gh0strat | cf125daacc62a36873b806b44bb4e216523bd7e461b7f1f4f75fdad43825df42

General

Target

cf125daacc62a36873b806b44bb4e216523bd7e461b7f1f4f75fdad43825df42.exe
Size

2.7MB
MD5

2d7f39379c650b1acfe72c4b0f5b8e1e
SHA1

4ef37f8b091cfe45e77b3b0df182723fa608c64f
SHA256

cf125daacc62a36873b806b44bb4e216523bd7e461b7f1f4f75fdad43825df42
SHA512

f8cd907f3bce73c56f9a836a3fbf2aadeda928f1a8a4d4557e18df01940577ae11e3bf196d2875909f2f12d5d644b4edabf3fbf9167f718dc322a05cd2022ff9
SSDEEP

49152:/YREXSVMDi39x7kYKy2Re589Y+wejfxYD2qQfs+RiieNXsD:A2SVMD8n7kYec589YLeLxYD2qQfs+Rsi

Score

10^/10

Malware Config

Signatures

Gh0st RAT payload 1 IoCs

resource	yara_rule
behavioral1/files/0x0016000000018657-6.dat	family_gh0strat

Gh0strat
Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.
rat gh0strat
Gh0strat family
gh0strat

Server Software Component: Terminal Services DLL 1 TTPs 1 IoCs

persistence

Terminal Services DLL

T1505.005

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\svchcst\Parameters\ServiceDll = "C:\\Windows\\system32\\259442158.bat"	look2.exe

Executes dropped EXE 3 IoCs

pid	Process
2988	look2.exe
2544	HD_cf125daacc62a36873b806b44bb4e216523bd7e461b7f1f4f75fdad43825df42.exe
2744	svchcst.exe

Loads dropped DLL 7 IoCs

pid	Process
2112	cf125daacc62a36873b806b44bb4e216523bd7e461b7f1f4f75fdad43825df42.exe
2988	look2.exe
1944	svchost.exe
2112	cf125daacc62a36873b806b44bb4e216523bd7e461b7f1f4f75fdad43825df42.exe
2112	cf125daacc62a36873b806b44bb4e216523bd7e461b7f1f4f75fdad43825df42.exe
1944	svchost.exe
2744	svchcst.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\svchcst.exe	svchost.exe
File created	C:\Windows\SysWOW64\259442158.bat	look2.exe
File opened for modification	C:\Windows\SysWOW64\ini.ini	look2.exe
File created	C:\Windows\SysWOW64\svchcst.exe	svchost.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe	cf125daacc62a36873b806b44bb4e216523bd7e461b7f1f4f75fdad43825df42.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

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

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchcst.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cf125daacc62a36873b806b44bb4e216523bd7e461b7f1f4f75fdad43825df42.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	look2.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2112	cf125daacc62a36873b806b44bb4e216523bd7e461b7f1f4f75fdad43825df42.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2112	cf125daacc62a36873b806b44bb4e216523bd7e461b7f1f4f75fdad43825df42.exe
2112	cf125daacc62a36873b806b44bb4e216523bd7e461b7f1f4f75fdad43825df42.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 2988	2112	cf125daacc62a36873b806b44bb4e216523bd7e461b7f1f4f75fdad43825df42.exe	30
PID 2112 wrote to memory of 2988	2112	cf125daacc62a36873b806b44bb4e216523bd7e461b7f1f4f75fdad43825df42.exe	30
PID 2112 wrote to memory of 2988	2112	cf125daacc62a36873b806b44bb4e216523bd7e461b7f1f4f75fdad43825df42.exe	30
PID 2112 wrote to memory of 2988	2112	cf125daacc62a36873b806b44bb4e216523bd7e461b7f1f4f75fdad43825df42.exe	30
PID 2112 wrote to memory of 2544	2112	cf125daacc62a36873b806b44bb4e216523bd7e461b7f1f4f75fdad43825df42.exe	33
PID 2112 wrote to memory of 2544	2112	cf125daacc62a36873b806b44bb4e216523bd7e461b7f1f4f75fdad43825df42.exe	33
PID 2112 wrote to memory of 2544	2112	cf125daacc62a36873b806b44bb4e216523bd7e461b7f1f4f75fdad43825df42.exe	33
PID 2112 wrote to memory of 2544	2112	cf125daacc62a36873b806b44bb4e216523bd7e461b7f1f4f75fdad43825df42.exe	33
PID 1944 wrote to memory of 2744	1944	svchost.exe	36
PID 1944 wrote to memory of 2744	1944	svchost.exe	36
PID 1944 wrote to memory of 2744	1944	svchost.exe	36
PID 1944 wrote to memory of 2744	1944	svchost.exe	36

C:\Users\Admin\AppData\Local\Temp\cf125daacc62a36873b806b44bb4e216523bd7e461b7f1f4f75fdad43825df42.exe
"C:\Users\Admin\AppData\Local\Temp\cf125daacc62a36873b806b44bb4e216523bd7e461b7f1f4f75fdad43825df42.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2112
- C:\Users\Admin\AppData\Local\Temp\look2.exe
  C:\Users\Admin\AppData\Local\Temp\\look2.exe
  2⤵
  - Server Software Component: Terminal Services DLL
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  PID:2988
- C:\Users\Admin\AppData\Local\Temp\HD_cf125daacc62a36873b806b44bb4e216523bd7e461b7f1f4f75fdad43825df42.exe
  C:\Users\Admin\AppData\Local\Temp\HD_cf125daacc62a36873b806b44bb4e216523bd7e461b7f1f4f75fdad43825df42.exe
  2⤵
  - Executes dropped EXE
  PID:2544

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "svchcst"
1⤵
PID:2580

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "svchcst"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1944
- C:\Windows\SysWOW64\svchcst.exe
  C:\Windows\system32\svchcst.exe "c:\windows\system32\259442158.bat",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  PID:2744

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Server Software Component

1

T1505

Terminal Services DLL

1

T1505.005

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\HD_X.dat

Filesize
1.3MB

MD5
a3b312045874c1b649aa97591b6598b6

SHA1
5f7d6e1704562bc40ea31b9acfa26ad36ceaf00c

SHA256
8f00e0d6fbe748bc26e5c2b9f19b3c754b96d0e539aaaa48a0d7a1ee6053bf15

SHA512
69bb57d9ab8530580ae96d1955a937abc8e0f1bba175c1525d8eb9a1cbb904299451a9b34500ad38c63ca0e6f40f71cf77023a28d0ead060acc00867ed39d671

Download Submit
\Users\Admin\AppData\Local\Temp\HD_cf125daacc62a36873b806b44bb4e216523bd7e461b7f1f4f75fdad43825df42.exe

Filesize
1.4MB

MD5
3b18120dd3ec631f480b83d695b44824

SHA1
6aff3d0935c31a99e2cd3e6ea73e54cc095f7de7

SHA256
58a3efb76d4fa71ff00d28417965966463a4972f6014073ff7debff3a6d3848b

SHA512
fe2a92eee7dd7fb05e1805752190e79040f27b2b8350e9b6a9cb4865da4b6ee309d52e2623a33ace0df7b4eb7f09f209a62b0d1e61ea49a728930da687905f70

Download Submit
\Users\Admin\AppData\Local\Temp\look2.exe

Filesize
337KB

MD5
2f3b6f16e33e28ad75f3fdaef2567807

SHA1
85e907340faf1edfc9210db85a04abd43d21b741

SHA256
86492ebf2d6f471a5ee92977318d099b3ea86175b5b7ae522237ae01d07a4857

SHA512
db17e99e2df918cfc9ccbe934adfe73f0777ce1ce9f28b57a4b24ecd821efe2e0b976a634853247b77b16627d2bb3af4ba20306059d1d25ef38ffada7da3e3a4

Download Submit
\Windows\SysWOW64\259442158.bat

Filesize
51KB

MD5
9d2c5aee9f30dca225a49da5376072f4

SHA1
0aae5061d1ca65a7fabcfb38c9fbc4d79aa10a24

SHA256
87c29067fba45f4da96737757e6c741c720a798365e82720bafaeb53b31a44b7

SHA512
961b05b28b3f4f0a0d8aa079111936a87a92d0d1dd0d75e4405fc3a467410eb96a0f7865518a5c8558a28d8bf832fb6d97503b0008999accad694e64d2a0cc76

Download Submit
\Windows\SysWOW64\svchcst.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit

Analysis

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