Malicious PDF — malware analysis report

Static analysis result for SHA-256 1930942341411a61…

MALICIOUS

PDF

34.4 KB Created: 2021-06-30 03:53:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 7fe1139a4d118a9867411f36fabe87b8 SHA-1: 1f68e3f1600afb235e9e422f4f735643fab3d773 SHA-256: 1930942341411a61c929498d610b13d0c0997305dfd8edc4f58bdc7afcb90939
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links and a lure related to free game hacks and currency, specifically for Roblox. The primary link, http://netcdn.co/app/431946152/free-blue-hair-in-roblox-game-hack, is identified as a redirector to a potential malicious site. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to exploit user interest in game cheats to deliver a payload or redirect to a phishing/malware site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://netcdn.co/app/431946152/free-blue-hair-in-roblox-game-hack PDF link annotation
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-fast-on-computer-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/admin-on-cheat-engine-roblox_GM431946152.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/roblox-free-items-hack-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/how-to-download-roblox-hack-client_GM431946152.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/what-is-a-minecraft-client_GM479516143.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/youtube-how-to-get-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/hack-de-robux-2021-100-real_GM431946152.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/free-roblox-not-scam_GM431946152.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/coin-game_GM406889139.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/roblox-free-clothes-girl_GM431946152.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/how-to-hack-admin-in-roblox-2021_GM431946152.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/coin-master-free-spins-ios_GM406889139.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/hack-coin-master-free_GM406889139.pdfIn PDF document text
    • https://e-learning.man2-kotapadang.sch.id/__statics/gudangsoal/files/can-you-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30AD 22132 bytes
SHA-256: 84f54148967fffe4d220f06bf67d762e709b5bda197e55b583350b325e83db35
font_01_sfnt_off000061cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61CD 18912 bytes
SHA-256: 69690206b1bc63f3ee1f3b2ddbcb7acb6ea37210e0e62d4fc3442f230c688db9

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