Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed913114812255fd…

MALICIOUS

PDF

34.6 KB Created: 2021-07-01 23:39:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 323de9d070d8d0340df92d3a8867e437 SHA-1: 310e84d06d25fb589189eda5feab104b408acc15 SHA-256: ed913114812255fd2c87d614262b5a795773b972e2200495190d361193b6d735
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a 'link farm' heuristic suggests it is designed to direct users to external sites. The document body and extracted URLs indicate a lure related to game hacks and cheats for popular titles like Roblox and Coin Master. The ML classifier strongly flagged this PDF as malicious, indicating a high likelihood of it being used for malicious purposes, such as distributing malware or phishing for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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-prison-life-wall-hack-game-hack
    • http://stiepariperpus.web.id/sarjana/repository/coin-master-free-coins-and-spins_GM406889139.pdf
    • http://stiepariperpus.web.id/sarjana/repository/roblox-how-to-use-cheat-engine-2021_GM431946152.pdf
    • http://stiepariperpus.web.id/sarjana/repository/best-free-clothes-creators-roblox_GM431946152.pdf
    • http://stiepariperpus.web.id/sarjana//repository/coin-master-attack-madness-hack_GM406889139.pdf
    • http://stiepariperpus.web.id/sarjana/repository/how-to-hack-in-roblox-plates-of-fate_GM431946152.pdf
    • http://stiepariperpus.web.id/sarjana/repository/all-coin-master-spin-link-and-free-download_GM406889139.pdf
    • http://stiepariperpus.web.id/sarjana/repository/how-to-get-minecraft-for-free-on-pc_GM479516143.pdf
    • http://stiepariperpus.web.id/sarjana//repository/coin-master-hack-without-root_GM406889139.pdf
    • http://stiepariperpus.web.id/sarjana/repository/download-apps-for-robux_GM431946152.pdf
    • http://stiepariperpus.web.id/sarjana/repository/hack-para-dragon-ball-rage-roblox-2021_GM431946152.pdf
    • http://stiepariperpus.web.id/sarjana//repository/is-there-a-free-version-of-minecraft_GM479516143.pdf
    • http://stiepariperpus.web.id/sarjana/repository/minecraft-survival-hacks_GM479516143.pdf
    • http://stiepariperpus.web.id/sarjana//repository/coin-master-mod-apk-free-download_GM406889139.pdf
    • http://stiepariperpus.web.id/sarjana/repository/roblox-games-for-free-for-kids_GM431946152.pdf
    • http://stiepariperpus.web.id/sarjana//repository/minecraft-free-no-download_GM479516143.pdf
    • http://stiepariperpus.web.id/sarjana/repository/cheat-codes-desert-treasure-quest-for-on-roblox_GM431946152.pdf
    • http://stiepariperpus.web.id/sarjana//repository/minecraft-servers-that-allow-hacks_GM479516143.pdf
    • http://stiepariperpus.web.id/sarjana/repository/hacking-egg-roblox_GM431946152.pdf
    • http://stiepariperpus.web.id/sarjana/repository/how-to-get-free-cape-roblox_GM431946152.pdf
    • http://stiepariperpus.web.id/sarjana/repository/free-spins-on-coin-master-app_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003024.bin
21a06acce42ba0d56039f71ccb46432ba03b9ecb51a1b0d0b37b0f990a1ed5f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3024 22476 bytes
font_01_sfnt_off000061d5.bin
a82f839daff57daf40f677c58c5acbce7dbd86e7ef8f8e5aa6a4b9f547c3c067		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61D5 19128 bytes

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