PDF static analysis report

Static analysis result for SHA-256 aefc9eded60f2457…

SUSPICIOUS

PDF

76.8 KB Created: 2021-04-04 09:07:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: be9e1d9660e989efbe041970d5ca4a1e SHA-1: 153d56cc7af0171b7d22a08f9da604e4480c8f97 SHA-256: aefc9eded60f245755774508607b24b1fdf994725d11f07febe1b358fe821e2a
36 Risk Score

Malware Insights

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

This PDF document was flagged as suspicious by an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 3

  • 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://mezovuduw.ru/award?keyword=assumptions+of+capital+structure+theories+pdf PDF link annotation
    • http://procripton.com/difuliputarewefelewutuduj27dl.pdfIn PDF document text
    • http://zuregazezoral.mygamesonline.org/bm_sharma_physics_download.pdfIn PDF document text
    • http://nejevefivi.mypressonline.com/rerufufojopobulededafeto.pdfIn PDF document text
    • http://kieverts.xyz/41962138110bs47u.pdfIn PDF document text
    • http://norikaloro.mywebcommunity.org/31813298625.pdfIn PDF document text
    • http://votixibutiro.medianewsonline.com/string_theory_david_foster_wallace.pdfIn PDF document text
    • http://xovijezup.mywebcommunity.org/mufizigob.pdfIn PDF document text
    • http://appeal-ig.com/sujadibeqj.pdfIn PDF document text
    • http://goladelexugezi.sportsontheweb.net/53050785040.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/rijaliwiguvex/zowaxekid.pdfIn PDF document text
    • https://s3.amazonaws.com/tezofuretejom/kogolegamopelur.pdfIn PDF document text
    • https://s3.amazonaws.com/kasuwevovog/81344168968.pdfIn PDF document text
    • http://wawikoduvebakap.onlinewebshop.net/lab_equipment_worksheet_answer_key.pdfIn PDF document text
    • http://faleferesevo.onlinewebshop.net/tixoronekivojuveguvidusa.pdfIn PDF document text
    • http://fijexagag.epizy.com/how_to_draw_101_cartoon_characters.pdfIn PDF document text
    • https://s3.amazonaws.com/batoragubukepo/2954899033.pdfIn PDF document text
    • http://deguwesipi.rf.gd/xusedexiwupolofapu.pdfIn PDF document text
    • http://miseparasunafit.rf.gd/borderline_personality.pdfIn PDF document text
    • https://s3.amazonaws.com/midaguvimabof/environmental_impact_assessment.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_off0000efe0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFE0 5384 bytes
SHA-256: 932c44a1a265d2d6c3467498371aeb0c694e8823d13e15c51526b554db92c9fd
font_01_sfnt_off00010201.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10201 10492 bytes
SHA-256: a8ef0fd3e739f900e7bd5ba19e8975fef8564944f718d26acd8b89c67ec4f82a