Malicious PDF — malware analysis report

Static analysis result for SHA-256 e91b3f3e96540b2a…

MALICIOUS

PDF

274.3 KB Created: 2021-05-05 19:47:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: de5a8f5961bb683d5637705d19e6fb37 SHA-1: 26e8b0f8ec80d10dca5e429adfd50395b3e85e86 SHA-256: e91b3f3e96540b2afcf20e530c0dd19366d9bb82a6ff520bc33602b55b860038
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, and ClamAV detection confirms its malicious nature. The ML classifier also flagged it with high confidence. While no scripts were explicitly extracted, the presence of external URIs and the overall detection suggest it's designed to redirect users to malicious content, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9790

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://bologen.ru/strik?utm_term=constitucion+mexicana+1917+caracteristicas PDF link annotation
    • http://mapotilij.mygamesonline.org/13330321734.pdfIn PDF document text
    • http://wokulorumal.iblogger.org/zutitibiwawilosedavezidut.pdfIn PDF document text
    • http://gotesukig.22web.org/nirarazeb.pdfIn PDF document text
    • http://jozipuvuwuzaj.mywebcommunity.org/dbs_bank_account_opening_form.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4376379/normal_5ff5119b5ae76.pdfIn PDF document text
    • http://extraterrestrials.space/free_download_harry_potter_full_movi0uuqg.pdfIn PDF document text
    • http://gizigevom.mygamesonline.org/44653260141.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470552/normal_6040fb3d0001e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416125/normal_5fc88b2c60e32.pdfIn PDF document text
    • http://fojukivijivik.medianewsonline.com/categorias_gramaticales_esquema.pdfIn PDF document text
    • http://wirobigi.medianewsonline.com/38518863023.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393638/normal_600fd6522c6d0.pdfIn PDF document text
    • http://koteyarn.moscow/gramatica_inglesa_practica_con_ejercicios_resueltosku49o.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488346/normal_603c71c8d6a60.pdfIn PDF document text
    • http://umkatrade.ru/how_to_clean_ninja_professional_900_wattsmps12.pdfIn PDF document text
    • http://renakejopipelew.iblogger.org/78171974331.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
    • https://uploads.strikinglycdn.com/files/8a75e5da-9fe3-4ad4-bd29-206a4183ea7e/45193598092.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78fb0d94-e53a-465c-bf76-095a2c2d8a3d/safety_first_expiration_date.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c29cfb57-fa28-437b-a2b0-b5fbbc769a80/how_to_change_the_battery_in_a_casio_wave_ceptor.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c709766-77f7-48fa-a6b6-232535c029bb/mitologia_griega_medusa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/792ea472-a878-4f32-bd2d-6bb14d8bfa59/zawifupifisogora.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/244d7822-0b3f-4b42-b60d-8858e568f2db/vuwuwikadotididavojolok.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d4ed08b-39d2-4001-869d-79a21589eefd/41293073331.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0003db8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3DB8C 5176 bytes
SHA-256: d1abe0b28fd7094ac4542fbe9cad4a75be670fd72a2bb42d9291db8388f11c3e
font_01_sfnt_off0003ed1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3ED1A 12836 bytes
SHA-256: 53ff2096a89d3a4a11c53485cfcef0b32c80eafb13b2188e6c76b1ac2686f133
font_02_sfnt_off000414c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x414C4 16204 bytes
SHA-256: e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15
font_03_sfnt_off000429f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x429F2 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333

Open this report in the interactive analyzer, or submit your own file for analysis.