Malicious PDF — malware analysis report

Static analysis result for SHA-256 453a0e31279e1408…

MALICIOUS

PDF

138.1 KB Created: 2020-12-25 19:57:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: f869c751b6d3fa66e555b0fc69812ee8 SHA-1: 102de9ea4b5263230587037e754d55c3d3952458 SHA-256: 453a0e31279e140845f4b23af1751712c056d97d8581a98b11db81fc263faaa3
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, contains text fragments that appear to be part of a lure related to military commanders, aligning with a spearphishing attachment attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://traffking.ru/aws?utm_term=former+10th+mountain+division+commanders PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4367687/normal_5f90197174470.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484990/normal_5fdc396631489.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415740/normal_5f99cc9bb1be1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368469/normal_5f8bab25998fd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414672/normal_5fb4a0d809c04.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426830/normal_5fbb83974eea7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388160/normal_5f9770f028e7d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414688/normal_5fc02ed4803c0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375514/normal_5fb775cd8b675.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366400/normal_5f9b1654f3fc4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470209/normal_5fc4e84e01150.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375355/normal_5f971d74795f0.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/xunilukegez/59667848469.pdfIn PDF document text
    • https://s3.amazonaws.com/befafuni/lazewalewonewolewinofaro.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_off0001e23f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E23F 5356 bytes
SHA-256: 92178a1041d253a9dfdc48eca1f439e99ccf4e051325cc70d9a7cea59cf0035d
font_01_sfnt_off0001f456.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1F456 11392 bytes
SHA-256: 7daebe23ef6fdcc6b873c79f1a31d39ba865ccfb06c84aef956cc355ee29828a