Malicious PDF — malware analysis report

Static analysis result for SHA-256 2395f20a5cdc2ee1…

MALICIOUS

PDF

33.9 KB Created: 2021-07-09 09:41:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 792af9613d55642c65cea91f3da53e09 SHA-1: 947eac2c592233cca097fb86503d36f79cd0f3e5 SHA-256: 2395f20a5cdc2ee1fe00dfb6a48409f379272943632185a6402b32059b6f965d
62 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs, many pointing to IP addresses, that are designed to trick users into downloading game-related "hacks" or "free currency." The ML classifier strongly indicated maliciousness, and the presence of external URIs and a download button lure further support this. The document likely serves as a lure to download a second-stage payload.

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.tw/app/479516143/minecraft-pe-apk-free-download-game-hack
    • http://110.232.83.89/slimsppks/repository/games-on-roblox-that-give-you-free-robux-2021_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/free-robux-hack_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/hack-the-game-coin-master_GM406889139.pdf
    • http://110.232.83.89/slimsppks/repository/free-robux-glitch_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/free-coin-master-spins-blog_GM406889139.pdf
    • http://110.232.83.89/slimsppks/repository/free-minecraft-account-list_GM479516143.pdf
    • http://110.232.83.89/slimsppks/repository/free-robux-just-click_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/buxblast-com-robux_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/minecraft-marketplace-free_GM479516143.pdf
    • http://110.232.83.89/slimsppks/repository/games-that-give-you-free-robux_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/free-robux-2021_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/sandbox-roblox-cheats_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/coin-master-hack-2021-android_GM406889139.pdf
    • http://110.232.83.89/slimsppks/repository/free-coin-coin-master_GM406889139.pdf
    • http://110.232.83.89/slimsppks/repository/earn-robux-today_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/free-robux-today_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/coin-master-hacks-xyz_GM406889139.pdf
    • http://110.232.83.89/slimsppks/repository/how-to-earn-free-robux_GM431946152.pdf
    • http://110.232.83.89/slimsppks/repository/free-coins--spins-coin-master_GM406889139.pdf
    • http://110.232.83.89/slimsppks/repository/free-robux-websites-that-actually-work-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002d85.bin
fc4ba4755ebbaee60996ae42c8df77ae5a036f5837cdc930c9d054ee493492cc
pdf-font-stream PDF embedded font (sfnt) at offset 0x2D85 22508 bytes
font_01_sfnt_off00005f78.bin
7b5b97283c99b26de7673800ba150ecfa356c115ac03a12a62777470b154fcb8
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F78 19080 bytes