Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a7fddf5706c1130…

MALICIOUS

PDF

110.9 KB Created: 2021-03-13 17:09:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f8af5e48c469d1e80f6f4c3de2830d7 SHA-1: db866bad28c1b6362544099ba951016ea2ece38c SHA-256: 6a7fddf5706c1130322e238538eeba2a051d38f89315418e1e28f671961acb01
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were extracted, the presence of an external URI and the overall detection suggest a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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/aws?utm_term=ranger%2527s+apprentice+royal+ranger+books+in+order
    • https://static.s123-cdn-static.com/uploads/4490539/normal_5fdd59dcbe6fa.pdf
    • http://test123test.xyz/67697883002a30e0.pdf
    • https://cdn.sqhk.co/temetixufuxi/wZjjias/triumph_thruxton_classic.pdf
    • https://static.s123-cdn-static.com/uploads/4465012/normal_5ff07a3e005e0.pdf
    • http://pelistens.xyz/vida_fitness_official_app_paravwar3.pdf
    • http://tonagruz.ru/binary_options_strategy_60_seconds51l92.pdf
    • http://lnstagramverifiedsbadgesforms.com/mekofexitinobekjst0.pdf
    • http://7lessons.space/musepubuzixefutosg09ot.pdf
    • http://copyright-securityx.com/fisewoperowijulewovr2oxo.pdf
    • http://keto-s1.com/kalezokimexudosg49e.pdf
    • https://cdn.sqhk.co/gogefaman/d12jeLe/355_cdta_bus_schedule.pdf
    • https://cdn-cms.f-static.net/uploads/4405899/normal_603e341e48c14.pdf
    • https://cdn.sqhk.co/baxijaxazixi/gd1Shhp/nolekirarupaj.pdf
    • http://geesecam.com/bukunmi_oluwasina_easy_easy_audiozejzn.pdf
    • http://hotel-engels.ru/63294515815qkx77.pdf
    • https://cdn.sqhk.co/letareximo/CjgQqhc/crazy_zombies_9._0_snokido.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/712fa7fe-c260-4c76-8c06-e0caa43c4b1c/zejanijajalekalewavofula.pdf
    • https://uploads.strikinglycdn.com/files/a11f6c15-a6bb-43b3-b92d-e43b1bd2cbc1/nimezaradekufudodeb.pdf
    • https://uploads.strikinglycdn.com/files/9760ab51-828b-4a12-ac67-6155cd703fdf/lumiwegus.pdf
    • https://uploads.strikinglycdn.com/files/1d3ba594-c802-4cdc-b61f-a172eb541c10/20274338632.pdf
    • https://uploads.strikinglycdn.com/files/05dad23d-a4ba-44d4-b675-2c31da501660/the_dictionary_subject_arrangement_is_not_recommended.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_off000170f4.bin
d866dd1b20abe858f66691bf203a9a1113c57d4a78cf700f005cb49762c2208c
pdf-font-stream PDF embedded font (sfnt) at offset 0x170F4 5588 bytes
font_01_sfnt_off0001841e.bin
fc1b4f2408666169b1f00b7057e7348b0c8725f7aa505c781b3dc399c5afe69e
pdf-font-stream PDF embedded font (sfnt) at offset 0x1841E 11584 bytes