuto.mywebcommunity.org/10063475533.pdf
    • https://cdn.sqhk.co/kupawusel/khgf2jd/bizegakifabiga.pdf
    • https://cdn.sqhk.co/wajinevisu/OWjeZii/hard_time_prison_sim_vip_upgrade_apk.pdf
    • http://ginalupajeriw.scienceontheweb.net/60824568203.pdf
    • https://cdn.sqhk.co/rirakibugo/hzjKKm6/likivitugojeko.pdf
    • https://cdn.sqhk.co/zafilivopupu/63jcVG8/algebraic_properties_of_equality.pdf
    • https://cdn.sqhk.co/vefapatape/aEhehfZ/teluxanobikijasemaxojiwev.pdf
    • https://cdn-cms.f-static.net/uploads/4366024/normal_6050733526250.pdf
    • http://zeruxejobimal.mywebcommunity.org/kodidipimupojipiw.pdf
    • https://cdn-cms.f-static.net/uploads/4382627/normal_602822ca06e96.pdf
    • http://zespodsvetkoy.site/is_pretty_little_liars_appropriate_for_10_year_olds7gri2.pdf
    • http://santaparker.store/19571363399tg7pw.pdf
    • https://cdn.sqhk.co/reparepoki/Q6eT0ij/t_mobile_senior_plans_2020.pdf
    • https://cdn.sqhk.co/tivinarafuvu/uifghwT/zerumatidaguj.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/66befe1b-fb68-4154-8944-d8ce12000c50/rca_galileo_pro_11.5_digitizer_replacement.pdf
    • https://uploads.strikinglycdn.com/files/149daba5-62f0-40a0-85f6-78907214a8f6/pafofetuketumazidajamora.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_off0000e928.bin
95173f6ef31981f2038f96f1b2e5c901780307ba330eceb2bbe02340d48b39f7
pdf-font-stream PDF embedded font (sfnt) at offset 0xE928 5312 bytes
font_01_sfnt_off0000fb65.bin
0db51dc0c5d836e739e800134e2bf36329ac6f45b20f0c4d774310a0bf4875f7
pdf-font-stream PDF embedded font (sfnt) at offset 0xFB65 11376 bytes