Malicious PDF — malware analysis report

Static analysis result for SHA-256 3cb15d2c211f0a04…

MALICIOUS

PDF

67.2 KB Created: 2021-04-17 15:16:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8046e0495059f03a10b02ae3f0660646 SHA-1: 9db41c3386a6e836694d62cf90d2f3a22c6a3fa2 SHA-256: 3cb15d2c211f0a04d80c264f32df27ec3a1e5d431946e00a48bc025a681afc81
94 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that redirects to a suspicious domain, indicating a likely phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the presence of external URIs and the overall detection profile point towards a malicious document designed to trick users into visiting a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9797

Heuristics 3

  • 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
  • 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://resalured.ru/strik?utm_term=stanley+600+amp+jump+starter+how+to+use
    • https://cdn-cms.f-static.net/uploads/4382003/normal_6059bc0a21e3e.pdf
    • http://vostokzapad.su/mejumev7l4br.pdf
    • https://cdn-cms.f-static.net/uploads/4384472/normal_6021510b1175b.pdf
    • https://static.s123-cdn-static.com/uploads/4492892/normal_60029b6bc827f.pdf
    • http://smartcreditcheck.info/3111905081l3l77.pdf
    • https://static.s123-cdn-static.com/uploads/4401989/normal_5fcd629220568.pdf
    • https://cdn-cms.f-static.net/uploads/4385863/normal_605825b69b6c6.pdf
    • http://voirlo.xyz/fabigifogisobowofetajm9wbe.pdf
    • http://milansit.space/72376300328qj2ao.pdf
    • https://cdn-cms.f-static.net/uploads/4390330/normal_6015d39b994fc.pdf
    • https://cdn-cms.f-static.net/uploads/4421970/normal_5fd1c7ac84449.pdf
    • https://cdn-cms.f-static.net/uploads/4492257/normal_604cc13cd40f4.pdf
    • https://cdn-cms.f-static.net/uploads/4484994/normal_6059329ef346f.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/221f70df-5cf9-437c-a106-875214db7ee8/53890718450.pdf
    • https://uploads.strikinglycdn.com/files/0a984263-3faa-4350-b94b-375a88a7584b/nanemuvi.pdf
    • https://s3.amazonaws.com/jolituzoji/tmux_mac_cheat_sheet.pdf
    • https://uploads.strikinglycdn.com/files/5df2e684-ce3e-4f36-8251-3562e5f28e8e/bissell_powerforce_compact_turbo_bagless_vacuum_cleaner_lightweight_vacuum.pdf
    • https://s3.amazonaws.com/megodipewukitoj/25784601104.pdf
    • https://s3.amazonaws.com/dopugaxelelema/cat_in_the_hat_meme_template.pdf
    • https://s3.amazonaws.com/jamuluvuvava/chinese_light_novel_download_epub.pdf
    • https://s3.amazonaws.com/sizabo/whatsapp_video_2019_bhojpuri.pdf
    • https://uploads.strikinglycdn.com/files/09fad622-7a9c-45d4-8010-d7a11b7099bc/sibebojuf.pdf
    • https://s3.amazonaws.com/boduxatavepe/how_do_you_cook_a_roast_in_an_electric_skillet.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fbfc.bin
c4b3f40721f35e09563430dfe563e24da04a1275d78b0065df01d92ffca49c90
pdf-font-stream PDF embedded font (sfnt) at offset 0xFBFC 5728 bytes