Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7114d116a4a62b4…

MALICIOUS

PDF

74.5 KB Created: 2021-03-23 14:54:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: e54fec5adcbdfb00543ee770a918621b SHA-1: 62c69d5beb930689eb470457945c689646b12fd6 SHA-256: b7114d116a4a62b4a379c127820ed7180ab0163d9c207795b5917c54b31c6a00
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, disguised with keywords related to a budget document. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or to serve a secondary payload. No scripts were extracted, but the presence of external URLs and the document's deceptive nature suggest an attempt to trick the user into visiting a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://lozipotod.ru/award?keyword=bihar+budget+2020+20+pdf+in+english PDF link annotation
    • http://xiredanu.22web.org/blender_2.8_the_beginners_guide_download.pdfIn PDF document text
    • http://wosatonosefenaw.iblogger.org/xagozibupevukepo.pdfIn PDF document text
    • https://cdn.sqhk.co/tumupowe/fdKhe0E/zone_snake_worm_io_new_battle-_guide_winners.pdfIn PDF document text
    • https://cdn.sqhk.co/lilodipu/rVhjjep/silogujowetebafosivolu.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/savukojubusum/79204912696.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ccbc86d6-3da2-49fe-8a2a-15d61dc8bb41/lasipo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7550f8b4-1c5e-4c46-99a9-0b6ce698c031/jumavumidoxufove.pdfIn PDF document text
    • https://s3.amazonaws.com/gonafoziguwewe/10726108049.pdfIn PDF document text
    • https://s3.amazonaws.com/vetamedisoz/electrical_engineer_salary_per_hour.pdfIn PDF document text
    • https://s3.amazonaws.com/dikomavomem/how_to_connect_a_bluetooth_soundbar_to_a_vizio_tv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d3fe02e9-afb4-4907-b90e-c97e3e134bdb/95503982947.pdfIn PDF document text
    • https://s3.amazonaws.com/nimuwet/possessive_adjectives_worksheet_for_beginners.pdfIn PDF document text
    • http://pakafadudu.epizy.com/30453010065.pdfIn PDF document text
    • http://kisitibonadal.rf.gd/thinkorswim_web_based_paper_money_login.pdfIn PDF document text
    • https://s3.amazonaws.com/voxipanovigepiv/10407545887.pdfIn PDF document text
    • https://s3.amazonaws.com/purufiz/harry_potter_book_order.pdfIn PDF document text
    • http://sejofepoga.epizy.com/hearsay_objections_cheat_sheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/329ab21f-7576-4539-b934-4d970d49be10/7216340533.pdfIn PDF document text
    • http://zorufuzelal.rf.gd/61425614088.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e36a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE36A 5768 bytes
SHA-256: fe4a9282425a53fba3b63869fb68f11817c7bfe92b97516788e97c1f611a46a0
font_01_sfnt_off0000f703.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF703 10956 bytes
SHA-256: 743271d35603fd531f6d261e662bf19ed68ae6da5508c78a8adbdab3026d7ee8

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