Analysis

  • max time kernel
    117s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    25/12/2023, 06:17

General

  • Target

    0afaeef479f93bdc60bb639b18f60eca.exe

  • Size

    95KB

  • MD5

    0afaeef479f93bdc60bb639b18f60eca

  • SHA1

    6e3c3d58bf88f80242c720c66fb93115e138724a

  • SHA256

    49bf9b104775088fe07e2f26ced8367189952df95575ad244a15fc593190f775

  • SHA512

    1718225859f9ed5b92c08e9664e7fca9b08f2047bf85e9dc2e32f230318dd56f297508c93adc1cf269b5371c985994b029d74e418091cf563d5810e964ce5d06

  • SSDEEP

    1536:KFFusSx9qYMhdFHS8qdydo3nTzhYxJA+CwNUtBZVY9v8pr9bwLFk0D6A:KLS4jHS8q/3nTzePCwNUh4E92Fk0uA

Malware Config

Signatures

  • Gh0st RAT payload 5 IoCs
  • Gh0strat

    Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

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

  • Drops file in System32 directory 2 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 18 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0afaeef479f93bdc60bb639b18f60eca.exe
    "C:\Users\Admin\AppData\Local\Temp\0afaeef479f93bdc60bb639b18f60eca.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:3064
    • \??\c:\users\admin\appdata\local\gtihbnjsmr
      "C:\Users\Admin\AppData\Local\Temp\0afaeef479f93bdc60bb639b18f60eca.exe" a -sc:\users\admin\appdata\local\temp\0afaeef479f93bdc60bb639b18f60eca.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:808
  • C:\Windows\SysWOW64\svchost.exe
    C:\Windows\SysWOW64\svchost.exe -k netsvcs
    1⤵
    • Loads dropped DLL
    • Writes to the Master Boot Record (MBR)
    • Drops file in System32 directory
    • Checks processor information in registry
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1960

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\gtihbnjsmr

    Filesize

    92KB

    MD5

    86dd31907042310a3be4c1c621b46864

    SHA1

    9b3f40bebd693cad471854141d220f5d7e149a24

    SHA256

    9d688b09be98e3d145c31ec0406570382c61245a9d4456fd8d04d7d61b34b1ed

    SHA512

    6df102e71bcce545fbdaacdda3294e865af6cfb4e809b92286f0a3a97fb64cb843935fb0b894a7dd9a587c8ad086497300701861166a46010379c261514f2857

  • C:\Users\Admin\AppData\Local\gtihbnjsmr

    Filesize

    236KB

    MD5

    e6612d877e554dd7b9819c2ecb72c38e

    SHA1

    4874deaf998cb1845fa490323ebe71e75abe404f

    SHA256

    704089ed18a0a296fdf3caa8d91b1794a93917d3e1e486d3293a359588bd240c

    SHA512

    49983b24d00f83196b810317257aa17fa240d145d867a70802ae2108dab5910913009606f551cd16c3283d3fd4749e26c578466837a4c726635636527bb6852b

  • \??\c:\programdata\application data\storm\update\%sessionname%\gcmul.cc3

    Filesize

    92KB

    MD5

    f50916b5dfc5e14fc4ad68561cae04e9

    SHA1

    87692c43a3d42fbf394beb1fd4e4197373012a49

    SHA256

    3145647b3e5abd701f316db51d20490d984f2c6484168a3660aa718cb9dd7c9d

    SHA512

    19b4550677ac350c2771cc99280bf3e8555131df2f5e184bc68a624c45c393b8655a0ff3ac73992b8e3bd0cc7dbfc7a8613461cf720bbfe5487899e9e73b3d3b

  • \Users\Admin\AppData\Local\gtihbnjsmr

    Filesize

    1.6MB

    MD5

    e3bd46d095b4ab40befdd14e79a4a230

    SHA1

    ca07c88dfa74a93d0c6a0d0c4c4651e073a5b0df

    SHA256

    738c979d787fdad5694b1b5fa7c878d2d3a801e81b4a1c1a00bfe4b02b9eb864

    SHA512

    a69d9a2f1ea132a96f5eb34254ea27824b5074479b12d5c9cdba0e0d3a3f32c7b1ed563c4e4ab2b1d56229029c932f100ecf8ca0c87e9cd4d6314985afd8878a

  • \Users\Admin\AppData\Local\gtihbnjsmr

    Filesize

    579KB

    MD5

    c8a1e4feb33cbfa965be9080b8689d7b

    SHA1

    fe2ded2ceb4331369384a057c24e22402436b0fc

    SHA256

    151dfb4aa22baea836c5fa06f5497f14fb74f2ae37c9692edb88b5973554642b

    SHA512

    c1b5a81f146dac808745e2ae453b8bdac0d7cf472e5b5d5f42b4cc5e5d70f8d1fd350dab877cf778ec31a7e0af08707fb6dba7e44beef38b51be9db460d92db1

  • memory/808-16-0x0000000000400000-0x000000000044E5F0-memory.dmp

    Filesize

    313KB

  • memory/808-13-0x0000000000400000-0x000000000044E5F0-memory.dmp

    Filesize

    313KB

  • memory/808-15-0x0000000000030000-0x0000000000031000-memory.dmp

    Filesize

    4KB

  • memory/808-21-0x0000000000400000-0x000000000044E5F0-memory.dmp

    Filesize

    313KB

  • memory/808-22-0x0000000000400000-0x000000000044E5F0-memory.dmp

    Filesize

    313KB

  • memory/1960-24-0x0000000000330000-0x0000000000331000-memory.dmp

    Filesize

    4KB

  • memory/3064-11-0x0000000000400000-0x000000000044E5F0-memory.dmp

    Filesize

    313KB

  • memory/3064-0-0x0000000000400000-0x000000000044E5F0-memory.dmp

    Filesize

    313KB

  • memory/3064-6-0x0000000000230000-0x000000000027F000-memory.dmp

    Filesize

    316KB