Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ae57dd5c5e46b61…

MALICIOUS

PDF

109.2 KB Created: 2021-03-13 13:07:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: e34bbaf987048f526877b1b5e4fb4787 SHA-1: 40598783eea628b105e09b27bf20284bdfeb44a5 SHA-256: 6ae57dd5c5e46b61aecaac2f4742789c1eebe2ea4f73262dc6bb60f6f0debdb6
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, and multiple other URLs are present within the document, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document, likely leveraging a known exploit or social engineering to redirect the user.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 4

  • 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
  • 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://xezojetit.ru/strik?utm_term=allen+ginsberg+howl+poem+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4409102/normal_6005abaf1b163.pdfIn PDF document text
    • http://prostosite.site/rovelixubiv1134.pdfIn PDF document text
    • http://namsinc.info/diehard_portable_power_1150zco3v.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481275/normal_600735f4bcf9f.pdfIn PDF document text
    • https://cdn.sqhk.co/wepunajexiju/V41jijd/59937152708.pdfIn PDF document text
    • https://cdn.sqhk.co/nemuvefik/jcZtsie/war_of_1812_effects_on_manufacturing.pdfIn PDF document text
    • https://cdn.sqhk.co/kisasizaro/ihZxhc9/the_maxx_movie.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416153/normal_602b023cd73b4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460975/normal_5ff7dd8fb0b2d.pdfIn PDF document text
    • http://hamlikjorettoop.ru/gerebosaragorin6e20.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451027/normal_6015c86fe47eb.pdfIn PDF document text
    • https://cdn.sqhk.co/kewawukufiju/geQgjRt/drawing_grid_maker.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/tarajix/budixugezilidaxis.pdfIn PDF document text
    • https://85fc0914-20e3-4f1c-be8c-de7e6f89f47e.filesusr.com/ugd/a44510_ade8020c5f2442ad85b0fa2b0717d047.pdf?index=trueIn PDF document text
    • https://69cf8a46-0d3d-4b71-8fd1-93df925da18e.filesusr.com/ugd/e4064d_08c3cca08d5449fc86adc7c113c4d896.pdf?index=trueIn PDF document text
    • https://968bac2e-1409-45a7-bd11-2c37eba47390.filesusr.com/ugd/c81504_d1f28002db304bc190002c4863e9b73d.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jakujakula/wrong_turn_2_tamil_dubbed_free.pdfIn PDF document text
    • https://s3.amazonaws.com/sinamozagemoger/calidad_de_vida_2019.pdfIn PDF document text
    • https://f7cac2f2-528f-490f-9bef-cb2448a877de.filesusr.com/ugd/529ba0_8a0ef5a4772f4f0db837861a2910bef2.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/wizidimawag/cheppave_chirugali_movie_song.pdfIn PDF document text
    • https://s3.amazonaws.com/suximawo/d_b_college_ka_full_form.pdfIn PDF document text
    • https://72cdfa97-b5fe-44cc-9aa9-3142b5aa642a.filesusr.com/ugd/ee32c9_5bc59bb9ff2c44ac85975f5f9d42607a.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/kimone/45667794398.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_off00016c3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16C3C 5464 bytes
SHA-256: b021535891f783e6de2cee40ebe8eaef4282d7b6e20308bd04e89a7f381f61a6
font_01_sfnt_off00017ebd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17EBD 12560 bytes
SHA-256: ea20d0acc6dc7750198503686fb40f4c39c9725dca3eb178cf965bb4c6591b26

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