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

1132 file.exe
2412 file.exe
2136 file.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

364 cmd.exe

pid	process
1132	file.exe
2412	file.exe
2136	file.exe

pid	process
364	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exefile.exe

description	pid	process	target process
PID 2428 set thread context of 2784	2428	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 2428 set thread context of 2788	2428	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 1132 set thread context of 2412	1132	file.exe	file.exe
PID 1132 set thread context of 2136	1132	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 9 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:

schtasks.exefile.execmd.exetimeout.execmd.exefile.exefile.exea507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exea507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe

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

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

848 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

1460 schtasks.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe

pid process

2788 a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe

pid	process
848	timeout.exe

pid	process
1460	schtasks.exe

pid	process
2788	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exea507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exefile.exe

description	pid	process
Token: SeDebugPrivilege	2428	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
Token: SeDebugPrivilege	2788	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
Token: SeDebugPrivilege	1132	file.exe

Suspicious use of WriteProcessMemory 56 IoCs

Processes:

a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exea507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.execmd.execmd.exefile.exe

description	pid	process	target process
PID 2428 wrote to memory of 2784	2428	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 2428 wrote to memory of 2784	2428	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 2428 wrote to memory of 2784	2428	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 2428 wrote to memory of 2784	2428	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 2428 wrote to memory of 2784	2428	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 2428 wrote to memory of 2784	2428	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 2428 wrote to memory of 2784	2428	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 2428 wrote to memory of 2784	2428	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 2428 wrote to memory of 2784	2428	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 2428 wrote to memory of 2788	2428	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 2428 wrote to memory of 2788	2428	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 2428 wrote to memory of 2788	2428	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 2428 wrote to memory of 2788	2428	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 2428 wrote to memory of 2788	2428	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 2428 wrote to memory of 2788	2428	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 2428 wrote to memory of 2788	2428	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 2428 wrote to memory of 2788	2428	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 2428 wrote to memory of 2788	2428	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
PID 2788 wrote to memory of 932	2788	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	cmd.exe
PID 2788 wrote to memory of 932	2788	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	cmd.exe
PID 2788 wrote to memory of 932	2788	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	cmd.exe
PID 2788 wrote to memory of 932	2788	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	cmd.exe
PID 2788 wrote to memory of 364	2788	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	cmd.exe
PID 2788 wrote to memory of 364	2788	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	cmd.exe
PID 2788 wrote to memory of 364	2788	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	cmd.exe
PID 2788 wrote to memory of 364	2788	a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe	cmd.exe
PID 932 wrote to memory of 1460	932	cmd.exe	schtasks.exe
PID 932 wrote to memory of 1460	932	cmd.exe	schtasks.exe
PID 932 wrote to memory of 1460	932	cmd.exe	schtasks.exe
PID 932 wrote to memory of 1460	932	cmd.exe	schtasks.exe
PID 364 wrote to memory of 848	364	cmd.exe	timeout.exe
PID 364 wrote to memory of 848	364	cmd.exe	timeout.exe
PID 364 wrote to memory of 848	364	cmd.exe	timeout.exe
PID 364 wrote to memory of 848	364	cmd.exe	timeout.exe
PID 364 wrote to memory of 1132	364	cmd.exe	file.exe
PID 364 wrote to memory of 1132	364	cmd.exe	file.exe
PID 364 wrote to memory of 1132	364	cmd.exe	file.exe
PID 364 wrote to memory of 1132	364	cmd.exe	file.exe
PID 1132 wrote to memory of 2412	1132	file.exe	file.exe
PID 1132 wrote to memory of 2412	1132	file.exe	file.exe
PID 1132 wrote to memory of 2412	1132	file.exe	file.exe
PID 1132 wrote to memory of 2412	1132	file.exe	file.exe
PID 1132 wrote to memory of 2412	1132	file.exe	file.exe
PID 1132 wrote to memory of 2412	1132	file.exe	file.exe
PID 1132 wrote to memory of 2412	1132	file.exe	file.exe
PID 1132 wrote to memory of 2412	1132	file.exe	file.exe
PID 1132 wrote to memory of 2412	1132	file.exe	file.exe
PID 1132 wrote to memory of 2136	1132	file.exe	file.exe
PID 1132 wrote to memory of 2136	1132	file.exe	file.exe
PID 1132 wrote to memory of 2136	1132	file.exe	file.exe
PID 1132 wrote to memory of 2136	1132	file.exe	file.exe
PID 1132 wrote to memory of 2136	1132	file.exe	file.exe
PID 1132 wrote to memory of 2136	1132	file.exe	file.exe
PID 1132 wrote to memory of 2136	1132	file.exe	file.exe
PID 1132 wrote to memory of 2136	1132	file.exe	file.exe
PID 1132 wrote to memory of 2136	1132	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:2428

C:\Users\Admin\AppData\Local\Temp\a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
C:\Users\Admin\AppData\Local\Temp\a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed.exe
2⤵
PID:2784

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:2788

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:932

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:1460

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp1111.tmp.bat""
3⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:364

C:\Windows\SysWOW64\timeout.exe
timeout 3
4⤵
- System Location Discovery: System Language Discovery
- Delays execution with timeout.exe
PID:848

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:1132

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:2412

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:2136

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp1111.tmp.bat

Filesize
148B

MD5
fbff9f83a02ecd7621a4f7eb4448b66a

SHA1
19098ab8ebb6998be3871b75cae8698671faa9f1

SHA256
5fd7f5f1ce66d6c2ff340d5108bfcbdf30eb8abb2790706c652c9dd77a4069e0

SHA512
099ce6a8808ee78a31c20f39b6342b7df4ff101e11f687a1be46c913241d7531a78427ac66ba79decf1e049500ddfb49a9566b56c8c745b6695f4ecacf1bb7af

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

Filesize
258KB

MD5
c8ec3f5a2c12207a4783fd6104d02e3a

SHA1
cd75c093ccaa40eac3d136f323adc1ae39ff0b8e

SHA256
a507c03e0b88aee3b3ad83f5ad5302b93bdea090e352357bee2e9220164113ed

SHA512
cdfb1defdebfa609588a219dff39fd509901216182bb53e91abc6e32b6c9dd9b519576671962eeb38dde0d6de0c236ad8508ad90d91b7057f2a5a21cc2b64431

Download Submit
memory/1132-30-0x0000000000870000-0x00000000008BA000-memory.dmp

Filesize
296KB

Download
memory/2136-35-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2136-39-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2428-1-0x0000000000B40000-0x0000000000B8A000-memory.dmp

Filesize
296KB

Download
memory/2428-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

Filesize
24KB

Download
memory/2428-3-0x0000000074400000-0x0000000074AEE000-memory.dmp

Filesize
6.9MB

Download
memory/2428-4-0x0000000000730000-0x0000000000770000-memory.dmp

Filesize
256KB

Download
memory/2428-5-0x00000000004B0000-0x00000000004B6000-memory.dmp

Filesize
24KB

Download
memory/2428-13-0x0000000074400000-0x0000000074AEE000-memory.dmp

Filesize
6.9MB

Download
memory/2428-0-0x000000007440E000-0x000000007440F000-memory.dmp

Filesize
4KB

Download
memory/2788-12-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2788-16-0x0000000074400000-0x0000000074AEE000-memory.dmp

Filesize
6.9MB

Download
memory/2788-26-0x0000000074400000-0x0000000074AEE000-memory.dmp

Filesize
6.9MB

Download
memory/2788-15-0x0000000074400000-0x0000000074AEE000-memory.dmp

Filesize
6.9MB

Download
memory/2788-14-0x0000000074400000-0x0000000074AEE000-memory.dmp

Filesize
6.9MB

Download
memory/2788-9-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2788-7-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads