asyncrat | 7506851853fa3c689b420e1d917ce7bb00738f77f04f98ff249c53fe194f6ea9

General

Target

7506851853fa3c689b420e1d917ce7bb00738f77f04f98ff249c53fe194f6ea9.exe
Size

45KB
MD5

130540412d5048d5297b0e1ce4d8ac5e
SHA1

cb14c85190d452405510add6c17a1ae900c8f1ef
SHA256

7506851853fa3c689b420e1d917ce7bb00738f77f04f98ff249c53fe194f6ea9
SHA512

ab2fe7f29e80a520317fe15bc3d6214b4aa5ec163e35f27718c5f28f48450efc2b0266dc4c8453ebde24b53ec9a1f2c8700337314dbea2311587aa1ff386c49a
SSDEEP

768:8u6cdTAYhbJWUh9Nzmo2qLfKjPGagAWOzjbFgX3i6BwXytKe+CANqlcDZ2j+U:8u6cdTAur2yKTKTO3bCXS6Bw+z+7Fd21

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

45.147.46.188:1604

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
true
install_file
abd.exe
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

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
\Users\Admin\AppData\Roaming\abd.exe	family_asyncrat

Executes dropped EXE 1 IoCs

Processes:

abd.exe

pid process

2744 abd.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

2684 cmd.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2744	abd.exe

pid	process
2684	cmd.exe

System Location Discovery: System Language Discovery 1 TTPs 6 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

Processes:

abd.exe7506851853fa3c689b420e1d917ce7bb00738f77f04f98ff249c53fe194f6ea9.execmd.execmd.exetimeout.exeschtasks.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	abd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7506851853fa3c689b420e1d917ce7bb00738f77f04f98ff249c53fe194f6ea9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

2868 timeout.exe
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence execution

Scheduled Task
T1053.005

Processes:

schtasks.exe

pid process

2496 schtasks.exe

pid	process
2868	timeout.exe

pid	process
2496	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

7506851853fa3c689b420e1d917ce7bb00738f77f04f98ff249c53fe194f6ea9.exe

pid	process
2092	7506851853fa3c689b420e1d917ce7bb00738f77f04f98ff249c53fe194f6ea9.exe
2092	7506851853fa3c689b420e1d917ce7bb00738f77f04f98ff249c53fe194f6ea9.exe
2092	7506851853fa3c689b420e1d917ce7bb00738f77f04f98ff249c53fe194f6ea9.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

7506851853fa3c689b420e1d917ce7bb00738f77f04f98ff249c53fe194f6ea9.exeabd.exe

description	pid	process
Token: SeDebugPrivilege	2092	7506851853fa3c689b420e1d917ce7bb00738f77f04f98ff249c53fe194f6ea9.exe
Token: SeDebugPrivilege	2744	abd.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

7506851853fa3c689b420e1d917ce7bb00738f77f04f98ff249c53fe194f6ea9.execmd.execmd.exe

description	pid	process	target process
PID 2092 wrote to memory of 2104	2092	7506851853fa3c689b420e1d917ce7bb00738f77f04f98ff249c53fe194f6ea9.exe	cmd.exe
PID 2092 wrote to memory of 2104	2092	7506851853fa3c689b420e1d917ce7bb00738f77f04f98ff249c53fe194f6ea9.exe	cmd.exe
PID 2092 wrote to memory of 2104	2092	7506851853fa3c689b420e1d917ce7bb00738f77f04f98ff249c53fe194f6ea9.exe	cmd.exe
PID 2092 wrote to memory of 2104	2092	7506851853fa3c689b420e1d917ce7bb00738f77f04f98ff249c53fe194f6ea9.exe	cmd.exe
PID 2092 wrote to memory of 2684	2092	7506851853fa3c689b420e1d917ce7bb00738f77f04f98ff249c53fe194f6ea9.exe	cmd.exe
PID 2092 wrote to memory of 2684	2092	7506851853fa3c689b420e1d917ce7bb00738f77f04f98ff249c53fe194f6ea9.exe	cmd.exe
PID 2092 wrote to memory of 2684	2092	7506851853fa3c689b420e1d917ce7bb00738f77f04f98ff249c53fe194f6ea9.exe	cmd.exe
PID 2092 wrote to memory of 2684	2092	7506851853fa3c689b420e1d917ce7bb00738f77f04f98ff249c53fe194f6ea9.exe	cmd.exe
PID 2104 wrote to memory of 2496	2104	cmd.exe	schtasks.exe
PID 2104 wrote to memory of 2496	2104	cmd.exe	schtasks.exe
PID 2104 wrote to memory of 2496	2104	cmd.exe	schtasks.exe
PID 2104 wrote to memory of 2496	2104	cmd.exe	schtasks.exe
PID 2684 wrote to memory of 2868	2684	cmd.exe	timeout.exe
PID 2684 wrote to memory of 2868	2684	cmd.exe	timeout.exe
PID 2684 wrote to memory of 2868	2684	cmd.exe	timeout.exe
PID 2684 wrote to memory of 2868	2684	cmd.exe	timeout.exe
PID 2684 wrote to memory of 2744	2684	cmd.exe	abd.exe
PID 2684 wrote to memory of 2744	2684	cmd.exe	abd.exe
PID 2684 wrote to memory of 2744	2684	cmd.exe	abd.exe
PID 2684 wrote to memory of 2744	2684	cmd.exe	abd.exe

C:\Users\Admin\AppData\Local\Temp\7506851853fa3c689b420e1d917ce7bb00738f77f04f98ff249c53fe194f6ea9.exe
"C:\Users\Admin\AppData\Local\Temp\7506851853fa3c689b420e1d917ce7bb00738f77f04f98ff249c53fe194f6ea9.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2092
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "abd" /tr '"C:\Users\Admin\AppData\Roaming\abd.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2104
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "abd" /tr '"C:\Users\Admin\AppData\Roaming\abd.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2496
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpB0C9.tmp.bat""
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2684
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2868
- - C:\Users\Admin\AppData\Roaming\abd.exe
    "C:\Users\Admin\AppData\Roaming\abd.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2744

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpB0C9.tmp.bat

Filesize
147B

MD5
c4273eecf11ece2c4b7c4760b4e59981

SHA1
afe24d1ed1cc7575280dedecb8ce0e988a28c619

SHA256
40be71d0f064061d67d9958aee7baa1be35920f7b4e93c5efd06dd36833a67fd

SHA512
86a07892eb42029fef00c83a1f7e803141b01c0344d3ee9d75b0b1d0ff125b0a1331b81b03d7c49bd2c28baae9bdfa77923906a3faa00316af52526db7374492

Download Submit
\Users\Admin\AppData\Roaming\abd.exe

Filesize
45KB

MD5
130540412d5048d5297b0e1ce4d8ac5e

SHA1
cb14c85190d452405510add6c17a1ae900c8f1ef

SHA256
7506851853fa3c689b420e1d917ce7bb00738f77f04f98ff249c53fe194f6ea9

SHA512
ab2fe7f29e80a520317fe15bc3d6214b4aa5ec163e35f27718c5f28f48450efc2b0266dc4c8453ebde24b53ec9a1f2c8700337314dbea2311587aa1ff386c49a

Download Submit
memory/2092-0-0x00000000741AE000-0x00000000741AF000-memory.dmp

Filesize
4KB

Download
memory/2092-1-0x0000000000D40000-0x0000000000D52000-memory.dmp

Filesize
72KB

Download
memory/2092-2-0x00000000741A0000-0x000000007488E000-memory.dmp

Filesize
6.9MB

Download
memory/2092-12-0x00000000741A0000-0x000000007488E000-memory.dmp

Filesize
6.9MB

Download
memory/2744-16-0x00000000011F0000-0x0000000001202000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads