Malicious PDF — malware analysis report

Static analysis result for SHA-256 43844f27f8a1541d…

MALICIOUS

PDF

81.7 KB Created: 2020-11-20 01:40:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5b93d0951e5ba98f62211d9584813e05 SHA-1: 789807b1e81a78bdbd9cecfa52540051331ef132 SHA-256: 43844f27f8a1541d50a7995645711381d407b0286a58bbbcae4f1c3e5ecfd621
154 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by multiple heuristics, including a critical alert for linking to known malicious redirector infrastructure. The embedded URL, https://traffmen.ru/strik?utm_term=watch+the+rundown+online+free, is the primary indicator of malicious intent, likely serving as a lure for phishing or malware distribution. No scripts were extracted, but the PDF structure and the malicious URL strongly suggest a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffmen.ru/strik?utm_term=watch+the+rundown+online+free
    • https://cdn-cms.f-static.net/uploads/4387586/normal_5fa48a4eb579a.pdf
    • https://cdn-cms.f-static.net/uploads/4365619/normal_5f88d3c4d52d9.pdf
    • https://cdn-cms.f-static.net/uploads/4374009/normal_5f98d595a74b9.pdf
    • https://cdn-cms.f-static.net/uploads/4382976/normal_5fa486e99b7b1.pdf
    • https://cdn-cms.f-static.net/uploads/4381094/normal_5fb56b2934a40.pdf
    • https://cdn-cms.f-static.net/uploads/4378853/normal_5f991b1d61b93.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/73a96dad-ee39-4969-9112-baa90e7ee151/87637803273.pdf
    • https://s3.amazonaws.com/tobito/65122958444.pdf
    • https://uploads.strikinglycdn.com/files/88ada7ec-c6b4-46d0-96ad-73b3333bf911/difewafanosob.pdf
    • https://uploads.strikinglycdn.com/files/c196a766-e362-42e2-9f47-392602f9a336/79031285797.pdf
    • https://uploads.strikinglycdn.com/files/ef8c493c-e246-4251-999e-6e561e76a2ce/kegakuwixilikovu.pdf
    • https://uploads.strikinglycdn.com/files/20200e8b-775e-4dba-be07-26da6b54ebd2/72597460747.pdf
    • https://uploads.strikinglycdn.com/files/323f4ef4-b4d1-48f7-971a-11cfdb184afe/guitar_hero_3_songs_cheat.pdf
    • https://uploads.strikinglycdn.com/files/c843f402-f73e-489a-a2b8-ff4072c62abc/kutogezevegematefiperu.pdf
    • https://s3.amazonaws.com/wunojipu/bestine_solvent_and_thinner_sds_sheet.pdf
    • https://uploads.strikinglycdn.com/files/7b13d4b6-4e45-43d7-9083-1facf364abf5/7403189977.pdf
    • https://uploads.strikinglycdn.com/files/43bfc7b0-3a12-4524-a857-36a9ed0e78a6/xivupatejawobipumizulivu.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f4dd.bin
dc5a77501bd8ddfaeb8d3d648e5774609715348575b1fa8ab6bf0388f2ffe67c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF4DD 4916 bytes
font_01_sfnt_off0001059c.bin
3a552b28a137e06b912e8d950c448977561a9e926bd71415f469a6ca91184fcb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1059C 11528 bytes
font_02_sfnt_off00012bc6.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12BC6 4324 bytes

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