asyncrat | adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe

General

Target

adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe.exe
Size

412KB
MD5

0731d232d0af12a5320238914de6bf4a
SHA1

41b1d57292fa942352373e587a638011893649ab
SHA256

adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe
SHA512

a1af80997ce12df93cd17be40f78cfaced5fda36e1a601819e7e0790fa1efba13c2f818d45f83290707e3ac8e1fc54fea7f2d6a17640e83da5ba816ee629a436
SSDEEP

6144:y+YH9d/Ucs7XgCbXTFm2HTMFyowl07iLC0Ga2wdyRwIfjc6YRjd66Al:y5HUcaX5Lxm2atlf0Ga2NRwI7YJbAl

Score

10^/10

asyncrat exe jdidd discovery evasion execution rat trojan

Malware Config

Extracted

Family

asyncrat

Version

AWS | RxR

Botnet

EXE JDIDD

C2

5sdf23d2sdf.ddnss.eu:6606

5sdf23d2sdf.ddnss.eu:7707

5sdf23d2sdf.ddnss.eu:8808

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
false
install_folder
%AppData%

aes.plain

Signatures

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

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe.exe

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
2984	powershell.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe.exe
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2368 set thread context of 1884	2368	adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe.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 1 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	AddInProcess32.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2984	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2984	powershell.exe
Token: SeDebugPrivilege	1884	AddInProcess32.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 2984	2368	adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe.exe	30
PID 2368 wrote to memory of 2984	2368	adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe.exe	30
PID 2368 wrote to memory of 2984	2368	adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe.exe	30
PID 2368 wrote to memory of 1884	2368	adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe.exe	32
PID 2368 wrote to memory of 1884	2368	adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe.exe	32
PID 2368 wrote to memory of 1884	2368	adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe.exe	32
PID 2368 wrote to memory of 1884	2368	adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe.exe	32
PID 2368 wrote to memory of 1884	2368	adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe.exe	32
PID 2368 wrote to memory of 1884	2368	adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe.exe	32
PID 2368 wrote to memory of 1884	2368	adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe.exe	32
PID 2368 wrote to memory of 1884	2368	adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe.exe	32
PID 2368 wrote to memory of 1884	2368	adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe.exe	32
PID 2368 wrote to memory of 2648	2368	adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe.exe	33
PID 2368 wrote to memory of 2648	2368	adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe.exe	33
PID 2368 wrote to memory of 2648	2368	adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe.exe	33

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe.exe

C:\Users\Admin\AppData\Local\Temp\adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe.exe
"C:\Users\Admin\AppData\Local\Temp\adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe.exe"
1⤵
- UAC bypass
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2368
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe.exe" -Force
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2984
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1884
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2368 -s 812
  2⤵
  PID:2648

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

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Defense Evasion

Abuse Elevation Control Mechanism

1

T1548

Bypass User Account Control

1

T1548.002

Impair Defenses

1

T1562

Disable or Modify Tools

Modify Registry

Credential Access

Discovery

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\CabCA72.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/1884-11-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1884-20-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1884-21-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1884-22-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1884-17-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1884-15-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1884-13-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/1884-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2368-2-0x00000000004C0000-0x0000000000528000-memory.dmp

Filesize
416KB

Download
memory/2368-0-0x000007FEF59F3000-0x000007FEF59F4000-memory.dmp

Filesize
4KB

Download
memory/2368-3-0x000007FEF59F0000-0x000007FEF63DC000-memory.dmp

Filesize
9.9MB

Download
memory/2368-23-0x000007FEF59F0000-0x000007FEF63DC000-memory.dmp

Filesize
9.9MB

Download
memory/2368-1-0x0000000000840000-0x00000000008AA000-memory.dmp

Filesize
424KB

Download
memory/2984-10-0x0000000001EF0000-0x0000000001EF8000-memory.dmp

Filesize
32KB

Download
memory/2984-9-0x000000001B650000-0x000000001B932000-memory.dmp

Filesize
2.9MB

Download
memory/2984-8-0x0000000002D20000-0x0000000002DA0000-memory.dmp

Filesize
512KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads