Malicious PDF — malware analysis report

Static analysis result for SHA-256 38d60026181f54af…

MALICIOUS

PDF

67.6 KB Created: 2020-11-23 22:13:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4a904bf094eb928222110864629ea642 SHA-1: 2bc1b24ead9c40c22a071e4c47f08f215185fe33 SHA-256: 38d60026181f54af0b6eb696bdaed5ab5fde0b5ceb56432d324a7f32a4169523
156 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and ML classifiers, indicating a high likelihood of malicious intent. The PDF contains a large number of external links, with one prominent URL pointing to 'trafffi.ru', suggesting a phishing or malware distribution campaign. The presence of a link farm is a common tactic for SEO poisoning or directing users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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.
  • 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://trafffi.ru/strik?utm_term=%25D0%25B3%25D0%25B4%25D0%25B7+%25D0%25BC%25D0%25B0%25D1%2582%25D0%25B5%25D0%25BC%25D0%25B0%25D1%2582%25D0%25B8%25D0%25BA%25D0%25B0+%25D1%2581%25D0%25B0%25D0%25BC%25D0%25BE%25D1%2581%25D1%2582%25D0%25BE%25D1%258F%25D1%2582%25D0%25B5%25D0%25BB%25D1%258C%25D0%25BD%25D1%258B%25D0%25B5+%25D1%2580%25D0%25B0%25D0%25B1%25D0%25BE%25D1%2582
    • https://cdn-cms.f-static.net/uploads/4420235/normal_5fa11882ed4cb.pdf
    • https://cdn-cms.f-static.net/uploads/4426543/normal_5fa3cc39a8731.pdf
    • https://mosozedap.weebly.com/uploads/1/3/1/8/131856454/6965534.pdf
    • https://cdn-cms.f-static.net/uploads/4490524/normal_5fb69f0115867.pdf
    • https://vosuwuzede.weebly.com/uploads/1/3/4/7/134743003/mitojeponebazu.pdf
    • https://pujumisetuwu.weebly.com/uploads/1/3/4/5/134576336/6e088ba21f20ce7.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/5d458b4a-9c7f-45e5-b0b0-c26ca1b31123/mifarobinevabiletezupama.pdf
    • https://uploads.strikinglycdn.com/files/ec092d39-4020-4661-b35d-abd2756ba4b9/xavubel.pdf
    • https://uploads.strikinglycdn.com/files/d962f9d3-48b1-470c-af08-51570e17da5b/mudufukupefexesi.pdf
    • https://uploads.strikinglycdn.com/files/dc9e5e73-a46e-4993-84ab-584a2a3d1020/28367380023.pdf
    • https://uploads.strikinglycdn.com/files/36d393e3-a1f6-484f-936f-546c682840a4/zedixed.pdf
    • https://uploads.strikinglycdn.com/files/24d617a5-a34c-41d6-babd-4fd8160e5ece/lobijobegulopanivarate.pdf
    • https://uploads.strikinglycdn.com/files/2afb7e36-441d-4708-a872-035c4cee52af/2001_ford_explorer_owners_manual.pdf
    • https://uploads.strikinglycdn.com/files/4f909d06-724d-478d-9890-e8d7fcfddb3b/76484529555.pdf
    • https://uploads.strikinglycdn.com/files/12f911cb-779d-4d9f-a4d5-37e36860e5ed/pronom_personnel_en_allemand.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bdff.bin
73de55a39db0294446ce1c858bc38d93ba94188395a49ca99d8973785e6a0d2d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBDFF 5952 bytes
font_01_sfnt_off0000d1cd.bin
2f0f4640822cf6547416be3780cf0431b0e54a57ca02943e51815a176fcc54e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD1CD 14092 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.