Malicious PDF — malware analysis report

Static analysis result for SHA-256 14abd35755f8434f…

MALICIOUS

PDF

85.8 KB Created: 2020-11-17 09:22:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: b695f84763e0edc274f8b1c3e2c2722d SHA-1: b532c0fc8263c7efe07d49e90330b721f9b96c5c SHA-256: 14abd35755f8434f1dd0cf13d95d63f242108a87272e26af08c12c69444e89e4
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.007 JavaScript

This PDF file was flagged by multiple critical heuristics, including ClamAV and a machine learning classifier, indicating malicious intent. It contains a large number of embedded links, many of which point to redirector infrastructure like 'traffking.ru', suggesting a phishing or malware distribution scheme. Although no scripts were extracted, the PDF structure itself is weaponized to facilitate malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/123?utm_term=natureview+farm+case In PDF document text
    • https://cdn-cms.f-static.net/uploads/4376612/normal_5f9a8e79dd6ce.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385216/normal_5f9d9b8069e00.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378382/normal_5faaa6498343b.pdfIn PDF document text
    • https://romemigevowuf.weebly.com/uploads/1/3/4/3/134335991/reruxopoxifamo-bogawujugole.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450354/normal_5fa103600385e.pdfIn PDF document text
    • https://lipowuripipu.weebly.com/uploads/1/3/1/3/131378852/bozovofopibabax.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393639/normal_5f91fd16d4f9b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383930/normal_5f9edaba0908b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453902/normal_5fa99707b04ea.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/pajeriramal/jurassic_world_fallen_kingdom_sub_indo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/97a73163-731d-48b9-97ed-038afa5d3f4c/pikepiv.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/2026480644.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1dd09232-4ee3-45ff-b107-becfc1b8d5bc/happy_birthday_ringtone_zedge.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/312c9fa5-a974-4e9d-8a4e-507ade305a8e/seduvofow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f4850a0e-124f-4ee2-a530-079f73497197/78482023303.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2d847b0f-462b-4668-8fd4-4329378fca85/4354508219.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_off00010515.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10515 4780 bytes
SHA-256: 709060a6df65e154eb60506557ed3a86a2799e3e24aad73923c74d660ebd430b
font_01_sfnt_off0001156f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1156F 11324 bytes
SHA-256: c0f56cfbfc4bc34ce91b8570f8b5e1be8e2acb2da5818f67eb420fcada72eda1
font_02_sfnt_off00013bf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13BF6 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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