asyncrat | adc6b85fbb55624cdd9a25d9634f08d3991ac60dce86c8f3ed520a88e36371fe

General

Target

0731d232d0af12a5320238914de6bf4a.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"	0731d232d0af12a5320238914de6bf4a.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
2564	powershell.exe

Checks whether UAC is enabled 1 TTPs 2 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	0731d232d0af12a5320238914de6bf4a.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	0731d232d0af12a5320238914de6bf4a.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2476 set thread context of 2340	2476	0731d232d0af12a5320238914de6bf4a.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	jsc.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2564	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2564	powershell.exe
Token: SeDebugPrivilege	2340	jsc.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2476 wrote to memory of 2564	2476	0731d232d0af12a5320238914de6bf4a.exe	30
PID 2476 wrote to memory of 2564	2476	0731d232d0af12a5320238914de6bf4a.exe	30
PID 2476 wrote to memory of 2564	2476	0731d232d0af12a5320238914de6bf4a.exe	30
PID 2476 wrote to memory of 2340	2476	0731d232d0af12a5320238914de6bf4a.exe	32
PID 2476 wrote to memory of 2340	2476	0731d232d0af12a5320238914de6bf4a.exe	32
PID 2476 wrote to memory of 2340	2476	0731d232d0af12a5320238914de6bf4a.exe	32
PID 2476 wrote to memory of 2340	2476	0731d232d0af12a5320238914de6bf4a.exe	32
PID 2476 wrote to memory of 2340	2476	0731d232d0af12a5320238914de6bf4a.exe	32
PID 2476 wrote to memory of 2340	2476	0731d232d0af12a5320238914de6bf4a.exe	32
PID 2476 wrote to memory of 2340	2476	0731d232d0af12a5320238914de6bf4a.exe	32
PID 2476 wrote to memory of 2340	2476	0731d232d0af12a5320238914de6bf4a.exe	32
PID 2476 wrote to memory of 2340	2476	0731d232d0af12a5320238914de6bf4a.exe	32
PID 2476 wrote to memory of 2808	2476	0731d232d0af12a5320238914de6bf4a.exe	33
PID 2476 wrote to memory of 2808	2476	0731d232d0af12a5320238914de6bf4a.exe	33
PID 2476 wrote to memory of 2808	2476	0731d232d0af12a5320238914de6bf4a.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"	0731d232d0af12a5320238914de6bf4a.exe

C:\Users\Admin\AppData\Local\Temp\0731d232d0af12a5320238914de6bf4a.exe
"C:\Users\Admin\AppData\Local\Temp\0731d232d0af12a5320238914de6bf4a.exe"
1⤵
- UAC bypass
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- System policy modification
PID:2476
- 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\0731d232d0af12a5320238914de6bf4a.exe" -Force
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2564
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\jsc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2340
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2476 -s 812
  2⤵
  PID:2808

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\CabB28F.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
memory/2340-20-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2340-18-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2340-11-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2340-13-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2340-21-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2340-15-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2340-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2340-22-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2476-2-0x000000001AD20000-0x000000001AD88000-memory.dmp

Filesize
416KB

Download
memory/2476-0-0x000007FEF5503000-0x000007FEF5504000-memory.dmp

Filesize
4KB

Download
memory/2476-3-0x000007FEF5500000-0x000007FEF5EEC000-memory.dmp

Filesize
9.9MB

Download
memory/2476-1-0x0000000000040000-0x00000000000AA000-memory.dmp

Filesize
424KB

Download
memory/2476-39-0x000007FEF5500000-0x000007FEF5EEC000-memory.dmp

Filesize
9.9MB

Download
memory/2564-9-0x000000001B640000-0x000000001B922000-memory.dmp

Filesize
2.9MB

Download
memory/2564-10-0x0000000002890000-0x0000000002898000-memory.dmp

Filesize
32KB

Download
memory/2564-8-0x0000000002C70000-0x0000000002CF0000-memory.dmp

Filesize
512KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads