blustealer | 3d92d6a34be40684493e0cee2f5c772ec4a1f731cf8b371cad1eb9c492d9f63d

Analysis

max time kernel
122s
max time network
125s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
15-01-2024 18:10

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General

Target

5dbd6684e5601b2f8e748e02fa898558.exe
Size

892KB
MD5

5dbd6684e5601b2f8e748e02fa898558
SHA1

9a83397decf87975576dbb4fced3d9b611846c39
SHA256

3d92d6a34be40684493e0cee2f5c772ec4a1f731cf8b371cad1eb9c492d9f63d
SHA512

79cdc806624ff9ad1e2f5e20280880db099055380d0d27a4560d846288280b4d076c3f2e0b4742e665454db3df1f2f9f9d84abacad8c17fea99dc7e1772e27d9
SSDEEP

12288:1FYf861bQyPlY7a3q6GQShv8me5CZMg/ln1/7x8a0Ti+l:1i06xQta3qxapkFLo2

Score

10^/10

blustealer zgrat persistence rat stealer

Malware Config

Extracted

Family

blustealer

Credentials

Protocol: smtp
Host:
bojtai.xyz
Port:
587
Username:
[email protected]
Password:
(mr.GT^Eg#C6

Signatures

BluStealer
A Modular information stealer written in Visual Basic.
stealer blustealer

Detect ZGRat V1 8 IoCs

resource	yara_rule
behavioral1/memory/1704-67-0x0000000004D50000-0x0000000004DB2000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-68-0x0000000004D50000-0x0000000004DAC000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-71-0x0000000004D50000-0x0000000004DAC000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-69-0x0000000004D50000-0x0000000004DAC000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-73-0x0000000004D50000-0x0000000004DAC000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-79-0x0000000004D50000-0x0000000004DAC000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-77-0x0000000004D50000-0x0000000004DAC000-memory.dmp	family_zgrat_v1
behavioral1/memory/1704-75-0x0000000004D50000-0x0000000004DAC000-memory.dmp	family_zgrat_v1

ZGRat
ZGRat is remote access trojan written in C#.
rat zgrat

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000\Software\Microsoft\Windows\CurrentVersion\Run\chr = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\chro\\chr.exe\""	5dbd6684e5601b2f8e748e02fa898558.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1704 set thread context of 1068	1704	5dbd6684e5601b2f8e748e02fa898558.exe	33

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2392	powershell.exe
1704	5dbd6684e5601b2f8e748e02fa898558.exe
1704	5dbd6684e5601b2f8e748e02fa898558.exe

Suspicious use of AdjustPrivilegeToken 22 IoCs

description	pid	Process
Token: SeDebugPrivilege	2392	powershell.exe
Token: SeIncreaseQuotaPrivilege	2392	powershell.exe
Token: SeSecurityPrivilege	2392	powershell.exe
Token: SeTakeOwnershipPrivilege	2392	powershell.exe
Token: SeLoadDriverPrivilege	2392	powershell.exe
Token: SeSystemProfilePrivilege	2392	powershell.exe
Token: SeSystemtimePrivilege	2392	powershell.exe
Token: SeProfSingleProcessPrivilege	2392	powershell.exe
Token: SeIncBasePriorityPrivilege	2392	powershell.exe
Token: SeCreatePagefilePrivilege	2392	powershell.exe
Token: SeBackupPrivilege	2392	powershell.exe
Token: SeRestorePrivilege	2392	powershell.exe
Token: SeShutdownPrivilege	2392	powershell.exe
Token: SeDebugPrivilege	2392	powershell.exe
Token: SeSystemEnvironmentPrivilege	2392	powershell.exe
Token: SeRemoteShutdownPrivilege	2392	powershell.exe
Token: SeUndockPrivilege	2392	powershell.exe
Token: SeManageVolumePrivilege	2392	powershell.exe
Token: 33	2392	powershell.exe
Token: 34	2392	powershell.exe
Token: 35	2392	powershell.exe
Token: SeDebugPrivilege	1704	5dbd6684e5601b2f8e748e02fa898558.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1068	5dbd6684e5601b2f8e748e02fa898558.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1704 wrote to memory of 2392	1704	5dbd6684e5601b2f8e748e02fa898558.exe	28
PID 1704 wrote to memory of 2392	1704	5dbd6684e5601b2f8e748e02fa898558.exe	28
PID 1704 wrote to memory of 2392	1704	5dbd6684e5601b2f8e748e02fa898558.exe	28
PID 1704 wrote to memory of 2392	1704	5dbd6684e5601b2f8e748e02fa898558.exe	28
PID 1704 wrote to memory of 1068	1704	5dbd6684e5601b2f8e748e02fa898558.exe	33
PID 1704 wrote to memory of 1068	1704	5dbd6684e5601b2f8e748e02fa898558.exe	33
PID 1704 wrote to memory of 1068	1704	5dbd6684e5601b2f8e748e02fa898558.exe	33
PID 1704 wrote to memory of 1068	1704	5dbd6684e5601b2f8e748e02fa898558.exe	33
PID 1704 wrote to memory of 1068	1704	5dbd6684e5601b2f8e748e02fa898558.exe	33
PID 1704 wrote to memory of 1068	1704	5dbd6684e5601b2f8e748e02fa898558.exe	33
PID 1704 wrote to memory of 1068	1704	5dbd6684e5601b2f8e748e02fa898558.exe	33
PID 1704 wrote to memory of 1068	1704	5dbd6684e5601b2f8e748e02fa898558.exe	33
PID 1704 wrote to memory of 1068	1704	5dbd6684e5601b2f8e748e02fa898558.exe	33

C:\Users\Admin\AppData\Local\Temp\5dbd6684e5601b2f8e748e02fa898558.exe
"C:\Users\Admin\AppData\Local\Temp\5dbd6684e5601b2f8e748e02fa898558.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1704
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Test-Connection 8.8.8.8, 8.8.4.4, time.google.com
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2392
- C:\Users\Admin\AppData\Local\Temp\5dbd6684e5601b2f8e748e02fa898558.exe
  C:\Users\Admin\AppData\Local\Temp\5dbd6684e5601b2f8e748e02fa898558.exe
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:1068

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1068-2105-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1068-2107-0x0000000000400000-0x0000000000476000-memory.dmp

Filesize
472KB

Download
memory/1704-53-0x0000000005BB0000-0x0000000005C60000-memory.dmp

Filesize
704KB

Download
memory/1704-14-0x0000000005BB0000-0x0000000005C60000-memory.dmp

Filesize
704KB

Download
memory/1704-0-0x00000000002F0000-0x00000000003D6000-memory.dmp

Filesize
920KB

Download
memory/1704-13-0x0000000005BB0000-0x0000000005C66000-memory.dmp

Filesize
728KB

Download
memory/1704-57-0x0000000005BB0000-0x0000000005C60000-memory.dmp

Filesize
704KB

Download
memory/1704-15-0x0000000005BB0000-0x0000000005C60000-memory.dmp

Filesize
704KB

Download
memory/1704-1-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/1704-17-0x0000000005BB0000-0x0000000005C60000-memory.dmp

Filesize
704KB

Download
memory/1704-19-0x0000000005BB0000-0x0000000005C60000-memory.dmp

Filesize
704KB

Download
memory/1704-21-0x0000000005BB0000-0x0000000005C60000-memory.dmp

Filesize
704KB

Download
memory/1704-23-0x0000000005BB0000-0x0000000005C60000-memory.dmp

Filesize
704KB

Download
memory/1704-25-0x0000000005BB0000-0x0000000005C60000-memory.dmp

Filesize
704KB

Download
memory/1704-27-0x0000000005BB0000-0x0000000005C60000-memory.dmp

Filesize
704KB

Download
memory/1704-29-0x0000000005BB0000-0x0000000005C60000-memory.dmp

Filesize
704KB

Download
memory/1704-31-0x0000000005BB0000-0x0000000005C60000-memory.dmp

Filesize
704KB

Download
memory/1704-55-0x0000000005BB0000-0x0000000005C60000-memory.dmp

Filesize
704KB

Download
memory/1704-35-0x0000000005BB0000-0x0000000005C60000-memory.dmp

Filesize
704KB

Download
memory/1704-37-0x0000000005BB0000-0x0000000005C60000-memory.dmp

Filesize
704KB

Download
memory/1704-39-0x0000000005BB0000-0x0000000005C60000-memory.dmp

Filesize
704KB

Download
memory/1704-41-0x0000000005BB0000-0x0000000005C60000-memory.dmp

Filesize
704KB

Download
memory/1704-43-0x0000000005BB0000-0x0000000005C60000-memory.dmp

Filesize
704KB

Download
memory/1704-45-0x0000000005BB0000-0x0000000005C60000-memory.dmp

Filesize
704KB

Download
memory/1704-47-0x0000000005BB0000-0x0000000005C60000-memory.dmp

Filesize
704KB

Download
memory/1704-51-0x0000000005BB0000-0x0000000005C60000-memory.dmp

Filesize
704KB

Download
memory/1704-12-0x0000000004BF0000-0x0000000004C30000-memory.dmp

Filesize
256KB

Download
memory/1704-11-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/1704-33-0x0000000005BB0000-0x0000000005C60000-memory.dmp

Filesize
704KB

Download
memory/1704-49-0x0000000005BB0000-0x0000000005C60000-memory.dmp

Filesize
704KB

Download
memory/1704-59-0x0000000005BB0000-0x0000000005C60000-memory.dmp

Filesize
704KB

Download
memory/1704-61-0x0000000005BB0000-0x0000000005C60000-memory.dmp

Filesize
704KB

Download
memory/1704-63-0x0000000005BB0000-0x0000000005C60000-memory.dmp

Filesize
704KB

Download
memory/1704-65-0x0000000005BB0000-0x0000000005C60000-memory.dmp

Filesize
704KB

Download
memory/1704-66-0x0000000004BF0000-0x0000000004C30000-memory.dmp

Filesize
256KB

Download
memory/1704-67-0x0000000004D50000-0x0000000004DB2000-memory.dmp

Filesize
392KB

Download
memory/1704-68-0x0000000004D50000-0x0000000004DAC000-memory.dmp

Filesize
368KB

Download
memory/1704-71-0x0000000004D50000-0x0000000004DAC000-memory.dmp

Filesize
368KB

Download
memory/1704-69-0x0000000004D50000-0x0000000004DAC000-memory.dmp

Filesize
368KB

Download
memory/1704-73-0x0000000004D50000-0x0000000004DAC000-memory.dmp

Filesize
368KB

Download
memory/1704-79-0x0000000004D50000-0x0000000004DAC000-memory.dmp

Filesize
368KB

Download
memory/1704-77-0x0000000004D50000-0x0000000004DAC000-memory.dmp

Filesize
368KB

Download
memory/1704-75-0x0000000004D50000-0x0000000004DAC000-memory.dmp

Filesize
368KB

Download
memory/1704-2092-0x0000000004BF0000-0x0000000004C30000-memory.dmp

Filesize
256KB

Download
memory/1704-2103-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/1704-2-0x0000000004BF0000-0x0000000004C30000-memory.dmp

Filesize
256KB

Download
memory/2392-5-0x000000006FD40000-0x00000000702EB000-memory.dmp

Filesize
5.7MB

Download
memory/2392-6-0x000000006FD40000-0x00000000702EB000-memory.dmp

Filesize
5.7MB

Download
memory/2392-8-0x0000000002830000-0x0000000002870000-memory.dmp

Filesize
256KB

Download
memory/2392-7-0x0000000002830000-0x0000000002870000-memory.dmp

Filesize
256KB

Download
memory/2392-9-0x0000000002830000-0x0000000002870000-memory.dmp

Filesize
256KB

Download
memory/2392-10-0x000000006FD40000-0x00000000702EB000-memory.dmp

Filesize
5.7MB

Download