Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6e60820106508c4…

MALICIOUS

PDF

43.0 KB Created: 2020-11-09 13:09:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 814d10f684bb89fe9e91915d4307abcd SHA-1: d456867979fc593b050a454363842fa1563b685f SHA-256: c6e60820106508c434ef5e11c93b2ce4433715a6ae794a356b4f264312a59f54
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to a 'Noco genius g7200 manual' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of a large number of external PDF links further indicates a link farm or SEO poisoning attempt to drive traffic to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.
  • 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://gettraff.ru/aws?keyword=noco+genius+g7200+manual In PDF document text
    • https://jamuseramomuf.weebly.com/uploads/1/3/1/8/131871426/2f3b7cca60e.pdfIn PDF document text
    • https://xizukuzu.weebly.com/uploads/1/3/4/6/134606793/0652f6700c4.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/tiladejonu.pdfIn PDF document text
    • https://dizakevusarebiz.weebly.com/uploads/1/3/4/5/134581037/634138.pdfIn PDF document text
    • https://dokipodaj.weebly.com/uploads/1/3/4/3/134306773/mijimorabekiz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/nonabafat/wcw_la_parka.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e43814f8-e34d-441e-a59c-1056449ce970/besumefasubaxi.pdfIn PDF document text
    • https://s3.amazonaws.com/sugaguxagu/bebol.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/23300988932.pdfIn PDF document text
    • https://s3.amazonaws.com/dazifozixawus/information_technology_departments.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0e6c5000-5b05-4f7f-8e59-f9e39c8775fa/39_bcs_result_download.pdfIn PDF document text
    • https://s3.amazonaws.com/zetare/41436401677.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/67fc3ee8-c826-4c8e-9c9b-a2a285c256df/86541288881.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/84003a47-8fe3-4d92-8f17-09b7b5a35106/33136033179.pdfIn PDF document text
    • https://s3.amazonaws.com/buxoparadazegu/advanced_trainer_cambridge_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/894da2f6-4a63-4b4e-9793-33558d990136/xonif.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_off00005f41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F41 5344 bytes
SHA-256: 64d4319d8a2d7e7f26407bcecb3177180cb6e23170110dbbca6d510abcb9eb39
font_01_sfnt_off0000716e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x716E 2168 bytes
SHA-256: 8cecb7dee196064a84c77f4d5fbf2dd215a8db8198ca05dee02df98a28508d9f
font_02_sfnt_off00007acc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ACC 10600 bytes
SHA-256: 33344ebf1129e43ced722b3b17f14b3a326b8b0bd806d1e6129eae333e4ac96c

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