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
90s
max time network
202s
platform
windows11-21h2_x64
resource
win11-20240221-en
resource tags

arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
submitted
10-04-2024 12:02

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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
behavioral4/memory/4920-8-0x0000000003890000-0x0000000003912000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-10-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-9-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-12-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-14-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-16-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-18-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-20-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-22-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-24-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-26-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-28-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-32-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-30-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-34-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-36-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-38-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-40-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-42-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-44-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-46-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-52-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-50-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-48-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-54-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-58-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-60-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-56-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-62-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-64-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-66-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-68-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-70-0x0000000003890000-0x000000000390C000-memory.dmp	family_zgrat_v1
behavioral4/memory/4920-72-0x0000000003890000-0x000000000390C000-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-1-5-21-1637591879-962683004-3585269084-1000\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 40 IoCs

pid	Process
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe
4920	75bff99becc32bcbe56efbe7a75f4d45.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4920	75bff99becc32bcbe56efbe7a75f4d45.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 4920 wrote to memory of 1916	4920	75bff99becc32bcbe56efbe7a75f4d45.exe	76
PID 4920 wrote to memory of 1916	4920	75bff99becc32bcbe56efbe7a75f4d45.exe	76
PID 4920 wrote to memory of 1916	4920	75bff99becc32bcbe56efbe7a75f4d45.exe	76
PID 4920 wrote to memory of 4400	4920	75bff99becc32bcbe56efbe7a75f4d45.exe	77
PID 4920 wrote to memory of 4400	4920	75bff99becc32bcbe56efbe7a75f4d45.exe	77
PID 4920 wrote to memory of 4400	4920	75bff99becc32bcbe56efbe7a75f4d45.exe	77
PID 4920 wrote to memory of 3820	4920	75bff99becc32bcbe56efbe7a75f4d45.exe	78
PID 4920 wrote to memory of 3820	4920	75bff99becc32bcbe56efbe7a75f4d45.exe	78
PID 4920 wrote to memory of 3820	4920	75bff99becc32bcbe56efbe7a75f4d45.exe	78
PID 4920 wrote to memory of 3932	4920	75bff99becc32bcbe56efbe7a75f4d45.exe	79
PID 4920 wrote to memory of 3932	4920	75bff99becc32bcbe56efbe7a75f4d45.exe	79
PID 4920 wrote to memory of 3932	4920	75bff99becc32bcbe56efbe7a75f4d45.exe	79
PID 4920 wrote to memory of 4600	4920	75bff99becc32bcbe56efbe7a75f4d45.exe	80
PID 4920 wrote to memory of 4600	4920	75bff99becc32bcbe56efbe7a75f4d45.exe	80
PID 4920 wrote to memory of 4600	4920	75bff99becc32bcbe56efbe7a75f4d45.exe	80
PID 4920 wrote to memory of 4620	4920	75bff99becc32bcbe56efbe7a75f4d45.exe	81
PID 4920 wrote to memory of 4620	4920	75bff99becc32bcbe56efbe7a75f4d45.exe	81
PID 4920 wrote to memory of 4620	4920	75bff99becc32bcbe56efbe7a75f4d45.exe	81
PID 4920 wrote to memory of 1972	4920	75bff99becc32bcbe56efbe7a75f4d45.exe	82
PID 4920 wrote to memory of 1972	4920	75bff99becc32bcbe56efbe7a75f4d45.exe	82
PID 4920 wrote to memory of 1972	4920	75bff99becc32bcbe56efbe7a75f4d45.exe	82
PID 4920 wrote to memory of 3944	4920	75bff99becc32bcbe56efbe7a75f4d45.exe	83
PID 4920 wrote to memory of 3944	4920	75bff99becc32bcbe56efbe7a75f4d45.exe	83
PID 4920 wrote to memory of 3944	4920	75bff99becc32bcbe56efbe7a75f4d45.exe	83
PID 4920 wrote to memory of 3288	4920	75bff99becc32bcbe56efbe7a75f4d45.exe	84
PID 4920 wrote to memory of 3288	4920	75bff99becc32bcbe56efbe7a75f4d45.exe	84
PID 4920 wrote to memory of 3288	4920	75bff99becc32bcbe56efbe7a75f4d45.exe	84
PID 4920 wrote to memory of 248	4920	75bff99becc32bcbe56efbe7a75f4d45.exe	85
PID 4920 wrote to memory of 248	4920	75bff99becc32bcbe56efbe7a75f4d45.exe	85
PID 4920 wrote to memory of 248	4920	75bff99becc32bcbe56efbe7a75f4d45.exe	85

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:4920
- C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  2⤵
  PID:1916
- C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  2⤵
  PID:4400
- C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  2⤵
  PID:3820
- C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  2⤵
  PID:3932
- C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  2⤵
  PID:4600
- C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  2⤵
  PID:4620
- C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  2⤵
  PID:1972
- C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  2⤵
  PID:3944
- C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  2⤵
  PID:3288
- C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  C:\Users\Admin\AppData\Local\Temp\75bff99becc32bcbe56efbe7a75f4d45.exe
  2⤵
  PID:248

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/4920-0-0x0000000074BC0000-0x0000000075371000-memory.dmp

Filesize
7.7MB

Download
memory/4920-1-0x0000000000E50000-0x0000000001558000-memory.dmp

Filesize
7.0MB

Download
memory/4920-2-0x00000000065A0000-0x0000000006B46000-memory.dmp

Filesize
5.6MB

Download
memory/4920-3-0x0000000006090000-0x0000000006122000-memory.dmp

Filesize
584KB

Download
memory/4920-4-0x0000000006250000-0x0000000006260000-memory.dmp

Filesize
64KB

Download
memory/4920-5-0x0000000006010000-0x000000000601A000-memory.dmp

Filesize
40KB

Download
memory/4920-6-0x0000000074BC0000-0x0000000075371000-memory.dmp

Filesize
7.7MB

Download
memory/4920-7-0x0000000008A70000-0x0000000008F90000-memory.dmp

Filesize
5.1MB

Download
memory/4920-8-0x0000000003890000-0x0000000003912000-memory.dmp

Filesize
520KB

Download
memory/4920-10-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-9-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-12-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-14-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-16-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-18-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-20-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-22-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-24-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-26-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-28-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-32-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-30-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-34-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-36-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-38-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-40-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-42-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-44-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-46-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-52-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-50-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-48-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-54-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-58-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-60-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-56-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-62-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-64-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-66-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-68-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-70-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-72-0x0000000003890000-0x000000000390C000-memory.dmp

Filesize
496KB

Download
memory/4920-272-0x0000000006250000-0x0000000006260000-memory.dmp

Filesize
64KB

Download
memory/4920-2438-0x0000000074BC0000-0x0000000075371000-memory.dmp

Filesize
7.7MB

Download