Malicious PDF — malware analysis report

Static analysis result for SHA-256 c98aeeafbaa7a871…

MALICIOUS

PDF

35.4 KB Created: 2021-06-19 10:55:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 4ce9c62cade689cb4330ed44314ada4b SHA-1: c47c8f76d3d00a7473c40f7067a18d2b03cf9436 SHA-256: c98aeeafbaa7a871278546141db2c6cb728b5c15d48390275336f9dbadd63891
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF document contains numerous embedded URLs and a document body that explicitly advertises a 'Roblox Robux Hack 2021 No Verification'. The ML classifier strongly flagged this PDF as malicious, and heuristics identified external URIs and a clickable URI pointing to an IP address. These findings indicate the document is designed to trick users into downloading a secondary payload, likely related to game cheating or hacking.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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/roblox-robux-hack-2021-no-verification-game-hack
    • http://103.40.122.33/akasia/repository/urban-network-robux-hack_GM431946152.pdf
    • http://103.40.122.33/akasia/repository/guess-the-drawing-roblox-hack_GM431946152.pdf
    • http://103.40.122.33/akasia/repository/hacker-commands-roblox_GM431946152.pdf
    • http://103.40.122.33/akasia/repository/minecraft-login-free_GM479516143.pdf
    • http://103.40.122.33/akasia/repository/how-to-get-free-robux-on-roblox_GM431946152.pdf
    • http://103.40.122.33/akasia/repository/free-robux-hack-no-human-verification-or-survey_GM431946152.pdf
    • http://103.40.122.33/akasia/repository/roblox-mobile-cheat-codes_GM431946152.pdf
    • http://103.40.122.33/akasia/repository/gametest-roblox-robux-hack_GM431946152.pdf
    • http://103.40.122.33/akasia/repository/roblox-phantom-forces-cheat-1-milion-credit_GM431946152.pdf
    • http://103.40.122.33/akasia/repository/robloxwin-earn-free-robux_GM431946152.pdf
    • http://103.40.122.33/akasia/repository/roblox-free-account-codes_GM431946152.pdf
    • http://103.40.122.33/akasia/repository/pokemon-go-free-lures_GM1094591345.pdf
    • http://103.40.122.33/akasia/repository/free-coins-and-spins-for-coin-master_GM406889139.pdf
    • http://103.40.122.33/akasia/repository/free-robux-without-offers_GM431946152.pdf
    • http://103.40.122.33/akasia/repository/roblox-apocalypse-cheats_GM431946152.pdf
    • http://103.40.122.33/akasia/repository/free-robux-generators-that-actually-works-2021_GM431946152.pdf
    • http://103.40.122.33/akasia/repository/coin-master-free-coins-and-spins-link_GM406889139.pdf
    • http://103.40.122.33/akasia/repository/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.pdf
    • http://103.40.122.33/akasia/repository/free-robux-no-download_GM431946152.pdf
    • http://103.40.122.33/akasia/repository/coin-master-spin-free_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003208.bin
cdc9f68eb2d0f790d3bdb95619b494081d8a05cce8ee72a85498aeea83a4def7
pdf-font-stream PDF embedded font (sfnt) at offset 0x3208 22416 bytes
font_01_sfnt_off000063d8.bin
1f4233ffa0bf4fa49b209af6b897bb8b29a0df667c958f03c402a0c5fe2f5bef
pdf-font-stream PDF embedded font (sfnt) at offset 0x63D8 19556 bytes