Analysis

  • max time kernel
    135s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/03/2025, 03:40

General

  • Target

    6679538ea48619a8739f2d9ee70c1c23843437245aab4ed387f8826f1ff2a9aa.dll

  • Size

    137KB

  • MD5

    21686af496a9759f08456c0161b05274

  • SHA1

    d1db5d34a657b82261185935a14ebc2c373138e6

  • SHA256

    6679538ea48619a8739f2d9ee70c1c23843437245aab4ed387f8826f1ff2a9aa

  • SHA512

    f03f04eb4a8cf7d482d0313f50a5d58c0b2d429379a6de4684c05bd6e6f9b6659d359fd6acf8b5caf85ccab3671eeec4171ae6acab149a5665c1a52a06fb6bbe

  • SSDEEP

    3072:ER02WMK8RJGInTlhnaBanONVk40rpg4yeF/TyUGSK9FrafcUksPxx6iTUuO:h25GgFny61mra8

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.

  • Gh0strat family
  • Boot or Logon Autostart Execution: Port Monitors 1 TTPs 16 IoCs

    Adversaries may use port monitors to run an adversary supplied DLL during system boot for persistence or privilege escalation.

  • Sets service image path in registry 2 TTPs 2 IoCs
  • ACProtect 1.3x - 1.4x DLL software 18 IoCs

    Detects file using ACProtect software.

  • Drops file in System32 directory 6 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 4 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks SCSI registry key(s) 3 TTPs 12 IoCs

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

  • Modifies data under HKEY_USERS 22 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\6679538ea48619a8739f2d9ee70c1c23843437245aab4ed387f8826f1ff2a9aa.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1892
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\6679538ea48619a8739f2d9ee70c1c23843437245aab4ed387f8826f1ff2a9aa.dll,#1
      2⤵
      • Boot or Logon Autostart Execution: Port Monitors
      • Sets service image path in registry
      • Drops file in System32 directory
      • Suspicious use of SetThreadContext
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1340
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1340 -s 620
        3⤵
        • Program crash
        PID:1772
      • C:\Windows\SysWOW64\svchost.exe
        C:\Windows\system32\svchost.exe -k rundll32
        3⤵
        • Boot or Logon Autostart Execution: Port Monitors
        • Sets service image path in registry
        • Drops file in System32 directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:4932
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1340 -ip 1340
    1⤵
      PID:2508
    • C:\Windows\system32\Spoolsv.exe
      Spoolsv.exe
      1⤵
      • Boot or Logon Autostart Execution: Port Monitors
      • Checks SCSI registry key(s)
      • Modifies data under HKEY_USERS
      PID:400

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windows\AppPatch\ComBack.Dll

      Filesize

      137KB

      MD5

      c376a5a41ed7af4fd0bcc7e86179db85

      SHA1

      7847b87b41830a128692a8f99333fe2ba7e72d16

      SHA256

      b243cc4bcb50f86f260e57ad9e53d28137e7715b7f2c0bb967fece449970b8e3

      SHA512

      473a52c545a556ff3fb6c771245cdb5debe55279ff9a0de8e383e1e65fc7e212c3d1f5828dac5e91a436456d85e421b80fde851c354bec6c21b6e41bc1761f59

    • C:\Windows\SysWOW64\com\comb.dll

      Filesize

      94B

      MD5

      2d3d90624d3d194eb49dc956f75b011e

      SHA1

      ff6fc2f5ca719f7c3f22b2c03adc007afc7c97f0

      SHA256

      f23b162f90f10ed1b01d7f5b9eaa0f0fa33ce9acd73323ae25a9b4b8eca22c0b

      SHA512

      22a5fcd276f8993b525be7c18178c8cbc6f1020da520a839124ba067f1e468f34131af380f55e69272750117519ec77a2a8c8faa5cd2bfdcb2bf944c2d7bc640

    • C:\Windows\SysWOW64\com\comb.dll

      Filesize

      160B

      MD5

      471ee5efc16aba8c4ead57260e1662f5

      SHA1

      3e7407e5c06079a8367e8e63bf336a8d40908004

      SHA256

      a55d23ae9ac482fd077e2c0257263fec010d6967dde2b93f833ef3eee4216c61

      SHA512

      a9446c894fa25816524cd18afe985990f8c67daf96fbf24e7760b4748ea64aba6343a17a3a101995ba7de4b92d5a3f84cc8c164b1c0e172781b0b9bdb2380d3d

    • C:\Windows\SysWOW64\com\comb.dll

      Filesize

      203B

      MD5

      bd0a4edcaa53e1962a5ec09456d5eea7

      SHA1

      fa8f8ac1a4fd3714ab8c472927c5341cabf6ffcd

      SHA256

      19b6682b46dc97a97238f61791acbb06444ce183d6c0e9f2fc7b77127ccf526c

      SHA512

      da0583a9b4028dca89b4eaf3bf020b61a8d1c19ff3986f55d450df766d0e072cb81e87a7da704d1efb3102ec9c31fd0c7d07ac3a8e5f7c5c807d918d72694c35

    • memory/1340-7-0x0000000002CF0000-0x0000000002D0D000-memory.dmp

      Filesize

      116KB

    • memory/1340-10-0x0000000002CF0000-0x0000000002D0D000-memory.dmp

      Filesize

      116KB

    • memory/1340-5-0x0000000010000000-0x000000001001C000-memory.dmp

      Filesize

      112KB

    • memory/1340-35-0x0000000043E50000-0x0000000043E77000-memory.dmp

      Filesize

      156KB

    • memory/1340-30-0x0000000002CF0000-0x0000000002D0D000-memory.dmp

      Filesize

      116KB

    • memory/1340-4-0x0000000010000000-0x000000001001C000-memory.dmp

      Filesize

      112KB

    • memory/1340-33-0x0000000010000000-0x000000001001C000-memory.dmp

      Filesize

      112KB

    • memory/1340-6-0x0000000010000000-0x000000001001C000-memory.dmp

      Filesize

      112KB

    • memory/1340-28-0x0000000002CF0000-0x0000000002D0D000-memory.dmp

      Filesize

      116KB

    • memory/1340-29-0x0000000002CF0000-0x0000000002D0D000-memory.dmp

      Filesize

      116KB

    • memory/1340-31-0x0000000002CF0000-0x0000000002D0D000-memory.dmp

      Filesize

      116KB

    • memory/4932-12-0x0000000000690000-0x00000000006B3000-memory.dmp

      Filesize

      140KB

    • memory/4932-24-0x0000000002B60000-0x0000000002B7D000-memory.dmp

      Filesize

      116KB

    • memory/4932-25-0x0000000002B60000-0x0000000002B7D000-memory.dmp

      Filesize

      116KB

    • memory/4932-23-0x0000000002B60000-0x0000000002B7D000-memory.dmp

      Filesize

      116KB

    • memory/4932-22-0x0000000002B60000-0x0000000002B7D000-memory.dmp

      Filesize

      116KB

    • memory/4932-19-0x0000000002B60000-0x0000000002B7D000-memory.dmp

      Filesize

      116KB

    • memory/4932-20-0x0000000002B60000-0x0000000002B7D000-memory.dmp

      Filesize

      116KB

    • memory/4932-13-0x0000000000760000-0x0000000000787000-memory.dmp

      Filesize

      156KB

    • memory/4932-36-0x0000000000760000-0x0000000000787000-memory.dmp

      Filesize

      156KB

    • memory/4932-37-0x0000000010000000-0x000000001001C000-memory.dmp

      Filesize

      112KB

    • memory/4932-38-0x0000000002B60000-0x0000000002B7D000-memory.dmp

      Filesize

      116KB

    • memory/4932-11-0x0000000000760000-0x0000000000787000-memory.dmp

      Filesize

      156KB