asyncrat | 142873db547e46701d0630bf254b6e4d7570a37e62194e89264b53410682d9a8

General

Target

SecuriteInfo.com.MSIL.Kryptik.HDZY.tr.31219.13466.exe
Size

469KB
MD5

3c69297a420b00c660113d44eb039254
SHA1

dc8212328e6dd88e713efb161ecaa3fe25d1eb0f
SHA256

142873db547e46701d0630bf254b6e4d7570a37e62194e89264b53410682d9a8
SHA512

70c3e84356bfc0798cb35b42907a64428d08b5816da7b30c7fe365f1c63f6312c68569b3b58e19f90539cc1bdb9a553346c92705ab0363c321b2ae16f3077e63
SSDEEP

12288:9JRUxMAcD2Im3x3I1luJwZrFhwJbAWqpI0:9JRUxjcD2Igh2lj20I0

Score

10^/10

asyncrat default discovery execution rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

185.106.92.86:4040

Mutex

xcjujxywyntbavbe

Attributes

delay
1
install
false
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

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
3024	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2668 set thread context of 2528	2668	SecuriteInfo.com.MSIL.Kryptik.HDZY.tr.31219.13466.exe	32

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SecuriteInfo.com.MSIL.Kryptik.HDZY.tr.31219.13466.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 30 IoCs

pid	Process
2668	SecuriteInfo.com.MSIL.Kryptik.HDZY.tr.31219.13466.exe
2668	SecuriteInfo.com.MSIL.Kryptik.HDZY.tr.31219.13466.exe
3024	powershell.exe
2528	RegSvcs.exe
2528	RegSvcs.exe
2528	RegSvcs.exe
2528	RegSvcs.exe
2528	RegSvcs.exe
2528	RegSvcs.exe
2528	RegSvcs.exe
2528	RegSvcs.exe
2528	RegSvcs.exe
2528	RegSvcs.exe
2528	RegSvcs.exe
2528	RegSvcs.exe
2528	RegSvcs.exe
2528	RegSvcs.exe
2528	RegSvcs.exe
2528	RegSvcs.exe
2528	RegSvcs.exe
2528	RegSvcs.exe
2528	RegSvcs.exe
2528	RegSvcs.exe
2528	RegSvcs.exe
2528	RegSvcs.exe
2528	RegSvcs.exe
2528	RegSvcs.exe
2528	RegSvcs.exe
2528	RegSvcs.exe
2528	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2668	SecuriteInfo.com.MSIL.Kryptik.HDZY.tr.31219.13466.exe
Token: SeDebugPrivilege	2528	RegSvcs.exe
Token: SeDebugPrivilege	3024	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2528	RegSvcs.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2668 wrote to memory of 3024	2668	SecuriteInfo.com.MSIL.Kryptik.HDZY.tr.31219.13466.exe	31
PID 2668 wrote to memory of 3024	2668	SecuriteInfo.com.MSIL.Kryptik.HDZY.tr.31219.13466.exe	31
PID 2668 wrote to memory of 3024	2668	SecuriteInfo.com.MSIL.Kryptik.HDZY.tr.31219.13466.exe	31
PID 2668 wrote to memory of 3024	2668	SecuriteInfo.com.MSIL.Kryptik.HDZY.tr.31219.13466.exe	31
PID 2668 wrote to memory of 2528	2668	SecuriteInfo.com.MSIL.Kryptik.HDZY.tr.31219.13466.exe	32
PID 2668 wrote to memory of 2528	2668	SecuriteInfo.com.MSIL.Kryptik.HDZY.tr.31219.13466.exe	32
PID 2668 wrote to memory of 2528	2668	SecuriteInfo.com.MSIL.Kryptik.HDZY.tr.31219.13466.exe	32
PID 2668 wrote to memory of 2528	2668	SecuriteInfo.com.MSIL.Kryptik.HDZY.tr.31219.13466.exe	32
PID 2668 wrote to memory of 2528	2668	SecuriteInfo.com.MSIL.Kryptik.HDZY.tr.31219.13466.exe	32
PID 2668 wrote to memory of 2528	2668	SecuriteInfo.com.MSIL.Kryptik.HDZY.tr.31219.13466.exe	32
PID 2668 wrote to memory of 2528	2668	SecuriteInfo.com.MSIL.Kryptik.HDZY.tr.31219.13466.exe	32
PID 2668 wrote to memory of 2528	2668	SecuriteInfo.com.MSIL.Kryptik.HDZY.tr.31219.13466.exe	32
PID 2668 wrote to memory of 2528	2668	SecuriteInfo.com.MSIL.Kryptik.HDZY.tr.31219.13466.exe	32
PID 2668 wrote to memory of 2528	2668	SecuriteInfo.com.MSIL.Kryptik.HDZY.tr.31219.13466.exe	32
PID 2668 wrote to memory of 2528	2668	SecuriteInfo.com.MSIL.Kryptik.HDZY.tr.31219.13466.exe	32
PID 2668 wrote to memory of 2528	2668	SecuriteInfo.com.MSIL.Kryptik.HDZY.tr.31219.13466.exe	32

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.MSIL.Kryptik.HDZY.tr.31219.13466.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.MSIL.Kryptik.HDZY.tr.31219.13466.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2668
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.MSIL.Kryptik.HDZY.tr.31219.13466.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3024
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2528

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

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\Cab7C34.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar8E6F.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
memory/2528-9-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2528-17-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2528-61-0x00000000746E0000-0x0000000074DCE000-memory.dmp

Filesize
6.9MB

Download
memory/2528-11-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2528-13-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2528-7-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2528-21-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2528-19-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/2528-22-0x00000000746E0000-0x0000000074DCE000-memory.dmp

Filesize
6.9MB

Download
memory/2528-15-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2668-3-0x00000000746EE000-0x00000000746EF000-memory.dmp

Filesize
4KB

Download
memory/2668-6-0x0000000005B40000-0x0000000005B9A000-memory.dmp

Filesize
360KB

Download
memory/2668-5-0x0000000000490000-0x00000000004A2000-memory.dmp

Filesize
72KB

Download
memory/2668-0-0x00000000746EE000-0x00000000746EF000-memory.dmp

Filesize
4KB

Download
memory/2668-24-0x00000000746E0000-0x0000000074DCE000-memory.dmp

Filesize
6.9MB

Download
memory/2668-2-0x00000000746E0000-0x0000000074DCE000-memory.dmp

Filesize
6.9MB

Download
memory/2668-1-0x0000000001020000-0x000000000109A000-memory.dmp

Filesize
488KB

Download
memory/2668-4-0x00000000746E0000-0x0000000074DCE000-memory.dmp

Filesize
6.9MB

Download

Analysis

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