Malicious PDF — malware analysis report

Static analysis result for SHA-256 5160e098a399c945…

MALICIOUS

PDF

79.4 KB Created: 2021-03-16 18:47:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3c382fa8f50ae4512a7fefa6dacbec32 SHA-1: ab221fea8ac9a119ab8a93bf2298f73260d6d8f3 SHA-256: 5160e098a399c945b0c0899ea43974fdab71021e0e2c47f4d21e2d7fd571bffb
96 Risk Score

Malware Insights

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

The file is a PDF document detected as malicious by ML classifiers and ClamAV. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing or malware distribution site. The presence of external URIs within the PDF structure strongly suggests an attempt to trick the user into navigating to a malicious web resource.

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://mezovuduw.ru/strik?utm_term=smartest+man+in+the+room+film
    • http://kutatit.getenjoyment.net/37862128307.pdf
    • https://cdn.sqhk.co/nowonipewo/heY3ZEL/warzone_tracker_cheater.pdf
    • http://detozube.scienceontheweb.net/34418669614.pdf
    • https://cdn.sqhk.co/terasovo/jiYejj2/free_classic_rock_ringtones_download.pdf
    • http://katipef.medianewsonline.com/dufagupedoworezopi.pdf
    • http://ganoget.scienceontheweb.net/zalolawidaratano.pdf
    • http://tufuwavaziga.mygamesonline.org/luxilakokafuj.pdf
    • https://cdn.sqhk.co/gamakokub/pXjesif/xorujavetujoj.pdf
    • http://servisvds.ru/60209099854lmexu.pdf
    • https://cdn.sqhk.co/tibakekavero/ehfgjha/jopefaj.pdf
    • http://netopodimamo.mywebcommunity.org/how_to_write_industrial_visit_report.pdf
    • http://gutibefatidag.medianewsonline.com/market_leader_intermediate_business_english_course_book.pdf
    • http://xexapitanegis.getenjoyment.net/what_color_were_ancient_romans.pdf
    • http://sokfresh.fun/tom_clancy_rainbow_six_siege_ps4_single_player4qukt.pdf
    • http://pink-echo.club/lakshmi_sahasranamatxkqx.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://4de1274e-a26b-4e71-a0d1-d86f0cfee7ee.filesusr.com/ugd/ee4d88_6beaac86c6f544cbb70db94ad48480f1.pdf?index=true
    • https://73b3f487-90f5-41a6-bf44-750372f72efd.filesusr.com/ugd/39e8d0_713b168059ac4949a54d0a4684d58fd8.pdf?index=true
    • https://746420f6-3007-491b-ba72-fd43be5094e5.filesusr.com/ugd/277b62_de809d5194094bb4bbc50586f4cf294d.pdf?index=true
    • https://53860ffb-5975-4088-b838-5c82367c2827.filesusr.com/ugd/0d2908_9b7f9b24daf544b09e1741ac9b0bbd7f.pdf?index=true
    • 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_off0000faba.bin
c5455d82a473bbcc5c4127138b5e9b1cad7160ace5e72eb1c5f3128ea913af14
pdf-font-stream PDF embedded font (sfnt) at offset 0xFABA 5108 bytes
font_01_sfnt_off00010beb.bin
ee3035dae790ab09481ba8c5344edce3e4722b16e7ceaf0056c87499b6108032
pdf-font-stream PDF embedded font (sfnt) at offset 0x10BEB 10932 bytes