Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed36a8d067034d57…

MALICIOUS

PDF

76.0 KB Created: 2021-03-17 23:03:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 005390d401b1c92ec314c0975b39e43b SHA-1: 7ae969ec172ecb1aa92f1299fff86f16eb7b51cb SHA-256: ed36a8d067034d573802e748daf84295f00b74f5f0ee79c81c40af39b1134bfe
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URI pointing to a suspicious domain, likely intended to host a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, appears to be a lure related to Greek female names.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://vilenefex.ru/strik?utm_term=what+are+some+greek+female+names
    • https://cdn.sqhk.co/vezukefuza/pibvMDZ/werofafelo.pdf
    • https://static.s123-cdn-static.com/uploads/4469358/normal_5fc84df45b97b.pdf
    • https://cdn.sqhk.co/vuveleni/oGJKphg/zombie_games_ps4_dead_island_2.pdf
    • https://cdn-cms.f-static.net/uploads/4452850/normal_601b8cb937e62.pdf
    • http://lebedugipul.mywebcommunity.org/websphere_message_broker_v8_tutorial.pdf
    • http://dizanixagegogin.iblogger.org/goat_simulator_goatville_trophies_ios.pdf
    • http://fejukoturig.medianewsonline.com/how_to_fix_kenmore_washer_leaking_water.pdf
    • https://cdn-cms.f-static.net/uploads/4403688/normal_6046f130ba53d.pdf
    • https://cdn-cms.f-static.net/uploads/4409609/normal_603ad786775e5.pdf
    • https://cdn.sqhk.co/pijujuweg/jcHgHhf/beginner_electric_guitar_kit_guitar_center.pdf
    • https://cdn.sqhk.co/kinanekoxo/jiKejbY/89464621638.pdf
    • http://betabudon.iblogger.org/google_drive_access_denied.pdf
    • http://susarivusu.22web.org/50118419923.pdf
    • https://cdn.sqhk.co/salusasopuvi/iejeMZH/wordscapes_level_1581.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/71399cfd-5095-4a03-be97-43cb2d36d56c/xifojasemutuxemadog.pdf
    • https://uploads.strikinglycdn.com/files/61c166bb-b588-4b78-a02f-05d4b0d7e855/xeraz.pdf
    • http://xomawerowikevof.rf.gd/sogojetusajadaxe.pdf
    • https://uploads.strikinglycdn.com/files/9596dda8-7724-4e45-9ec1-0fd2eec7f607/how_to_program_craftsman_1_2_hp_garage_door_opener_keypad.pdf
    • https://uploads.strikinglycdn.com/files/91dc9f05-f8bb-47d6-9e95-ecc9fa27b5f4/38188501676.pdf
    • https://uploads.strikinglycdn.com/files/3d8bf958-c1c7-4236-93ac-f4fd8e7ca673/pakozibefevizezagok.pdf
    • http://luzeparuzibez.rf.gd/auriculotherapy_manual_free.pdf
    • https://uploads.strikinglycdn.com/files/c184c8b1-fdc1-4609-9e1b-9ccb8e85ef4f/jimuziwejejotutu.pdf
    • https://uploads.strikinglycdn.com/files/cd151289-872f-4a39-b80b-09266a049c3b/xofux.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_off0000eef9.bin
f16a52bfa799a9a216a6aee27dda2b5ab3b3270e2eff73995df598ca4a4d643e
pdf-font-stream PDF embedded font (sfnt) at offset 0xEEF9 5256 bytes
font_01_sfnt_off000100be.bin
abebf307126ea9b31cfc8a769fc383b1610005c96a24a42e54a62416784da4d5
pdf-font-stream PDF embedded font (sfnt) at offset 0x100BE 9860 bytes