asyncrat | a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed

General

Target

a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
Size

258KB
MD5

c8ec3f5a2c12207a4783fd6104d02e3a
SHA1

cd75c093ccaa40eac3d136f323adc1ae39ff0b8e
SHA256

a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed
SHA512

cdfb1defdebfa609588a219dff39fd509901216182bb53e91abc6e32b6c9dd9b519576671962eeb38dde0d6de0c236ad8508ad90d91b7057f2a5a21cc2b64431
SSDEEP

6144:Xau1waoDb5akFjmNCuZWyfMoilBfrBs7orgSTUWI:Ku6aKFaguZW1oyNFgSTUr

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

154.216.17.207:7707

154.216.17.207:8808

154.216.17.207:1188

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
100
install
true
install_file
file.exe
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
Executes dropped EXE 3 IoCs

Processes:

file.exefile.exefile.exe

pid process

1412 file.exe
2420 file.exe
2040 file.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

2428 cmd.exe

pid	process
1412	file.exe
2420	file.exe
2040	file.exe

pid	process
2428	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exefile.exe

description	pid	process	target process
PID 1792 set thread context of 1680	1792	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 1792 set thread context of 1216	1792	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 1412 set thread context of 2420	1412	file.exe	file.exe
PID 1412 set thread context of 2040	1412	file.exe	file.exe

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 10 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:

a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exea507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.execmd.exeschtasks.exefile.exefile.exefile.exea507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.execmd.exetimeout.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	file.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1796 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

2112 schtasks.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe

pid process

1680 a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe

pid	process
1796	timeout.exe

pid	process
2112	schtasks.exe

pid	process
1680	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exea507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exefile.exe

description	pid	process
Token: SeDebugPrivilege	1792	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
Token: SeDebugPrivilege	1680	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
Token: SeDebugPrivilege	1412	file.exe

Suspicious use of WriteProcessMemory 56 IoCs

Processes:

a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exea507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.execmd.execmd.exefile.exe

description	pid	process	target process
PID 1792 wrote to memory of 1680	1792	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 1792 wrote to memory of 1680	1792	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 1792 wrote to memory of 1680	1792	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 1792 wrote to memory of 1680	1792	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 1792 wrote to memory of 1680	1792	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 1792 wrote to memory of 1680	1792	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 1792 wrote to memory of 1680	1792	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 1792 wrote to memory of 1680	1792	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 1792 wrote to memory of 1680	1792	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 1792 wrote to memory of 1216	1792	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 1792 wrote to memory of 1216	1792	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 1792 wrote to memory of 1216	1792	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 1792 wrote to memory of 1216	1792	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 1792 wrote to memory of 1216	1792	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 1792 wrote to memory of 1216	1792	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 1792 wrote to memory of 1216	1792	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 1792 wrote to memory of 1216	1792	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 1792 wrote to memory of 1216	1792	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 1680 wrote to memory of 2024	1680	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	cmd.exe
PID 1680 wrote to memory of 2024	1680	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	cmd.exe
PID 1680 wrote to memory of 2024	1680	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	cmd.exe
PID 1680 wrote to memory of 2024	1680	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	cmd.exe
PID 1680 wrote to memory of 2428	1680	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	cmd.exe
PID 1680 wrote to memory of 2428	1680	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	cmd.exe
PID 1680 wrote to memory of 2428	1680	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	cmd.exe
PID 1680 wrote to memory of 2428	1680	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	cmd.exe
PID 2428 wrote to memory of 1796	2428	cmd.exe	timeout.exe
PID 2428 wrote to memory of 1796	2428	cmd.exe	timeout.exe
PID 2428 wrote to memory of 1796	2428	cmd.exe	timeout.exe
PID 2428 wrote to memory of 1796	2428	cmd.exe	timeout.exe
PID 2024 wrote to memory of 2112	2024	cmd.exe	schtasks.exe
PID 2024 wrote to memory of 2112	2024	cmd.exe	schtasks.exe
PID 2024 wrote to memory of 2112	2024	cmd.exe	schtasks.exe
PID 2024 wrote to memory of 2112	2024	cmd.exe	schtasks.exe
PID 2428 wrote to memory of 1412	2428	cmd.exe	file.exe
PID 2428 wrote to memory of 1412	2428	cmd.exe	file.exe
PID 2428 wrote to memory of 1412	2428	cmd.exe	file.exe
PID 2428 wrote to memory of 1412	2428	cmd.exe	file.exe
PID 1412 wrote to memory of 2420	1412	file.exe	file.exe
PID 1412 wrote to memory of 2420	1412	file.exe	file.exe
PID 1412 wrote to memory of 2420	1412	file.exe	file.exe
PID 1412 wrote to memory of 2420	1412	file.exe	file.exe
PID 1412 wrote to memory of 2420	1412	file.exe	file.exe
PID 1412 wrote to memory of 2420	1412	file.exe	file.exe
PID 1412 wrote to memory of 2420	1412	file.exe	file.exe
PID 1412 wrote to memory of 2420	1412	file.exe	file.exe
PID 1412 wrote to memory of 2420	1412	file.exe	file.exe
PID 1412 wrote to memory of 2040	1412	file.exe	file.exe
PID 1412 wrote to memory of 2040	1412	file.exe	file.exe
PID 1412 wrote to memory of 2040	1412	file.exe	file.exe
PID 1412 wrote to memory of 2040	1412	file.exe	file.exe
PID 1412 wrote to memory of 2040	1412	file.exe	file.exe
PID 1412 wrote to memory of 2040	1412	file.exe	file.exe
PID 1412 wrote to memory of 2040	1412	file.exe	file.exe
PID 1412 wrote to memory of 2040	1412	file.exe	file.exe
PID 1412 wrote to memory of 2040	1412	file.exe	file.exe

C:\Users\Admin\AppData\Local\Temp\a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
"C:\Users\Admin\AppData\Local\Temp\a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1792

C:\Users\Admin\AppData\Local\Temp\a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
C:\Users\Admin\AppData\Local\Temp\a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1680

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "file" /tr '"C:\Users\Admin\AppData\Roaming\file.exe"' & exit
3⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2024

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "file" /tr '"C:\Users\Admin\AppData\Roaming\file.exe"'
4⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2112

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp140D.tmp.bat""
3⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2428

C:\Windows\SysWOW64\timeout.exe
timeout 3
4⤵
- System Location Discovery: System Language Discovery
- Delays execution with timeout.exe
PID:1796

C:\Users\Admin\AppData\Roaming\file.exe
"C:\Users\Admin\AppData\Roaming\file.exe"
4⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1412

C:\Users\Admin\AppData\Roaming\file.exe
C:\Users\Admin\AppData\Roaming\file.exe
5⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2420

C:\Users\Admin\AppData\Roaming\file.exe
C:\Users\Admin\AppData\Roaming\file.exe
5⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2040

C:\Users\Admin\AppData\Local\Temp\a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
C:\Users\Admin\AppData\Local\Temp\a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
2⤵
- System Location Discovery: System Language Discovery
PID:1216

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\tmp140D.tmp.bat

Filesize
148B

MD5
903b6b2c0c0f46e57c636dd5c303ca22

SHA1
a4820900e282d96877d68b46496f07993517ea98

SHA256
b6cec7ae2835861f0508fd4cfd009b561f8350f974746a5c670dc7ffb3d972e1

SHA512
84c0427caa311941d6a1d941ab3e6ccdc64d4d32e97fdf4cdcfc1196dc1c68a49735c588b12f72e6ab6ef34e531ce434cbbbef56004530d770ebb9224385c5db

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

Filesize
258KB

MD5
c8ec3f5a2c12207a4783fd6104d02e3a

SHA1
cd75c093ccaa40eac3d136f323adc1ae39ff0b8e

SHA256
a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed

SHA512
cdfb1defdebfa609588a219dff39fd509901216182bb53e91abc6e32b6c9dd9b519576671962eeb38dde0d6de0c236ad8508ad90d91b7057f2a5a21cc2b64431

Download Submit
memory/1216-23-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/1216-18-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/1216-24-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/1216-21-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/1412-38-0x0000000000C70000-0x0000000000CBA000-memory.dmp

Filesize
296KB

Download
memory/1680-8-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1680-22-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/1680-17-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/1680-16-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1680-34-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/1680-20-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/1680-6-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1792-19-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/1792-0-0x00000000743FE000-0x00000000743FF000-memory.dmp

Filesize
4KB

Download
memory/1792-5-0x0000000000290000-0x0000000000296000-memory.dmp

Filesize
24KB

Download
memory/1792-2-0x00000000003B0000-0x00000000003B6000-memory.dmp

Filesize
24KB

Download
memory/1792-3-0x0000000000600000-0x0000000000640000-memory.dmp

Filesize
256KB

Download
memory/1792-1-0x0000000000340000-0x000000000038A000-memory.dmp

Filesize
296KB

Download
memory/1792-4-0x00000000743F0000-0x0000000074ADE000-memory.dmp

Filesize
6.9MB

Download
memory/2420-43-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2420-41-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads