Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6dddcd078ea1e63…

MALICIOUS

PDF

54.1 KB Created: 2020-10-27 09:29:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: a245c16edd91224c3c74a6ac90306a45 SHA-1: d54583e2c1fba9b05e4e815cce3a7d890b309e9b SHA-256: c6dddcd078ea1e63fdeac831fa4b53548711772c0ac3743e9f442184f25e26c4
94 Risk Score

Malware Insights

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

The PDF document contains a heuristic firing for a malicious redirector link pointing to 'https://ggtraff.ru/strik?keyword=pokemon+alpha+sapphire+legendaries+exclusive'. The ML classifier also flagged this PDF with high confidence. While no scripts were extracted, the presence of a malicious URL strongly suggests an attempt to lure the user to a compromised site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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.
  • 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://ggtraff.ru/strik?keyword=pokemon+alpha+sapphire+legendaries+exclusive In PDF document text
    • https://cdn-cms.f-static.net/uploads/4411218/normal_5f945c1f2dc07.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382408/normal_5f930ab8c7b4d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373509/normal_5f8dc46c64945.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370541/normal_5f8838f4e9a8d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366313/normal_5f87b8bf4a5ca.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/1f898ce5-94c0-48bf-8494-81de0d9986e8/begumewasijozaganip.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0357d010-5806-4607-b8da-a3b17157ae67/pabekivexarekakuna.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9fb3504a-88fc-4c67-a3f4-85f084347886/32225186388.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aaa68f17-3aac-494c-84d6-e7a39ebeb521/wuwugilobazemizosim.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58ad4f9e-10c9-4490-8033-a4038d959bc8/99132441112.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/13657c6a-f176-4e84-aba1-f29b5bd04ab9/fudenudukugido.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c9d780b3-74f5-4d24-a3d4-51f0b3834dab/59615466791.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7919d646-9454-466c-a5a0-8dc713a78c6a/jamupitijemosujinop.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5796cd9e-8ea6-4f71-8f23-aa71a85d5707/mecanica_dos_solos_e_suas_aplicaes_vol_2_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/35cbd6b2-dcd8-4cb0-bb75-9e41a0b38b8e/68592671697.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/38e93ae1-af54-4e70-bf47-45668cd5e80b/3216683737.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ed05ac04-bf25-4e2e-8956-8bb1566d471f/37010293392.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/191940f5-fe58-4cf0-bf4c-65e6a1d40dcd/dozilujutigarilozuk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a2a78f6d-2b35-4593-8f72-a36f7e2ac728/mamalilifov.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cedaec40-98cd-46ac-ab7e-74a896e6423f/89557726197.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_off00008320.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8320 5480 bytes
SHA-256: e4ff1c81f71b77d3685fbadb8efdd1b087ee45da6956339514892693cb0cfd03
font_01_sfnt_off0000958a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x958A 11124 bytes
SHA-256: d1e835aae659e872fc2e9d515c4c36efe55948578c424dddf4746a37700a51e2
font_02_sfnt_off0000bad0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBAD0 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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