Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9c3818ca1ea6d77…

MALICIOUS

PDF

81.6 KB Created: 2021-06-09 16:48:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ea2a0ad79ffb1c94566a0b6a7b5aaabd SHA-1: 58de5f3f1260ac6c688831422ceb91a04b61e22a SHA-256: e9c3818ca1ea6d7741c395e5abbf0f03ff5827cf647c3a011814ffb53422a624
156 Risk Score

Malware Insights

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

This PDF file contains numerous external links, a common tactic for phishing and SEO link farms. The primary URL, https://drafthe.ru/pbw?utm_term=john+wick+3+full+movie+streaming, suggests a lure to a fake streaming site. The ClamAV detection and ML classifier strongly indicate malicious intent, likely to redirect users to phishing or malware distribution sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://drafthe.ru/pbw?utm_term=john+wick+3+full+movie+streaming
    • https://mipigonegomef.weebly.com/uploads/1/3/0/8/130813466/xonutanenafataso.pdf
    • https://cdn-cms.f-static.net/uploads/4484631/normal_5fe79bb233136.pdf
    • https://lekumoga.weebly.com/uploads/1/3/2/6/132683130/bujixazanikof.pdf
    • https://cdn-cms.f-static.net/uploads/4427514/normal_600f0c9ff3997.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://xexufokug.pbworks.com/w/file/fetch/144770721/23130981268.pdf
    • https://uploads.strikinglycdn.com/files/09f72ae0-e1e1-4a03-976e-4d5181c78246/48295819116.pdf
    • https://uploads.strikinglycdn.com/files/e7cc3bb1-a0a4-4d25-8f3a-d9efc066adca/adobe_photoshop_cs3_video_tutorials_for_beginners.pdf
    • http://mapaduzipi.pbworks.com/w/file/fetch/144816654/kevin_basconi_books.pdf
    • https://uploads.strikinglycdn.com/files/96b5eb0a-7ab5-4f88-9db5-0411513ec17c/how_do_i_download_microsoft_office_2010_and_install_windows_10.pdf
    • https://uploads.strikinglycdn.com/files/329dbc02-4677-41e2-8f82-d17b951a3a85/que_nos_ensea_el_camino_de_emaus.pdf
    • https://uploads.strikinglycdn.com/files/483d4ae4-62db-45e0-aa45-dd6321a7a344/93427586391.pdf
    • https://uploads.strikinglycdn.com/files/8a548ef1-b000-449b-8238-cddb297ec3af/21877817344.pdf
    • https://uploads.strikinglycdn.com/files/9ff4d474-1a37-49cf-9e35-e1f4b11a7ca5/dasekirotividaregeruziguf.pdf
    • https://uploads.strikinglycdn.com/files/38fa1919-e71b-4a3f-86a7-37288208cd8c/impossible_quiz_2_unblocked_66_ez.pdf
    • https://uploads.strikinglycdn.com/files/e2d25f6b-9d53-4611-b8d4-d8bc97f84596/rapawupobiso.pdf
    • https://uploads.strikinglycdn.com/files/0786b461-fa06-4a6c-a268-6169e5b20722/d-link_dir-615_default_wireless_password.pdf
    • http://zekodunu.pbworks.com/f/manuale_xiaomi_m365_pro_2.pdf
    • https://uploads.strikinglycdn.com/files/0a9f8fd6-8375-4298-ac49-fd51c67b1ffb/mercury_25_hp_2_stroke_carburetor.pdf
    • https://uploads.strikinglycdn.com/files/2e3cb86a-dd9a-45ec-a3d8-8d930f3a7dd3/1ml_cuantos_gr_son.pdf
    • https://uploads.strikinglycdn.com/files/3ca50dd0-c734-40c8-8dc0-8cd511f12eb3/19928604917.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_off00010001.bin
d1fb0522761dd18dcca413f1ebee2c8126981c54e4771eead4e13a850041d3f5
pdf-font-stream PDF embedded font (sfnt) at offset 0x10001 5664 bytes
font_01_sfnt_off00011339.bin
c9ca7e5a659f990fd0b89dcde854449d5f6dc859637223615a9c8711bd6f2725
pdf-font-stream PDF embedded font (sfnt) at offset 0x11339 11084 bytes