zgrat | 50e845d9eb8b8a08f77da69556c94958265cb875129a41177c60094b71434e9a

Analysis

max time kernel
123s
max time network
125s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
15-05-2024 14:38

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General

Target

RFQ10675000162.exe
Size

4.6MB
MD5

bdac6ecf5c7f3ae57414eb01e643f96b
SHA1

a931d7d7b4471c39e37c14369373aa0bc4d5ad2e
SHA256

50e845d9eb8b8a08f77da69556c94958265cb875129a41177c60094b71434e9a
SHA512

9a021ae8bf9bb33a7055224bc50a7206bc16fc2358299b52b31837c106195eec4c1695260307a7a95c919d3fd9cb21c28112ed3c9f9c51490191ee0b4159a27e
SSDEEP

24576:0s99lUjIm5M193TxVmMJIquuX/GQl04NCYIHesng/pMqRG+5LF2DfE8z4jJsP+i4:b

Score

10^/10

zgrat persistence rat

Malware Config

Signatures

Detect ZGRat V1 34 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4416-2-0x0000000006470000-0x00000000066A0000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-16-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-10-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-8-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-20-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-52-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-36-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-68-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-66-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-64-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-62-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-60-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-58-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-56-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-55-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-50-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-48-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-46-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-44-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-42-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-40-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-38-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-32-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-34-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-30-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-28-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-26-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-24-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-22-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-18-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-14-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-12-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-6-0x0000000006470000-0x000000000669A000-memory.dmp	family_zgrat_v1
behavioral2/memory/4416-5-0x0000000006470000-0x000000000669A000-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:

RFQ10675000162.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\oouvef = "C:\\Users\\Admin\\AppData\\Roaming\\oouvef.exe"	RFQ10675000162.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

RFQ10675000162.exe

description pid process target process

PID 4416 set thread context of 452 4416 RFQ10675000162.exe RegAsm.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

4184 452 WerFault.exe RegAsm.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

RFQ10675000162.exe

description pid process

Token: SeDebugPrivilege 4416 RFQ10675000162.exe
Token: SeDebugPrivilege 4416 RFQ10675000162.exe
Suspicious use of UnmapMainImage 1 IoCs

Processes:

RegAsm.exe

pid process

452 RegAsm.exe

description	pid	process	target process
PID 4416 set thread context of 452	4416	RFQ10675000162.exe	RegAsm.exe

pid	pid_target	process	target process
4184	452	WerFault.exe	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	4416	RFQ10675000162.exe
Token: SeDebugPrivilege	4416	RFQ10675000162.exe

pid	process
452	RegAsm.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

RFQ10675000162.exe

description	pid	process	target process
PID 4416 wrote to memory of 452	4416	RFQ10675000162.exe	RegAsm.exe
PID 4416 wrote to memory of 452	4416	RFQ10675000162.exe	RegAsm.exe
PID 4416 wrote to memory of 452	4416	RFQ10675000162.exe	RegAsm.exe
PID 4416 wrote to memory of 452	4416	RFQ10675000162.exe	RegAsm.exe
PID 4416 wrote to memory of 452	4416	RFQ10675000162.exe	RegAsm.exe
PID 4416 wrote to memory of 452	4416	RFQ10675000162.exe	RegAsm.exe
PID 4416 wrote to memory of 452	4416	RFQ10675000162.exe	RegAsm.exe
PID 4416 wrote to memory of 452	4416	RFQ10675000162.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\RFQ10675000162.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ10675000162.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4416
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Suspicious use of UnmapMainImage
  PID:452
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 452 -s 12
    3⤵
    - Program crash
    PID:4184

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 452 -ip 452
1⤵
PID:4340

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/4416-0-0x00000000743DE000-0x00000000743DF000-memory.dmp

Filesize
4KB

Download
memory/4416-1-0x00000000002A0000-0x0000000000744000-memory.dmp

Filesize
4.6MB

Download
memory/4416-2-0x0000000006470000-0x00000000066A0000-memory.dmp

Filesize
2.2MB

Download
memory/4416-3-0x0000000006C50000-0x00000000071F4000-memory.dmp

Filesize
5.6MB

Download
memory/4416-4-0x00000000066A0000-0x0000000006732000-memory.dmp

Filesize
584KB

Download
memory/4416-16-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-10-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-8-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-20-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-52-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-36-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-68-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-66-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-64-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-62-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-60-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-58-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-56-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-55-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-50-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-48-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-46-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-44-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-42-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-40-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-38-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-32-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-34-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-30-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-28-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-26-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-24-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-22-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-18-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-14-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-12-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-6-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-5-0x0000000006470000-0x000000000669A000-memory.dmp

Filesize
2.2MB

Download
memory/4416-4885-0x00000000743D0000-0x0000000074B80000-memory.dmp

Filesize
7.7MB

Download
memory/4416-4886-0x00000000743D0000-0x0000000074B80000-memory.dmp

Filesize
7.7MB

Download
memory/4416-4888-0x00000000067B0000-0x00000000067FC000-memory.dmp

Filesize
304KB

Download
memory/4416-4887-0x0000000006740000-0x00000000067AC000-memory.dmp

Filesize
432KB

Download
memory/4416-4889-0x0000000006930000-0x0000000006984000-memory.dmp

Filesize
336KB

Download
memory/4416-4893-0x00000000743D0000-0x0000000074B80000-memory.dmp

Filesize
7.7MB

Download