zgrat | a024f189799cced8d2b2b164f4cc73b0eb9e12784bc977f182175bb61c17a171

Analysis

max time kernel
147s
max time network
148s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
05-01-2024 06:24

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General

Target

42faa54ab4183e9497c243e7543ac16f.exe
Size

371KB
MD5

42faa54ab4183e9497c243e7543ac16f
SHA1

89ac1eb6b7cf5e3c71966f9891b97e21a078f101
SHA256

a024f189799cced8d2b2b164f4cc73b0eb9e12784bc977f182175bb61c17a171
SHA512

8c4befdff6d72f78ef3fd0eaac34f9933bebd276f0d05863b301bc8199461ff6d7cd2ecf6eba7e1d4f1b1023613f164104c072effada5ced4a00138dbee481da
SSDEEP

6144:lTuY1NjS3LlNGyYePTDtVjSIbU2oCs8jvHtM/fifUfglQkg74PSn04ThflRHf2VF:lTVS3LloEPTDtYsZ3jPMiMga9OS04TrS

Score

10^/10

zgrat persistence rat

Malware Config

Signatures

Detect ZGRat V1 35 IoCs

resource	yara_rule
behavioral1/memory/1668-4-0x00000000051A0000-0x0000000005214000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-28-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-62-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-68-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-66-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-64-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-60-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-58-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-56-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-54-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-52-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-50-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-48-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-46-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-44-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-42-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-40-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-38-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-36-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-34-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-32-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-30-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-26-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-24-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-22-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-20-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-18-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-16-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-14-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-12-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-10-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-8-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-6-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/1668-5-0x00000000051A0000-0x000000000520F000-memory.dmp	family_zgrat_v1
behavioral1/memory/580-2383-0x0000000000400000-0x000000000042C000-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-1-5-21-3601492379-692465709-652514833-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Roaming\\dagke.exe\","	42faa54ab4183e9497c243e7543ac16f.exe

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

Executes dropped EXE 1 IoCs

pid	Process
580	RegAsm.exe

Loads dropped DLL 2 IoCs

pid	Process
1668	42faa54ab4183e9497c243e7543ac16f.exe
580	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1668 set thread context of 580	1668	42faa54ab4183e9497c243e7543ac16f.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
1668	42faa54ab4183e9497c243e7543ac16f.exe
1668	42faa54ab4183e9497c243e7543ac16f.exe
1484	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1668	42faa54ab4183e9497c243e7543ac16f.exe
Token: SeDebugPrivilege	1484	powershell.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1668 wrote to memory of 532	1668	42faa54ab4183e9497c243e7543ac16f.exe	30
PID 1668 wrote to memory of 532	1668	42faa54ab4183e9497c243e7543ac16f.exe	30
PID 1668 wrote to memory of 532	1668	42faa54ab4183e9497c243e7543ac16f.exe	30
PID 1668 wrote to memory of 532	1668	42faa54ab4183e9497c243e7543ac16f.exe	30
PID 1668 wrote to memory of 580	1668	42faa54ab4183e9497c243e7543ac16f.exe	33
PID 1668 wrote to memory of 580	1668	42faa54ab4183e9497c243e7543ac16f.exe	33
PID 1668 wrote to memory of 580	1668	42faa54ab4183e9497c243e7543ac16f.exe	33
PID 1668 wrote to memory of 580	1668	42faa54ab4183e9497c243e7543ac16f.exe	33
PID 1668 wrote to memory of 580	1668	42faa54ab4183e9497c243e7543ac16f.exe	33
PID 1668 wrote to memory of 580	1668	42faa54ab4183e9497c243e7543ac16f.exe	33
PID 1668 wrote to memory of 580	1668	42faa54ab4183e9497c243e7543ac16f.exe	33
PID 1668 wrote to memory of 580	1668	42faa54ab4183e9497c243e7543ac16f.exe	33
PID 1668 wrote to memory of 580	1668	42faa54ab4183e9497c243e7543ac16f.exe	33
PID 1668 wrote to memory of 580	1668	42faa54ab4183e9497c243e7543ac16f.exe	33
PID 1668 wrote to memory of 580	1668	42faa54ab4183e9497c243e7543ac16f.exe	33
PID 1668 wrote to memory of 580	1668	42faa54ab4183e9497c243e7543ac16f.exe	33
PID 532 wrote to memory of 1484	532	WScript.exe	32
PID 532 wrote to memory of 1484	532	WScript.exe	32
PID 532 wrote to memory of 1484	532	WScript.exe	32
PID 532 wrote to memory of 1484	532	WScript.exe	32

C:\Users\Admin\AppData\Local\Temp\42faa54ab4183e9497c243e7543ac16f.exe
"C:\Users\Admin\AppData\Local\Temp\42faa54ab4183e9497c243e7543ac16f.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1668
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\_Ayynslcijttpsmyqcwsffl.vbs"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:532
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Set-MpPreference -ExclusionPath C:\,'C:\Users\Admin\AppData\Roaming\dagke.exe'
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1484
- C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
  C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:580

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/580-2383-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1484-2391-0x0000000070840000-0x0000000070DEB000-memory.dmp

Filesize
5.7MB

Download
memory/1484-2386-0x0000000070840000-0x0000000070DEB000-memory.dmp

Filesize
5.7MB

Download
memory/1484-2387-0x0000000070840000-0x0000000070DEB000-memory.dmp

Filesize
5.7MB

Download
memory/1484-2389-0x0000000002AE0000-0x0000000002B20000-memory.dmp

Filesize
256KB

Download
memory/1484-2390-0x0000000002AE0000-0x0000000002B20000-memory.dmp

Filesize
256KB

Download
memory/1484-2388-0x0000000002AE0000-0x0000000002B20000-memory.dmp

Filesize
256KB

Download
memory/1668-32-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-22-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-64-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-60-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-58-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-56-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-54-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-52-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-50-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-48-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-46-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-44-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-42-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-40-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-38-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-36-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-34-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-0-0x00000000008A0000-0x0000000000904000-memory.dmp

Filesize
400KB

Download
memory/1668-30-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-26-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-24-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-66-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-895-0x00000000741B0000-0x000000007489E000-memory.dmp

Filesize
6.9MB

Download
memory/1668-20-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-18-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-16-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-14-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-12-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-10-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-8-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-6-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-5-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-2356-0x0000000004C40000-0x0000000004C80000-memory.dmp

Filesize
256KB

Download
memory/1668-2381-0x00000000741B0000-0x000000007489E000-memory.dmp

Filesize
6.9MB

Download
memory/1668-68-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-62-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-28-0x00000000051A0000-0x000000000520F000-memory.dmp

Filesize
444KB

Download
memory/1668-4-0x00000000051A0000-0x0000000005214000-memory.dmp

Filesize
464KB

Download
memory/1668-3-0x0000000004250000-0x00000000042A8000-memory.dmp

Filesize
352KB

Download
memory/1668-2-0x0000000004C40000-0x0000000004C80000-memory.dmp

Filesize
256KB

Download
memory/1668-1-0x00000000741B0000-0x000000007489E000-memory.dmp

Filesize
6.9MB

Download