Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 10:37

General

  • Target

    46228923291ceab1c75887af7394832bbb68bdd840b3d10c7bda8f2f5e85b25a.exe

  • Size

    252KB

  • MD5

    7c77f7a1ebddd9579a7567dedb131a95

  • SHA1

    76aedce6c1483506c33f1cb00cbe72a4f9387427

  • SHA256

    46228923291ceab1c75887af7394832bbb68bdd840b3d10c7bda8f2f5e85b25a

  • SHA512

    3187ca40dd4c3fb9aead5b5eef1682a1128c957a41df1d5d0947b1f666c04737aacbdbb5c7deb9a2fb276a77437b456695f55e8429362fd68de5660e9da82e73

Malware Config

Signatures

  • Gh0st RAT payload 2 IoCs
  • Gh0strat

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

  • UAC bypass 3 TTPs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 5 IoCs
  • Checks whether UAC is enabled 1 TTPs 3 IoCs
  • Drops file in System32 directory 5 IoCs
  • Program crash 1 IoCs
  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • System policy modification 1 TTPs 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\46228923291ceab1c75887af7394832bbb68bdd840b3d10c7bda8f2f5e85b25a.exe
    "C:\Users\Admin\AppData\Local\Temp\46228923291ceab1c75887af7394832bbb68bdd840b3d10c7bda8f2f5e85b25a.exe"
    1⤵
    • Checks whether UAC is enabled
    • Suspicious behavior: RenamesItself
    • System policy modification
    PID:1932
  • C:\ProgramData\Application Data\Microsoft.NET\Eoksc.pif
    "C:\ProgramData\Application Data\Microsoft.NET\Eoksc.pif"
    1⤵
    • Executes dropped EXE
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:2040
    • C:\ProgramData\Application Data\Microsoft.NET\Eoksc.pif
      "C:\ProgramData\Application Data\Microsoft.NET\Eoksc.pif" Win7
      2⤵
      • Executes dropped EXE
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Modifies data under HKEY_USERS
      • Modifies system certificate store
      • System policy modification
      PID:2036
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2040 -s 256
      2⤵
      • Loads dropped DLL
      • Program crash
      PID:1968

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\ProgramData\Application Data\Microsoft.NET\Eoksc.pif

    Filesize

    252KB

    MD5

    7c77f7a1ebddd9579a7567dedb131a95

    SHA1

    76aedce6c1483506c33f1cb00cbe72a4f9387427

    SHA256

    46228923291ceab1c75887af7394832bbb68bdd840b3d10c7bda8f2f5e85b25a

    SHA512

    3187ca40dd4c3fb9aead5b5eef1682a1128c957a41df1d5d0947b1f666c04737aacbdbb5c7deb9a2fb276a77437b456695f55e8429362fd68de5660e9da82e73

  • C:\ProgramData\Microsoft.NET\Eoksc.pif

    Filesize

    252KB

    MD5

    7c77f7a1ebddd9579a7567dedb131a95

    SHA1

    76aedce6c1483506c33f1cb00cbe72a4f9387427

    SHA256

    46228923291ceab1c75887af7394832bbb68bdd840b3d10c7bda8f2f5e85b25a

    SHA512

    3187ca40dd4c3fb9aead5b5eef1682a1128c957a41df1d5d0947b1f666c04737aacbdbb5c7deb9a2fb276a77437b456695f55e8429362fd68de5660e9da82e73

  • C:\ProgramData\Microsoft.NET\Eoksc.pif

    Filesize

    252KB

    MD5

    7c77f7a1ebddd9579a7567dedb131a95

    SHA1

    76aedce6c1483506c33f1cb00cbe72a4f9387427

    SHA256

    46228923291ceab1c75887af7394832bbb68bdd840b3d10c7bda8f2f5e85b25a

    SHA512

    3187ca40dd4c3fb9aead5b5eef1682a1128c957a41df1d5d0947b1f666c04737aacbdbb5c7deb9a2fb276a77437b456695f55e8429362fd68de5660e9da82e73

  • \ProgramData\Microsoft.NET\Eoksc.pif

    Filesize

    252KB

    MD5

    7c77f7a1ebddd9579a7567dedb131a95

    SHA1

    76aedce6c1483506c33f1cb00cbe72a4f9387427

    SHA256

    46228923291ceab1c75887af7394832bbb68bdd840b3d10c7bda8f2f5e85b25a

    SHA512

    3187ca40dd4c3fb9aead5b5eef1682a1128c957a41df1d5d0947b1f666c04737aacbdbb5c7deb9a2fb276a77437b456695f55e8429362fd68de5660e9da82e73

  • \ProgramData\Microsoft.NET\Eoksc.pif

    Filesize

    252KB

    MD5

    7c77f7a1ebddd9579a7567dedb131a95

    SHA1

    76aedce6c1483506c33f1cb00cbe72a4f9387427

    SHA256

    46228923291ceab1c75887af7394832bbb68bdd840b3d10c7bda8f2f5e85b25a

    SHA512

    3187ca40dd4c3fb9aead5b5eef1682a1128c957a41df1d5d0947b1f666c04737aacbdbb5c7deb9a2fb276a77437b456695f55e8429362fd68de5660e9da82e73

  • \ProgramData\Microsoft.NET\Eoksc.pif

    Filesize

    252KB

    MD5

    7c77f7a1ebddd9579a7567dedb131a95

    SHA1

    76aedce6c1483506c33f1cb00cbe72a4f9387427

    SHA256

    46228923291ceab1c75887af7394832bbb68bdd840b3d10c7bda8f2f5e85b25a

    SHA512

    3187ca40dd4c3fb9aead5b5eef1682a1128c957a41df1d5d0947b1f666c04737aacbdbb5c7deb9a2fb276a77437b456695f55e8429362fd68de5660e9da82e73

  • \ProgramData\Microsoft.NET\Eoksc.pif

    Filesize

    252KB

    MD5

    7c77f7a1ebddd9579a7567dedb131a95

    SHA1

    76aedce6c1483506c33f1cb00cbe72a4f9387427

    SHA256

    46228923291ceab1c75887af7394832bbb68bdd840b3d10c7bda8f2f5e85b25a

    SHA512

    3187ca40dd4c3fb9aead5b5eef1682a1128c957a41df1d5d0947b1f666c04737aacbdbb5c7deb9a2fb276a77437b456695f55e8429362fd68de5660e9da82e73

  • \ProgramData\Microsoft.NET\Eoksc.pif

    Filesize

    252KB

    MD5

    7c77f7a1ebddd9579a7567dedb131a95

    SHA1

    76aedce6c1483506c33f1cb00cbe72a4f9387427

    SHA256

    46228923291ceab1c75887af7394832bbb68bdd840b3d10c7bda8f2f5e85b25a

    SHA512

    3187ca40dd4c3fb9aead5b5eef1682a1128c957a41df1d5d0947b1f666c04737aacbdbb5c7deb9a2fb276a77437b456695f55e8429362fd68de5660e9da82e73

  • memory/1932-55-0x0000000010000000-0x0000000010032000-memory.dmp

    Filesize

    200KB

  • memory/1932-54-0x00000000757C1000-0x00000000757C3000-memory.dmp

    Filesize

    8KB

  • memory/1968-70-0x0000000000000000-mapping.dmp

  • memory/2036-67-0x0000000000000000-mapping.dmp

  • memory/2036-75-0x0000000010000000-0x0000000010032000-memory.dmp

    Filesize

    200KB