Malicious PDF — malware analysis report

Static analysis result for SHA-256 2076f44d2ef11ce2…

MALICIOUS

PDF

34.9 KB Created: 2021-06-29 16:15:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 4538fdf42a0016f3926d8da81a48989d SHA-1: 099858b97c272d8e77d4700364009871c1f4825b SHA-256: 2076f44d2ef11ce259e3d8ba340deebb799eff1191b5f52ddf5fa0dd06bbe675
102 Risk Score

Malware Insights

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

This PDF document contains numerous embedded links, many of which are SEO-optimized and point to sites offering game-related cheats and virtual currency. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of such links, suggesting a malicious attempt to drive traffic to potentially harmful sites. The presence of a 'download button' lure further supports the idea that the document is designed to trick users into clicking these links, likely to download malware or engage in scams.

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/free-roblox-gift-card-numbers-game-hack
    • http://psb.sd-alazhar29.sch.id/repository/coin-master-free-spins-android_GM406889139.pdf
    • http://psb.sd-alazhar29.sch.id/repository/wie-kann-mann-hacken-in-roblox_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/who-to-get-free-robux_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/how-to-get-free-roblox-hair_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/get-coin-master-cards-free_GM406889139.pdf
    • http://psb.sd-alazhar29.sch.id/repository/how-to-get-minecraft-coins-for-free_GM479516143.pdf
    • http://psb.sd-alazhar29.sch.id/repository/free-robux-codes-2021-real_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/hack-roblox-gratuito_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/how-to-get-free-robux-suite_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/roblox-robux-generator-2021_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/roblox-developer-console-hack_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/how-to-get-cheat-engine-on-roblox_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/app-for-free-spins-on-coin-master_GM406889139.pdf
    • http://psb.sd-alazhar29.sch.id/repository/free-robux-codes-generator_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdf
    • http://psb.sd-alazhar29.sch.id/repository/oprewards-com-robux_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/how-to-hack-roblox-accounts-for-robux_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/free-girl-hair-roblox_GM431946152.pdf
    • http://psb.sd-alazhar29.sch.id/repository/coin-master-hack-no-survey-or-verification_GM406889139.pdf
    • http://psb.sd-alazhar29.sch.id/repository/free-robux-games-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_off00003034.bin
33dd8532a232f9877f309397161a3e3a4ddb20ec6e0378780cbf75b4766acac0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3034 22552 bytes
font_01_sfnt_off00006272.bin
718b9f50ed5b0d966682deb4ef73e04098d9c5c79eb144aa760464ee9fdcfe5c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6272 19448 bytes

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