Malicious PDF — malware analysis report

Static analysis result for SHA-256 69e968d9fdd80f1f…

MALICIOUS

PDF

69.7 KB Created: 2021-03-19 23:38:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: be838e75903e5d4cd83292734c039008 SHA-1: 4c23141e6361c80ddd9acad9f29c722b60d94272 SHA-256: 69e968d9fdd80f1f00d735b450eaf76edf598eb0283bb61f4b981b8622fe7478
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a malicious domain, disguised as search results for a popular game. ClamAV and ML classifiers strongly indicate malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the PDF structure and embedded URI are sufficient indicators of a malicious lure.

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://ponafet.ru/wix?keyword=roblox+boho+salon+answers+for+designer
    • http://kovamuwaropepu.getenjoyment.net/how_to_format_a_research_paper_chicago_style.pdf
    • https://cdn.sqhk.co/rowagana/bgjm1jc/fractions_and_decimals_worksheets_kuta.pdf
    • https://ditezuni.weebly.com/uploads/1/3/5/3/135350757/runixevorukuwuvupap.pdf
    • https://cdn.sqhk.co/sofopiro/2olRgdI/49374792941.pdf
    • http://bawazofo.getenjoyment.net/3180250667.pdf
    • https://cdn.sqhk.co/womafafowix/p0lIMzd/50334716054.pdf
    • https://wemupubipu.weebly.com/uploads/1/3/5/3/135331653/rakugerasuti_wikijo.pdf
    • https://cdn.sqhk.co/buvaboda/ihg61Ka/gebukozorezukibamunitut.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/810e7e53-4e31-4c1c-a2a8-6633fe20faf8/man_of_constant_sorrow_mandolin_chords_and_lyrics.pdf
    • https://uploads.strikinglycdn.com/files/56a3f73a-4cff-4c94-97ea-ec1104c8c351/24918043206.pdf
    • http://kofaxafogi.myartsonline.com/broom_2020_effective_public_relations.pdf
    • http://rukukuwozar.epizy.com/easy_piano_christmas_carols.pdf
    • http://senajukuwizef.epizy.com/desewibapatusodaluju.pdf
    • http://pivotigapux.rf.gd/67124785315.pdf
    • https://6eed613e-cbae-405e-b458-9655ef9033f8.filesusr.com/ugd/e4f6f0_71fc5bab3a494b2da4432b2bf7e708bb.pdf?index=true
    • https://1ac5d900-0c69-4f12-8b1d-4e209472b8d2.filesusr.com/ugd/828753_2840b59f88b54491a1dc5ac6e7a4c086.pdf?index=true
    • http://fedokow.rf.gd/advanced_excel_course_online_free.pdf
    • https://uploads.strikinglycdn.com/files/30701a4a-c6da-4ba8-82f0-0312afb9f3ff/futepe.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_off0000d48a.bin
71d60c3b5a91f9059fa156986af7217af8774d0d67b0541892a467482d26c326
pdf-font-stream PDF embedded font (sfnt) at offset 0xD48A 5476 bytes
font_01_sfnt_off0000e73d.bin
089646076b8c1ce0feab939a32f40357325694b3b2bca429d444579e3d4b74d7
pdf-font-stream PDF embedded font (sfnt) at offset 0xE73D 10176 bytes