gh0strat | 93c75fff7e530e1f6d0c978dda74c2ab7014c278d5e065bd98225ba76466a851

Analysis

max time kernel
121s
max time network
32s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
13/05/2023, 22:46

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General

Target

86.exe
Size

32KB
MD5

8456c8dede98f1db930ae403bd2741a5
SHA1

efb2571a9ed39f780546cdc4568fec905bb20c1d
SHA256

93c75fff7e530e1f6d0c978dda74c2ab7014c278d5e065bd98225ba76466a851
SHA512

59df2163d17a045d214bde6a9eff87c6df7d84d1d088da5f4c01e8864b4244fc94dacb819baf2c19d3d3e396606d4518c69e601728ebba2ef122d50da025f617
SSDEEP

768:Nw/iOWTK3JWhOM/qZh7UJGcZ/VCm865x+BVnbcuyD7U7s9:OQK52fqZSIA9H865Inouy87s9

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/0x002000000000f683-55.dat	family_gh0strat
behavioral1/memory/1244-57-0x0000000000400000-0x0000000000420000-memory.dmp	family_gh0strat
behavioral1/files/0x002000000000f683-59.dat	family_gh0strat
behavioral1/files/0x002000000000f683-58.dat	family_gh0strat
behavioral1/memory/1244-61-0x0000000000400000-0x0000000000420000-memory.dmp	family_gh0strat
behavioral1/files/0x002000000000f683-68.dat	family_gh0strat
behavioral1/files/0x002000000000f683-67.dat	family_gh0strat
behavioral1/files/0x002000000000f683-66.dat	family_gh0strat
behavioral1/files/0x002000000000f683-70.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\\7094847.dll"	86.exe

Deletes itself 1 IoCs

pid	Process
1584	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
768	serivecs.exe

Loads dropped DLL 7 IoCs

pid	Process
1244	86.exe
2028	svchost.exe
2028	svchost.exe
768	serivecs.exe
768	serivecs.exe
768	serivecs.exe
768	serivecs.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1244-57-0x0000000000400000-0x0000000000420000-memory.dmp	upx
behavioral1/memory/1244-61-0x0000000000400000-0x0000000000420000-memory.dmp	upx

Creates a Windows Service
persistence

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\7094847.dll	86.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

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
592	PING.EXE

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1244	86.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	1244	86.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1244	86.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1244 wrote to memory of 1584	1244	86.exe	29
PID 1244 wrote to memory of 1584	1244	86.exe	29
PID 1244 wrote to memory of 1584	1244	86.exe	29
PID 1244 wrote to memory of 1584	1244	86.exe	29
PID 1584 wrote to memory of 592	1584	cmd.exe	31
PID 1584 wrote to memory of 592	1584	cmd.exe	31
PID 1584 wrote to memory of 592	1584	cmd.exe	31
PID 1584 wrote to memory of 592	1584	cmd.exe	31
PID 2028 wrote to memory of 768	2028	svchost.exe	32
PID 2028 wrote to memory of 768	2028	svchost.exe	32
PID 2028 wrote to memory of 768	2028	svchost.exe	32
PID 2028 wrote to memory of 768	2028	svchost.exe	32

C:\Users\Admin\AppData\Local\Temp\86.exe
"C:\Users\Admin\AppData\Local\Temp\86.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:1244
- 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\86.exe"
  2⤵
  - Deletes itself
  - Suspicious use of WriteProcessMemory
  PID:1584
- - C:\Windows\SysWOW64\PING.EXE
    ping 127.0.0.1 -n 1
    3⤵
    - Runs ping.exe
    PID:592

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k "serivecs"
1⤵
PID:1632

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:2028
- C:\Windows\SysWOW64\serivecs.exe
  C:\Windows\system32\serivecs.exe "c:\windows\system32\7094847.dll",MainThread
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:768

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

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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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\7094847.dll

Filesize
37KB

MD5
f994f3274b69412de74c8d62c98b356f

SHA1
f5b4aad1093150263aea8f0fae7bc3d810fbd294

SHA256
44e8d6c1ecf0561a737897360210ee8f9c382139ad699320deeb23c764e13291

SHA512
8eb2222649d567d8a43c0fb8de46afaa77a99490a9fbfeef679810b8a01b622a3059c740b8dcaef4a7df7801d4a2cae7b54ded7e59a6e75dbb221c93c315cd0f

Download Submit
\Windows\SysWOW64\7094847.dll

Filesize
37KB

MD5
f994f3274b69412de74c8d62c98b356f

SHA1
f5b4aad1093150263aea8f0fae7bc3d810fbd294

SHA256
44e8d6c1ecf0561a737897360210ee8f9c382139ad699320deeb23c764e13291

SHA512
8eb2222649d567d8a43c0fb8de46afaa77a99490a9fbfeef679810b8a01b622a3059c740b8dcaef4a7df7801d4a2cae7b54ded7e59a6e75dbb221c93c315cd0f

Download Submit
\Windows\SysWOW64\7094847.dll

Filesize
37KB

MD5
f994f3274b69412de74c8d62c98b356f

SHA1
f5b4aad1093150263aea8f0fae7bc3d810fbd294

SHA256
44e8d6c1ecf0561a737897360210ee8f9c382139ad699320deeb23c764e13291

SHA512
8eb2222649d567d8a43c0fb8de46afaa77a99490a9fbfeef679810b8a01b622a3059c740b8dcaef4a7df7801d4a2cae7b54ded7e59a6e75dbb221c93c315cd0f

Download Submit
\Windows\SysWOW64\7094847.dll

Filesize
37KB

MD5
f994f3274b69412de74c8d62c98b356f

SHA1
f5b4aad1093150263aea8f0fae7bc3d810fbd294

SHA256
44e8d6c1ecf0561a737897360210ee8f9c382139ad699320deeb23c764e13291

SHA512
8eb2222649d567d8a43c0fb8de46afaa77a99490a9fbfeef679810b8a01b622a3059c740b8dcaef4a7df7801d4a2cae7b54ded7e59a6e75dbb221c93c315cd0f

Download Submit
\Windows\SysWOW64\7094847.dll

Filesize
37KB

MD5
f994f3274b69412de74c8d62c98b356f

SHA1
f5b4aad1093150263aea8f0fae7bc3d810fbd294

SHA256
44e8d6c1ecf0561a737897360210ee8f9c382139ad699320deeb23c764e13291

SHA512
8eb2222649d567d8a43c0fb8de46afaa77a99490a9fbfeef679810b8a01b622a3059c740b8dcaef4a7df7801d4a2cae7b54ded7e59a6e75dbb221c93c315cd0f

Download Submit
\Windows\SysWOW64\7094847.dll

Filesize
37KB

MD5
f994f3274b69412de74c8d62c98b356f

SHA1
f5b4aad1093150263aea8f0fae7bc3d810fbd294

SHA256
44e8d6c1ecf0561a737897360210ee8f9c382139ad699320deeb23c764e13291

SHA512
8eb2222649d567d8a43c0fb8de46afaa77a99490a9fbfeef679810b8a01b622a3059c740b8dcaef4a7df7801d4a2cae7b54ded7e59a6e75dbb221c93c315cd0f

Download Submit
\Windows\SysWOW64\7094847.dll

Filesize
37KB

MD5
f994f3274b69412de74c8d62c98b356f

SHA1
f5b4aad1093150263aea8f0fae7bc3d810fbd294

SHA256
44e8d6c1ecf0561a737897360210ee8f9c382139ad699320deeb23c764e13291

SHA512
8eb2222649d567d8a43c0fb8de46afaa77a99490a9fbfeef679810b8a01b622a3059c740b8dcaef4a7df7801d4a2cae7b54ded7e59a6e75dbb221c93c315cd0f

Download Submit
\Windows\SysWOW64\serivecs.exe

Filesize
43KB

MD5
51138beea3e2c21ec44d0932c71762a8

SHA1
8939cf35447b22dd2c6e6f443446acc1bf986d58

SHA256
5ad3c37e6f2b9db3ee8b5aeedc474645de90c66e3d95f8620c48102f1eba4124

SHA512
794f30fe452117ff2a26dc9d7086aaf82b639c2632ac2e381a81f5239caaec7c96922ba5d2d90bfd8d74f0a6cd4f79fbda63e14c6b779e5cf6834c13e4e45e7d

Download Submit
memory/1244-57-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/1244-61-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download