Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d0cfb50b4bb506a…

MALICIOUS

PDF

68.7 KB Created: 2021-03-08 13:51:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: b308e4929ea0fb65a02fe999b231dfde SHA-1: dfd9b8c8078024ebe72bfdb36b0948f7f987b090 SHA-256: 2d0cfb50b4bb506a133bad58e3642558cef2c31ec6a9c353dc7a77d3006e6a47
126 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. It contains numerous embedded URLs, many of which point to disposable hosting and are likely used for phishing or distributing further malware. The heuristic PDF_SEO_DISPOSABLE_LINK_FARM specifically identifies the sample as a link farm on disposable hosting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://botokaw.ru/123?utm_term=lagu+dangdut+abiem+ngesti+janji+setan PDF link annotation
    • http://ayazshabutdinov.club/despertando_al_gigante_interior_descargar_epubttglr.pdfIn PDF document text
    • http://svoylend.xyz/best_town_hall_9_attack_strategyf0vz2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460057/normal_5fd86f55a0857.pdfIn PDF document text
    • https://kepedeko.weebly.com/uploads/1/3/5/9/135959580/pakine.pdfIn PDF document text
    • https://mubelumovetofap.weebly.com/uploads/1/3/1/8/131856402/2363013.pdfIn PDF document text
    • http://zijafanovidiz.sportsontheweb.net/nursery_rhymes_lyrics_jack_and_jill.pdfIn PDF document text
    • https://lofuniwap.weebly.com/uploads/1/3/0/8/130874201/6051893.pdfIn PDF document text
    • https://zamupegokeza.weebly.com/uploads/1/3/1/6/131637483/lipapuputosenuwaw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473064/normal_601b1260e4161.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374545/normal_602c241058cb7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490752/normal_5fc859435a636.pdfIn PDF document text
    • https://cdn.sqhk.co/kuvuwisarov/Upjhihj/new_hollywood_action_movies_2018_list.pdfIn PDF document text
    • http://qupieasy.online/lilerifuvetekekzm2e9.pdfIn PDF document text
    • http://form-lnstagramcopyrightservices.com/987428117774hovx.pdfIn PDF document text
    • https://cdn.sqhk.co/kulamogo/se3hdjc/best_lightsaber_color.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/371e2b4d-47a7-4c5c-a947-f69d44d96702/is_gimp_photo_software_safe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c545628b-9484-47f7-9fca-9e74de5f6a35/como_fazer_um_molho_rapido_para_macarro.pdfIn PDF document text
    • http://nudagimanefej.atwebpages.com/10856876866.pdfIn PDF document text
    • http://tuzuxutetug.atwebpages.com/how_to_make_1024x768_stretched_look_better.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b7c7c085-df1e-46ff-9fa1-d994db49911f/fegefudapadudupe.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c01a3ba7-cbbe-4108-bdd3-5c38e84ea498/dijibi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/432dc203-6810-4577-b862-87f9b1e4ba4c/2634977743.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_off0000cdc0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDC0 5172 bytes
SHA-256: fdefe9bdc2f31087ebecb87ffb4f59277e7e9769ac6a91762b1260778da2ad21
font_01_sfnt_off0000df53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF53 10768 bytes
SHA-256: 863ecd899e63eb7dc5adfb531d8716733c66b5a983fc82f4828bc4a28d33183c

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