Malicious PDF — malware analysis report

Static analysis result for SHA-256 e1212b9a08779161…

MALICIOUS

PDF

64.4 KB Created: 2020-12-21 01:30:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: d3d0f2a0fa08aece5f685de3eec846ed SHA-1: d6d160fb95e97828b7e524427c736f54625a61e3 SHA-256: e1212b9a08779161b0b14ead853b60707c49262d72e92502afd8b2274a9c25f7
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, traffset.ru, which is likely part of a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to trick users into visiting a malicious site, likely for credential harvesting or further malware delivery.

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
  • 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://traffset.ru/strik?utm_term=plants+vs+zombies+sticker+book PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366381/normal_5f8fbdc873960.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384145/normal_5fa7fd5a9e449.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420037/normal_5fcebd5103280.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373016/normal_5f961926a6184.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386076/normal_5fde03da9232e.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/9964f4cc-b85e-4280-925b-6e6128261c6b/cyberpunk_2020_character_generator.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d7ea824f-2b76-487a-962a-fed49b458100/petokadunenulezin.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/debed77d-5efa-45cc-9627-c9baff1bddd6/39853450674.pdfIn PDF document text
    • https://s3.amazonaws.com/petuzutemixuvod/turimakevebovagekolu.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0f8f692c50b1a1e77efcd/t/5fc3b5485147b14804a433d0/1606661451730/during_the_tet_offensive_of_january_1968.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcf1e14aa7dc1185ee52d9a/t/5fd20564ae71ea6dd324d25b/1607599463104/furama.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7da7a64d-09a2-4ace-b908-5f3875fdf3c4/piano_man_sheet_music_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f04d891-56ae-45c3-ae29-0f2ff87aaeae/livurowideweluxa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c05445c0-7f9d-42f5-8c34-f8ec62e57113/38258965180.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_off0000b121.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB121 5048 bytes
SHA-256: 65c25db46d6045606f314bbf691a8e025d26915b9376bee3367afb2ebbb572d2
font_01_sfnt_off0000c237.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC237 10672 bytes
SHA-256: e570ad4d74ef150b1f806e07d063e6c4ac7931378331ef21ea23ca1b52cb05ad
font_02_sfnt_off0000e6ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6AD 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34