Malicious PDF — malware analysis report

Static analysis result for SHA-256 65642161ef3dadcf…

MALICIOUS

PDF

76.2 KB Created: 2020-12-18 02:33:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: d2a89e416139ca0242c0bb70cbb5feff SHA-1: 6a9ebffb27546104b1a6440c3fd667dcc031ca65 SHA-256: 65642161ef3dadcf795b6d70b253bdde739e3318d75da7b2ac7a3f95f56a0ca3
94 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 embedded URL 'https://traffking.ru/123?utm_term=shop+play+win+monopoly+2020+app' is the primary indicator of this malicious activity. While no scripts were extracted, the PDF structure and the malicious URL strongly suggest an attempt to lure the user to a harmful site, likely as part of a phishing or malware delivery campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 3

  • 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/123?utm_term=shop+play+win+monopoly+2020+app In PDF document text
    • https://wilujogid.weebly.com/uploads/1/3/4/3/134347442/aaf6018007.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366668/normal_5fa7cc0a73385.pdfIn PDF document text
    • https://rixolojujosu.weebly.com/uploads/1/3/4/6/134622111/duputi.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/8980310.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403805/normal_5f9b7de1bb457.pdfIn PDF document text
    • https://gofexuzadefedim.weebly.com/uploads/1/3/4/3/134306088/644050.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/kesumasaka/cyber_hunter_free_pc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/93eff96e-abb4-4cd8-8372-bc1ae1f26fe4/gujagapudul.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/jeffrey_sachs_age_of_sustainable_development.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f21ca3b0-ef43-4ea8-8c82-8af85cd2f805/63129790157.pdfIn PDF document text
    • https://s3.amazonaws.com/tomamujuf/comparative_and_superlative_adjectives_worksheet_answer_key.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e6896a26-50f1-4bad-96e8-90a7e848207f/dr_ken_berry_keto.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_off0000e0af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0AF 4944 bytes
SHA-256: f0dc8efebe740cfc4bdba3a6aa642c46522a290304e796eb6fe868abe4f53893
font_01_sfnt_off0000f14d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF14D 10600 bytes
SHA-256: 4ff1da2efa8eb34107a856824d770005995f787f2953208d869449b556c625fe
font_02_sfnt_off0001156b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1156B 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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