gh0strat | 73096690ffc9dad9df868fa94030607f4361bf9cd4e6a0f7e940d8696d758f4c

Analysis

max time kernel
128s
max time network
133s
platform
windows7_x64
resource
win7-20230621-en
resource tags

arch:x64arch:x86image:win7-20230621-enlocale:en-usos:windows7-x64system
submitted
30-06-2023 16:38

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General

Target

x64exe.exe
Size

32KB
MD5

2e0699c149b6e8f5052c9ca681b31483
SHA1

d92c92fe190de3e2eacbe2c7ca0c379af8e06ec4
SHA256

73096690ffc9dad9df868fa94030607f4361bf9cd4e6a0f7e940d8696d758f4c
SHA512

a6cbe0b466479bda0d2b7fe2a19e5463dcd56a53a2bd3e072fa5e97eaee0f581f7eba289d6f6016c6abf34340f611883636b924492738a92cc21bcb4fec3fbb2
SSDEEP

768:1w/iOWTK3JWhOM/qZh7UJGcZ/VN0BlXGnbcuyD7Urs9:WQK52fqZSIA9olXGnouy8rs9

Score

10^/10

gh0strat persistence rat upx

Malware Config

Extracted

Family

gh0strat

sky.hobuff.info

Signatures

Gh0st RAT payload 9 IoCs

resource	yara_rule
behavioral1/files/0x000b0000000122ee-55.dat	family_gh0strat
behavioral1/files/0x000b0000000122ee-58.dat	family_gh0strat
behavioral1/files/0x000b0000000122ee-57.dat	family_gh0strat
behavioral1/memory/1720-60-0x0000000000400000-0x0000000000420000-memory.dmp	family_gh0strat
behavioral1/memory/1720-61-0x0000000000400000-0x0000000000420000-memory.dmp	family_gh0strat
behavioral1/files/0x000b0000000122ee-66.dat	family_gh0strat
behavioral1/files/0x000b0000000122ee-70.dat	family_gh0strat
behavioral1/files/0x000b0000000122ee-68.dat	family_gh0strat
behavioral1/files/0x000b0000000122ee-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

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\serivecs\Parameters\ServiceDll = "C:\\Windows\\system32\\7081056.dll"	x64exe.exe

Deletes itself 1 IoCs

pid	Process
1108	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
1488	serivecs.exe

Loads dropped DLL 7 IoCs

pid	Process
1720	x64exe.exe
1528	svchost.exe
1528	svchost.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/1720-60-0x0000000000400000-0x0000000000420000-memory.dmp	upx
behavioral1/memory/1720-61-0x0000000000400000-0x0000000000420000-memory.dmp	upx

Creates a Windows Service
persistence

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\7081056.dll	x64exe.exe
File created	C:\Windows\SysWOW64\serivecs.exe	svchost.exe
File opened for modification	C:\Windows\SysWOW64\serivecs.exe	svchost.exe

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

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	serivecs.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	serivecs.exe

Modifies data under HKEY_USERS 6 IoCs

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

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1764	PING.EXE

Suspicious behavior: EnumeratesProcesses 52 IoCs

pid	Process
1720	x64exe.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe
1488	serivecs.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1720	x64exe.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1720	x64exe.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1720 wrote to memory of 1108	1720	x64exe.exe	30
PID 1720 wrote to memory of 1108	1720	x64exe.exe	30
PID 1720 wrote to memory of 1108	1720	x64exe.exe	30
PID 1720 wrote to memory of 1108	1720	x64exe.exe	30
PID 1108 wrote to memory of 1764	1108	cmd.exe	32
PID 1108 wrote to memory of 1764	1108	cmd.exe	32
PID 1108 wrote to memory of 1764	1108	cmd.exe	32
PID 1108 wrote to memory of 1764	1108	cmd.exe	32
PID 1528 wrote to memory of 1488	1528	svchost.exe	33
PID 1528 wrote to memory of 1488	1528	svchost.exe	33
PID 1528 wrote to memory of 1488	1528	svchost.exe	33
PID 1528 wrote to memory of 1488	1528	svchost.exe	33

C:\Users\Admin\AppData\Local\Temp\x64exe.exe
"C:\Users\Admin\AppData\Local\Temp\x64exe.exe"
1⤵
- Sets DLL path for service in the registry
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1720
- 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\x64exe.exe"
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:1108
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 1
    3⤵
    - Runs ping.exe
    PID:1764

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "serivecs"
1⤵
PID:1712

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "serivecs"
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:1528
- C:\Windows\SysWOW64\serivecs.exe
  C:\Windows\system32\serivecs.exe "c:\windows\system32\7081056.dll",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Checks processor information in registry
  - Modifies data under HKEY_USERS
  - Suspicious behavior: EnumeratesProcesses
  PID:1488

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

Replay Monitor

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Downloads

C:\Windows\SysWOW64\serivecs.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

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

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
\??\c:\windows\SysWOW64\7081056.dll

Filesize
37KB

MD5
67471f9e74ce07e6de4be37cd6fadf51

SHA1
57cf550e19df2e8c04a71e712be4dcf58a17faef

SHA256
7faf403b9748cdc9b8f8aba98a64567fcd9c5ad490bcc31a0b6cce978003e754

SHA512
b182b3bd77f5c9a867c84d08b1fb36a4fc715b7dc6970651ca2640fb6147cf0a49fb526d51d56ad31279b2d9ae363a29f0062ba1f8c363279f9b45b2cce569b2

Download Submit
\Windows\SysWOW64\7081056.dll

Filesize
37KB

MD5
67471f9e74ce07e6de4be37cd6fadf51

SHA1
57cf550e19df2e8c04a71e712be4dcf58a17faef

SHA256
7faf403b9748cdc9b8f8aba98a64567fcd9c5ad490bcc31a0b6cce978003e754

SHA512
b182b3bd77f5c9a867c84d08b1fb36a4fc715b7dc6970651ca2640fb6147cf0a49fb526d51d56ad31279b2d9ae363a29f0062ba1f8c363279f9b45b2cce569b2

Download Submit
\Windows\SysWOW64\7081056.dll

Filesize
37KB

MD5
67471f9e74ce07e6de4be37cd6fadf51

SHA1
57cf550e19df2e8c04a71e712be4dcf58a17faef

SHA256
7faf403b9748cdc9b8f8aba98a64567fcd9c5ad490bcc31a0b6cce978003e754

SHA512
b182b3bd77f5c9a867c84d08b1fb36a4fc715b7dc6970651ca2640fb6147cf0a49fb526d51d56ad31279b2d9ae363a29f0062ba1f8c363279f9b45b2cce569b2

Download Submit
\Windows\SysWOW64\7081056.dll

Filesize
37KB

MD5
67471f9e74ce07e6de4be37cd6fadf51

SHA1
57cf550e19df2e8c04a71e712be4dcf58a17faef

SHA256
7faf403b9748cdc9b8f8aba98a64567fcd9c5ad490bcc31a0b6cce978003e754

SHA512
b182b3bd77f5c9a867c84d08b1fb36a4fc715b7dc6970651ca2640fb6147cf0a49fb526d51d56ad31279b2d9ae363a29f0062ba1f8c363279f9b45b2cce569b2

Download Submit
\Windows\SysWOW64\7081056.dll

Filesize
37KB

MD5
67471f9e74ce07e6de4be37cd6fadf51

SHA1
57cf550e19df2e8c04a71e712be4dcf58a17faef

SHA256
7faf403b9748cdc9b8f8aba98a64567fcd9c5ad490bcc31a0b6cce978003e754

SHA512
b182b3bd77f5c9a867c84d08b1fb36a4fc715b7dc6970651ca2640fb6147cf0a49fb526d51d56ad31279b2d9ae363a29f0062ba1f8c363279f9b45b2cce569b2

Download Submit
\Windows\SysWOW64\7081056.dll

Filesize
37KB

MD5
67471f9e74ce07e6de4be37cd6fadf51

SHA1
57cf550e19df2e8c04a71e712be4dcf58a17faef

SHA256
7faf403b9748cdc9b8f8aba98a64567fcd9c5ad490bcc31a0b6cce978003e754

SHA512
b182b3bd77f5c9a867c84d08b1fb36a4fc715b7dc6970651ca2640fb6147cf0a49fb526d51d56ad31279b2d9ae363a29f0062ba1f8c363279f9b45b2cce569b2

Download Submit
\Windows\SysWOW64\7081056.dll

Filesize
37KB

MD5
67471f9e74ce07e6de4be37cd6fadf51

SHA1
57cf550e19df2e8c04a71e712be4dcf58a17faef

SHA256
7faf403b9748cdc9b8f8aba98a64567fcd9c5ad490bcc31a0b6cce978003e754

SHA512
b182b3bd77f5c9a867c84d08b1fb36a4fc715b7dc6970651ca2640fb6147cf0a49fb526d51d56ad31279b2d9ae363a29f0062ba1f8c363279f9b45b2cce569b2

Download Submit
\Windows\SysWOW64\serivecs.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/1720-60-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1720-61-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download