zgrat | e4877fdceffd87cec166b266532a431e0d5e7644d950ce9566d2f14bc18be5e2 | Triage

Analysis

max time kernel
122s
max time network
123s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
13-05-2024 14:13

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General

Target

file.exe
Size

3.0MB
MD5

097a014e9066d6a4dd30e057e18eb511
SHA1

2baa37cdc9b69e4083fdf468240cbacb1f2851ae
SHA256

e4877fdceffd87cec166b266532a431e0d5e7644d950ce9566d2f14bc18be5e2
SHA512

3409f75f0d073146410ebf31f487626e0c5fc01abb962f56b673256e72981f3e4f5c063e6690feeff1b2937bd14b453c38823242c9dee9e607fe63888d9ad627
SSDEEP

49152:HzcK4Uk57r6mnw8fqFEIawGt2jlobG+FVSA7tffhpZ4F/3:HzvMWmnZSVawGtjHFVS8ffDZ4J

Score

10^/10

zgrat rat

Malware Config

Signatures

Detect ZGRat V1 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2072-1-0x0000000000D10000-0x0000000001012000-memory.dmp	family_zgrat_v1

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

.NET Reactor proctector 1 IoCs

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

Processes:

resource	yara_rule
behavioral1/memory/2072-1-0x0000000000D10000-0x0000000001012000-memory.dmp	net_reactor

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2696 2072 WerFault.exe file.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

file.exe

description	pid	process	target process
PID 2072 wrote to memory of 2696	2072	file.exe	WerFault.exe
PID 2072 wrote to memory of 2696	2072	file.exe	WerFault.exe
PID 2072 wrote to memory of 2696	2072	file.exe	WerFault.exe
PID 2072 wrote to memory of 2696	2072	file.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2072

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2072 -s 556
2⤵
- Program crash
PID:2696

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2072-0-0x00000000747CE000-0x00000000747CF000-memory.dmp

Filesize
4KB

Download
memory/2072-1-0x0000000000D10000-0x0000000001012000-memory.dmp

Filesize
3.0MB

Download
memory/2072-2-0x00000000747CE000-0x00000000747CF000-memory.dmp

Filesize
4KB

Download