asyncrat | da37d1762b3a6ce5c7a161f57e85cd9c240fb8f4706507acd1d77d8b704ffcf8

General

Target

da37d1762b3a6ce5c7a161f57e85cd9c240fb8f4706507acd1d77d8b704ffcf8.exe
Size

47KB
MD5

4cf1f5023c04a7f09a438b70a7924e0a
SHA1

0192bc4d55a2a1ab92f3a33227cefb4dcf3a2330
SHA256

da37d1762b3a6ce5c7a161f57e85cd9c240fb8f4706507acd1d77d8b704ffcf8
SHA512

f65121c835efd40fb494ec6ed13467cf425833b445fb8f784578785f1ab742bd4ba34be57d4e61065727a18d26a545c0350ad1afed54fe293d3eeca061ecb097
SSDEEP

768:4u08VTBRlc6nWUbjelmo2qj7iFRB7AfMPIpB+nwdL80bCo/GQRLN384x7ZGS5Bh3:4u08VTBncr28gByxpcwdLvbCaLlBiCqc

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

127.0.0.1:4782

127.0.0.1:25329

misterzeee-21127.portmap.host:6606

misterzeee-21127.portmap.host:7707

misterzeee-21127.portmap.host:8808

misterzeee-21127.portmap.host:4782

misterzeee-21127.portmap.host:25329

Mutex

pcPq8IaM233R

Attributes

delay
3
install
true
install_file
AntiVirus.exe
install_folder
%Temp%

aes.plain

Signatures

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

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
\Users\Admin\AppData\Local\Temp\AntiVirus.exe	family_asyncrat

Executes dropped EXE 1 IoCs

Processes:

AntiVirus.exe

pid process

2844 AntiVirus.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

2408 cmd.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

pid	process
2844	AntiVirus.exe

pid	process
2408	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:

da37d1762b3a6ce5c7a161f57e85cd9c240fb8f4706507acd1d77d8b704ffcf8.execmd.execmd.exeschtasks.exetimeout.exeAntiVirus.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	da37d1762b3a6ce5c7a161f57e85cd9c240fb8f4706507acd1d77d8b704ffcf8.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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AntiVirus.exe

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

2316 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

2700 schtasks.exe

pid	process
2316	timeout.exe

pid	process
2700	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

da37d1762b3a6ce5c7a161f57e85cd9c240fb8f4706507acd1d77d8b704ffcf8.exe

pid	process
2968	da37d1762b3a6ce5c7a161f57e85cd9c240fb8f4706507acd1d77d8b704ffcf8.exe
2968	da37d1762b3a6ce5c7a161f57e85cd9c240fb8f4706507acd1d77d8b704ffcf8.exe
2968	da37d1762b3a6ce5c7a161f57e85cd9c240fb8f4706507acd1d77d8b704ffcf8.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

da37d1762b3a6ce5c7a161f57e85cd9c240fb8f4706507acd1d77d8b704ffcf8.exeAntiVirus.exe

description	pid	process
Token: SeDebugPrivilege	2968	da37d1762b3a6ce5c7a161f57e85cd9c240fb8f4706507acd1d77d8b704ffcf8.exe
Token: SeDebugPrivilege	2844	AntiVirus.exe
Token: SeDebugPrivilege	2844	AntiVirus.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

da37d1762b3a6ce5c7a161f57e85cd9c240fb8f4706507acd1d77d8b704ffcf8.execmd.execmd.exe

description	pid	process	target process
PID 2968 wrote to memory of 1844	2968	da37d1762b3a6ce5c7a161f57e85cd9c240fb8f4706507acd1d77d8b704ffcf8.exe	cmd.exe
PID 2968 wrote to memory of 1844	2968	da37d1762b3a6ce5c7a161f57e85cd9c240fb8f4706507acd1d77d8b704ffcf8.exe	cmd.exe
PID 2968 wrote to memory of 1844	2968	da37d1762b3a6ce5c7a161f57e85cd9c240fb8f4706507acd1d77d8b704ffcf8.exe	cmd.exe
PID 2968 wrote to memory of 1844	2968	da37d1762b3a6ce5c7a161f57e85cd9c240fb8f4706507acd1d77d8b704ffcf8.exe	cmd.exe
PID 2968 wrote to memory of 2408	2968	da37d1762b3a6ce5c7a161f57e85cd9c240fb8f4706507acd1d77d8b704ffcf8.exe	cmd.exe
PID 2968 wrote to memory of 2408	2968	da37d1762b3a6ce5c7a161f57e85cd9c240fb8f4706507acd1d77d8b704ffcf8.exe	cmd.exe
PID 2968 wrote to memory of 2408	2968	da37d1762b3a6ce5c7a161f57e85cd9c240fb8f4706507acd1d77d8b704ffcf8.exe	cmd.exe
PID 2968 wrote to memory of 2408	2968	da37d1762b3a6ce5c7a161f57e85cd9c240fb8f4706507acd1d77d8b704ffcf8.exe	cmd.exe
PID 1844 wrote to memory of 2700	1844	cmd.exe	schtasks.exe
PID 1844 wrote to memory of 2700	1844	cmd.exe	schtasks.exe
PID 1844 wrote to memory of 2700	1844	cmd.exe	schtasks.exe
PID 1844 wrote to memory of 2700	1844	cmd.exe	schtasks.exe
PID 2408 wrote to memory of 2316	2408	cmd.exe	timeout.exe
PID 2408 wrote to memory of 2316	2408	cmd.exe	timeout.exe
PID 2408 wrote to memory of 2316	2408	cmd.exe	timeout.exe
PID 2408 wrote to memory of 2316	2408	cmd.exe	timeout.exe
PID 2408 wrote to memory of 2844	2408	cmd.exe	AntiVirus.exe
PID 2408 wrote to memory of 2844	2408	cmd.exe	AntiVirus.exe
PID 2408 wrote to memory of 2844	2408	cmd.exe	AntiVirus.exe
PID 2408 wrote to memory of 2844	2408	cmd.exe	AntiVirus.exe

C:\Users\Admin\AppData\Local\Temp\da37d1762b3a6ce5c7a161f57e85cd9c240fb8f4706507acd1d77d8b704ffcf8.exe
"C:\Users\Admin\AppData\Local\Temp\da37d1762b3a6ce5c7a161f57e85cd9c240fb8f4706507acd1d77d8b704ffcf8.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2968

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "AntiVirus" /tr '"C:\Users\Admin\AppData\Local\Temp\AntiVirus.exe"' & exit
2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1844

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "AntiVirus" /tr '"C:\Users\Admin\AppData\Local\Temp\AntiVirus.exe"'
3⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2700

C:\Windows\SysWOW64\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpB06B.tmp.bat""
2⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2408

C:\Windows\SysWOW64\timeout.exe
timeout 3
3⤵
- System Location Discovery: System Language Discovery
- Delays execution with timeout.exe
PID:2316

C:\Users\Admin\AppData\Local\Temp\AntiVirus.exe
"C:\Users\Admin\AppData\Local\Temp\AntiVirus.exe"
3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:2844

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\tmpB06B.tmp.bat

Filesize
156B

MD5
6c5db12a269c4e87992c7745fa97da70

SHA1
80978b6f5e365e4509d7cb5ecddbcf2d55c1ebd3

SHA256
5fb5a4c1bd58d78384bed623ef8a2273d56dc16884757ada0190b5d3d4f6aba9

SHA512
fe0a4b6464cc96ab1a7cb7b11394bb2966f9094b34f0dd7820089bb317d592dcbdf59eaeff72c3f2a1d095ae31d2618ada6bb9c911b6e68b5a578d0e77d0d57e

Download Submit
\Users\Admin\AppData\Local\Temp\AntiVirus.exe

Filesize
47KB

MD5
4cf1f5023c04a7f09a438b70a7924e0a

SHA1
0192bc4d55a2a1ab92f3a33227cefb4dcf3a2330

SHA256
da37d1762b3a6ce5c7a161f57e85cd9c240fb8f4706507acd1d77d8b704ffcf8

SHA512
f65121c835efd40fb494ec6ed13467cf425833b445fb8f784578785f1ab742bd4ba34be57d4e61065727a18d26a545c0350ad1afed54fe293d3eeca061ecb097

Download Submit
memory/2844-16-0x0000000000D90000-0x0000000000DA2000-memory.dmp

Filesize
72KB

Download
memory/2968-0-0x000000007455E000-0x000000007455F000-memory.dmp

Filesize
4KB

Download
memory/2968-1-0x0000000000140000-0x0000000000152000-memory.dmp

Filesize
72KB

Download
memory/2968-2-0x0000000074550000-0x0000000074C3E000-memory.dmp

Filesize
6.9MB

Download
memory/2968-11-0x0000000074550000-0x0000000074C3E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads