Malicious PDF — malware analysis report

Static analysis result for SHA-256 129c1636fc2f794e…

MALICIOUS

PDF

77.3 KB Created: 2021-03-14 03:05:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0e15fb8c4cef14da9eec5046372644e4 SHA-1: 2e608f283bd6e0411209a6d8e34d9f9f2e72d504 SHA-256: 129c1636fc2f794e4072108cb20da2b55199a70571faa0538e36f3f5a0d6dd1c
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a ML classifier and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL that appears to be part of a phishing or malware distribution scheme, masquerading as content related to 'Carrom pool new version'. No scripts were extracted, but the presence of external URIs suggests the document is designed to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://golowaki.ru/123?utm_term=carrom+pool++new+version
    • https://static.s123-cdn-static.com/uploads/4490724/normal_6008b59c93eb5.pdf
    • https://static.s123-cdn-static.com/uploads/4490364/normal_60014fa66f916.pdf
    • https://cdn-cms.f-static.net/uploads/4368503/normal_6010b632430c9.pdf
    • https://static.s123-cdn-static.com/uploads/4476429/normal_5ff6cf0a94215.pdf
    • https://cdn-cms.f-static.net/uploads/4403808/normal_5fe6c0adab2ac.pdf
    • https://cdn.sqhk.co/jexozumumanu/w62whjm/86134354364.pdf
    • https://cdn.sqhk.co/vopunokapire/ibFtfhi/jefakasipokas.pdf
    • https://cdn.sqhk.co/lilomovetum/f9KVgjB/lifuliperefej.pdf
    • https://cdn.sqhk.co/riwifesineji/dfihSzd/htc_weather_wallpaper_apk.pdf
    • https://cdn.sqhk.co/jagibuvat/qrhe5gc/happy_wheels_full_game_download_unblocked.pdf
    • https://cdn.sqhk.co/fosikikevo/Mgizibj/mutofixowu.pdf
    • https://cdn.sqhk.co/xawefigi/hitjdjf/56609598599.pdf
    • http://mafeniwaparidip.22web.org/the_answerer_sword_bg2.pdf
    • https://cdn-cms.f-static.net/uploads/4467322/normal_601245dc01893.pdf
    • https://cdn-cms.f-static.net/uploads/4392452/normal_603d0be3685d7.pdf
    • https://cdn.sqhk.co/leperanurosi/jiatWez/78581265573.pdf
    • http://gojemozuj.22web.org/telangana_janapada_songs_lyrics_in_telugu.pdf
    • https://cdn.sqhk.co/bixatavafut/TiguK4e/dumb_ways_to_die_plush_videos.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://jelelonu.rf.gd/2d_geometry_worksheets_grade_6.pdf
    • http://derajovaku.rf.gd/turbofan_engine_seminar_report.pdf
    • https://s3.amazonaws.com/pewebopufupe/backgammon_set_up.pdf
    • https://s3.amazonaws.com/gajabedafot/training_schedule_template_excel_free.pdf
    • https://s3.amazonaws.com/dezajok/kitevezedoguzo.pdf
    • http://xorikija.epizy.com/cheat_engine_android_7._0.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_off0000f03e.bin
7eee14193c06e3e4a931a2260b1aedc1725f10c312de11f1de2879c1314757c1
pdf-font-stream PDF embedded font (sfnt) at offset 0xF03E 5020 bytes
font_01_sfnt_off00010149.bin
6bd517aa002f753ce28d0f7c28d4fa884f1a3ff1e59479624813d10199beb0b7
pdf-font-stream PDF embedded font (sfnt) at offset 0x10149 11148 bytes