zgrat | f762e754543decaa05f5a48eb894db18c2396feac1f983dc732b17e5563cf246

Analysis

max time kernel
119s
max time network
126s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
29/01/2024, 05:22

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General

Target

file.exe
Size

420KB
MD5

4637890c14f37ece8321cf079192acd2
SHA1

8ab20768d020d40988fb848eeabb8efb16459330
SHA256

f762e754543decaa05f5a48eb894db18c2396feac1f983dc732b17e5563cf246
SHA512

977fac279c2e4852689cc4f65f4ef15cba035ac6b88d5b87e297ab2a8b73c12a6f29b3c58e5bacaedd86c1a4a8d2fcc175054a7eb273bdc9f11819c6631470cd
SSDEEP

6144:IbUCjzAieqUWBh4HtbcOdSTzUhDUKtNNhmQiBgZCxahmGatV48Mzr0YRDmX7:niDlh4HVcOiUxr3hmhC7h9warjR4

Score

10^/10

zgrat persistence rat

Malware Config

Signatures

Detect ZGRat V1 34 IoCs

resource	yara_rule
behavioral1/memory/1940-3-0x0000000004130000-0x0000000004206000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-4-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-7-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-5-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-9-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-11-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-17-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-15-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-13-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-29-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-27-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-25-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-23-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-21-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-19-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-31-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-35-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-37-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-33-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-43-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-41-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-53-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-51-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-49-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-47-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-45-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-65-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-67-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-63-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-61-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-59-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-57-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-55-0x0000000004130000-0x0000000004200000-memory.dmp	family_zgrat_v1
behavioral1/memory/1940-39-0x0000000004130000-0x0000000004200000-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-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Windows\CurrentVersion\Run\file = "C:\\Users\\Admin\\AppData\\Local\\Temp\\file.exe"	powershell.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1872	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1940	file.exe
Token: SeDebugPrivilege	1872	powershell.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1940 wrote to memory of 1872	1940	file.exe	29
PID 1940 wrote to memory of 1872	1940	file.exe	29
PID 1940 wrote to memory of 1872	1940	file.exe	29
PID 1940 wrote to memory of 1872	1940	file.exe	29

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1940
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell.exe" Remove-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'file';New-ItemProperty -Path 'HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run' -Name 'file' -Value '"C:\Users\Admin\AppData\Local\Temp\file.exe"' -PropertyType 'String'
  2⤵
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1872

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Cab6AE5.tmp

Filesize
65KB

MD5
ac05d27423a85adc1622c714f2cb6184

SHA1
b0fe2b1abddb97837ea0195be70ab2ff14d43198

SHA256
c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

SHA512
6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

Download Submit
memory/1872-6078-0x00000000711D0000-0x000000007177B000-memory.dmp

Filesize
5.7MB

Download
memory/1872-6083-0x00000000711D0000-0x000000007177B000-memory.dmp

Filesize
5.7MB

Download
memory/1872-6082-0x00000000711D0000-0x000000007177B000-memory.dmp

Filesize
5.7MB

Download
memory/1872-6081-0x0000000000310000-0x0000000000350000-memory.dmp

Filesize
256KB

Download
memory/1872-6080-0x0000000000310000-0x0000000000350000-memory.dmp

Filesize
256KB

Download
memory/1872-6079-0x0000000000310000-0x0000000000350000-memory.dmp

Filesize
256KB

Download
memory/1940-43-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-49-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-17-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-15-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-13-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-29-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-27-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-25-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-23-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-21-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-19-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-31-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-35-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-37-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-33-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-0-0x0000000000B40000-0x0000000000BB0000-memory.dmp

Filesize
448KB

Download
memory/1940-41-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-53-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-51-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-11-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-47-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-45-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-65-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-67-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-63-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-61-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-59-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-57-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-55-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-39-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-9-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-5-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-7-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-4-0x0000000004130000-0x0000000004200000-memory.dmp

Filesize
832KB

Download
memory/1940-3-0x0000000004130000-0x0000000004206000-memory.dmp

Filesize
856KB

Download
memory/1940-2-0x0000000004270000-0x00000000042B0000-memory.dmp

Filesize
256KB

Download
memory/1940-1-0x0000000074870000-0x0000000074F5E000-memory.dmp

Filesize
6.9MB

Download
memory/1940-6100-0x0000000074870000-0x0000000074F5E000-memory.dmp

Filesize
6.9MB

Download
memory/1940-6101-0x0000000004270000-0x00000000042B0000-memory.dmp

Filesize
256KB

Download