Malicious PDF — malware analysis report

Static analysis result for SHA-256 c340639dace036ce…

MALICIOUS

PDF

35.2 KB Created: 2021-07-03 22:46:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 0f49a9f1b4f5c670e8851f9b334eaf92 SHA-1: 0843e2351bd12b728f22249363344ebf77bcccef SHA-256: c340639dace036ce44f95a372c0c77cab37aaacf17fa8e27332a3d94debfa02f
122 Risk Score

Malware Insights

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

The PDF document contains lures for game hacks and cheats, specifically mentioning 'Coin Master Hack Online Without Human Verification'. It also includes a high-severity heuristic firing for a clipboard command execution lure, instructing the user to paste commands into a shell, consistent with ClickFix attacks. The primary IOC is the URL embedded in the document, which likely hosts the secondary payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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/406889139/coin-master-hack-online-without-human-verification-game-hack
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/2021-free-spins-coin-master_GM406889139.pdf
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/get-free-spins-coin-master-2021_GM406889139.pdf
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/free-coins-on-coin-master-generator_GM406889139.pdf
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/free-group-roblox_GM431946152.pdf
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/roblox-ninja-assassin-ninjutsu-hack_GM431946152.pdf
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/free-robux-with-no-human-verification_GM431946152.pdf
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/free-play-for-roblox_GM431946152.pdf
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/rewardex-robux_GM431946152.pdf
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-august-2021_GM431946152.pdf
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/coin-master-heaven-free-spins-link_GM406889139.pdf
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/coin-master-hack-progamers_GM406889139.pdf
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/pubg-uc-yatrma-sitesi_GM1330123889.pdf
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/hack-roblox-rocitizens_GM431946152.pdf
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/how-to-buy-robux-for-free_GM431946152.pdf
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/coin-master-free-spins-2021-app-download_GM406889139.pdf
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/copy-and-paste-to-terminal-robux-hack_GM431946152.pdf
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/coins-master-hack_GM406889139.pdf
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/how-to-get-robux-for-free-2021_GM431946152.pdf
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/how-to-hack-denisdaily-on-roblox_GM431946152.pdf
    • https://elearning.min5bm.sch.id/__statics/gudangsoal/files/level-coin_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003320.bin
4833cadcc1a8a29bc9f8bcd36f6078ae2b849669b889fc08c8bb061775cfc780		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3320 22456 bytes
font_01_sfnt_off00006509.bin
a2f885fda6808f9699d426523b79d429f4c84ebf7d51aba9b1786e138ff088de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6509 18976 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.