Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d87fe79054fd427…

MALICIOUS

PDF

69.7 KB Created: 2020-12-23 16:14:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 48bf3f74cd5faf2dc6f3b701946c59d4 SHA-1: ae44a78df7d73ac5adc0591f1b236ee8fb61446e SHA-256: 6d87fe79054fd42711c8e5c46e0e3b9624eaf55dac70b36f427a13c3e9ef52d6
156 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains a large number of external links, suggesting it is part of a link farm or phishing operation. The primary URL, https://traffking.ru/strik?utm_term=business+process+management+pdf+book, indicates a lure related to business process management, likely to direct users to malicious content or phishing pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 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.
  • 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://traffking.ru/strik?utm_term=business+process+management+pdf+book PDF link annotation
    • https://boseveju.weebly.com/uploads/1/3/4/5/134595203/xefewuzotapopir.pdfIn PDF document text
    • https://ramakizuwag.weebly.com/uploads/1/3/4/3/134321509/749fe2329d.pdfIn PDF document text
    • https://tivulose.weebly.com/uploads/1/3/4/3/134318041/rasim_nobosurenedi_mokokemadoj_delen.pdfIn PDF document text
    • https://cdn.sqhk.co/zowipitilo/Co1Nkje/nelowaxenamofabusaxoveze.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/175927ba-0a69-43a5-bc75-100c0c68da7e/2150349865.pdfIn PDF document text
    • https://s3.amazonaws.com/zidosozawok/teste_comunicao_assertiva.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1a29eacf-c8a7-47b9-b8bb-d546f0ee2a55/ar_nosurge_ode_to_an_unborn_star.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d4c1ed9f-dff4-49fc-9589-36fd29ef07fe/george_jones_wifes_name.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ab4cf03-cf53-460a-9e1c-44a63bc540aa/sample_objections_to_special_interrogatories_california.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c7c99edf-ab3c-4502-9a51-eee0ca9524ae/zizilum.pdfIn PDF document text
    • https://s3.amazonaws.com/fekaduvopigab/70252540561.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26a3ece3-0cef-41ce-a415-04449a491092/8289980517.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_off0000d20c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD20C 5696 bytes
SHA-256: 0f45738e3bf61d8650a18c985c95a88fe11851c48e72cccc6337b74c6617e12b
font_01_sfnt_off0000e55b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE55B 11028 bytes
SHA-256: c41d1c53c8ea596dfc37319073fc8440cb12fca265ebacf546804867ab98abdd

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