Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 14:26

General

  • Target

    tmp.exe

  • Size

    4MB

  • MD5

    dff5313b59c0e94087e4bc9240cfc6f9

  • SHA1

    c838c95ed8f85f3169800b7f3bd3bb50d0541f86

  • SHA256

    f8e35ada103eae2edb782f046feb0557b6c2c0ea0d36459f549916e0ba12b708

  • SHA512

    a2a922e341b50c7a019f5f5758e8644f013933a5ffc17acfbbbe33b02cd06e07d94b57b4cd9b0e248e5300f4baea99a0108b87d731c311ead87d63947300eacc

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 15 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 2 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 4 IoCs
  • Suspicious use of SendNotifyMessage 4 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    1⤵
    • Loads dropped DLL
    • Writes to the Master Boot Record (MBR)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1096
    • C:\Users\Admin\AppData\Local\Temp\7za.exe
      "C:\Users\Admin\AppData\Local\Temp\\7za.exe" x "C:\Users\Admin\AppData\Local\Temp\\downloader.7z" -o"C:\Users\Admin\AppData\Local\Temp\" -aoa
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1364
    • C:\Users\Admin\AppData\Local\Temp\download\MiniThunderPlatform.exe
      "C:\Users\Admin\AppData\Local\Temp\download\MiniThunderPlatform.exe" -StartTP
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Writes to the Master Boot Record (MBR)
      PID:1700

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Bootkit

1
T1067

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\7za.exe
    Filesize

    736KB

    MD5

    ea1ee87d7eb2d36ba9fdcf24263cd528

    SHA1

    ff22c6ac17187c0af8155000d1937cd6f5a5b34d

    SHA256

    9706c2ddd91e24317de3ba2f0c3deddf5424384e32b2cfd39ffd3a74c05f5ff9

    SHA512

    2f31f9c47fbaa97a994e1dcb149921d515ad2408ee0fa0a016e5e173569b96ef27e2cfd5af4e86e622276e509dea3fdff8469284d60a69ee270c35100b7422cc

  • C:\Users\Admin\AppData\Local\Temp\DlMgr.dll
    Filesize

    181KB

    MD5

    1341d73573697c6af12d21911f913511

    SHA1

    d48fedeea2cc8c60c3518af8741c7c9b0bad4f32

    SHA256

    295dcdb341098c8f1e402845b02d158cfe8543acfe651c06ce5e1845bead7b03

    SHA512

    d937cfbbfc2b3252b7c078d7a0ae91a06fe4495dd9ebb116c5c68302f8819d71a3f8d0a017e31ef4447d7aa758f450873ddd3c36237bd3aea470aba68652c0bf

  • C:\Users\Admin\AppData\Local\Temp\download\ATL71.DLL
    Filesize

    87KB

    MD5

    79cb6457c81ada9eb7f2087ce799aaa7

    SHA1

    322ddde439d9254182f5945be8d97e9d897561ae

    SHA256

    a68e1297fae2bcf854b47ffa444f490353028de1fa2ca713b6cf6cc5aa22b88a

    SHA512

    eca4b91109d105b2ce8c40710b8e3309c4cc944194843b7930e06daf3d1df6ae85c1b7063036c7e5cd10276e5e5535b33e49930adbad88166228316283d011b8

  • C:\Users\Admin\AppData\Local\Temp\download\MSVCP71.dll
    Filesize

    492KB

    MD5

    a94dc60a90efd7a35c36d971e3ee7470

    SHA1

    f936f612bc779e4ba067f77514b68c329180a380

    SHA256

    6c483cbe349863c7dcf6f8cb7334e7d28c299e7d5aa063297ea2f62352f6bdd9

    SHA512

    ff6c41d56337cac074582002d60cbc57263a31480c67ee8999bc02fc473b331eefed93ee938718d297877cf48471c7512741b4aebc0636afc78991cdf6eddfab

  • C:\Users\Admin\AppData\Local\Temp\download\MSVCR71.dll
    Filesize

    340KB

    MD5

    ca2f560921b7b8be1cf555a5a18d54c3

    SHA1

    432dbcf54b6f1142058b413a9d52668a2bde011d

    SHA256

    c4d4339df314a27ff75a38967b7569d9962337b8d4cd4b0db3aba5ff72b2bfbb

    SHA512

    23e0bdd9458a5a8e0f9bbcb7f6ce4f87fcc9e47c1ee15f964c17ff9fe8d0f82dd3a0f90263daaf1ee87fad4a238aa0ee92a16b3e2c67f47c84d575768edba43e

  • C:\Users\Admin\AppData\Local\Temp\download\MiniThunderPlatform.exe
    Filesize

    258KB

    MD5

    a83ef2375ccc10030e64508e1a802ad4

    SHA1

    58f46307be974f0e2ed2e9115bc1243ba6538e3c

    SHA256

    e3bf11413cefdcd810f047061e70f06a422e22fb36ee66007336c3b28cb073b3

    SHA512

    c6995312041e14b81a63690e2accb7c9e209ecaae092ab8f381d3cfef9be815b0cd07f19a1279ee18b0da96e0fa9ae6efd24ae053215e96d34c4fcd7d8d62f67

  • C:\Users\Admin\AppData\Local\Temp\download\MiniThunderPlatform.exe
    Filesize

    258KB

    MD5

    a83ef2375ccc10030e64508e1a802ad4

    SHA1

    58f46307be974f0e2ed2e9115bc1243ba6538e3c

    SHA256

    e3bf11413cefdcd810f047061e70f06a422e22fb36ee66007336c3b28cb073b3

    SHA512

    c6995312041e14b81a63690e2accb7c9e209ecaae092ab8f381d3cfef9be815b0cd07f19a1279ee18b0da96e0fa9ae6efd24ae053215e96d34c4fcd7d8d62f67

  • C:\Users\Admin\AppData\Local\Temp\download\XLBugHandler.dll
    Filesize

    98KB

    MD5

    92154e720998acb6fa0f7bad63309470

    SHA1

    385817793b9f894ca3dd3bac20b269652df6cbc6

    SHA256

    1845df41da539bca264f59365bf7453b686b9098cc94cd0e2b9a20c74a561096

    SHA512

    37ba81f338af7de7ef2ac6bcf67b3aec96f9b748830ee3c0b152029871f7701e917b94a6b51acd7be6f8f02aea2b25f3b14ced1a218bf4868af04f5207bb5fff

  • C:\Users\Admin\AppData\Local\Temp\download\XLBugReport.exe
    Filesize

    242KB

    MD5

    67c767470d0893c4a2e46be84c9afcbb

    SHA1

    00291089b13a93f82ee49a11156521f13ea605cd

    SHA256

    64f8d68cc1cfc5b9cc182df3becf704af93d0f1cc93ee59dbf682c75b6d4ffc0

    SHA512

    d5d3a96dec616b0ab0cd0586fa0cc5a10ba662e0d5e4de4d849ac62ca5d60ec133f54d109d1d130b5f99ae73e7abfb284ec7d5ba55dca1a4f354c6af73c00e35

  • C:\Users\Admin\AppData\Local\Temp\download\dl_peer_id.dll
    Filesize

    89KB

    MD5

    dba9a19752b52943a0850a7e19ac600a

    SHA1

    3485ac30cd7340eccb0457bca37cf4a6dfda583d

    SHA256

    69a5e2a51094dc8f30788d63243b12a0eb2759a3f3c3a159b85fd422fc00ac26

    SHA512

    a42c1ec5594c6f6cae10524cdad1f9da2bdc407f46e685e56107de781b9bce8210a8cd1a53edacd61365d37a1c7ceba3b0891343cf2c31d258681e3bf85049d3

  • C:\Users\Admin\AppData\Local\Temp\download\download_engine.dll
    Filesize

    3MB

    MD5

    3c2b7b3ff7de18fe47a77b712ff00a00

    SHA1

    6d1768acfdee1efb942ef3c28934e127659125ef

    SHA256

    4360f3b0dc6ae9aa5b7fb6a6e170e09505bf01df3e42846f2e5270d186f9fa06

    SHA512

    6a795af49d14bcd8fb37a2d36788e226f0f4a040a46c7bbb683fc2b8f4eb18d60b992ea414a89f4ed8020c6b2235c1e490e2924b935e24649a81f890ae78cfce

  • C:\Users\Admin\AppData\Local\Temp\download\id.dat
    Filesize

    44B

    MD5

    86092aebe0515cc017bc94d41ec484d7

    SHA1

    faf2ae219e716bb657a9efe7e110a505a669acc9

    SHA256

    f777dbd890ca94566d95d21d0398bff7c52f2d8c8825218322910d7b913687ce

    SHA512

    bce95deabef04d2c3ebf85fa8ea9b2a2739bbac89d803316273cfb56dc08b5090d91b20296363b0ccfd427bc7448a717393490f3b11b50420c03c7cf918b0323

  • C:\Users\Admin\AppData\Local\Temp\download\zlib1.dll
    Filesize

    58KB

    MD5

    89f6488524eaa3e5a66c5f34f3b92405

    SHA1

    330f9f6da03ae96dfa77dd92aae9a294ead9c7f7

    SHA256

    bd29d2b1f930e4b660adf71606d1b9634188b7160a704a8d140cadafb46e1e56

    SHA512

    cfe72872c89c055d59d4de07a3a14cd84a7e0a12f166e018748b9674045b694793b6a08863e791be4f9095a34471fd6abe76828dc8c653be8c66923a5802b31e

  • C:\Users\Admin\AppData\Local\Temp\downloader.7z
    Filesize

    1MB

    MD5

    50a4726d12aed1ccea812c928f625cc6

    SHA1

    7adc625d70adbc685d7363cafcd9781ea7fbbc11

    SHA256

    f8efe43c4635d278041d4c41f098827ab79189c16df93203a5f13c31d5019527

    SHA512

    f2140c1cd49b56a170aef22267f2621c8d790b3cd95f4d53c5448bf5b029d6b673bbb3ff4477699a59c2405019e63741d16724a655f0c1284c852a0bd0909e61

  • C:\Users\Admin\AppData\Local\Temp\xldl.dll
    Filesize

    242KB

    MD5

    e914a9df187d217c0a1715eaba4eec2a

    SHA1

    db662eab8b2da3bf56821ec23b0c2ed1dc8d9b63

    SHA256

    95934dae479fc68db1e6cc4517ca0bbd5a72b4fc299062cf4033b87f7fe03660

    SHA512

    996e1de053b588b3a8b9e6fb1c8cd3d2fad9c7f26b4a13c486ec95f4fa00aadbba42af2781678aaddbef872fdbb9e7c3d6c02c72b3d8c3833be3e4b007b73818

  • \Users\Admin\AppData\Local\Temp\7za.exe
    Filesize

    736KB

    MD5

    ea1ee87d7eb2d36ba9fdcf24263cd528

    SHA1

    ff22c6ac17187c0af8155000d1937cd6f5a5b34d

    SHA256

    9706c2ddd91e24317de3ba2f0c3deddf5424384e32b2cfd39ffd3a74c05f5ff9

    SHA512

    2f31f9c47fbaa97a994e1dcb149921d515ad2408ee0fa0a016e5e173569b96ef27e2cfd5af4e86e622276e509dea3fdff8469284d60a69ee270c35100b7422cc

  • \Users\Admin\AppData\Local\Temp\DlMgr.dll
    Filesize

    181KB

    MD5

    1341d73573697c6af12d21911f913511

    SHA1

    d48fedeea2cc8c60c3518af8741c7c9b0bad4f32

    SHA256

    295dcdb341098c8f1e402845b02d158cfe8543acfe651c06ce5e1845bead7b03

    SHA512

    d937cfbbfc2b3252b7c078d7a0ae91a06fe4495dd9ebb116c5c68302f8819d71a3f8d0a017e31ef4447d7aa758f450873ddd3c36237bd3aea470aba68652c0bf

  • \Users\Admin\AppData\Local\Temp\download\MiniThunderPlatform.exe
    Filesize

    258KB

    MD5

    a83ef2375ccc10030e64508e1a802ad4

    SHA1

    58f46307be974f0e2ed2e9115bc1243ba6538e3c

    SHA256

    e3bf11413cefdcd810f047061e70f06a422e22fb36ee66007336c3b28cb073b3

    SHA512

    c6995312041e14b81a63690e2accb7c9e209ecaae092ab8f381d3cfef9be815b0cd07f19a1279ee18b0da96e0fa9ae6efd24ae053215e96d34c4fcd7d8d62f67

  • \Users\Admin\AppData\Local\Temp\download\MiniThunderPlatform.exe
    Filesize

    258KB

    MD5

    a83ef2375ccc10030e64508e1a802ad4

    SHA1

    58f46307be974f0e2ed2e9115bc1243ba6538e3c

    SHA256

    e3bf11413cefdcd810f047061e70f06a422e22fb36ee66007336c3b28cb073b3

    SHA512

    c6995312041e14b81a63690e2accb7c9e209ecaae092ab8f381d3cfef9be815b0cd07f19a1279ee18b0da96e0fa9ae6efd24ae053215e96d34c4fcd7d8d62f67

  • \Users\Admin\AppData\Local\Temp\download\MiniThunderPlatform.exe
    Filesize

    258KB

    MD5

    a83ef2375ccc10030e64508e1a802ad4

    SHA1

    58f46307be974f0e2ed2e9115bc1243ba6538e3c

    SHA256

    e3bf11413cefdcd810f047061e70f06a422e22fb36ee66007336c3b28cb073b3

    SHA512

    c6995312041e14b81a63690e2accb7c9e209ecaae092ab8f381d3cfef9be815b0cd07f19a1279ee18b0da96e0fa9ae6efd24ae053215e96d34c4fcd7d8d62f67

  • \Users\Admin\AppData\Local\Temp\download\MiniThunderPlatform.exe
    Filesize

    258KB

    MD5

    a83ef2375ccc10030e64508e1a802ad4

    SHA1

    58f46307be974f0e2ed2e9115bc1243ba6538e3c

    SHA256

    e3bf11413cefdcd810f047061e70f06a422e22fb36ee66007336c3b28cb073b3

    SHA512

    c6995312041e14b81a63690e2accb7c9e209ecaae092ab8f381d3cfef9be815b0cd07f19a1279ee18b0da96e0fa9ae6efd24ae053215e96d34c4fcd7d8d62f67

  • \Users\Admin\AppData\Local\Temp\download\XLBugHandler.dll
    Filesize

    98KB

    MD5

    92154e720998acb6fa0f7bad63309470

    SHA1

    385817793b9f894ca3dd3bac20b269652df6cbc6

    SHA256

    1845df41da539bca264f59365bf7453b686b9098cc94cd0e2b9a20c74a561096

    SHA512

    37ba81f338af7de7ef2ac6bcf67b3aec96f9b748830ee3c0b152029871f7701e917b94a6b51acd7be6f8f02aea2b25f3b14ced1a218bf4868af04f5207bb5fff

  • \Users\Admin\AppData\Local\Temp\download\atl71.dll
    Filesize

    87KB

    MD5

    79cb6457c81ada9eb7f2087ce799aaa7

    SHA1

    322ddde439d9254182f5945be8d97e9d897561ae

    SHA256

    a68e1297fae2bcf854b47ffa444f490353028de1fa2ca713b6cf6cc5aa22b88a

    SHA512

    eca4b91109d105b2ce8c40710b8e3309c4cc944194843b7930e06daf3d1df6ae85c1b7063036c7e5cd10276e5e5535b33e49930adbad88166228316283d011b8

  • \Users\Admin\AppData\Local\Temp\download\dl_peer_id.dll
    Filesize

    89KB

    MD5

    dba9a19752b52943a0850a7e19ac600a

    SHA1

    3485ac30cd7340eccb0457bca37cf4a6dfda583d

    SHA256

    69a5e2a51094dc8f30788d63243b12a0eb2759a3f3c3a159b85fd422fc00ac26

    SHA512

    a42c1ec5594c6f6cae10524cdad1f9da2bdc407f46e685e56107de781b9bce8210a8cd1a53edacd61365d37a1c7ceba3b0891343cf2c31d258681e3bf85049d3

  • \Users\Admin\AppData\Local\Temp\download\dl_peer_id.dll
    Filesize

    89KB

    MD5

    dba9a19752b52943a0850a7e19ac600a

    SHA1

    3485ac30cd7340eccb0457bca37cf4a6dfda583d

    SHA256

    69a5e2a51094dc8f30788d63243b12a0eb2759a3f3c3a159b85fd422fc00ac26

    SHA512

    a42c1ec5594c6f6cae10524cdad1f9da2bdc407f46e685e56107de781b9bce8210a8cd1a53edacd61365d37a1c7ceba3b0891343cf2c31d258681e3bf85049d3

  • \Users\Admin\AppData\Local\Temp\download\download_engine.dll
    Filesize

    3MB

    MD5

    3c2b7b3ff7de18fe47a77b712ff00a00

    SHA1

    6d1768acfdee1efb942ef3c28934e127659125ef

    SHA256

    4360f3b0dc6ae9aa5b7fb6a6e170e09505bf01df3e42846f2e5270d186f9fa06

    SHA512

    6a795af49d14bcd8fb37a2d36788e226f0f4a040a46c7bbb683fc2b8f4eb18d60b992ea414a89f4ed8020c6b2235c1e490e2924b935e24649a81f890ae78cfce

  • \Users\Admin\AppData\Local\Temp\download\msvcp71.dll
    Filesize

    492KB

    MD5

    a94dc60a90efd7a35c36d971e3ee7470

    SHA1

    f936f612bc779e4ba067f77514b68c329180a380

    SHA256

    6c483cbe349863c7dcf6f8cb7334e7d28c299e7d5aa063297ea2f62352f6bdd9

    SHA512

    ff6c41d56337cac074582002d60cbc57263a31480c67ee8999bc02fc473b331eefed93ee938718d297877cf48471c7512741b4aebc0636afc78991cdf6eddfab

  • \Users\Admin\AppData\Local\Temp\download\msvcr71.dll
    Filesize

    340KB

    MD5

    ca2f560921b7b8be1cf555a5a18d54c3

    SHA1

    432dbcf54b6f1142058b413a9d52668a2bde011d

    SHA256

    c4d4339df314a27ff75a38967b7569d9962337b8d4cd4b0db3aba5ff72b2bfbb

    SHA512

    23e0bdd9458a5a8e0f9bbcb7f6ce4f87fcc9e47c1ee15f964c17ff9fe8d0f82dd3a0f90263daaf1ee87fad4a238aa0ee92a16b3e2c67f47c84d575768edba43e

  • \Users\Admin\AppData\Local\Temp\download\zlib1.dll
    Filesize

    58KB

    MD5

    89f6488524eaa3e5a66c5f34f3b92405

    SHA1

    330f9f6da03ae96dfa77dd92aae9a294ead9c7f7

    SHA256

    bd29d2b1f930e4b660adf71606d1b9634188b7160a704a8d140cadafb46e1e56

    SHA512

    cfe72872c89c055d59d4de07a3a14cd84a7e0a12f166e018748b9674045b694793b6a08863e791be4f9095a34471fd6abe76828dc8c653be8c66923a5802b31e

  • \Users\Admin\AppData\Local\Temp\xldl.dll
    Filesize

    242KB

    MD5

    e914a9df187d217c0a1715eaba4eec2a

    SHA1

    db662eab8b2da3bf56821ec23b0c2ed1dc8d9b63

    SHA256

    95934dae479fc68db1e6cc4517ca0bbd5a72b4fc299062cf4033b87f7fe03660

    SHA512

    996e1de053b588b3a8b9e6fb1c8cd3d2fad9c7f26b4a13c486ec95f4fa00aadbba42af2781678aaddbef872fdbb9e7c3d6c02c72b3d8c3833be3e4b007b73818

  • memory/1096-54-0x0000000076191000-0x0000000076193000-memory.dmp
    Filesize

    8KB

  • memory/1364-56-0x0000000000000000-mapping.dmp
  • memory/1700-80-0x000000006FFF0000-0x0000000070000000-memory.dmp
    Filesize

    64KB

  • memory/1700-68-0x0000000000000000-mapping.dmp
  • memory/1700-83-0x0000000002500000-0x000000000283E000-memory.dmp
    Filesize

    3MB