zgrat | 86f8e546815bd0b77b0fcc906b700caa5baed1568197378a20fa6b581a2ab709

Analysis

max time kernel
121s
max time network
125s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
22/11/2023, 05:59

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General

Target

a19ca4c84df9e57d2c8f5543c4db9d52.exe
Size

322KB
MD5

a19ca4c84df9e57d2c8f5543c4db9d52
SHA1

e3566ba1659d1a7f554dd85de286ac0bdf71ae4a
SHA256

86f8e546815bd0b77b0fcc906b700caa5baed1568197378a20fa6b581a2ab709
SHA512

4b13791602ef97be25f2c0ab7c40478f2d792a0b189f10cc1da71a0d54a4a2ad0c8bb543d2b5b96015a83a37858bfa4207b636c82db8d2bc18ec44a70d1904f9
SSDEEP

6144:21pgEgRUcmvB2ePvoAVvHoKjBZZd036CS3Q:2EWxgAVvLBfds6CR

Score

10^/10

zgrat persistence rat

Malware Config

Signatures

Detect ZGRat V1 1 IoCs

resource	yara_rule
behavioral1/memory/1864-0-0x0000000000A60000-0x0000000000AB6000-memory.dmp	family_zgrat_v1

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

.NET Reactor proctector 2 IoCs

Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

resource	yara_rule
behavioral1/memory/1864-0-0x0000000000A60000-0x0000000000AB6000-memory.dmp	net_reactor
behavioral1/memory/1864-2-0x0000000004CA0000-0x0000000004CE0000-memory.dmp	net_reactor

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-1-5-21-1154728922-3261336865-3456416385-1000\Software\Microsoft\Windows\CurrentVersion\Run\BlockHost.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a19ca4c84df9e57d2c8f5543c4db9d52.exe"	a19ca4c84df9e57d2c8f5543c4db9d52.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2704	1864	WerFault.exe	27

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2764	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1864	a19ca4c84df9e57d2c8f5543c4db9d52.exe
Token: SeDebugPrivilege	2764	powershell.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1864 wrote to memory of 2764	1864	a19ca4c84df9e57d2c8f5543c4db9d52.exe	28
PID 1864 wrote to memory of 2764	1864	a19ca4c84df9e57d2c8f5543c4db9d52.exe	28
PID 1864 wrote to memory of 2764	1864	a19ca4c84df9e57d2c8f5543c4db9d52.exe	28
PID 1864 wrote to memory of 2764	1864	a19ca4c84df9e57d2c8f5543c4db9d52.exe	28
PID 1864 wrote to memory of 2704	1864	a19ca4c84df9e57d2c8f5543c4db9d52.exe	30
PID 1864 wrote to memory of 2704	1864	a19ca4c84df9e57d2c8f5543c4db9d52.exe	30
PID 1864 wrote to memory of 2704	1864	a19ca4c84df9e57d2c8f5543c4db9d52.exe	30
PID 1864 wrote to memory of 2704	1864	a19ca4c84df9e57d2c8f5543c4db9d52.exe	30

C:\Users\Admin\AppData\Local\Temp\a19ca4c84df9e57d2c8f5543c4db9d52.exe
"C:\Users\Admin\AppData\Local\Temp\a19ca4c84df9e57d2c8f5543c4db9d52.exe"
1⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1864
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "powershell" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2764
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1864 -s 1036
  2⤵
  - Program crash
  PID:2704

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/1864-0-0x0000000000A60000-0x0000000000AB6000-memory.dmp

Filesize
344KB

Download
memory/1864-1-0x0000000074600000-0x0000000074CEE000-memory.dmp

Filesize
6.9MB

Download
memory/1864-2-0x0000000004CA0000-0x0000000004CE0000-memory.dmp

Filesize
256KB

Download
memory/1864-16-0x0000000074600000-0x0000000074CEE000-memory.dmp

Filesize
6.9MB

Download
memory/1864-17-0x0000000004CA0000-0x0000000004CE0000-memory.dmp

Filesize
256KB

Download
memory/2764-5-0x0000000070280000-0x000000007082B000-memory.dmp

Filesize
5.7MB

Download
memory/2764-6-0x0000000070280000-0x000000007082B000-memory.dmp

Filesize
5.7MB

Download
memory/2764-7-0x00000000028D0000-0x0000000002910000-memory.dmp

Filesize
256KB

Download
memory/2764-8-0x00000000028D0000-0x0000000002910000-memory.dmp

Filesize
256KB

Download
memory/2764-9-0x00000000028D0000-0x0000000002910000-memory.dmp

Filesize
256KB

Download
memory/2764-10-0x0000000070280000-0x000000007082B000-memory.dmp

Filesize
5.7MB

Download