Malicious PDF — malware analysis report

Static analysis result for SHA-256 25f47d71b73b6129…

MALICIOUS

PDF

161.6 KB Created: 2021-03-15 13:10:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-22
MD5: 7ef2dfdb9ab8852565b58075128bdb6d SHA-1: 28867e2a779e00cbb3d927c5a5f5c1e9f4680ead SHA-256: 25f47d71b73b61295810133d449f212c495f374119c5e96489423ded7ca37c55
64 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs, many pointing to disposable domains, suggesting a link farm or phishing lure. The ML classifier strongly indicated maliciousness. While no scripts were explicitly extracted, the presence of external URIs and the link farm heuristic point towards an attempt to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9844

Heuristics 3

  • 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://mezovuduw.ru/wix?keyword=tropical+rainforest+landscapes+in+the+world PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4494674/normal_5ff90cd9a0112.pdfIn PDF document text
    • http://pedagodogiko.getenjoyment.net/stihl_ms_180_16_in._31.9_cc_gas_chainsaw_reviews.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454684/normal_6044dc7656c20.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376086/normal_6028e7f1a6b2a.pdfIn PDF document text
    • http://rakadan.sportsontheweb.net/viwibiladodijo.pdfIn PDF document text
    • http://pomirkapa.site/offline_videos_youtube_not_workingpacfl.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488130/normal_604af23b58b4a.pdfIn PDF document text
    • http://rolopigabetitu.scienceontheweb.net/toefl_model_question_paper.pdfIn PDF document text
    • http://gamukanemafutu.mywebcommunity.org/88155194763.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385207/normal_5fffaced836a3.pdfIn PDF document text
    • http://canlisohbetim.net/reactants_are_what_goes_into_the_reaction_what_are_the_two_reactants_needed_for_respiration_to_occur27wag.pdfIn PDF document text
    • http://lipazegeboludep.sportsontheweb.net/votililapafikasivul.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://53002a68-e35f-4167-ac88-1ab9777d7e72.filesusr.com/ugd/f5bc2a_cfba0f28ad30453c99996cad19b01ac9.pdf?index=trueIn PDF document text
    • https://200c4c3d-185b-4246-b99f-f40cd7065c99.filesusr.com/ugd/3ed902_26355e5ba246401cb2e3342cd4f6bee8.pdf?index=trueIn PDF document text
    • https://7fd672c9-0ac8-42d3-9d3c-9ebb2fbea2b4.filesusr.com/ugd/92785a_67fb1f98805e4243800b0999308370c0.pdf?index=trueIn PDF document text
    • https://168d2a81-f750-40c6-a653-3787650f980d.filesusr.com/ugd/3bcfef_92b24c9607ba4811acafb1bd6767cfb0.pdf?index=trueIn PDF document text
    • https://3a7b682b-4b85-4b21-836a-a34929c8735b.filesusr.com/ugd/0cd3a8_d3b18e2c0d59490185a37f4314b82998.pdf?index=trueIn PDF document text
    • https://4cd5a77a-be8d-44ba-8952-4177873115c4.filesusr.com/ugd/930050_2a51b06ca06a4ac89a5eee2e2b9fc071.pdf?index=trueIn PDF document text
    • https://83d7d1d1-3661-4158-a2cc-78aa4aa39d08.filesusr.com/ugd/163759_1d96f022b1684c3b8b9fce2cd81da424.pdf?index=trueIn PDF document text
    • https://a9f3490c-def6-45ea-9957-aefa341d54bd.filesusr.com/ugd/84b587_a63ebe4f00564da987ee4c4d850d7334.pdf?index=trueIn PDF document text
    • https://ad323f3e-245e-4e3c-8b16-de91fefec063.filesusr.com/ugd/5ea691_f8b8a967028146b587633bc11ed1b6f4.pdf?index=trueIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00024f3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24F3C 5284 bytes
SHA-256: 860e9fcacc8a5067ba7417da5ef4381e3c9d787d956ab2de13c28c2d85a810a7
font_01_sfnt_off0002613b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2613B 15948 bytes
SHA-256: a7e9255211bcaae3f366d5a9b5f187e1593ac2af0f585b1d4816065ee75276e7

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