Malicious PDF — malware analysis report

Static analysis result for SHA-256 08399032448868f8…

MALICIOUS

PDF

76.1 KB Created: 2021-03-19 11:33:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fa0e20ac4aa04303bd9f4bfb693a0d67 SHA-1: 5966a4b457f5db5a0c14c4b47220a773f3bf3e58 SHA-256: 08399032448868f8fbeab668f0bf6f6166b6997e835485c200d6945e18c17c87
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document body, though partially garbled, suggests a lure related to 'Edinburgh playhouse seating plan pdf'. A critical heuristic identified an external URI pointing to 'https://seumenha.ru/award?keyword=edinburgh+playhouse+seating+plan+pdf', which is likely the primary indicator of compromise and the intended destination for the user.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://seumenha.ru/award?keyword=edinburgh+playhouse+seating+plan+pdf
    • https://dajikapepexav.weebly.com/uploads/1/3/4/5/134597014/9a22a7850b.pdf
    • http://complerbnp.com/brian_tracy_no_excuses_review83ai5.pdf
    • https://cdn-cms.f-static.net/uploads/4471479/normal_60307c86d0f76.pdf
    • https://vafopizinenited.weebly.com/uploads/1/3/4/4/134480139/soratejugubes_gofudatibefug_rasiposajelamer.pdf
    • https://cdn-cms.f-static.net/uploads/4483361/normal_60462f7a29f8d.pdf
    • https://cdn-cms.f-static.net/uploads/4365552/normal_6023f8e33a2d0.pdf
    • http://bufizuz.22web.org/three_billy_goats_gruff_troll_craft.pdf
    • http://kisegojunu.22web.org/carrickfergus_celtic_woman_sheet_music.pdf
    • https://nuribivavis.weebly.com/uploads/1/3/4/6/134625990/gotefarel.pdf
    • https://static.s123-cdn-static.com/uploads/4449622/normal_5fc9a62185b6a.pdf
    • https://pigokujedaxe.weebly.com/uploads/1/3/0/7/130740563/biremorojixefeziw.pdf
    • http://kleomaften.online/benonufezigotivogexetiljcsxo.pdf
    • http://pezesukuju.iblogger.org/knife_gate_valve_3d_model.pdf
    • http://wazojox.iblogger.org/64145603281.pdf
    • https://jewupoma.weebly.com/uploads/1/3/1/4/131437657/2419652.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://kefegaruxofum.rf.gd/renoxamawevan.pdf
    • http://zelekisiwamab.rf.gd/96271997094.pdf
    • http://xedaxabefax.rf.gd/puzupu.pdf
    • http://bovareniwesoz.epizy.com/95458500425.pdf
    • http://fuvituze.epizy.com/schumann_arabeske_op_18_sheet_music.pdf
    • 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_off0000ec49.bin
6b4d8a05f5d46ed0c4d5a246361f6ffbb4e7c3f35d465044877bddda75ddbe05
pdf-font-stream PDF embedded font (sfnt) at offset 0xEC49 5500 bytes
font_01_sfnt_off0000fefb.bin
69a75519b2d5eebd06b77c9fb6cc7306b3f2e9cba973d0ae1e0b9cf5879b400e
pdf-font-stream PDF embedded font (sfnt) at offset 0xFEFB 10520 bytes