zgrat | 71c81318d16023aba7c537168d68b7d87eeeb085725d0904c3ea7298fc43d7e8

Analysis

max time kernel
146s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
12-02-2024 14:22

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General

Target

975d87e24e881a6d224d37b25a7c8a1d.exe
Size

1.7MB
MD5

975d87e24e881a6d224d37b25a7c8a1d
SHA1

836373fee93d77cf54eddc8c58a5b5fc2a6d259e
SHA256

71c81318d16023aba7c537168d68b7d87eeeb085725d0904c3ea7298fc43d7e8
SHA512

023291428628e04c9384b12ca4b2bc814b8bf81c713e00577eec17679d6b5de3f017838ff2b16f258553600678eec83f5f4972e8f9d9ab24eb7e969d26abfb35
SSDEEP

49152:+kI4ZpVNoNhRfKW7dAF1EnB0TSgCYp5HwG+uTiVkD+bV:+YZpVidZC/aB6ZpGXWD+bV

Score

10^/10

zgrat rat

Malware Config

Signatures

Detect ZGRat V1 34 IoCs

Processes:

resource	yara_rule
behavioral2/memory/976-10-0x0000000007370000-0x00000000073E4000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-12-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-13-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-15-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-17-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-19-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-21-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-23-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-25-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-27-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-29-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-31-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-33-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-35-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-37-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-39-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-41-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-43-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-45-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-47-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-49-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-51-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-59-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-65-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-63-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-67-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-69-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-61-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-57-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-73-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-75-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-71-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-55-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1
behavioral2/memory/976-53-0x0000000007370000-0x00000000073DF000-memory.dmp	family_zgrat_v1

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

Processes:

975d87e24e881a6d224d37b25a7c8a1d.exeWScript.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	975d87e24e881a6d224d37b25a7c8a1d.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	WScript.exe

Executes dropped EXE 1 IoCs

Processes:

RegAsm.exe

pid process

2444 RegAsm.exe
Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

Processes:

RegAsm.exe

pid process

2444 RegAsm.exe
2444 RegAsm.exe
2444 RegAsm.exe
2444 RegAsm.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

975d87e24e881a6d224d37b25a7c8a1d.exe

description pid process target process

PID 976 set thread context of 2444 976 975d87e24e881a6d224d37b25a7c8a1d.exe RegAsm.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2444	RegAsm.exe

pid	process
2444	RegAsm.exe
2444	RegAsm.exe
2444	RegAsm.exe
2444	RegAsm.exe

description	pid	process	target process
PID 976 set thread context of 2444	976	975d87e24e881a6d224d37b25a7c8a1d.exe	RegAsm.exe

Modifies registry class 1 IoCs

Processes:

975d87e24e881a6d224d37b25a7c8a1d.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000_Classes\Local Settings	975d87e24e881a6d224d37b25a7c8a1d.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

975d87e24e881a6d224d37b25a7c8a1d.exepowershell.exe

pid process

976 975d87e24e881a6d224d37b25a7c8a1d.exe
976 975d87e24e881a6d224d37b25a7c8a1d.exe
3384 powershell.exe
3384 powershell.exe

pid	process
976	975d87e24e881a6d224d37b25a7c8a1d.exe
976	975d87e24e881a6d224d37b25a7c8a1d.exe
3384	powershell.exe
3384	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

975d87e24e881a6d224d37b25a7c8a1d.exepowershell.exeRegAsm.exe

description	pid	process
Token: SeDebugPrivilege	976	975d87e24e881a6d224d37b25a7c8a1d.exe
Token: SeDebugPrivilege	3384	powershell.exe
Token: SeShutdownPrivilege	2444	RegAsm.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

RegAsm.exe

pid process

2444 RegAsm.exe
2444 RegAsm.exe

pid	process
2444	RegAsm.exe
2444	RegAsm.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

975d87e24e881a6d224d37b25a7c8a1d.exeWScript.exe

description	pid	process	target process
PID 976 wrote to memory of 4720	976	975d87e24e881a6d224d37b25a7c8a1d.exe	WScript.exe
PID 976 wrote to memory of 4720	976	975d87e24e881a6d224d37b25a7c8a1d.exe	WScript.exe
PID 976 wrote to memory of 4720	976	975d87e24e881a6d224d37b25a7c8a1d.exe	WScript.exe
PID 976 wrote to memory of 2444	976	975d87e24e881a6d224d37b25a7c8a1d.exe	RegAsm.exe
PID 976 wrote to memory of 2444	976	975d87e24e881a6d224d37b25a7c8a1d.exe	RegAsm.exe
PID 976 wrote to memory of 2444	976	975d87e24e881a6d224d37b25a7c8a1d.exe	RegAsm.exe
PID 976 wrote to memory of 2444	976	975d87e24e881a6d224d37b25a7c8a1d.exe	RegAsm.exe
PID 976 wrote to memory of 2444	976	975d87e24e881a6d224d37b25a7c8a1d.exe	RegAsm.exe
PID 976 wrote to memory of 2444	976	975d87e24e881a6d224d37b25a7c8a1d.exe	RegAsm.exe
PID 4720 wrote to memory of 3384	4720	WScript.exe	powershell.exe
PID 4720 wrote to memory of 3384	4720	WScript.exe	powershell.exe
PID 4720 wrote to memory of 3384	4720	WScript.exe	powershell.exe
PID 976 wrote to memory of 2444	976	975d87e24e881a6d224d37b25a7c8a1d.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\975d87e24e881a6d224d37b25a7c8a1d.exe
"C:\Users\Admin\AppData\Local\Temp\975d87e24e881a6d224d37b25a7c8a1d.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:976

C:\Windows\SysWOW64\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\_Npkbzalbimnyc.vbs"
2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4720

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\Microsoft\Windows\Start Menu\Programs\outlook.exe'
3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3384

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:2444

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
Filesize
63KB

MD5
0d5df43af2916f47d00c1573797c1a13

SHA1
230ab5559e806574d26b4c20847c368ed55483b0

SHA256
c066aee7aa3aa83f763ebc5541daa266ed6c648fbffcde0d836a13b221bb2adc

SHA512
f96cf9e1890746b12daf839a6d0f16f062b72c1b8a40439f96583f242980f10f867720232a6fa0f7d4d7ac0a7a6143981a5a130d6417ea98b181447134c7cfe2

Download Submit
C:\Users\Admin\AppData\Local\Temp\_Npkbzalbimnyc.vbs
Filesize
175B

MD5
fe201b96b30ce7b044530dfc5659deac

SHA1
91886ecd3513af12147c4039f5f7c89a0a77fda7

SHA256
085219c444380891f8e66c4a7177cf148fb8309efcc353f61d8a590b9d06ac79

SHA512
1c2babdf1983450721f38fb5ae9b1544fa2a8060b2b6d367c86781faab8ef0777e9875470fca23e31cda983ed801e54dc2ce3d637a04c1f577f342439f7437ae

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hpirervr.gxo.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/976-73-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-55-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-5-0x0000000005050000-0x000000000505A000-memory.dmp

Filesize
40KB

Download
memory/976-6-0x0000000004F60000-0x0000000004F70000-memory.dmp

Filesize
64KB

Download
memory/976-7-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/976-8-0x0000000004F60000-0x0000000004F70000-memory.dmp

Filesize
64KB

Download
memory/976-9-0x00000000069E0000-0x0000000006B8E000-memory.dmp

Filesize
1.7MB

Download
memory/976-10-0x0000000007370000-0x00000000073E4000-memory.dmp

Filesize
464KB

Download
memory/976-11-0x0000000004F60000-0x0000000004F70000-memory.dmp

Filesize
64KB

Download
memory/976-12-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-13-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-15-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-17-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-19-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-21-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-23-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-25-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-27-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-29-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-31-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-33-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-35-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-37-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-39-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-41-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-1-0x00000000003D0000-0x0000000000592000-memory.dmp

Filesize
1.8MB

Download
memory/976-45-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-47-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-49-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-51-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-59-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-65-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-63-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-67-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-69-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-61-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-57-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-0-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/976-4-0x0000000004F60000-0x0000000004F70000-memory.dmp

Filesize
64KB

Download
memory/976-71-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-43-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-53-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-3-0x0000000004F80000-0x0000000005012000-memory.dmp

Filesize
584KB

Download
memory/976-2-0x0000000005450000-0x00000000059F4000-memory.dmp

Filesize
5.6MB

Download
memory/976-75-0x0000000007370000-0x00000000073DF000-memory.dmp

Filesize
444KB

Download
memory/976-2326-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/2444-2392-0x00000000756C0000-0x00000000756F9000-memory.dmp

Filesize
228KB

Download
memory/2444-2360-0x0000000070560000-0x0000000070599000-memory.dmp

Filesize
228KB

Download
memory/2444-2350-0x0000000070910000-0x0000000070949000-memory.dmp

Filesize
228KB

Download
memory/3384-2385-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/3384-2337-0x0000000005E10000-0x0000000005E76000-memory.dmp

Filesize
408KB

Download
memory/3384-2338-0x0000000005F80000-0x0000000005FE6000-memory.dmp

Filesize
408KB

Download
memory/3384-2336-0x0000000005620000-0x0000000005642000-memory.dmp

Filesize
136KB

Download
memory/3384-2344-0x0000000005FF0000-0x0000000006344000-memory.dmp

Filesize
3.3MB

Download
memory/3384-2335-0x0000000005730000-0x0000000005D58000-memory.dmp

Filesize
6.2MB

Download
memory/3384-2351-0x00000000065F0000-0x000000000660E000-memory.dmp

Filesize
120KB

Download
memory/3384-2352-0x0000000006620000-0x000000000666C000-memory.dmp

Filesize
304KB

Download
memory/3384-2332-0x0000000002D50000-0x0000000002D60000-memory.dmp

Filesize
64KB

Download
memory/3384-2361-0x0000000002D50000-0x0000000002D60000-memory.dmp

Filesize
64KB

Download
memory/3384-2362-0x000000007EE10000-0x000000007EE20000-memory.dmp

Filesize
64KB

Download
memory/3384-2363-0x0000000006BB0000-0x0000000006BE2000-memory.dmp

Filesize
200KB

Download
memory/3384-2364-0x0000000070910000-0x000000007095C000-memory.dmp

Filesize
304KB

Download
memory/3384-2374-0x0000000006B90000-0x0000000006BAE000-memory.dmp

Filesize
120KB

Download
memory/3384-2375-0x00000000077F0000-0x0000000007893000-memory.dmp

Filesize
652KB

Download
memory/3384-2376-0x0000000007F60000-0x00000000085DA000-memory.dmp

Filesize
6.5MB

Download
memory/3384-2330-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/3384-2378-0x0000000007980000-0x000000000798A000-memory.dmp

Filesize
40KB

Download
memory/3384-2379-0x0000000007B90000-0x0000000007C26000-memory.dmp

Filesize
600KB

Download
memory/3384-2380-0x0000000007B10000-0x0000000007B21000-memory.dmp

Filesize
68KB

Download
memory/3384-2381-0x0000000007B40000-0x0000000007B4E000-memory.dmp

Filesize
56KB

Download
memory/3384-2382-0x0000000007B50000-0x0000000007B64000-memory.dmp

Filesize
80KB

Download
memory/3384-2383-0x0000000007C50000-0x0000000007C6A000-memory.dmp

Filesize
104KB

Download
memory/3384-2384-0x0000000007C30000-0x0000000007C38000-memory.dmp

Filesize
32KB

Download
memory/3384-2328-0x0000000002CE0000-0x0000000002D16000-memory.dmp

Filesize
216KB

Download
memory/3384-2386-0x0000000002D50000-0x0000000002D60000-memory.dmp

Filesize
64KB

Download
memory/3384-2389-0x0000000074EA0000-0x0000000075650000-memory.dmp

Filesize
7.7MB

Download
memory/3384-2377-0x0000000007910000-0x000000000792A000-memory.dmp

Filesize
104KB

Download