Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ddf60f3a7acb12e…

MALICIOUS

PDF

74.6 KB Created: 2020-12-17 04:29:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: da58cdc49b3a18ba52958c497fa29c8d SHA-1: 7ad563d3276dd924dd76da19f22b5c4d1832c759 SHA-256: 6ddf60f3a7acb12e145c7b01c319fd2bb4bb28b716def65e802391c40eed9daf
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, with one prominent URL pointing to 'traffset.ru'. This, combined with ClamAV detection as 'Pdf.Phishing.Trojan', strongly suggests a phishing or malware distribution attempt. The presence of embedded links and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content.

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://traffset.ru/strik?utm_term=mary+had+a+little+lamb+piano+chords
    • https://cdn-cms.f-static.net/uploads/4379852/normal_5f98ad8f42038.pdf
    • https://nitetezelimon.weebly.com/uploads/1/3/1/4/131438651/59823d138b5b19.pdf
    • https://bijifejutumaxob.weebly.com/uploads/1/3/1/3/131381781/ed9a4acdab53.pdf
    • https://kudaxemukuwofi.weebly.com/uploads/1/3/4/6/134691428/699010be0ae1.pdf
    • https://cdn-cms.f-static.net/uploads/4455376/normal_5fa7bf2032db6.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static1.squarespace.com/static/5fc7b611abffab30daade22d/t/5fcbc4b86e74d26c6f07516c/1607189688836/tosuzekefawume.pdf
    • https://static1.squarespace.com/static/5fc7912bc89b935f15e2dde5/t/5fccd756260a660a6bd9eece/1607259990529/82039674894.pdf
    • https://static1.squarespace.com/static/5fc29af4e9fc3622d52d06da/t/5fd03037b8bf0379e6025795/1607479352114/26352827457.pdf
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbd36dc04971d5155d5af7d/1606235869077/18027787659.pdf
    • https://static1.squarespace.com/static/5fc1cc6f0b6b03258f3bee00/t/5fd0341012264b5dfdc49122/1607480343405/77080610133.pdf
    • https://static1.squarespace.com/static/5fbce344be7cfc36344e8aaf/t/5fbf4964eaf37e3b6491dcaf/1606371685168/a_hat_in_time_death_wish_guide.pdf
    • https://static1.squarespace.com/static/5fc14c376609fd0ee7940dbf/t/5fd16636f2ee360040ec1cdf/1607558712481/brain_out_can_you_pass_it_online_game.pdf
    • https://static1.squarespace.com/static/5fc0fd9af9866f3fd2d4d777/t/5fc2675d9b1ed0353829c7ce/1606575966735/heartgold_gym_leader_order.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_off0000e670.bin
90c520a5245c22a5326394c0279c42baf8623cb0e0cccda0060cfd84e8a9150e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE670 5560 bytes
font_01_sfnt_off0000f939.bin
6ca7a339c9158d0df506f34acc851bbd2897480cb7d32bc629c92b88dab98491		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF939 10716 bytes

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