Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f074d9466e0e340…

MALICIOUS

PDF

85.0 KB Created: 2021-04-06 17:39:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3bf187be6080ac31ddfbaee56e7c4b06 SHA-1: 23643663692b82d714461564940161d1e346f1cd SHA-256: 2f074d9466e0e340da312202d37935489b5200ab3a2bfd0310f56b041d46a3f7
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, identified by ML classifiers and ClamAV as malicious. The document body, though heavily obfuscated, suggests a lure related to a 'basketball challenge', likely intended to trick users into visiting the malicious URL. This pattern is consistent with phishing or malware distribution campaigns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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=worlds+basketball+challenge+unblocked
    • http://ledimpress.biz/pexitajwbaa.pdf
    • http://about-central.com/75313527200lulb7.pdf
    • https://cdn-cms.f-static.net/uploads/4367311/normal_603a454c66fe0.pdf
    • https://varozifan.weebly.com/uploads/1/3/0/7/130740200/30e3a0e.pdf
    • https://somalinoduka.weebly.com/uploads/1/3/5/3/135392385/siduzujokovamuzevep.pdf
    • https://static.s123-cdn-static.com/uploads/4443608/normal_5febfa9deb6c7.pdf
    • http://basiditdcf.space/relion_30g_ultra_thin_lancets_200-cto10s6.pdf
    • https://cdn.sqhk.co/jutafegobexe/bchgHgh/ronabodirajolofis.pdf
    • http://mishabelle.ru/analisis_literario_del_libro_como_agua_para_chocolatejeolw.pdf
    • https://cdn-cms.f-static.net/uploads/4489595/normal_600ca59cad447.pdf
    • https://cdn-cms.f-static.net/uploads/4384649/normal_60687609e3b03.pdf
    • https://cdn-cms.f-static.net/uploads/4475577/normal_5fd350e85f427.pdf
    • http://dogusiwimukames.iblogger.org/nigoravigusixenazipov.pdf
    • https://cdn.sqhk.co/totudavomud/ihajd4b/alien_shooter_2_reloaded_cheat_engine.pdf
    • https://zanobevaduj.weebly.com/uploads/1/3/2/6/132682049/bafibekejakolutomow.pdf
    • https://buranujepexu.weebly.com/uploads/1/3/4/3/134339299/7660812.pdf
    • https://cdn.sqhk.co/vusutazomaga/jggh0gd/13995741416.pdf
    • http://hiziryigit.online/plant_systematics_simpson__1_227fle2v.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://pusesexi.rf.gd/mujonejapirevinizosawor.pdf
    • http://jonemif.epizy.com/homemade_education_malcolm_x.pdf
    • https://30b7a97f-6117-4fff-8876-4b3c2220b6c6.filesusr.com/ugd/15cd4d_6203fb8e99af43c98b4cabe7e78106c4.pdf?index=true
    • https://bd15da75-ee01-4ad3-8b22-4778d9929f37.filesusr.com/ugd/1abc29_428fb9ccb7694b099afc3b54c2a093b8.pdf?index=true
    • https://37523d11-79cf-4eb3-ada4-f05de57c71ee.filesusr.com/ugd/275374_5a049b16f81345a68a04d7c70d634341.pdf?index=true
    • http://kanabobexodu.epizy.com/80982621882.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_off00010cff.bin
f8aa103328cd74e6c0b2d9067c08940682de342666f89bb070dc0e39de7c9b54		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10CFF 5420 bytes
font_01_sfnt_off00011f6d.bin
60d606275f7cea2daf6f40615151d37f1695be9f417ecc8c1a8f6b07a01e331f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11F6D 11676 bytes

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