Malicious PDF — malware analysis report

Static analysis result for SHA-256 029cd4a131abaeca…

MALICIOUS

PDF

124.9 KB Created: 2021-03-18 15:45:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: 23c30eeb5b34f0d36797e17137697650 SHA-1: 90e21fc9e2dd080c2c974f8dfbbb11b5c2a18c96 SHA-256: 029cd4a131abaeca70adbb6e1810b5867db6a33cdc9b340c98f743b4b798eb92
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is also listed as an IOC. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site, potentially for credential harvesting or further payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6502

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://xajibur.ru/award?keyword=the+book+of+esther+kjv+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4408991/normal_604ba937eec66.pdfIn PDF document text
    • http://rifaxot.22web.org/sailor_moon_manga_descargar.pdfIn PDF document text
    • https://cdn.sqhk.co/dipewoduge/ib3SNX3/6570681565.pdfIn PDF document text
    • http://nepifenimet.iblogger.org/raxedojosefidesefoxefubax.pdfIn PDF document text
    • https://cdn.sqhk.co/jagugide/uGKhhbZ/stunt_bike_freestyle_mod_apk_new_version.pdfIn PDF document text
    • https://cdn.sqhk.co/wijelukifap/gggdhiu/joniwekatemikuvalopen.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424376/normal_5fda62e511395.pdfIn PDF document text
    • https://cdn.sqhk.co/niririga/hfgdife/samsung_voice_recorder_settings_play_continuously.pdfIn PDF document text
    • https://cdn.sqhk.co/rinovizifim/gehbHNC/shiny_leather_pants_fashion_nova.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://voponimofu.rf.gd/what_happens_when_you_land_on_free_parking_in_monopoly_electronic_banking.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ce9fc00-7df0-4294-b2cd-c618e1ae351e/we_can_remember_it_for_you_wholesale.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b6297964-75c2-44d1-9763-88d683668807/how_to_reset_motorola_surfboard_modem.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4576c81a-f49d-41b7-b23f-80825221de8f/what_happens_at_the_end_of_harry_potter_book_6.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d95c007b-16a0-410b-a18b-eb0ecff5e7e4/65151007160.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad9be0fa-1e51-4ece-9712-6827caf1d24c/nelowigesolapupev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/038977a0-552f-4266-9317-50622912a6dd/71868580178.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b2c7c7cc-851d-4448-8464-32538f03a408/cuanto_son_150_gramos_de_mantequilla_en_cucharadas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/656d69df-f625-475a-9caa-f23f1d2f559d/sefove.pdfIn PDF document text
    • https://s3.amazonaws.com/tixeligufokup/57297374169.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/48fe9e77-d6fe-4a78-aedc-e68824cfcbad/dell_optiplex_gx620_max_ram_speed.pdfIn PDF document text
    • https://s3.amazonaws.com/wewuxuviwar/guelph_real_estate_market_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/687ad6c0-c8f2-4cc9-af8c-01a567b082db/how_light_therapy_works_for_jaundice.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00019c55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19C55 4812 bytes
SHA-256: 65190d2e87fb76ce10767a949b03f9a02b83908c946cbad1e5cf3a26be690e19
font_01_sfnt_off0001accc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1ACCC 16656 bytes
SHA-256: c442e64da259d824ac5cd4461d21b49259b7dfb6244ab513d43cf4fd9a4f099e
font_02_sfnt_off0001e0a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E0A3 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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