zgrat | fffa9ead850e0fcaf571a59b808bf2b2d25b465be4d7300b3f828c63ac779259

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31-12-2023 06:38

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General

Target

2becacc54640ee85368060f50cdf970c.exe
Size

1.7MB
MD5

2becacc54640ee85368060f50cdf970c
SHA1

fc5f72e653bcb507bbb0d8f95b14201930dc3eef
SHA256

fffa9ead850e0fcaf571a59b808bf2b2d25b465be4d7300b3f828c63ac779259
SHA512

29417107a44f9eef89d3ab35dd2ba52562f41651c04ebc2dd464a76b4a561fbf9aac5f8f35fb53b1f6d4ce8ea85cf66a038d530b6ca3e3368b8477a5da1f3c34
SSDEEP

49152:R1cDVEQUeU0PlCzs3nTGgVduWYwaIjctIPVWLp2y:weeUEbTGgOWY8j+z

Score

10^/10

zgrat persistence rat

Malware Config

Signatures

Detect ZGRat V1 34 IoCs

resource	yara_rule
behavioral2/memory/4716-8-0x0000000007750000-0x00000000077C8000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-14-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-22-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-20-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-44-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-66-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-72-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-70-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-68-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-64-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-62-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-60-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-58-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-56-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-54-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-52-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-50-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-48-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-46-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-42-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-40-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-38-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-36-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-34-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-32-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-30-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-28-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-26-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-24-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-18-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-16-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-12-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-10-0x0000000007750000-0x00000000077C1000-memory.dmp	family_zgrat_v1
behavioral2/memory/4716-9-0x0000000007750000-0x00000000077C1000-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-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Local\\JavaUpdate\\JavaUpdate.exe\","	2becacc54640ee85368060f50cdf970c.exe

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

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	2becacc54640ee85368060f50cdf970c.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\Control Panel\International\Geo\Nation	WScript.exe

Executes dropped EXE 1 IoCs

pid	Process
1396	RegAsm.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

pid	Process
1396	RegAsm.exe
1396	RegAsm.exe
1396	RegAsm.exe
1396	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4716 set thread context of 1396	4716	2becacc54640ee85368060f50cdf970c.exe	99

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000_Classes\Local Settings	2becacc54640ee85368060f50cdf970c.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
4716	2becacc54640ee85368060f50cdf970c.exe
4716	2becacc54640ee85368060f50cdf970c.exe
5016	powershell.exe
5016	powershell.exe
5016	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4716	2becacc54640ee85368060f50cdf970c.exe
Token: SeDebugPrivilege	5016	powershell.exe
Token: SeShutdownPrivilege	1396	RegAsm.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1396	RegAsm.exe
1396	RegAsm.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4716 wrote to memory of 3832	4716	2becacc54640ee85368060f50cdf970c.exe	98
PID 4716 wrote to memory of 3832	4716	2becacc54640ee85368060f50cdf970c.exe	98
PID 4716 wrote to memory of 3832	4716	2becacc54640ee85368060f50cdf970c.exe	98
PID 4716 wrote to memory of 1396	4716	2becacc54640ee85368060f50cdf970c.exe	99
PID 4716 wrote to memory of 1396	4716	2becacc54640ee85368060f50cdf970c.exe	99
PID 4716 wrote to memory of 1396	4716	2becacc54640ee85368060f50cdf970c.exe	99
PID 4716 wrote to memory of 1396	4716	2becacc54640ee85368060f50cdf970c.exe	99
PID 4716 wrote to memory of 1396	4716	2becacc54640ee85368060f50cdf970c.exe	99
PID 4716 wrote to memory of 1396	4716	2becacc54640ee85368060f50cdf970c.exe	99
PID 4716 wrote to memory of 1396	4716	2becacc54640ee85368060f50cdf970c.exe	99
PID 3832 wrote to memory of 5016	3832	WScript.exe	101
PID 3832 wrote to memory of 5016	3832	WScript.exe	101
PID 3832 wrote to memory of 5016	3832	WScript.exe	101

C:\Users\Admin\AppData\Local\Temp\2becacc54640ee85368060f50cdf970c.exe
"C:\Users\Admin\AppData\Local\Temp\2becacc54640ee85368060f50cdf970c.exe"
1⤵
- Modifies WinLogon for persistence
- Checks computer location settings
- Suspicious use of SetThreadContext
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4716
- C:\Windows\SysWOW64\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\_Enobllqetjhztazrykyqe.vbs"
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:3832
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Set-MpPreference -ExclusionPath C:\,'C:\Users\Admin\AppData\Local\JavaUpdate\JavaUpdate.exe'
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:5016
- C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
  C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1396

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1396-2469-0x0000000074C10000-0x0000000074C49000-memory.dmp

Filesize
228KB

Download
memory/1396-2477-0x0000000074FB0000-0x0000000074FE9000-memory.dmp

Filesize
228KB

Download
memory/1396-2480-0x0000000074FB0000-0x0000000074FE9000-memory.dmp

Filesize
228KB

Download
memory/1396-2483-0x0000000074FB0000-0x0000000074FE9000-memory.dmp

Filesize
228KB

Download
memory/1396-2494-0x0000000074FB0000-0x0000000074FE9000-memory.dmp

Filesize
228KB

Download
memory/1396-2503-0x0000000074FB0000-0x0000000074FE9000-memory.dmp

Filesize
228KB

Download
memory/1396-2500-0x0000000074FB0000-0x0000000074FE9000-memory.dmp

Filesize
228KB

Download
memory/1396-2497-0x0000000074FB0000-0x0000000074FE9000-memory.dmp

Filesize
228KB

Download
memory/4716-26-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-8-0x0000000007750000-0x00000000077C8000-memory.dmp

Filesize
480KB

Download
memory/4716-5-0x0000000005940000-0x000000000594A000-memory.dmp

Filesize
40KB

Download
memory/4716-6-0x0000000074DC0000-0x0000000075570000-memory.dmp

Filesize
7.7MB

Download
memory/4716-18-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-16-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-14-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-22-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-20-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-44-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-66-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-72-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-70-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-68-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-64-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-62-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-60-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-58-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-56-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-54-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-52-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-50-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-48-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-46-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-42-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-40-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-38-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-36-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-34-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-32-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-30-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-28-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-3-0x00000000059C0000-0x0000000005A52000-memory.dmp

Filesize
584KB

Download
memory/4716-24-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-12-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-4-0x0000000005C10000-0x0000000005C20000-memory.dmp

Filesize
64KB

Download
memory/4716-7-0x0000000006C90000-0x0000000006E40000-memory.dmp

Filesize
1.7MB

Download
memory/4716-10-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-9-0x0000000007750000-0x00000000077C1000-memory.dmp

Filesize
452KB

Download
memory/4716-1015-0x0000000005C10000-0x0000000005C20000-memory.dmp

Filesize
64KB

Download
memory/4716-2415-0x0000000074DC0000-0x0000000075570000-memory.dmp

Filesize
7.7MB

Download
memory/4716-0-0x0000000074DC0000-0x0000000075570000-memory.dmp

Filesize
7.7MB

Download
memory/4716-1-0x0000000000D90000-0x0000000000F50000-memory.dmp

Filesize
1.8MB

Download
memory/4716-2-0x0000000005F70000-0x0000000006514000-memory.dmp

Filesize
5.6MB

Download
memory/5016-2425-0x0000000004E70000-0x0000000004E92000-memory.dmp

Filesize
136KB

Download
memory/5016-2464-0x0000000007350000-0x0000000007358000-memory.dmp

Filesize
32KB

Download
memory/5016-2437-0x00000000058C0000-0x0000000005C14000-memory.dmp

Filesize
3.3MB

Download
memory/5016-2458-0x00000000070A0000-0x00000000070AA000-memory.dmp

Filesize
40KB

Download
memory/5016-2438-0x0000000005D00000-0x0000000005D1E000-memory.dmp

Filesize
120KB

Download
memory/5016-2439-0x0000000005DB0000-0x0000000005DFC000-memory.dmp

Filesize
304KB

Download
memory/5016-2422-0x0000000004930000-0x0000000004940000-memory.dmp

Filesize
64KB

Download
memory/5016-2421-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/5016-2452-0x0000000004930000-0x0000000004940000-memory.dmp

Filesize
64KB

Download
memory/5016-2455-0x0000000006F00000-0x0000000006FA3000-memory.dmp

Filesize
652KB

Download
memory/5016-2442-0x0000000070BC0000-0x0000000070C0C000-memory.dmp

Filesize
304KB

Download
memory/5016-2453-0x0000000004930000-0x0000000004940000-memory.dmp

Filesize
64KB

Download
memory/5016-2467-0x0000000074D80000-0x0000000075530000-memory.dmp

Filesize
7.7MB

Download
memory/5016-2457-0x0000000007030000-0x000000000704A000-memory.dmp

Filesize
104KB

Download
memory/5016-2460-0x0000000007230000-0x0000000007241000-memory.dmp

Filesize
68KB

Download
memory/5016-2454-0x0000000006ED0000-0x0000000006EEE000-memory.dmp

Filesize
120KB

Download
memory/5016-2459-0x00000000072B0000-0x0000000007346000-memory.dmp

Filesize
600KB

Download
memory/5016-2441-0x0000000006C90000-0x0000000006CC2000-memory.dmp

Filesize
200KB

Download
memory/5016-2427-0x0000000005680000-0x00000000056E6000-memory.dmp

Filesize
408KB

Download
memory/5016-2440-0x000000007F540000-0x000000007F550000-memory.dmp

Filesize
64KB

Download
memory/5016-2424-0x0000000004F70000-0x0000000005598000-memory.dmp

Filesize
6.2MB

Download
memory/5016-2423-0x0000000004930000-0x0000000004940000-memory.dmp

Filesize
64KB

Download
memory/5016-2420-0x0000000002400000-0x0000000002436000-memory.dmp

Filesize
216KB

Download
memory/5016-2461-0x0000000007260000-0x000000000726E000-memory.dmp

Filesize
56KB

Download
memory/5016-2462-0x0000000007270000-0x0000000007284000-memory.dmp

Filesize
80KB

Download
memory/5016-2426-0x0000000005610000-0x0000000005676000-memory.dmp

Filesize
408KB

Download
memory/5016-2463-0x0000000007370000-0x000000000738A000-memory.dmp

Filesize
104KB

Download
memory/5016-2456-0x0000000007670000-0x0000000007CEA000-memory.dmp

Filesize
6.5MB

Download