Malicious PDF — malware analysis report

Static analysis result for SHA-256 af137a037f498265…

MALICIOUS

PDF

34.7 KB Created: 2021-07-04 09:33:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 747b61785e4db38166dd926512cde762 SHA-1: a8b662f0f44bb0ff4d00e3edf8c4f5e9867124fa SHA-256: af137a037f498265f9f5a345b1915c9f275b6c160a853e26c0c1000d808e9b59
62 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs, including one pointing to a raw IP address, all related to game cheats and hacks. The ML classifier strongly flagged this PDF as malicious, and the presence of a download button lure suggests an attempt to trick the user into downloading a payload. No scripts were extracted, but the overall pattern indicates a phishing or social engineering attempt to deliver malware.

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-free-games-no-download-game-hack
    • http://111.68.26.74/widyapustaka/repository/how-to-get-cool-gear-in-roblox-free_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-robux-2021-survay-pc_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/google-site-roblox-hack-get-free-robux-right-now-online_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/mine-minecraft-games-for-free_GM479516143.pdf
    • http://111.68.26.74/widyapustaka/repository/is-there-a-way-to-get-free-pokeballs-in-pokemon-go_GM1094591345.pdf
    • http://111.68.26.74/widyapustaka/repository/roblox-cheats-for-name_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/how-to-use-cheat-engine-in-roblox-snow-shoveling-simulator_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/neighbourhood-roblox-money-hack-pastebin_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/roblox-weight-simulator-hack_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/coin-master-free-blogspot_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/dungeon-quest-roblox-farming-hack_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/infinite-essence-roblox-booga-booga-hack-2021-october_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/watch-videos-for-robux_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-robux-no-verification-2021_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/can-pokemon-go-free-account-2021_GM1094591345.pdf
    • http://111.68.26.74/widyapustaka/repository/pig-master-free-spins-and-coins_GM406889139.pdf
    • http://111.68.26.74/widyapustaka/repository/free-clothes-on-roblox-hack_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-download-roblox-robux-hack_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-robux-generator-online-no-survey_GM431946152.pdf
    • http://111.68.26.74/widyapustaka/repository/free-gamepass-roblox-scripts-site-v3rmillionnet_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003255.bin
0bd488f3ea7c1bf38aa8be1da7723f937692709c4cfbde0f22aa87f5000a6ef8
pdf-font-stream PDF embedded font (sfnt) at offset 0x3255 22244 bytes
font_01_sfnt_off00006331.bin
f422f5a404d69563e9848364457805cf09bb367a1ef3b435fab4dae7c96e7f32
pdf-font-stream PDF embedded font (sfnt) at offset 0x6331 18840 bytes