Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e46a0cea7e7889e…

MALICIOUS

PDF

78.2 KB Created: 2021-04-05 15:16:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 389d91daf90111275b46e6bc5e13f461 SHA-1: 7853dfe602671a9f421b3778a3e6a7ac80cd344e SHA-256: 3e46a0cea7e7889e78bef162ae0c987570821bbcfa4495dfa6c28f883e3734e6
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document body, though heavily obfuscated, contains text related to a PDF title and authoring application, suggesting a lure. The embedded URL points to a suspicious domain, likely intended to host a malicious payload or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://soxebez.ru/award?keyword=la+pasion+segun+antigona+perez+pdf
    • https://sanokigoj.weebly.com/uploads/1/3/4/8/134863934/773ec1.pdf
    • http://vclean-sale.shop/how_do_you_fight_climate_changezd80i.pdf
    • https://xebolefijepipol.weebly.com/uploads/1/3/0/7/130739937/zawozazu_rupuberuxazusu_dodufaruk_vulatatirig.pdf
    • http://wamuwosola.mygamesonline.org/vavotokubij.pdf
    • http://cuzinfo.ru/sezekodif68zob.pdf
    • https://bigevavez.weebly.com/uploads/1/3/4/0/134016854/4741861.pdf
    • http://comforfemj.fun/slay_the_spire_whalepr2xv.pdf
    • https://lumirofelefepo.weebly.com/uploads/1/3/4/8/134892557/6994863.pdf
    • http://akmurzina.com/fupupuvemaduwudigixu0sqqz.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://judiserod.onlinewebshop.net/jisiguxosuduribi.pdf
    • https://uploads.strikinglycdn.com/files/eaa9cb97-e529-416f-8b3d-eb4a85f1bf27/23370499941.pdf
    • https://uploads.strikinglycdn.com/files/5078dcad-b938-4750-b7c9-910f0a14ec08/games_like_nancy_drew_her_interactive.pdf
    • https://s3.amazonaws.com/wewuxuviwar/password_protect_multiple_worksheets_in_excel.pdf
    • http://rosevasejila.myartsonline.com/nifed.pdf
    • http://lawiferow.myartsonline.com/punadisibumutaxatumigifut.pdf
    • http://dapizodipe.myartsonline.com/qaseedathul_burda_malayalam.pdf
    • https://s3.amazonaws.com/xafaxotaful/6667005274.pdf
    • https://uploads.strikinglycdn.com/files/52b81f13-52f8-4b07-81d4-c1aa114215d9/26549618997.pdf
    • http://bitujiduruv.myartsonline.com/exterior_angles_of_a_triangle.pdf
    • https://s3.amazonaws.com/jozetej/adobe_illustrator_logo_templates_free.pdf
    • http://wififeju.atwebpages.com/download_acrobat_reader_to_edit.pdf
    • https://s3.amazonaws.com/nijosinizo/4457642130.pdf
    • https://s3.amazonaws.com/tobito/1988768132.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_off0000f1a3.bin
17efa5aa46c5145df5f5b99a3c0c749fa4a36bfb7565f91b1e0c8b14fbd59da7
pdf-font-stream PDF embedded font (sfnt) at offset 0xF1A3 5168 bytes
font_01_sfnt_off00010352.bin
fddb5e208687a3e68bedfa129990e359ade662a0a3af2ebe3c545bedd3252145
pdf-font-stream PDF embedded font (sfnt) at offset 0x10352 11628 bytes