gh0strat | c858e10e29b769ca86445ba1bebdf708e88245da4e96c4afc967818e8293e099

Resubmissions

02-01-2025 21:33

250102-1ejbvswpcv 10

08-12-2024 01:12

241208-bkq68azkep 10

Analysis

max time kernel
61s
max time network
67s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-01-2025 21:33

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

bjyk.exe
Size

378KB
MD5

a770ebf2e59e29c7460a01241a0a493f
SHA1

97e59e483e1fa524a305828157a50203e918ada9
SHA256

ca89debe5dff34c2e2f56875d7dcde5e47565329d3aeb2f2f4a6a3e2248fe664
SHA512

4cf99a862fc6e2299e33113bb757dd31a0543c5b5716146de2051fbabe86a122e895a8ced9d4f2290ae82dd9f6093dc883abcb2a6747caa90e8fd46e061f6140
SSDEEP

6144:WsItKnWUQpBTyPRqyhYPbncTBlhHrbndnkv0oX90wRudOl1YTSgux1p2iPtGZ5da:btWUzJq8YPbncT3+bRHfYTSgS21NPE+S

Score

10^/10

gh0strat discovery rat

Malware Config

Signatures

Gh0st RAT payload 10 IoCs

resource	yara_rule
behavioral10/memory/5024-0-0x0000000000400000-0x0000000000432800-memory.dmp	family_gh0strat
behavioral10/files/0x0007000000023cbd-12.dat	family_gh0strat
behavioral10/memory/1032-14-0x0000000000400000-0x0000000000432800-memory.dmp	family_gh0strat
behavioral10/memory/5024-16-0x0000000000400000-0x0000000000432800-memory.dmp	family_gh0strat
behavioral10/memory/1032-26-0x0000000000400000-0x0000000000432800-memory.dmp	family_gh0strat
behavioral10/files/0x000200000001e733-30.dat	family_gh0strat
behavioral10/memory/1032-32-0x0000000000400000-0x0000000000432800-memory.dmp	family_gh0strat
behavioral10/memory/4876-35-0x0000000020000000-0x0000000020027000-memory.dmp	family_gh0strat
behavioral10/memory/4816-40-0x0000000020000000-0x0000000020027000-memory.dmp	family_gh0strat
behavioral10/memory/1948-45-0x0000000020000000-0x0000000020027000-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
Gh0strat family
gh0strat

ACProtect 1.3x - 1.4x DLL software 1 IoCs

Detects file using ACProtect software.

resource	yara_rule
behavioral10/files/0x000a000000023bb9-2.dat	acprotect

Deletes itself 1 IoCs

pid	Process
1032	mtpevehdso

Executes dropped EXE 1 IoCs

pid	Process
1032	mtpevehdso

Loads dropped DLL 7 IoCs

pid	Process
5024	bjyk.exe
5024	bjyk.exe
1032	mtpevehdso
1032	mtpevehdso
4876	svchost.exe
4816	svchost.exe
1948	svchost.exe

Drops file in System32 directory 6 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\xewqvdqkyt	svchost.exe
File opened for modification	C:\Windows\SysWOW64\svchost.exe.txt	svchost.exe
File created	C:\Windows\SysWOW64\xnuefwloye	svchost.exe
File opened for modification	C:\Windows\SysWOW64\svchost.exe.txt	svchost.exe
File created	C:\Windows\SysWOW64\xvixnaommy	svchost.exe
File opened for modification	C:\Windows\SysWOW64\svchost.exe.txt	svchost.exe

Program crash 3 IoCs

pid	pid_target	Process	procid_target
1960	4876	WerFault.exe	85
4928	4816	WerFault.exe	93
2972	1948	WerFault.exe	97

System Location Discovery: System Language Discovery 1 TTPs 5 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	bjyk.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mtpevehdso
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1032	mtpevehdso
1032	mtpevehdso

Suspicious use of AdjustPrivilegeToken 46 IoCs

description	pid	Process
Token: SeRestorePrivilege	1032	mtpevehdso
Token: SeBackupPrivilege	1032	mtpevehdso
Token: SeBackupPrivilege	1032	mtpevehdso
Token: SeRestorePrivilege	1032	mtpevehdso
Token: SeBackupPrivilege	4876	svchost.exe
Token: SeRestorePrivilege	4876	svchost.exe
Token: SeBackupPrivilege	4876	svchost.exe
Token: SeBackupPrivilege	4876	svchost.exe
Token: SeSecurityPrivilege	4876	svchost.exe
Token: SeSecurityPrivilege	4876	svchost.exe
Token: SeBackupPrivilege	4876	svchost.exe
Token: SeBackupPrivilege	4876	svchost.exe
Token: SeSecurityPrivilege	4876	svchost.exe
Token: SeBackupPrivilege	4876	svchost.exe
Token: SeBackupPrivilege	4876	svchost.exe
Token: SeSecurityPrivilege	4876	svchost.exe
Token: SeBackupPrivilege	4876	svchost.exe
Token: SeRestorePrivilege	4876	svchost.exe
Token: SeBackupPrivilege	4816	svchost.exe
Token: SeRestorePrivilege	4816	svchost.exe
Token: SeBackupPrivilege	4816	svchost.exe
Token: SeBackupPrivilege	4816	svchost.exe
Token: SeSecurityPrivilege	4816	svchost.exe
Token: SeSecurityPrivilege	4816	svchost.exe
Token: SeBackupPrivilege	4816	svchost.exe
Token: SeBackupPrivilege	4816	svchost.exe
Token: SeSecurityPrivilege	4816	svchost.exe
Token: SeBackupPrivilege	4816	svchost.exe
Token: SeBackupPrivilege	4816	svchost.exe
Token: SeSecurityPrivilege	4816	svchost.exe
Token: SeBackupPrivilege	4816	svchost.exe
Token: SeRestorePrivilege	4816	svchost.exe
Token: SeBackupPrivilege	1948	svchost.exe
Token: SeRestorePrivilege	1948	svchost.exe
Token: SeBackupPrivilege	1948	svchost.exe
Token: SeBackupPrivilege	1948	svchost.exe
Token: SeSecurityPrivilege	1948	svchost.exe
Token: SeSecurityPrivilege	1948	svchost.exe
Token: SeBackupPrivilege	1948	svchost.exe
Token: SeBackupPrivilege	1948	svchost.exe
Token: SeSecurityPrivilege	1948	svchost.exe
Token: SeBackupPrivilege	1948	svchost.exe
Token: SeBackupPrivilege	1948	svchost.exe
Token: SeSecurityPrivilege	1948	svchost.exe
Token: SeBackupPrivilege	1948	svchost.exe
Token: SeRestorePrivilege	1948	svchost.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
5024	bjyk.exe
1032	mtpevehdso

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5024 wrote to memory of 1032	5024	bjyk.exe	83
PID 5024 wrote to memory of 1032	5024	bjyk.exe	83
PID 5024 wrote to memory of 1032	5024	bjyk.exe	83

C:\Users\Admin\AppData\Local\Temp\bjyk.exe
"C:\Users\Admin\AppData\Local\Temp\bjyk.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5024
- \??\c:\users\admin\appdata\local\mtpevehdso
  "C:\Users\Admin\AppData\Local\Temp\bjyk.exe" a -sc:\users\admin\appdata\local\temp\bjyk.exe
  2⤵
  - Deletes itself
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1032

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs -s fastuserswitchingcompatibility
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4876
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4876 -s 860
  2⤵
  - Program crash
  PID:1960

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4876 -ip 4876
1⤵
PID:2300

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs -s fastuserswitchingcompatibility
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:4816
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4816 -s 892
  2⤵
  - Program crash
  PID:4928

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4816 -ip 4816
1⤵
PID:3740

C:\Windows\SysWOW64\svchost.exe
C:\Windows\SysWOW64\svchost.exe -k netsvcs -s fastuserswitchingcompatibility
1⤵
- Loads dropped DLL
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1948
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1948 -s 888
  2⤵
  - Program crash
  PID:2972

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 1948 -ip 1948
1⤵
PID:4272

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\DRM\%SESSIONNAME%\qlwym.cc3

Filesize
23.1MB

MD5
c40982de53255fff1a405b7aa944a44c

SHA1
1c662adcfe9f863edbd2c2f3f84a2fb762a41d4e

SHA256
048793edb220f0b2949b6d32da0b46d861c57d97ed42ec164acd1685054b0a0e

SHA512
b5eade5e91fafe8e9d3c3f59ca36403c1c17c4f2fbbc163f3ae0680f6a67bad6af1f4a3521cbbeca579b2b3786117ae286a63158a2dc3fb17a96a0debe4d701b

Download Submit
C:\Users\Admin\AppData\Local\Temp\lriAD76.tmp

Filesize
172KB

MD5
4f407b29d53e9eb54e22d096fce82aa7

SHA1
a4ee25b066cac19ff679dd491f5791652bb71185

SHA256
cf0ecf30fc95800a34105acb9bcb484bb594a35b3ef26ace8f122af4f9f888dc

SHA512
325f7b599455195101e4c0dafd3654906d20ed2c1ce2a5f38784635e16ab545df6ee44a83bed6128239be2dee5be110552c7b246b7f52482ab31552e14b54183

Download Submit
C:\Users\Admin\AppData\Local\mtpevehdso

Filesize
22.9MB

MD5
33e916de5d8a1349723bd66af5ea50f4

SHA1
16aac3f95911485c855227e220e01862c0dbe668

SHA256
db6d75e935bdc9c5063ce69656d5f22332c42d670580cfa0ee857a596b597529

SHA512
827983e8a82a2d5f610acb79dad6e6299d276289db2788697e4b7c16b2833041f696cec891b6e14be52650278ebebfd7ea700bd1f6057b87b2264359fbc6b642

Download Submit
C:\Windows\SysWOW64\svchost.exe.txt

Filesize
202B

MD5
558534ab06dca6eced5b10541c2ea856

SHA1
bc6a9737d624e3fddac9d6587d1d7c73d8c1538c

SHA256
c4b6dbfa247a4ba959a344c8213578c47d7472ba50afca69f0013be70f4039e0

SHA512
dc8d474e10d40bf92ff87ec6a38c3a8d43f70033263f50a056e29b5858adefff8e03ea751660bd9d7834de370434840bd892442db29c7b45a0d5b5e611930251

Download Submit
C:\Windows\SysWOW64\svchost.exe.txt

Filesize
303B

MD5
86dea2e859c01e1ba8d4f7d6f4343630

SHA1
67b4be8e1196d93873b0a8480840686f485e0af2

SHA256
1d5c4a1eda859514e013cdbeba207ddba39b64dc6a1ffcbe9dc288b2bf44a330

SHA512
c6c0314d1ded58a78f0fb807cac0982389cf85ba33b0f67eedc495548756c459d52f1a8e5f8e4dc8420fc0d9f8b4e0376e7168144717f34397506e7eba8ae181

Download Submit
memory/1032-25-0x0000000002080000-0x00000000020F4000-memory.dmp

Filesize
464KB

Download
memory/1032-26-0x0000000000400000-0x0000000000432800-memory.dmp

Filesize
202KB

Download
memory/1032-14-0x0000000000400000-0x0000000000432800-memory.dmp

Filesize
202KB

Download
memory/1032-31-0x0000000002080000-0x00000000020F4000-memory.dmp

Filesize
464KB

Download
memory/1032-32-0x0000000000400000-0x0000000000432800-memory.dmp

Filesize
202KB

Download
memory/1948-45-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download
memory/1948-42-0x00000000017E0000-0x00000000017E1000-memory.dmp

Filesize
4KB

Download
memory/4816-37-0x00000000013D0000-0x00000000013D1000-memory.dmp

Filesize
4KB

Download
memory/4816-40-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download
memory/4876-33-0x0000000002200000-0x0000000002201000-memory.dmp

Filesize
4KB

Download
memory/4876-35-0x0000000020000000-0x0000000020027000-memory.dmp

Filesize
156KB

Download
memory/5024-0-0x0000000000400000-0x0000000000432800-memory.dmp

Filesize
202KB

Download
memory/5024-9-0x0000000000401000-0x0000000000402000-memory.dmp

Filesize
4KB

Download
memory/5024-8-0x0000000000550000-0x00000000005C4000-memory.dmp

Filesize
464KB

Download
memory/5024-7-0x0000000000550000-0x00000000005C4000-memory.dmp

Filesize
464KB

Download
memory/5024-18-0x0000000000550000-0x00000000005C4000-memory.dmp

Filesize
464KB

Download
memory/5024-16-0x0000000000400000-0x0000000000432800-memory.dmp

Filesize
202KB

Download