Malicious PDF — malware analysis report

Static analysis result for SHA-256 25732a246006a52b…

MALICIOUS

PDF

77.5 KB Created: 2021-04-02 05:47:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 698bf3d52f6b11e83f6b01d023b426a3 SHA-1: 70cf4dbb8297b99a794a96ff8c799bd6b9ed5477 SHA-256: 25732a246006a52b58b8d009895023716b2aa06c0b2809ffba8c83f8872ed8f3
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, identified by ML classifiers and ClamAV as malicious. The document body, though heavily obfuscated, suggests a lure related to a 'guide'. The presence of multiple embedded URLs indicates a phishing or malware distribution attempt, likely using the document as a lure to direct users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://vilenefex.ru/wix?keyword=wayward+souls+warrior+guide
    • https://cdn.sqhk.co/ranetixeba/foGKiaX/tn_hd_tamil_movies_2019_free_download.pdf
    • http://vuwimoxit.mygamesonline.org/68360559212.pdf
    • http://metiwizonud.getenjoyment.net/21888975586.pdf
    • https://cdn.sqhk.co/mukujoripu/hQhajeO/lottery_scratcher_scanner_app.pdf
    • http://zoxodur.sportsontheweb.net/2006_mercury_25_hp_4_stroke_specs.pdf
    • http://govovimifakine.mywebcommunity.org/alejandra_stamateas_libros.pdf
    • http://korecos.ru/20569837145p9zy5.pdf
    • https://cdn-cms.f-static.net/uploads/4410985/normal_6036994e306e5.pdf
    • http://bcpzonasegurape2-viabcp.com/hp_deskjet_9800_change_ink_cartridgeu2wat.pdf
    • https://cdn.sqhk.co/kupuruvew/b0XqH9G/birdman_nba_tattoos.pdf
    • https://cdn.sqhk.co/fagijopi/jFhfWih/wagomesatazawoxa.pdf
    • https://static.s123-cdn-static.com/uploads/4383704/normal_5ff0b14e34eae.pdf
    • https://static.s123-cdn-static.com/uploads/4455183/normal_6000a12a69b35.pdf
    • https://cdn.sqhk.co/moturalogupe/g2IYubA/dr_driving_2_game_download_apk.pdf
    • https://static.s123-cdn-static.com/uploads/4489422/normal_5ff9785f14b58.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://e7f45dcf-1957-410e-85b1-216e85a225c4.filesusr.com/ugd/a2c2bc_589560237a8146fb8438254619f3a88f.pdf?index=true
    • https://9e2bb560-353e-4f5d-a08b-1363560edab4.filesusr.com/ugd/6c032c_150cf7e9098e4b08b6aa3d414ef742ee.pdf?index=true
    • https://06ebba1c-c738-45d4-b58d-83edbdcc9420.filesusr.com/ugd/b14caa_55269a025b5849d3817d67474b5e9517.pdf?index=true
    • https://571cbd0a-ba82-408d-be6d-2df53a8fcfe5.filesusr.com/ugd/02af14_fe94a838c72e454e8a2c1bc9adb493c1.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f365.bin
d9d36dac83b528303b88030de67da23013e6b97ecbbb17a04e7c0ef633bea795
pdf-font-stream PDF embedded font (sfnt) at offset 0xF365 5200 bytes
font_01_sfnt_off00010544.bin
9a2dc451af4964fcc056885f46acd44012f68d7f6e46371d266d7fbc13a55c34
pdf-font-stream PDF embedded font (sfnt) at offset 0x10544 10440 bytes