zgrat | 8c05da461e90984671ffd87f0e4e28e057cca4d32a0569764dcdcce2d545fac2

Resubmissions

17-04-2024 14:54

240417-r96wzada86 10

17-04-2024 14:54

17-04-2024 14:54

17-04-2024 14:54

17-04-2024 14:54

15-04-2024 13:19

10-04-2024 12:02

10-04-2024 12:02

Analysis

max time kernel
122s
max time network
128s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
17-04-2024 14:54

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General

Target

75bff99becc32bcbe56efbe7a75f4d45.exe
Size

7.0MB
MD5

75bff99becc32bcbe56efbe7a75f4d45
SHA1

81bfcc77809161a5254a27d3d4d30548c96fcd5b
SHA256

8c05da461e90984671ffd87f0e4e28e057cca4d32a0569764dcdcce2d545fac2
SHA512

940af628585713a16e685eb5251c0b954bc014460cd4ca33226df2ef260f32af56223eaf1c341862fdf1669c6bafb6e7d9c5efbeb5e437ce5e2fd9905beece69
SSDEEP

49152:uW/1GYdVTXN3r3+LXDIDAKpvuh3jwLN6/VNUKIdI9OiKuDbD2yvAkdm5wrgWX+5z:hXkZL/p

Score

10^/10

zgrat persistence rat

Malware Config

Signatures

Detect ZGRat V1 34 IoCs

resource	yara_rule
behavioral1/memory/1936-5-0x00000000009F0000-0x0000000000A72000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-6-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-7-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-9-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-11-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-13-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-15-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-17-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-19-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-21-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-23-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-25-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-27-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-29-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-31-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-33-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-35-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-37-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-39-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-41-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-43-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-45-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-47-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-49-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-53-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-55-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-57-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-51-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-59-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-61-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-63-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-65-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-67-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1
behavioral1/memory/1936-69-0x00000000009F0000-0x0000000000A6C000-memory.dmp	family_zgrat_v1

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe\","	75bff99becc32bcbe56efbe7a75f4d45.exe

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

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
1936	75bff99becc32bcbe56efbe7a75f4d45.exe
1936	75bff99becc32bcbe56efbe7a75f4d45.exe
1936	75bff99becc32bcbe56efbe7a75f4d45.exe
1936	75bff99becc32bcbe56efbe7a75f4d45.exe
1936	75bff99becc32bcbe56efbe7a75f4d45.exe
1936	75bff99becc32bcbe56efbe7a75f4d45.exe
1936	75bff99becc32bcbe56efbe7a75f4d45.exe
1936	75bff99becc32bcbe56efbe7a75f4d45.exe
1936	75bff99becc32bcbe56efbe7a75f4d45.exe
1936	75bff99becc32bcbe56efbe7a75f4d45.exe
1936	75bff99becc32bcbe56efbe7a75f4d45.exe
1936	75bff99becc32bcbe56efbe7a75f4d45.exe
1936	75bff99becc32bcbe56efbe7a75f4d45.exe
1936	75bff99becc32bcbe56efbe7a75f4d45.exe
1936	75bff99becc32bcbe56efbe7a75f4d45.exe
1936	75bff99becc32bcbe56efbe7a75f4d45.exe
1936	75bff99becc32bcbe56efbe7a75f4d45.exe
1936	75bff99becc32bcbe56efbe7a75f4d45.exe
1936	75bff99becc32bcbe56efbe7a75f4d45.exe
1936	75bff99becc32bcbe56efbe7a75f4d45.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1936	75bff99becc32bcbe56efbe7a75f4d45.exe

Suspicious use of WriteProcessMemory 40 IoCs

description	pid	Process	procid_target
PID 1936 wrote to memory of 2896	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	30
PID 1936 wrote to memory of 2896	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	30
PID 1936 wrote to memory of 2896	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	30
PID 1936 wrote to memory of 2896	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	30
PID 1936 wrote to memory of 2676	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	31
PID 1936 wrote to memory of 2676	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	31
PID 1936 wrote to memory of 2676	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	31
PID 1936 wrote to memory of 2676	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	31
PID 1936 wrote to memory of 2908	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	32
PID 1936 wrote to memory of 2908	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	32
PID 1936 wrote to memory of 2908	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	32
PID 1936 wrote to memory of 2908	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	32
PID 1936 wrote to memory of 2252	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	33
PID 1936 wrote to memory of 2252	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	33
PID 1936 wrote to memory of 2252	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	33
PID 1936 wrote to memory of 2252	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	33
PID 1936 wrote to memory of 1812	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	34
PID 1936 wrote to memory of 1812	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	34
PID 1936 wrote to memory of 1812	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	34
PID 1936 wrote to memory of 1812	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	34
PID 1936 wrote to memory of 2396	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	35
PID 1936 wrote to memory of 2396	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	35
PID 1936 wrote to memory of 2396	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	35
PID 1936 wrote to memory of 2396	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	35
PID 1936 wrote to memory of 2400	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	36
PID 1936 wrote to memory of 2400	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	36
PID 1936 wrote to memory of 2400	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	36
PID 1936 wrote to memory of 2400	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	36
PID 1936 wrote to memory of 1840	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	37
PID 1936 wrote to memory of 1840	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	37
PID 1936 wrote to memory of 1840	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	37
PID 1936 wrote to memory of 1840	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	37
PID 1936 wrote to memory of 2488	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	38
PID 1936 wrote to memory of 2488	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	38
PID 1936 wrote to memory of 2488	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	38
PID 1936 wrote to memory of 2488	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	38
PID 1936 wrote to memory of 660	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	39
PID 1936 wrote to memory of 660	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	39
PID 1936 wrote to memory of 660	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	39
PID 1936 wrote to memory of 660	1936	75bff99becc32bcbe56efbe7a75f4d45.exe	39

C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
"C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe"
1⤵
- Modifies WinLogon for persistence
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1936
- C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  2⤵
  PID:2896
- C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  2⤵
  PID:2676
- C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  2⤵
  PID:2908
- C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  2⤵
  PID:2252
- C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  2⤵
  PID:1812
- C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  2⤵
  PID:2396
- C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  2⤵
  PID:2400
- C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  2⤵
  PID:1840
- C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  2⤵
  PID:2488
- C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  2⤵
  PID:660

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1936-0-0x0000000073CA0000-0x000000007438E000-memory.dmp

Filesize
6.9MB

Download
memory/1936-1-0x00000000002E0000-0x00000000009E8000-memory.dmp

Filesize
7.0MB

Download
memory/1936-2-0x00000000055E0000-0x0000000005620000-memory.dmp

Filesize
256KB

Download
memory/1936-3-0x0000000073CA0000-0x000000007438E000-memory.dmp

Filesize
6.9MB

Download
memory/1936-4-0x0000000009500000-0x0000000009A20000-memory.dmp

Filesize
5.1MB

Download
memory/1936-5-0x00000000009F0000-0x0000000000A72000-memory.dmp

Filesize
520KB

Download
memory/1936-6-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-7-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-9-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-11-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-13-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-15-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-17-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-19-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-21-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-23-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-25-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-27-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-29-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-31-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-33-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-35-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-37-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-39-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-41-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-43-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-45-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-47-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-49-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-53-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-55-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-57-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-51-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-59-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-61-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-63-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-65-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-67-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-69-0x00000000009F0000-0x0000000000A6C000-memory.dmp

Filesize
496KB

Download
memory/1936-2433-0x0000000073CA0000-0x000000007438E000-memory.dmp

Filesize
6.9MB

Download