Malicious PDF — malware analysis report

Static analysis result for SHA-256 985564930fd5b51c…

MALICIOUS

PDF

34.6 KB Created: 2021-06-19 17:38:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 6034da6016361a5a7f87c75cbbe51965 SHA-1: 80ed07e13e1a2cd713d0cd700b1edb20d5060da2 SHA-256: 985564930fd5b51cc878b862bbad4ae7fbcee44421572dc5d45a4d68b9e5b815
82 Risk Score

Malware Insights

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

The PDF document contains a prominent link and text related to 'free hats on Roblox' and 'game hack', which is a common lure for phishing or malware distribution. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' confirms this, pointing to the URL http://netcdn.co/app/431946152/how-to-get-free-hats-on-roblox-without-inspect-element-game-hack. While no scripts were explicitly extracted, the nature of such lures often involves JavaScript execution within PDFs to redirect users or download further payloads, hence T1059.007 is included as a likely technique.

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/how-to-get-free-hats-on-roblox-without-inspect-element-game-hack PDF link annotation
    • http://lib.stimykpn.ac.id/repository/daily-spin_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/minecraft-bedrock-hacks-windows-10_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-hack-apk-android-1_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-do-you-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/minecraft-ps4-free_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/best-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-free-robux-deutsch_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-robux-youtube_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/save-pikachu-cheat-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-robux-app_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/fulflex-hack-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-roblox-hacks-2021-no-dll_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/lumber-tycoon-2-glitch-to-get-free-robux-robuxian_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/minecraft-hack-app_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/can-a-roblox-exploiter-hack_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-roblox-exploit-2021_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/minecraft-anarchy-server-no-hacks_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-daily-free-spins-blog_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F73 21840 bytes
SHA-256: 5ffb97a1ffb73ce7dddd8656fdf5f9d07e2a796d1e9a7bcce24da4bb8155ad9c
font_01_sfnt_off00005fb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FB1 19980 bytes
SHA-256: 1abc13d4b4263c48153889e897b688dfc17d21a100c17b7e4ccecea81f541c0e

Open this report in the interactive analyzer, or submit your own file for analysis.