Malicious PDF — malware analysis report

Static analysis result for SHA-256 26d56db094086491…

MALICIOUS

PDF

68.6 KB Created: 2021-03-06 10:01:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e496f221dea2df1f5959e9eed88696fc SHA-1: 2455ee1af0aa44be66002edac20e8525083ee75b SHA-256: 26d56db0940864912530c8d082355a80903310af6c0fa18a46aa6b3b7d432b32
126 Risk Score

Malware Insights

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

The PDF contains numerous embedded URLs, many pointing to disposable hosting services, indicating a link farm designed to redirect users. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of malicious redirection tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 5

  • 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
  • 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://pelibifir.ru/123?utm_term=lincoln+sa+200+parts+machine
    • https://kekorozonositen.weebly.com/uploads/1/3/2/7/132710750/154357.pdf
    • https://zesakexe.weebly.com/uploads/1/3/5/3/135314388/radolipovufuja-nomej.pdf
    • http://kutejovanog.getenjoyment.net/is_there_an_it_2_book.pdf
    • https://mobisikude.weebly.com/uploads/1/3/1/6/131606420/18fcb907.pdf
    • https://texoxarisozitew.weebly.com/uploads/1/3/0/9/130969357/sejatoruvebulol.pdf
    • https://xegafifa.weebly.com/uploads/1/3/0/7/130776616/xokijax-vogekoloxo.pdf
    • https://tugunopoxakisif.weebly.com/uploads/1/3/1/3/131398472/pulipuwini.pdf
    • http://zonizubiro.getenjoyment.net/death_march_light_novel_volume_13.pdf
    • http://daludaja.getenjoyment.net/kefabafibasakixibafap.pdf
    • https://pirebuvix.weebly.com/uploads/1/3/2/7/132710697/141160.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/070b2cd6-991a-4a98-a775-d92febb4152b/monitor_de_signos_vitales_philips_mp20.pdf
    • https://uploads.strikinglycdn.com/files/4e09a836-4a77-4685-b4e9-dba89fad6b78/high_calorie_indian_foods_list_for_weight_gain.pdf
    • https://s3.amazonaws.com/bulozor/whatsapp_wedding_invitation_card_template_psd.pdf
    • http://jufofokisib.epizy.com/caleb_maddix_book.pdf
    • https://uploads.strikinglycdn.com/files/96c8fb92-218b-408d-85ae-8759ee2906a9/godedanuvonu.pdf
    • http://kuxoxokazutuv.myartsonline.com/sivatovuworuga.pdf
    • http://tanofekomom.epizy.com/ccleaner_chip_kostenlos_deutsch_32_bit.pdf
    • http://fabovodowep.epizy.com/82611728559.pdf
    • https://s3.amazonaws.com/vavale/rakazaxexe.pdf
    • http://mozutulobiris.onlinewebshop.net/aristotle_poetics_analysis.pdf
    • https://s3.amazonaws.com/wavunot/how_to_use_qumi_projector_without_remote.pdf
    • https://s3.amazonaws.com/vuzotisenixava/wodesajarifata.pdf
    • https://s3.amazonaws.com/toguvaju/how_do_you_light_a_gas_oven_pilot.pdf
    • https://uploads.strikinglycdn.com/files/b79c9b1e-6279-4c34-a369-dcc90555f857/does_matcha_green_tea_powder_have_calories.pdf
    • http://rimatos.epizy.com/jaruxosumavokunedasemuni.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_off0000cf6d.bin
8d49df82b721c9b1a638206298aeeb369454eaf7a07c1f4daa48629b38832f11		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCF6D 5388 bytes
font_01_sfnt_off0000e198.bin
87bb29535b7f1dc0bd5e4030fed70384fab7abbced48f160697a7c8fc86c32aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE198 10340 bytes

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