Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce9f638046b668de…

MALICIOUS

PDF

69.8 KB Created: 2020-11-10 18:36:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 6e0faa4433abee8a7dd34e5f4bd562ce SHA-1: ebd482a09a5e24011443151751fd88842d2b8d7d SHA-256: ce9f638046b668de6fdf82978268853f631b7c16137661f6f287db938069cbdc
154 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The ML classifier also strongly flagged this PDF as malicious. The embedded URL points to 'traffking.ru', which is highly suspicious and likely serves as a lure for phishing or to download further malicious content.

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://traffking.ru/aws?keyword=columbian+exchange+essay+conclusion In PDF document text
    • https://cdn-cms.f-static.net/uploads/4372963/normal_5f905791c020d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414339/normal_5f97e301126c9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426676/normal_5fa4f360ec56a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380079/normal_5f8cf6325d88d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378605/normal_5fa12b2d94b1a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379720/normal_5f9d34410eed1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368230/normal_5f8813f98ab46.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365542/normal_5f970c6a50aff.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384471/normal_5f9965d07459d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382960/normal_5f9714bc43d88.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/a6790fe7-4db3-4e24-9352-d84072423013/guxaxemusefilewedefebu.pdfIn PDF document text
    • https://s3.amazonaws.com/vobuturinivi/american_government_study_guide_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08033c2f-c2b1-4e2a-a598-c7e2a07be8d7/kesuxiz.pdfIn PDF document text
    • https://s3.amazonaws.com/baxekojojexusol/death_stranding_platinum_guide.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_off0000c6f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC6F7 5252 bytes
SHA-256: c8ed5538ae176a32e8f3f1f781b0df7f62d450724d87fe14ea9d9d7542a936b8
font_01_sfnt_off0000d8b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8B4 10420 bytes
SHA-256: 4fbbef2ef96b3c5229aaf4b1fd11418dfb6ee234608cdf77fb5976cca0a7d605
font_02_sfnt_off0000fc28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC28 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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