Malicious PDF — malware analysis report

Static analysis result for SHA-256 2589029bb515446e…

MALICIOUS

PDF

81.4 KB Created: 2020-12-24 14:06:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 533bd9964ebbb5cedf09d7b529130e35 SHA-1: 79aef219cdef727c5e8ae34556db6323abbef19e SHA-256: 2589029bb515446e6bb091965df9fe41ae3979aae4f8aa0723dd9a42526fb556
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ggtraff.ru'. The ML classifier also strongly flagged this PDF as malicious. While no scripts were extracted, the presence of a malicious URL indicates an attempt to lure the user to a compromised site, consistent with phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • 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.
  • 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/aws?utm_term=lobitos+peru+surf+report In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366063/normal_5f8f9fe74c366.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459058/normal_5fcd9d75495f2.pdfIn PDF document text
    • https://cdn.sqhk.co/gozolosew/dsifagc/big_rig_truck_shows_2020.pdfIn PDF document text
    • https://pesajupamobe.weebly.com/uploads/1/3/1/6/131607203/xusugoxepa.pdfIn PDF document text
    • https://cdn.sqhk.co/kawaxixe/gjsOgiT/let_s_vegas_casino-_slot_roulette.pdfIn PDF document text
    • https://cdn.sqhk.co/fojufifef/R2oIjAS/raid_liquid_ant_bait_nz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385028/normal_5fb80c0159205.pdfIn PDF document text
    • https://cdn.sqhk.co/nafumozuwe/VhioiaP/robanidowozudomudedogogep.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://s3.amazonaws.com/xakajoziwibi/chiari_malformation_drug_treatment.pdfIn PDF document text
    • https://s3.amazonaws.com/gebukil/43818754922.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/91a831b9-34e0-47db-99e1-ae992ff20bd9/xitiz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/84a33270-e188-4f54-b10b-0bc9f2a8a6ce/firehouse_sub_nutritional_information.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_off0000f60d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF60D 4508 bytes
SHA-256: a6aef2ebbcb7eee63a77bf46a17dff23d8bc0951e8e1924142b77b72c86a48fa
font_01_sfnt_off00010576.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10576 10992 bytes
SHA-256: 697324ca9e74a2b02645e7a3f6da318028724a505a1029fe0d8353b02dd98e21
font_02_sfnt_off00012a7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A7E 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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