Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b17472109ee6a04…

MALICIOUS

PDF

72.3 KB Created: 2020-11-25 15:42:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: d7af57d4d4ccbc19103b809adf860c8a SHA-1: 16ee3ec65df47604538eac1384579b9a35508b03 SHA-256: 7b17472109ee6a0436ee925d40dab082b8109c59f3c4416fe3a38c30db6f610b
214 Risk Score

Malware Insights

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

This PDF file contains a large number of embedded links, with at least one identified as a malicious redirector. The heuristic firings indicate a link farm designed to direct users to potentially harmful sites. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to lead users to phishing or malware-hosting pages.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • 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.
  • 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://traffine.ru/strik?utm_term=douchebag+simulator+2+unblocked+games In PDF document text
    • https://cdn-cms.f-static.net/uploads/4409096/normal_5f9d32141be04.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4479213/normal_5fad3d6c157f4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366336/normal_5f8db6426ae0b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424683/normal_5fa9d96556dd9.pdfIn PDF document text
    • https://pevaluxuduta.weebly.com/uploads/1/3/4/5/134502983/bufuwijapav-jepotanabafo-wokunagim-wojiru.pdfIn PDF document text
    • https://fisolaxarod.weebly.com/uploads/1/3/4/4/134471724/rusobagap.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384472/normal_5f91f0dfb69a8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488323/normal_5fb9ca4a82044.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/a49dc3af-3055-4bf6-af64-a1881f1c6773/kamisama_kiss_vol_1.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/03dad9dc-2248-415f-9201-fb12e4d6804d/87679121585.pdfIn PDF document text
    • https://s3.amazonaws.com/dobesogum/definition_of_web_2.0_tools.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/10bcac9b-ad79-4939-84df-7377acb36455/gipamejusorusafurulini.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/001e8218-5d84-4ef6-b816-b1c5e8071b65/16054636112.pdfIn PDF document text
    • https://s3.amazonaws.com/fopalew/alcatel_1_phone_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6eae397f-8a05-4831-a48c-596f07dedabd/rubox_20_free.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d043.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD043 5568 bytes
SHA-256: b114da579f0638410326240d4c744946e5058d7d93aa9ec404ed7d89365a7379
font_01_sfnt_off0000e309.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE309 10080 bytes
SHA-256: 584ad96f78d71546a49b02a0196ef19dd608c9556b16079484cf3a180dd6945e
font_02_sfnt_off0001058c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1058C 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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