Malicious PDF — malware analysis report

Static analysis result for SHA-256 f69675df582f69c0…

MALICIOUS

PDF

79.0 KB Created: 2021-03-27 17:35:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-25
MD5: d7b3473501e49860f4840128afc35796 SHA-1: fcb30a1e68f3cb742c8ece5e7f6699dadc85902e SHA-256: f69675df582f69c03366d9f63936b9619c21bebaeec38f01219062a9381fe25a
124 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it is a link farm on disposable hosting, with multiple external URIs pointing to potentially malicious domains. The ML classifier and ClamAV detection strongly suggest malicious intent. The document body, though heavily obfuscated, appears to be a lure related to file conversion, directing users to a URL that likely serves a malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6520

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://bologen.ru/award?keyword=psd+to+pdf+free+converter PDF link annotation
    • http://wedipum.mygamesonline.org/zevegurav.pdfIn PDF document text
    • http://zapixexarepol.medianewsonline.com/fopexikigasedosatenunat.pdfIn PDF document text
    • http://manidat.sportsontheweb.net/rusubeb.pdfIn PDF document text
    • https://fidojosamesevuf.weebly.com/uploads/1/3/4/5/134594598/rumukelifizo.pdfIn PDF document text
    • http://sutivebako.iblogger.org/pisanivekove.pdfIn PDF document text
    • http://bovewitavivebu.getenjoyment.net/tapepajuzabira.pdfIn PDF document text
    • https://zizojatemizowen.weebly.com/uploads/1/3/4/0/134016780/ligaletulejuvir_pujewobuzin_nipatugur.pdfIn PDF document text
    • http://adr-media.work/bavefiwokoborupalvxc1.pdfIn PDF document text
    • https://xesaranit.weebly.com/uploads/1/3/2/6/132696194/7878294.pdfIn PDF document text
    • https://goginaderexikez.weebly.com/uploads/1/3/5/3/135306094/kokew.pdfIn PDF document text
    • http://fumumowovufa.mywebcommunity.org/powozaxusidipezaxilevu.pdfIn PDF document text
    • http://twoup-viktoria.online/85509434439i197c.pdfIn PDF document text
    • http://lofajemami.sportsontheweb.net/moxufalesefepiwirebawowo.pdfIn PDF document text
    • http://bibivire.mygamesonline.org/caperucita_roja_de_los_hermanos_grimm_original.pdfIn PDF document text
    • http://everydayy.fun/simplehuman_shower_dispenser_instructions54c3a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/mekonulegipero/66486629506.pdfIn PDF document text
    • https://s3.amazonaws.com/potofaw/kanekodepufufezuta.pdfIn PDF document text
    • http://petojijoxura.onlinewebshop.net/murachs_mysql_3rd.pdfIn PDF document text
    • http://gufopexolax.myartsonline.com/automatic_water_pump_controller_circuit.pdfIn PDF document text
    • http://bixogonabu.epizy.com/hedwig_s_theme_sheet_music_violin.pdfIn PDF document text
    • http://zividovapajawuv.epizy.com/jenkins_freezer_paper_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/wazagidonux/hs_code_list.pdfIn PDF document text
    • https://s3.amazonaws.com/negonanopix/deadmau5_feat._chris_james_-_the_veldt_letra.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011385.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11385 4968 bytes
SHA-256: 9228947faea9d4e5a46718ad486204d0908429d1221784e4f46b6adce74e879d

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