PDF static analysis report

Static analysis result for SHA-256 fb3e2265df8364d1…

SUSPICIOUS

PDF

74.6 KB Created: 2021-03-27 09:53:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 60e7fe9b9b64bdf21f75fd46e6522056 SHA-1: 5b8eead18ecefd414ff036102807c77617c6ac55 SHA-256: fb3e2265df8364d1b3a5d85d6837891c2f4ca77846eebd3db8ceca2600aff4ed
44 Risk Score

Malware Insights

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

The PDF document contains embedded URLs, one of which is flagged as suspicious and presented in the context of a job description lure. The ML classifier strongly indicates maliciousness. While no scripts were explicitly extracted, the presence of embedded URLs and the invoice/payment lure heuristic suggest the document is designed to redirect the user to a malicious site, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://kuzutuzo.ru/award?keyword=market+research+analyst+job+description+pdf PDF link annotation
    • https://cdn.sqhk.co/rubuxupab/egi5whh/blocky_highway_runes.pdfIn PDF document text
    • http://medilawibume.scienceontheweb.net/resula.pdfIn PDF document text
    • https://cdn.sqhk.co/toxinize/djiheBa/age_of_empires_2_android_mod_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465264/normal_603fe3ad33c47.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445754/normal_604d9bd99caa3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387408/normal_5fd622ee0e9bf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380539/normal_60085411d2c67.pdfIn PDF document text
    • https://cdn.sqhk.co/tasokuxu/Wwgdjb5/gutscheincode_media_markt_2020.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4489734/normal_5fccef3a6c932.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381095/normal_603e59b730a50.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489056/normal_6016cb9aac4d8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414677/normal_5fc6b4b96569f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387825/normal_5fdc3458697a1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/646ab6b8-7f39-43bd-9109-a9db73dbdd44/honeywell_rth9585wf_installation_without_c_wire.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fd166b34-83ab-4bd2-ba96-8397f4256888/96328818252.pdfIn PDF document text
    • http://dufojamimusim.atwebpages.com/statistics_binomial_distribution_table.pdfIn PDF document text
    • http://litorow.myartsonline.com/5552497982.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3d51055a-234d-4eae-8645-02f307f96df2/2872690246.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d51dca43-38a4-434a-a243-b04361e3a6fd/90691548.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/925db111-b328-4c67-b128-ab75422dc4ed/98407150493.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ca697975-ba9c-418f-a522-9965b04dc1bf/continental_girbau_washer_user_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/03cee975-3dfa-4a46-aefd-34d31b272f65/how_to_get_started_in_foreign_currency_trading.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/160c90e6-e4d2-40a3-ae07-3c1efd92c3df/2551991744.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bfbbc52e-19e1-4763-a60b-a33113e4f237/92909775917.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5a798eda-e314-4600-8278-72c0129c8ebf/nobumazefoxixevi.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In 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_off0000e634.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE634 5628 bytes
SHA-256: f76b388ebea7f12c7d33e55a545fac76ba4ea951840eb5083508291012e0cbee
font_01_sfnt_off0000f96d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF96D 10444 bytes
SHA-256: b863fbdd5fba5c3c674714e5285075ab18c3a9f09431ccf653b559eeb228aba6