gh0strat | 223278e7f27613207535c392734433b4413da28fe44e43c89c2379475430f67d

Analysis

max time kernel
43s
max time network
148s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
29-01-2023 16:25

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General

Target

tmp.exe
Size

112KB
MD5

376f65c925a7319f88beee5075cfa944
SHA1

c4e6099c945fb3a686f0a5f32108f3ca1334d3be
SHA256

223278e7f27613207535c392734433b4413da28fe44e43c89c2379475430f67d
SHA512

1bcde068e944f698ef3ef93804c525c118854873011b7c2435bbb0a6db5be0d1b56cf99e1d6de42460cd76056dd215e83442a6791ee8b3c3f3a246b113a90f14
SSDEEP

1536:vqEA70HzLJksPEOajozLElnqiO2HdJ/tHi:vXTLJkQ7zAV37tC

Score

10^/10

gh0strat persistence rat

Malware Config

Signatures

Gh0st RAT payload 7 IoCs

resource	yara_rule
behavioral1/files/0x000c0000000054a8-55.dat	family_gh0strat
behavioral1/files/0x000c0000000054a8-56.dat	family_gh0strat
behavioral1/files/0x000c0000000054a8-57.dat	family_gh0strat
behavioral1/files/0x000c0000000054a8-63.dat	family_gh0strat
behavioral1/files/0x000c0000000054a8-64.dat	family_gh0strat
behavioral1/files/0x000c0000000054a8-65.dat	family_gh0strat
behavioral1/files/0x000c0000000054a8-67.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

Executes dropped EXE 1 IoCs

pid	Process
1928	conhost.exe

Sets DLL path for service in the registry 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\conhost\Parameters\ServiceDll = "C:\\Program Files (x86)\\Google\\7078826.dll"	tmp.exe

Deletes itself 1 IoCs

pid	Process
2008	cmd.exe

Loads dropped DLL 7 IoCs

pid	Process
536	tmp.exe
2044	svchost.exe
2044	svchost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe

Creates a Windows Service
persistence

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\conhost.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\conhost.exe	svchost.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Google\7078826.dll	tmp.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	conhost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	conhost.exe

Modifies data under HKEY_USERS 6 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie	conhost.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum	conhost.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\ActiveMovie\devenum\Version = "7"	conhost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\ActiveMovie\devenum	conhost.exe
Key created	\REGISTRY\USER\.DEFAULT\Software	conhost.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft	conhost.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1720	PING.EXE

Suspicious behavior: EnumeratesProcesses 52 IoCs

pid	Process
536	tmp.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe
1928	conhost.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	536	tmp.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
536	tmp.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 536 wrote to memory of 2008	536	tmp.exe	29
PID 536 wrote to memory of 2008	536	tmp.exe	29
PID 536 wrote to memory of 2008	536	tmp.exe	29
PID 536 wrote to memory of 2008	536	tmp.exe	29
PID 2008 wrote to memory of 1720	2008	cmd.exe	31
PID 2008 wrote to memory of 1720	2008	cmd.exe	31
PID 2008 wrote to memory of 1720	2008	cmd.exe	31
PID 2008 wrote to memory of 1720	2008	cmd.exe	31
PID 2044 wrote to memory of 1928	2044	svchost.exe	32
PID 2044 wrote to memory of 1928	2044	svchost.exe	32
PID 2044 wrote to memory of 1928	2044	svchost.exe	32
PID 2044 wrote to memory of 1928	2044	svchost.exe	32

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Sets DLL path for service in the registry
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:536
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 -n 1 && del /f/q "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:2008
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 1
    3⤵
    - Runs ping.exe
    PID:1720

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "conhost"
1⤵
PID:1896

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "conhost"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:2044
- C:\Windows\SysWOW64\conhost.exe
  C:\Windows\system32\conhost.exe "c:\program files (x86)\google\7078826.dll",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Checks processor information in registry
  - Modifies data under HKEY_USERS
  - Suspicious behavior: EnumeratesProcesses
  PID:1928

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\SysWOW64\conhost.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
C:\Windows\SysWOW64\conhost.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
\??\c:\program files (x86)\google\7078826.dll

Filesize
37KB

MD5
6163baf9b05d3ce0d06911360f053bec

SHA1
d5b83dc1a44f314c08f16258b82b3a1d1d2cdb88

SHA256
c022cd69298ceb9109d1b1a1cb966ab2d79ba7155ee089ec582e2c1dfaa592f0

SHA512
d0757ead9db27c25e93969a833c374e640a39b84a43ab8dafdd7be6b888826fbf0a5d04fbbd62639cd80ca61538be3a4122793a319d6dc8a783ba63497c6949a

Download Submit
\Program Files (x86)\Google\7078826.dll

Filesize
37KB

MD5
6163baf9b05d3ce0d06911360f053bec

SHA1
d5b83dc1a44f314c08f16258b82b3a1d1d2cdb88

SHA256
c022cd69298ceb9109d1b1a1cb966ab2d79ba7155ee089ec582e2c1dfaa592f0

SHA512
d0757ead9db27c25e93969a833c374e640a39b84a43ab8dafdd7be6b888826fbf0a5d04fbbd62639cd80ca61538be3a4122793a319d6dc8a783ba63497c6949a

Download Submit
\Program Files (x86)\Google\7078826.dll

Filesize
37KB

MD5
6163baf9b05d3ce0d06911360f053bec

SHA1
d5b83dc1a44f314c08f16258b82b3a1d1d2cdb88

SHA256
c022cd69298ceb9109d1b1a1cb966ab2d79ba7155ee089ec582e2c1dfaa592f0

SHA512
d0757ead9db27c25e93969a833c374e640a39b84a43ab8dafdd7be6b888826fbf0a5d04fbbd62639cd80ca61538be3a4122793a319d6dc8a783ba63497c6949a

Download Submit
\Program Files (x86)\Google\7078826.dll

Filesize
37KB

MD5
6163baf9b05d3ce0d06911360f053bec

SHA1
d5b83dc1a44f314c08f16258b82b3a1d1d2cdb88

SHA256
c022cd69298ceb9109d1b1a1cb966ab2d79ba7155ee089ec582e2c1dfaa592f0

SHA512
d0757ead9db27c25e93969a833c374e640a39b84a43ab8dafdd7be6b888826fbf0a5d04fbbd62639cd80ca61538be3a4122793a319d6dc8a783ba63497c6949a

Download Submit
\Program Files (x86)\Google\7078826.dll

Filesize
37KB

MD5
6163baf9b05d3ce0d06911360f053bec

SHA1
d5b83dc1a44f314c08f16258b82b3a1d1d2cdb88

SHA256
c022cd69298ceb9109d1b1a1cb966ab2d79ba7155ee089ec582e2c1dfaa592f0

SHA512
d0757ead9db27c25e93969a833c374e640a39b84a43ab8dafdd7be6b888826fbf0a5d04fbbd62639cd80ca61538be3a4122793a319d6dc8a783ba63497c6949a

Download Submit
\Program Files (x86)\Google\7078826.dll

Filesize
37KB

MD5
6163baf9b05d3ce0d06911360f053bec

SHA1
d5b83dc1a44f314c08f16258b82b3a1d1d2cdb88

SHA256
c022cd69298ceb9109d1b1a1cb966ab2d79ba7155ee089ec582e2c1dfaa592f0

SHA512
d0757ead9db27c25e93969a833c374e640a39b84a43ab8dafdd7be6b888826fbf0a5d04fbbd62639cd80ca61538be3a4122793a319d6dc8a783ba63497c6949a

Download Submit
\Program Files (x86)\Google\7078826.dll

Filesize
37KB

MD5
6163baf9b05d3ce0d06911360f053bec

SHA1
d5b83dc1a44f314c08f16258b82b3a1d1d2cdb88

SHA256
c022cd69298ceb9109d1b1a1cb966ab2d79ba7155ee089ec582e2c1dfaa592f0

SHA512
d0757ead9db27c25e93969a833c374e640a39b84a43ab8dafdd7be6b888826fbf0a5d04fbbd62639cd80ca61538be3a4122793a319d6dc8a783ba63497c6949a

Download Submit
\Windows\SysWOW64\conhost.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/536-54-0x0000000076871000-0x0000000076873000-memory.dmp

Filesize
8KB

Download