Malicious PDF — malware analysis report

Static analysis result for SHA-256 24216beb62283db5…

MALICIOUS

PDF

62.9 KB Created: 2021-04-18 13:53:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b2872872c67eefac476508ba9391405a SHA-1: aa5b037661c84b5ae6ba747253db0605c35d70f8 SHA-256: 24216beb62283db5bb81b67afd4bdff6da332c80419ac28dcac52375b16e8cad
124 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which are hosted on disposable domains or link farms, indicating a potential attempt to manipulate search engine results or redirect users to malicious content. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of numerous external links suggests a pattern of directing users to potentially harmful resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8125

Heuristics 4

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://jumiwimov.ru/strik?utm_term=is+there+another+book+after+written+in+my+own+heart%2527s+blood
    • https://cdn.sqhk.co/lesebonun/r7hfbii/37_marble_solitaire_solution.pdf
    • https://kuvikopar.weebly.com/uploads/1/3/4/8/134870245/nikabax-tudagojodilamo-duzile.pdf
    • http://gnoogle.site/lenerisevagidizavamusubokur0rt.pdf
    • https://jigotofobab.weebly.com/uploads/1/3/5/3/135300724/058aca3abe.pdf
    • http://nudistoff.club/zomivasukexusokosisavakoikjiw.pdf
    • http://shoop-fn.ru/pacific_volkswagen_service_department3zh4z.pdf
    • https://xijeruwenuvu.weebly.com/uploads/1/3/4/0/134018409/fusima-jilota.pdf
    • https://cdn.sqhk.co/nupozifulija/ji0ggjC/converting_between_metric_units_worksheet.pdf
    • https://zukutalemuz.weebly.com/uploads/1/3/4/5/134582669/9630986.pdf
    • https://cdn.sqhk.co/norejasiwiza/iyvuVji/anime_live_wallpapers_mac.pdf
    • https://nutagabe.weebly.com/uploads/1/3/5/3/135325028/kewubepiki.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://3ced707c-20bd-49bb-93f1-edb15be4e391.filesusr.com/ugd/e90305_292e8379f0a4401b855fe4d96e9ec578.pdf?index=true
    • https://78e27e65-9996-4239-a63d-7a21722db537.filesusr.com/ugd/03f576_f4818d9a85ce445193f2570eedcf2c54.pdf?index=true
    • https://27158da8-170d-48ca-a528-b8ced62fe517.filesusr.com/ugd/9fc8c3_c91faacd3bf84b2593bdfce47e1d6dd0.pdf?index=true
    • https://b1706aec-e9b1-4c6c-9a93-f14ef4a1c402.filesusr.com/ugd/3b47cb_101dfd60dd1b4a209d2f46e5d2ee44bb.pdf?index=true
    • https://uploads.strikinglycdn.com/files/46a4b80f-821f-4341-a52b-28aab2f75518/how_to_change_time_on_casio_watch_aq-s810w.pdf
    • https://uploads.strikinglycdn.com/files/414ca4c5-5715-4ad4-8cf4-ec957c94b744/80424336292.pdf
    • https://uploads.strikinglycdn.com/files/0d5e7406-cf3b-4223-a2e0-7c2d3107130e/major_scale_guitar_chords_chart.pdf
    • https://17c3d818-7f64-4152-976a-2fa997d7a7be.filesusr.com/ugd/e2c250_b70edf9fc2ce4389a59a85d37719a16b.pdf?index=true
    • https://uploads.strikinglycdn.com/files/dfd9278b-1673-48f6-8b01-9bc023c628bd/86974497995.pdf
    • https://uploads.strikinglycdn.com/files/5ed3e336-82b5-47d1-8182-dd4c0e93e11b/how_to_score_reading_fluency.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ece6.bin
e93a7b0a03736870c989735ec4389d477504f64ed0522bf20ee3dc82ba5365c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xECE6 5516 bytes

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