Malicious PDF — malware analysis report

Static analysis result for SHA-256 967882d60ce5b540…

MALICIOUS

PDF

73.8 KB Created: 2021-03-16 16:49:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 03ffde4d40fed884684552b63dae70cb SHA-1: 947a1d8bed1460de860a611902b24f2a70e645a2 SHA-256: 967882d60ce5b540c06309d5fec913202d701ce3888cbcbd974d13964686dc62
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a URL that offers a download for 'mortal kombat x apk'. This, combined with the ML classifier and ClamAV detection, strongly suggests a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains references to the game and the wkhtmltopdf tool, further supporting the lure. No scripts were extracted, but the presence of external URIs indicates a potential download or redirection to a malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://botokaw.ru/wix?keyword=mortal+kombat+x+apk+download+uptodown
    • http://eyebrowthreadingdallastx.com/50cc_moped_service_costue3p7.pdf
    • http://vigastlens.xyz/cestina_express_2j1e27.pdf
    • http://covidcapsule.world/19671969538cja51.pdf
    • http://lijonotogi.scienceontheweb.net/emglo_air_compressor_model_k.pdf
    • https://kasexesupa.weebly.com/uploads/1/3/1/4/131437862/timisejufetagaj.pdf
    • http://fb-ig-copyright.com/vuvezuxedatalikasudewiv3mat.pdf
    • http://uuuuull.space/sonicwall_tz_205_manual2raak.pdf
    • http://ladirojenovezoj.mygamesonline.org/ford_e350_cargo_van_for_sale.pdf
    • http://heleogose.online/sda_church_heritage_test515kr.pdf
    • https://mabunamu.weebly.com/uploads/1/3/4/9/134902385/rijizapetabub-wafixex-moxezipakas-juzusoloredufom.pdf
    • http://forajadafogaxuv.medianewsonline.com/we_are_going_on_a_bear_hunt_book_cover.pdf
    • http://fuvisetitisenon.mypressonline.com/disney_customer_service_training_manual.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/nodetuxapabara/63876586153.pdf
    • https://40785fcd-1e5e-4316-9306-5db1d5795eae.filesusr.com/ugd/2f07a1_f31c77a07ad04c83a09daaec45f5be59.pdf?index=true
    • https://s3.amazonaws.com/gisujubolidine/wufofiletotelexadotiso.pdf
    • https://s3.amazonaws.com/mipizaju/niwadoropaz.pdf
    • https://e97408dc-4b05-4e3b-9f19-f4127feb49ef.filesusr.com/ugd/a42eed_f0c5a8d9fed64457a86fecdde48b97cb.pdf?index=true
    • https://s3.amazonaws.com/kefiperizonofu/casino_game_rules.pdf
    • https://3add71bf-43a8-4423-8ec4-2ea06ca34985.filesusr.com/ugd/5ecadc_9aa92b3b0566406baf1e58269d8d11d5.pdf?index=true
    • http://fuxunowelujuxa.atwebpages.com/90625661305.pdf
    • https://s3.amazonaws.com/wejuvono/nukapanedodogobefave.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_off0000e2cf.bin
2a859d427ffcf63b7c45609aab52ac68c28dbcbc0708c1996760a887e5ff5d37		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE2CF 5296 bytes
font_01_sfnt_off0000f4d0.bin
fdd7b7dc3353660fb89038a71313b7a1bd9476a973dd2cb7d447412f25bc77e8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF4D0 10936 bytes

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