zgrat | 4c1fcffd0d8ecce841bde1961d6ac50e9e68b18eaf09be257a2ef150c3562030

General

Target

PO_23456765434567654VX.exe
Size

840KB
MD5

ece384609530cfe4879ef647cf5f80f7
SHA1

9c1eaef97e84e8243671151eb8be4651f8fb0931
SHA256

dd9578bf2f168472dc3da2f580a6384f997fe01149e94ca7e7b31448ddac60bc
SHA512

c6aa6c3095b703747469003540c47453380de92ee926a8b5d4e20011e7db20b09a16d36117c4ecc78a9b30b65020341ae26fe27e30bab9301273e13ad3d37a7e
SSDEEP

12288:OR51q/+yZJ+IGXqXZOqgLhJ9aEODyc5zLlwhc2cVurA0ZX4Pc8NHrL:w1q8IGfqgAEO9lLlUcVj0R38NHrL

Score

10^/10

zgrat collection execution rat spyware stealer

Malware Config

Signatures

Detect ZGRat V1 6 IoCs

resource	yara_rule
behavioral1/memory/2172-5-0x0000000002160000-0x00000000021D8000-memory.dmp	family_zgrat_v1
behavioral1/memory/2648-18-0x0000000000400000-0x000000000047C000-memory.dmp	family_zgrat_v1
behavioral1/memory/2648-13-0x0000000000400000-0x000000000047C000-memory.dmp	family_zgrat_v1
behavioral1/memory/2648-16-0x0000000000400000-0x000000000047C000-memory.dmp	family_zgrat_v1
behavioral1/memory/2648-20-0x0000000000400000-0x000000000047C000-memory.dmp	family_zgrat_v1
behavioral1/memory/2648-11-0x0000000000400000-0x000000000047C000-memory.dmp	family_zgrat_v1

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

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2644	Powershell.exe

Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
spyware stealer

Data from Local System
T1005

Credentials in Registry
T1552.002
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_23456765434567654VX.exe
Key opened	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_23456765434567654VX.exe
Key opened	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_23456765434567654VX.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2172 set thread context of 2648	2172	PO_23456765434567654VX.exe	29

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2172	PO_23456765434567654VX.exe
2172	PO_23456765434567654VX.exe
2172	PO_23456765434567654VX.exe
2644	Powershell.exe
2648	PO_23456765434567654VX.exe
2648	PO_23456765434567654VX.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2172	PO_23456765434567654VX.exe
Token: SeDebugPrivilege	2644	Powershell.exe
Token: SeDebugPrivilege	2648	PO_23456765434567654VX.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2172 wrote to memory of 2876	2172	PO_23456765434567654VX.exe	28
PID 2172 wrote to memory of 2876	2172	PO_23456765434567654VX.exe	28
PID 2172 wrote to memory of 2876	2172	PO_23456765434567654VX.exe	28
PID 2172 wrote to memory of 2876	2172	PO_23456765434567654VX.exe	28
PID 2172 wrote to memory of 2648	2172	PO_23456765434567654VX.exe	29
PID 2172 wrote to memory of 2648	2172	PO_23456765434567654VX.exe	29
PID 2172 wrote to memory of 2648	2172	PO_23456765434567654VX.exe	29
PID 2172 wrote to memory of 2648	2172	PO_23456765434567654VX.exe	29
PID 2172 wrote to memory of 2648	2172	PO_23456765434567654VX.exe	29
PID 2172 wrote to memory of 2648	2172	PO_23456765434567654VX.exe	29
PID 2172 wrote to memory of 2648	2172	PO_23456765434567654VX.exe	29
PID 2172 wrote to memory of 2648	2172	PO_23456765434567654VX.exe	29
PID 2172 wrote to memory of 2648	2172	PO_23456765434567654VX.exe	29
PID 2172 wrote to memory of 2644	2172	PO_23456765434567654VX.exe	30
PID 2172 wrote to memory of 2644	2172	PO_23456765434567654VX.exe	30
PID 2172 wrote to memory of 2644	2172	PO_23456765434567654VX.exe	30
PID 2172 wrote to memory of 2644	2172	PO_23456765434567654VX.exe	30

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_23456765434567654VX.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	PO_23456765434567654VX.exe

C:\Users\Admin\AppData\Local\Temp\PO_23456765434567654VX.exe
"C:\Users\Admin\AppData\Local\Temp\PO_23456765434567654VX.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2172
- C:\Users\Admin\AppData\Local\Temp\PO_23456765434567654VX.exe
  "C:\Users\Admin\AppData\Local\Temp\PO_23456765434567654VX.exe"
  2⤵
  PID:2876
- C:\Users\Admin\AppData\Local\Temp\PO_23456765434567654VX.exe
  "C:\Users\Admin\AppData\Local\Temp\PO_23456765434567654VX.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:2648
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
  "Powershell" Add-MpPreference -ExclusionPath '"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\VideoLAN\vlc.exe"'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2644

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

4

T1552

Credentials In Files

3

T1552.001

Credentials in Registry

1

T1552.002

Discovery

Lateral Movement

Collection

Data from Local System

Email Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2172-0-0x000000007406E000-0x000000007406F000-memory.dmp

Filesize
4KB

Download
memory/2172-1-0x0000000000840000-0x0000000000918000-memory.dmp

Filesize
864KB

Download
memory/2172-2-0x0000000074060000-0x000000007474E000-memory.dmp

Filesize
6.9MB

Download
memory/2172-3-0x000000007406E000-0x000000007406F000-memory.dmp

Filesize
4KB

Download
memory/2172-4-0x0000000074060000-0x000000007474E000-memory.dmp

Filesize
6.9MB

Download
memory/2172-5-0x0000000002160000-0x00000000021D8000-memory.dmp

Filesize
480KB

Download
memory/2172-24-0x0000000074060000-0x000000007474E000-memory.dmp

Filesize
6.9MB

Download
memory/2648-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2648-18-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/2648-13-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/2648-16-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/2648-20-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/2648-11-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/2648-8-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/2648-22-0x0000000074060000-0x000000007474E000-memory.dmp

Filesize
6.9MB

Download
memory/2648-23-0x0000000074060000-0x000000007474E000-memory.dmp

Filesize
6.9MB

Download
memory/2648-6-0x0000000000400000-0x000000000047C000-memory.dmp

Filesize
496KB

Download
memory/2648-27-0x0000000074060000-0x000000007474E000-memory.dmp

Filesize
6.9MB

Download

Analysis

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