Analysis

  • max time kernel
    185s
  • max time network
    191s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    26/11/2022, 14:26

General

  • Target

    fc15639624d4de9bb831c1e38bf403a12c9ffa00f063452360be32e6e96550fe.exe

  • Size

    825KB

  • MD5

    35c17c148e30f391d8e88918da3bd258

  • SHA1

    962f89351e7e75d1129a797adfcd848a5342e881

  • SHA256

    fc15639624d4de9bb831c1e38bf403a12c9ffa00f063452360be32e6e96550fe

  • SHA512

    e9708119d5f72838fe6229c29fb519a0c1c93bb7df8405db712a0b84719a5891cf48af81cf83f4ef3de17fcbe4f928c1b21fce68ae92b00d366f19203e462e00

  • SSDEEP

    24576:ckK+waI8JRQMEJ2rufRtse9rkv8klBiIrgFvqIL:Z4aSlxElBiHA8

Malware Config

Signatures

  • Ammyy Admin

    Remote admin tool with various capabilities.

  • AmmyyAdmin payload 5 IoCs
  • FlawedAmmyy RAT

    Remote-access trojan based on leaked code for the Ammyy remote admin software.

  • ACProtect 1.3x - 1.4x DLL software 3 IoCs

    Detects file using ACProtect software.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 3 IoCs
  • Drops file in System32 directory 11 IoCs
  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fc15639624d4de9bb831c1e38bf403a12c9ffa00f063452360be32e6e96550fe.exe
    "C:\Users\Admin\AppData\Local\Temp\fc15639624d4de9bb831c1e38bf403a12c9ffa00f063452360be32e6e96550fe.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetWindowsHookEx
    PID:1776
  • C:\Users\Admin\AppData\Local\Temp\fc15639624d4de9bb831c1e38bf403a12c9ffa00f063452360be32e6e96550fe.exe
    "C:\Users\Admin\AppData\Local\Temp\fc15639624d4de9bb831c1e38bf403a12c9ffa00f063452360be32e6e96550fe.exe" -service -lunch
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1504
    • C:\Users\Admin\AppData\Local\Temp\fc15639624d4de9bb831c1e38bf403a12c9ffa00f063452360be32e6e96550fe.exe
      "C:\Users\Admin\AppData\Local\Temp\fc15639624d4de9bb831c1e38bf403a12c9ffa00f063452360be32e6e96550fe.exe"
      2⤵
      • Checks computer location settings
      • Loads dropped DLL
      • Drops file in System32 directory
      • Modifies data under HKEY_USERS
      • Modifies system certificate store
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of SetWindowsHookEx
      PID:1900

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\ProgramData\AMMYY\settings.bin

    Filesize

    76B

    MD5

    090bba5cbe9cd62189310f633f14d686

    SHA1

    0ce1d78aace04650b0c592665686a89412c1771c

    SHA256

    7bc48188bbd0ad1b7ac10257e6a8fc5327f2ccfd56402a4353f6d8ef26eb0ff8

    SHA512

    846781bdb4d8902963f1859077c8db4c763fdd4ca28f0be83b95c20d324b5db030f312fc3d4f959dc05ca4f41ef872a49d123195494b16440e16ebcc5edb31a7

  • \Users\Admin\AppData\Local\Temp\wpk97DD.tmp

    Filesize

    172KB

    MD5

    685f1cbd4af30a1d0c25f252d399a666

    SHA1

    6a1b978f5e6150b88c8634146f1406ed97d2f134

    SHA256

    0e478c95a7a07570a69e6061e7c1da9001bccad9cc454f2ed4da58824a13e0f4

    SHA512

    6555ad6b4f4f26105ca8aad64501d74519a3e091f559b4b563d6ffb20a2ddfcde65e4fe94971a9bc65e86db577f2548ca00f9920d341c8ea808b04c0947d61d9

  • \Windows\Temp\kpk9B66.tmp

    Filesize

    172KB

    MD5

    685f1cbd4af30a1d0c25f252d399a666

    SHA1

    6a1b978f5e6150b88c8634146f1406ed97d2f134

    SHA256

    0e478c95a7a07570a69e6061e7c1da9001bccad9cc454f2ed4da58824a13e0f4

    SHA512

    6555ad6b4f4f26105ca8aad64501d74519a3e091f559b4b563d6ffb20a2ddfcde65e4fe94971a9bc65e86db577f2548ca00f9920d341c8ea808b04c0947d61d9

  • \Windows\Temp\spk9ABA.tmp

    Filesize

    172KB

    MD5

    685f1cbd4af30a1d0c25f252d399a666

    SHA1

    6a1b978f5e6150b88c8634146f1406ed97d2f134

    SHA256

    0e478c95a7a07570a69e6061e7c1da9001bccad9cc454f2ed4da58824a13e0f4

    SHA512

    6555ad6b4f4f26105ca8aad64501d74519a3e091f559b4b563d6ffb20a2ddfcde65e4fe94971a9bc65e86db577f2548ca00f9920d341c8ea808b04c0947d61d9

  • memory/1504-62-0x0000000000520000-0x0000000000593000-memory.dmp

    Filesize

    460KB

  • memory/1504-61-0x0000000000400000-0x00000000004A3000-memory.dmp

    Filesize

    652KB

  • memory/1776-54-0x0000000074C91000-0x0000000074C93000-memory.dmp

    Filesize

    8KB

  • memory/1776-55-0x0000000000400000-0x00000000004A3000-memory.dmp

    Filesize

    652KB

  • memory/1776-65-0x0000000000400000-0x00000000004A3000-memory.dmp

    Filesize

    652KB

  • memory/1776-66-0x00000000002F0000-0x0000000000363000-memory.dmp

    Filesize

    460KB

  • memory/1900-67-0x0000000000260000-0x00000000002D3000-memory.dmp

    Filesize

    460KB

  • memory/1900-68-0x0000000000400000-0x00000000004A3000-memory.dmp

    Filesize

    652KB

  • memory/1900-69-0x0000000000400000-0x00000000004A3000-memory.dmp

    Filesize

    652KB

  • memory/1900-70-0x0000000000260000-0x00000000002D3000-memory.dmp

    Filesize

    460KB