blustealer | d6390558e6f860877f95e6cf83ebc2fa028da6f469d75f73b27afe92900fbc7f

Resubmissions

27-02-2024 15:25

240227-stkjgacg5s 10

27-02-2024 15:21

240227-srp16scc78 10

Analysis

max time kernel
117s
max time network
118s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
27-02-2024 15:25

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General

Target

a97ccd364ed034769bd7a0e41d823ebf.exe
Size

754KB
MD5

a97ccd364ed034769bd7a0e41d823ebf
SHA1

ca4e9380a6ac5fe37d204cc055fb7f63cf764383
SHA256

d6390558e6f860877f95e6cf83ebc2fa028da6f469d75f73b27afe92900fbc7f
SHA512

b9c716b17d105a97cd161f9585e3b69a9b4b40091bb07c5e0cef79a257bb26a5076a58a649b4db6bb0a67990d980292df657b4187ff348a66748355a18699770
SSDEEP

12288:Nte7/9xRNdnCGjIz8L4frvaRHELXq24z3P8cUdKFoUU5Czd0/FU1F3:uf9nXIoL4frSELq1LP84dU5CJ0/w

Score

10^/10

blustealer zgrat persistence rat stealer

Malware Config

Signatures

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

Detect ZGRat V1 34 IoCs

resource	yara_rule
behavioral1/memory/1968-22-0x0000000008290000-0x00000000082F8000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-23-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-24-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-26-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-38-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-46-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-56-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-58-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-64-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-68-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-80-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-86-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-84-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-82-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-78-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-76-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-74-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-72-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-70-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-66-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-62-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-60-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-54-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-52-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-50-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-48-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-44-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-42-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-40-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-36-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-34-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-32-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-30-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1
behavioral1/memory/1968-28-0x0000000008290000-0x00000000082F3000-memory.dmp	family_zgrat_v1

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

Deletes itself 1 IoCs

pid	Process
816	powershell.exe

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-1-5-21-3452737119-3959686427-228443150-1000\Software\Microsoft\Windows\CurrentVersion\Run\chrom = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\chrome\\chrom.exe\""	a97ccd364ed034769bd7a0e41d823ebf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1968 set thread context of 1248	1968	a97ccd364ed034769bd7a0e41d823ebf.exe	37

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
2492	powershell.exe
2624	powershell.exe
1968	a97ccd364ed034769bd7a0e41d823ebf.exe
1968	a97ccd364ed034769bd7a0e41d823ebf.exe
1968	a97ccd364ed034769bd7a0e41d823ebf.exe
1968	a97ccd364ed034769bd7a0e41d823ebf.exe
1968	a97ccd364ed034769bd7a0e41d823ebf.exe
1968	a97ccd364ed034769bd7a0e41d823ebf.exe
816	powershell.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2492	powershell.exe
Token: SeDebugPrivilege	2624	powershell.exe
Token: SeDebugPrivilege	1968	a97ccd364ed034769bd7a0e41d823ebf.exe
Token: SeDebugPrivilege	816	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1248	a97ccd364ed034769bd7a0e41d823ebf.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 1968 wrote to memory of 2492	1968	a97ccd364ed034769bd7a0e41d823ebf.exe	28
PID 1968 wrote to memory of 2492	1968	a97ccd364ed034769bd7a0e41d823ebf.exe	28
PID 1968 wrote to memory of 2492	1968	a97ccd364ed034769bd7a0e41d823ebf.exe	28
PID 1968 wrote to memory of 2492	1968	a97ccd364ed034769bd7a0e41d823ebf.exe	28
PID 1968 wrote to memory of 2624	1968	a97ccd364ed034769bd7a0e41d823ebf.exe	30
PID 1968 wrote to memory of 2624	1968	a97ccd364ed034769bd7a0e41d823ebf.exe	30
PID 1968 wrote to memory of 2624	1968	a97ccd364ed034769bd7a0e41d823ebf.exe	30
PID 1968 wrote to memory of 2624	1968	a97ccd364ed034769bd7a0e41d823ebf.exe	30
PID 1968 wrote to memory of 816	1968	a97ccd364ed034769bd7a0e41d823ebf.exe	34
PID 1968 wrote to memory of 816	1968	a97ccd364ed034769bd7a0e41d823ebf.exe	34
PID 1968 wrote to memory of 816	1968	a97ccd364ed034769bd7a0e41d823ebf.exe	34
PID 1968 wrote to memory of 816	1968	a97ccd364ed034769bd7a0e41d823ebf.exe	34
PID 1968 wrote to memory of 2360	1968	a97ccd364ed034769bd7a0e41d823ebf.exe	36
PID 1968 wrote to memory of 2360	1968	a97ccd364ed034769bd7a0e41d823ebf.exe	36
PID 1968 wrote to memory of 2360	1968	a97ccd364ed034769bd7a0e41d823ebf.exe	36
PID 1968 wrote to memory of 2360	1968	a97ccd364ed034769bd7a0e41d823ebf.exe	36
PID 1968 wrote to memory of 1248	1968	a97ccd364ed034769bd7a0e41d823ebf.exe	37
PID 1968 wrote to memory of 1248	1968	a97ccd364ed034769bd7a0e41d823ebf.exe	37
PID 1968 wrote to memory of 1248	1968	a97ccd364ed034769bd7a0e41d823ebf.exe	37
PID 1968 wrote to memory of 1248	1968	a97ccd364ed034769bd7a0e41d823ebf.exe	37
PID 1968 wrote to memory of 1248	1968	a97ccd364ed034769bd7a0e41d823ebf.exe	37
PID 1968 wrote to memory of 1248	1968	a97ccd364ed034769bd7a0e41d823ebf.exe	37
PID 1968 wrote to memory of 1248	1968	a97ccd364ed034769bd7a0e41d823ebf.exe	37
PID 1968 wrote to memory of 1248	1968	a97ccd364ed034769bd7a0e41d823ebf.exe	37
PID 1968 wrote to memory of 1248	1968	a97ccd364ed034769bd7a0e41d823ebf.exe	37

C:\Users\Admin\AppData\Local\Temp\a97ccd364ed034769bd7a0e41d823ebf.exe
"C:\Users\Admin\AppData\Local\Temp\a97ccd364ed034769bd7a0e41d823ebf.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Write-Output Hello World
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2492
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Write-Output Hello World
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2624
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Start-Sleep -s 5; Remove-Item -Path "C:\Users\Admin\AppData\Local\Temp\a97ccd364ed034769bd7a0e41d823ebf.exe" -Force
  2⤵
  - Deletes itself
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:816
- C:\Users\Admin\AppData\Local\Temp\a97ccd364ed034769bd7a0e41d823ebf.exe
  C:\Users\Admin\AppData\Local\Temp\a97ccd364ed034769bd7a0e41d823ebf.exe
  2⤵
  PID:2360
- C:\Users\Admin\AppData\Local\Temp\a97ccd364ed034769bd7a0e41d823ebf.exe
  C:\Users\Admin\AppData\Local\Temp\a97ccd364ed034769bd7a0e41d823ebf.exe
  2⤵
  - Suspicious use of SetWindowsHookEx
  PID:1248

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

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
ca60e15977510af9e8e60ab2b42de954

SHA1
d39d2a415d5c6de38492c5c59496d4421766c8a3

SHA256
4be1affd67caecb3dba8b14590d8cdfce95c9a1f374099f2c3ed183efdb1efb6

SHA512
46b4ec9e1753d3dfc4febefa101d35ec3470558d3351c1ed7ac641cd8d6db949d69f0ca1241ed4cdb7a7850c5555d50b83eb87f052fc83d40df3ba59f861cc9f

Download Submit
memory/816-2034-0x000000006F530000-0x000000006FADB000-memory.dmp

Filesize
5.7MB

Download
memory/816-2028-0x0000000002ED0000-0x0000000002F10000-memory.dmp

Filesize
256KB

Download
memory/816-2025-0x000000006F530000-0x000000006FADB000-memory.dmp

Filesize
5.7MB

Download
memory/816-2027-0x0000000002ED0000-0x0000000002F10000-memory.dmp

Filesize
256KB

Download
memory/816-2024-0x0000000002ED0000-0x0000000002F10000-memory.dmp

Filesize
256KB

Download
memory/816-2023-0x000000006F530000-0x000000006FADB000-memory.dmp

Filesize
5.7MB

Download
memory/1248-2033-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/1248-2032-0x0000000000400000-0x000000000047A000-memory.dmp

Filesize
488KB

Download
memory/1968-72-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-50-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-23-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-24-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-26-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-38-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-46-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-56-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-58-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-64-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-68-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-80-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-86-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-84-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-82-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-78-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-76-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-74-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-1-0x0000000074640000-0x0000000074D2E000-memory.dmp

Filesize
6.9MB

Download
memory/1968-70-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-66-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-62-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-60-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-54-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-52-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-0-0x0000000000090000-0x0000000000152000-memory.dmp

Filesize
776KB

Download
memory/1968-48-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-44-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-42-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-40-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-36-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-34-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-32-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-30-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-28-0x0000000008290000-0x00000000082F3000-memory.dmp

Filesize
396KB

Download
memory/1968-2-0x0000000004580000-0x00000000045C0000-memory.dmp

Filesize
256KB

Download
memory/1968-18-0x0000000074640000-0x0000000074D2E000-memory.dmp

Filesize
6.9MB

Download
memory/1968-22-0x0000000008290000-0x00000000082F8000-memory.dmp

Filesize
416KB

Download
memory/1968-2026-0x0000000074640000-0x0000000074D2E000-memory.dmp

Filesize
6.9MB

Download
memory/1968-21-0x0000000008570000-0x0000000008612000-memory.dmp

Filesize
648KB

Download
memory/1968-19-0x0000000004580000-0x00000000045C0000-memory.dmp

Filesize
256KB

Download
memory/2492-5-0x000000006F890000-0x000000006FE3B000-memory.dmp

Filesize
5.7MB

Download
memory/2492-6-0x0000000000300000-0x0000000000340000-memory.dmp

Filesize
256KB

Download
memory/2492-8-0x0000000000300000-0x0000000000340000-memory.dmp

Filesize
256KB

Download
memory/2492-7-0x000000006F890000-0x000000006FE3B000-memory.dmp

Filesize
5.7MB

Download
memory/2492-9-0x000000006F890000-0x000000006FE3B000-memory.dmp

Filesize
5.7MB

Download
memory/2624-15-0x000000006F5E0000-0x000000006FB8B000-memory.dmp

Filesize
5.7MB

Download
memory/2624-16-0x000000006F5E0000-0x000000006FB8B000-memory.dmp

Filesize
5.7MB

Download
memory/2624-17-0x000000006F5E0000-0x000000006FB8B000-memory.dmp

Filesize
5.7MB

Download