zgrat | c4e838a74e5baf5dbd86beedff96c1c9353b49ecf2ad362f47a4b134453701ab

Analysis

max time kernel
147s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
03-04-2024 07:02

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General

Target

cp.exe
Size

115KB
MD5

adc187b1e5a6b66ca28fd3be5f6790cc
SHA1

ce467cb5d6275cd8289847c77ed9ebaee1c04a89
SHA256

c4e838a74e5baf5dbd86beedff96c1c9353b49ecf2ad362f47a4b134453701ab
SHA512

9f5d187c585a7344375ef5f239d4d10461c3fd5bf6b411e7e85edd8ead1f2994f41e4c62587425de480d05b7ddac7bd4cdd0754e382fcdfeac2f59c8c14105d9
SSDEEP

3072:93gZUdrIQe1ZuWX6gKINkdPbxLaOnwocubCIj57CI7:H+QyubhdEon57v

Score

10^/10

zgrat persistence rat

Malware Config

Signatures

Detect ZGRat V1 34 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2444-4-0x00000000072F0000-0x0000000007510000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-7-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-8-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-10-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-12-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-14-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-16-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-18-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-20-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-22-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-24-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-26-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-28-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-30-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-32-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-34-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-36-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-38-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-40-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-42-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-44-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-46-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-48-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-50-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-52-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-54-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-56-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-58-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-60-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-62-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-64-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-66-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-68-0x00000000072F0000-0x0000000007509000-memory.dmp	family_zgrat_v1
behavioral2/memory/2444-70-0x00000000072F0000-0x0000000007509000-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

Processes:

cp.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-609813121-2907144057-1731107329-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\vuupdate = "C:\\Users\\Admin\\AppData\\Local\\Temp\\vuupdate.exe"	cp.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

cp.exe

description pid process target process

PID 2444 set thread context of 760 2444 cp.exe InstallUtil.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

cp.exeInstallUtil.exe

description pid process

Token: SeDebugPrivilege 2444 cp.exe
Token: SeDebugPrivilege 2444 cp.exe
Token: SeDebugPrivilege 760 InstallUtil.exe

description	pid	process	target process
PID 2444 set thread context of 760	2444	cp.exe	InstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	2444	cp.exe
Token: SeDebugPrivilege	2444	cp.exe
Token: SeDebugPrivilege	760	InstallUtil.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

cp.exe

description	pid	process	target process
PID 2444 wrote to memory of 760	2444	cp.exe	InstallUtil.exe
PID 2444 wrote to memory of 760	2444	cp.exe	InstallUtil.exe
PID 2444 wrote to memory of 760	2444	cp.exe	InstallUtil.exe
PID 2444 wrote to memory of 760	2444	cp.exe	InstallUtil.exe
PID 2444 wrote to memory of 760	2444	cp.exe	InstallUtil.exe
PID 2444 wrote to memory of 760	2444	cp.exe	InstallUtil.exe
PID 2444 wrote to memory of 760	2444	cp.exe	InstallUtil.exe
PID 2444 wrote to memory of 760	2444	cp.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\cp.exe
"C:\Users\Admin\AppData\Local\Temp\cp.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2444

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:760

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

memory/760-4897-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/760-4899-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/760-4901-0x0000000003180000-0x0000000003190000-memory.dmp

Filesize
64KB

Download
memory/760-4926-0x0000000007490000-0x000000000749A000-memory.dmp

Filesize
40KB

Download
memory/760-4927-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/760-4928-0x0000000003180000-0x0000000003190000-memory.dmp

Filesize
64KB

Download
memory/2444-34-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-40-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-3-0x00000000055C0000-0x00000000055C8000-memory.dmp

Filesize
32KB

Download
memory/2444-4-0x00000000072F0000-0x0000000007510000-memory.dmp

Filesize
2.1MB

Download
memory/2444-5-0x0000000007AC0000-0x0000000008064000-memory.dmp

Filesize
5.6MB

Download
memory/2444-6-0x00000000075F0000-0x0000000007682000-memory.dmp

Filesize
584KB

Download
memory/2444-7-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-8-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-10-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-12-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-14-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-16-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-18-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-20-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-22-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-24-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-26-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-28-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-30-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-32-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-1-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/2444-36-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-38-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-2-0x00000000057B0000-0x00000000057C0000-memory.dmp

Filesize
64KB

Download
memory/2444-42-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-44-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-46-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-48-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-50-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-52-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-54-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-56-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-58-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-60-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-62-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-64-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-66-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-68-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-70-0x00000000072F0000-0x0000000007509000-memory.dmp

Filesize
2.1MB

Download
memory/2444-2031-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download
memory/2444-2292-0x00000000057B0000-0x00000000057C0000-memory.dmp

Filesize
64KB

Download
memory/2444-4889-0x0000000002F40000-0x0000000002F41000-memory.dmp

Filesize
4KB

Download
memory/2444-0-0x0000000000CB0000-0x0000000000CCE000-memory.dmp

Filesize
120KB

Download
memory/2444-4890-0x0000000007690000-0x00000000076EC000-memory.dmp

Filesize
368KB

Download
memory/2444-4891-0x0000000007710000-0x000000000775C000-memory.dmp

Filesize
304KB

Download
memory/2444-4892-0x0000000077C21000-0x0000000077D41000-memory.dmp

Filesize
1.1MB

Download
memory/2444-4893-0x00000000011D0000-0x0000000001224000-memory.dmp

Filesize
336KB

Download
memory/2444-4898-0x0000000075180000-0x0000000075930000-memory.dmp

Filesize
7.7MB

Download