gh0strat | bb3343011933ca1341f222484068fd39fa2acd639645c3df172a9dc32f89bfd7

Analysis

max time kernel
33s
max time network
34s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
23-11-2022 09:46

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General

Target

bb3343011933ca1341f222484068fd39fa2acd639645c3df172a9dc32f89bfd7.exe
Size

80KB
MD5

1aaff2441611ce9500a464e83de078b8
SHA1

072fac4e85066924fb49805c8640d43ade483e95
SHA256

bb3343011933ca1341f222484068fd39fa2acd639645c3df172a9dc32f89bfd7
SHA512

27c06c823fd5d74e4be0b41fead22d6c44104fb5a92aa63f716a96f87ea46759ff1848dd557d8c19248b37f42f0ff273a2fd7296238a431ddc3e9b648fc009cc
SSDEEP

1536:sFz0LnC0atiq+9Cc73McaTBFb0bJ+oa/xrpnHTlyojsjxNe22JjIHM:sFz90hq+Yc7Hf4oa5r5sojsj+oM

Score

10^/10

gh0strat persistence rat

Malware Config

Signatures

Gh0st RAT payload 2 IoCs

Processes:

resource	yara_rule
behavioral1/memory/872-57-0x0000000010000000-0x0000000010046000-memory.dmp	family_gh0strat
behavioral1/memory/872-61-0x0000000010000000-0x0000000010046000-memory.dmp	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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

bb3343011933ca1341f222484068fd39fa2acd639645c3df172a9dc32f89bfd7.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	bb3343011933ca1341f222484068fd39fa2acd639645c3df172a9dc32f89bfd7.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\2ECAFBBA = "C:\\Windows\\2ECAFBBA\\svchsot.exe"	bb3343011933ca1341f222484068fd39fa2acd639645c3df172a9dc32f89bfd7.exe

Drops file in Windows directory 2 IoCs

Processes:

bb3343011933ca1341f222484068fd39fa2acd639645c3df172a9dc32f89bfd7.exe

description	ioc	process
File opened for modification	C:\Windows\2ECAFBBA\svchsot.exe	bb3343011933ca1341f222484068fd39fa2acd639645c3df172a9dc32f89bfd7.exe
File created	C:\Windows\2ECAFBBA\svchsot.exe	bb3343011933ca1341f222484068fd39fa2acd639645c3df172a9dc32f89bfd7.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

bb3343011933ca1341f222484068fd39fa2acd639645c3df172a9dc32f89bfd7.exe

pid	process
872	bb3343011933ca1341f222484068fd39fa2acd639645c3df172a9dc32f89bfd7.exe
872	bb3343011933ca1341f222484068fd39fa2acd639645c3df172a9dc32f89bfd7.exe
872	bb3343011933ca1341f222484068fd39fa2acd639645c3df172a9dc32f89bfd7.exe
872	bb3343011933ca1341f222484068fd39fa2acd639645c3df172a9dc32f89bfd7.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

bb3343011933ca1341f222484068fd39fa2acd639645c3df172a9dc32f89bfd7.exe

description	pid	process
Token: SeDebugPrivilege	872	bb3343011933ca1341f222484068fd39fa2acd639645c3df172a9dc32f89bfd7.exe
Token: SeDebugPrivilege	872	bb3343011933ca1341f222484068fd39fa2acd639645c3df172a9dc32f89bfd7.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

bb3343011933ca1341f222484068fd39fa2acd639645c3df172a9dc32f89bfd7.exenet.exe

description	pid	process	target process
PID 872 wrote to memory of 836	872	bb3343011933ca1341f222484068fd39fa2acd639645c3df172a9dc32f89bfd7.exe	net.exe
PID 872 wrote to memory of 836	872	bb3343011933ca1341f222484068fd39fa2acd639645c3df172a9dc32f89bfd7.exe	net.exe
PID 872 wrote to memory of 836	872	bb3343011933ca1341f222484068fd39fa2acd639645c3df172a9dc32f89bfd7.exe	net.exe
PID 872 wrote to memory of 836	872	bb3343011933ca1341f222484068fd39fa2acd639645c3df172a9dc32f89bfd7.exe	net.exe
PID 836 wrote to memory of 1076	836	net.exe	net1.exe
PID 836 wrote to memory of 1076	836	net.exe	net1.exe
PID 836 wrote to memory of 1076	836	net.exe	net1.exe
PID 836 wrote to memory of 1076	836	net.exe	net1.exe

C:\Users\Admin\AppData\Local\Temp\bb3343011933ca1341f222484068fd39fa2acd639645c3df172a9dc32f89bfd7.exe
"C:\Users\Admin\AppData\Local\Temp\bb3343011933ca1341f222484068fd39fa2acd639645c3df172a9dc32f89bfd7.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:872

C:\Windows\SysWOW64\net.exe
net start "Task Scheduler"
2⤵
- Suspicious use of WriteProcessMemory
PID:836

C:\Windows\SysWOW64\net1.exe
C:\Windows\system32\net1 start "Task Scheduler"
3⤵
PID:1076

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/836-59-0x0000000000000000-mapping.dmp

Download
memory/872-54-0x0000000076191000-0x0000000076193000-memory.dmp

Filesize
8KB

Download
memory/872-55-0x0000000010000000-0x0000000010046000-memory.dmp

Filesize
280KB

Download
memory/872-57-0x0000000010000000-0x0000000010046000-memory.dmp

Filesize
280KB

Download
memory/872-61-0x0000000010000000-0x0000000010046000-memory.dmp

Filesize
280KB

Download
memory/1076-60-0x0000000000000000-mapping.dmp

Download