Malicious PDF — malware analysis report

Static analysis result for SHA-256 0cd3d10cf8779422…

MALICIOUS

PDF

62.7 KB Created: 2020-11-18 06:14:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: b0a46a454342bdf1d3466016cdfe4e92 SHA-1: 19fd29142ba4a59fa5209d5c9af49deeb3ec353c SHA-256: 0cd3d10cf8779422a8b36c8278c60f49cadc7a19883d226a8b438f38e1dd32bc
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'. This indicates the document is designed to redirect users to a potentially harmful site. The ML classifier and ClamAV detection further support its malicious nature. Although no scripts were explicitly extracted, the presence of a malicious URL strongly suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/123?utm_term=ford+8n+wiring+diagram In PDF document text
    • https://cdn-cms.f-static.net/uploads/4392451/normal_5f8edc5547ae5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403121/normal_5fa080c9456a1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384299/normal_5f92744d74d45.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489422/normal_5fb2bd7751219.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/dugibabafod/coconut_scale_insect.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f5d15c56-bf90-4c3f-ac17-2f799b8806fa/5028392129.pdfIn PDF document text
    • https://s3.amazonaws.com/kagedatabujo/sunuvupulatazetevikob.pdfIn PDF document text
    • https://s3.amazonaws.com/tesodagiwor/43022277462.pdfIn PDF document text
    • https://s3.amazonaws.com/zonivezada/tujuvavud.pdfIn PDF document text
    • https://s3.amazonaws.com/sigobija/29616333828.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/58b0ba88-2ad3-45be-9e30-cebbe74cdc8f/insignia_wireless_charging_pad_red_light.pdfIn PDF document text
    • https://s3.amazonaws.com/damerirazib/applied_calculus_6th_edition_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/bifamomove/speed_time_and_distance_worksheet.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_off0000b777.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB777 5176 bytes
SHA-256: 979d9c9afcc94426ffa5b765b634b1ed2aef0425187ff784e9bb1754f78bbedb
font_01_sfnt_off0000c90d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC90D 10960 bytes
SHA-256: 0033730885bafd9491eecb39aa5c30ee4a38d43138000c2b06aecdf5c4189a01

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