asyncrat | 3df5b2d8fa12771d01180865d86b83385535794b18232cca17e5a7e3fac585fb

General

Target

38312527c8f936445c85e7ddde36f420.exe
Size

73KB
MD5

38312527c8f936445c85e7ddde36f420
SHA1

725a7f7522e907878eb84456ccb0424332b5cdd6
SHA256

3df5b2d8fa12771d01180865d86b83385535794b18232cca17e5a7e3fac585fb
SHA512

b748a3c76aaeefe29ca856ebbe49b7e316c992af399e6678bb43e0bef297e03cf0144b06cad64a9c46c6a2950e38036a07bd9e3dc23cc67f1b63702153fc38d0
SSDEEP

1536:6aUqAcxVMW7eTmJ9rxjJTkdK4WaxHdSzPMwy/eqmmRhdWVH1bfbCeZkwzUIbVclN:6aUTcxVMW7eiJ9rxjJTkdK4WaP0PMwh6

Score

10^/10

asyncrat exodus rat

Malware Config

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.2

Botnet

Exodus

C2

91.92.255.187:4449

Mutex

ypyertvpyqfr

Attributes

delay
1
install
true
install_file
chromeupdate.exe
install_folder
%AppData%

aes.plain

Signatures

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

Async RAT payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/2528-0-0x0000000000EB0000-0x0000000000EC8000-memory.dmp	asyncrat
behavioral1/memory/2920-19-0x0000000000B80000-0x0000000000B98000-memory.dmp	asyncrat
C:\Users\Admin\AppData\Roaming\chromeupdate.exe	asyncrat

Executes dropped EXE 1 IoCs

Processes:

chromeupdate.exe

pid process

2920 chromeupdate.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

2768 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

2760 timeout.exe

pid	process
2920	chromeupdate.exe

pid	process
2768	schtasks.exe

pid	process
2760	timeout.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

Processes:

38312527c8f936445c85e7ddde36f420.exechromeupdate.exe

pid	process
2528	38312527c8f936445c85e7ddde36f420.exe
2528	38312527c8f936445c85e7ddde36f420.exe
2528	38312527c8f936445c85e7ddde36f420.exe
2920	chromeupdate.exe
2920	chromeupdate.exe
2920	chromeupdate.exe
2920	chromeupdate.exe
2920	chromeupdate.exe
2920	chromeupdate.exe
2920	chromeupdate.exe
2920	chromeupdate.exe
2920	chromeupdate.exe
2920	chromeupdate.exe
2920	chromeupdate.exe
2920	chromeupdate.exe
2920	chromeupdate.exe
2920	chromeupdate.exe
2920	chromeupdate.exe
2920	chromeupdate.exe
2920	chromeupdate.exe
2920	chromeupdate.exe
2920	chromeupdate.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

38312527c8f936445c85e7ddde36f420.exechromeupdate.exe

description pid process

Token: SeDebugPrivilege 2528 38312527c8f936445c85e7ddde36f420.exe
Token: SeDebugPrivilege 2920 chromeupdate.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

chromeupdate.exe

pid process

2920 chromeupdate.exe

description	pid	process
Token: SeDebugPrivilege	2528	38312527c8f936445c85e7ddde36f420.exe
Token: SeDebugPrivilege	2920	chromeupdate.exe

pid	process
2920	chromeupdate.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

38312527c8f936445c85e7ddde36f420.execmd.execmd.exe

description	pid	process	target process
PID 2528 wrote to memory of 1804	2528	38312527c8f936445c85e7ddde36f420.exe	cmd.exe
PID 2528 wrote to memory of 1804	2528	38312527c8f936445c85e7ddde36f420.exe	cmd.exe
PID 2528 wrote to memory of 1804	2528	38312527c8f936445c85e7ddde36f420.exe	cmd.exe
PID 2528 wrote to memory of 2808	2528	38312527c8f936445c85e7ddde36f420.exe	cmd.exe
PID 2528 wrote to memory of 2808	2528	38312527c8f936445c85e7ddde36f420.exe	cmd.exe
PID 2528 wrote to memory of 2808	2528	38312527c8f936445c85e7ddde36f420.exe	cmd.exe
PID 1804 wrote to memory of 2768	1804	cmd.exe	schtasks.exe
PID 1804 wrote to memory of 2768	1804	cmd.exe	schtasks.exe
PID 1804 wrote to memory of 2768	1804	cmd.exe	schtasks.exe
PID 2808 wrote to memory of 2760	2808	cmd.exe	timeout.exe
PID 2808 wrote to memory of 2760	2808	cmd.exe	timeout.exe
PID 2808 wrote to memory of 2760	2808	cmd.exe	timeout.exe
PID 2808 wrote to memory of 2920	2808	cmd.exe	chromeupdate.exe
PID 2808 wrote to memory of 2920	2808	cmd.exe	chromeupdate.exe
PID 2808 wrote to memory of 2920	2808	cmd.exe	chromeupdate.exe

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\38312527c8f936445c85e7ddde36f420.exe
"C:\Users\Admin\AppData\Local\Temp\38312527c8f936445c85e7ddde36f420.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2528

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "chromeupdate" /tr '"C:\Users\Admin\AppData\Roaming\chromeupdate.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:1804

C:\Windows\system32\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "chromeupdate" /tr '"C:\Users\Admin\AppData\Roaming\chromeupdate.exe"'
3⤵
- Creates scheduled task(s)
PID:2768

C:\Windows\system32\cmd.exe
cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp1A54.tmp.bat""
2⤵
- Suspicious use of WriteProcessMemory
PID:2808

C:\Windows\system32\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:2760

C:\Users\Admin\AppData\Roaming\chromeupdate.exe
"C:\Users\Admin\AppData\Roaming\chromeupdate.exe"
3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2920

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp1A54.tmp.bat
Filesize
156B

MD5
357d567e2d13cdefe84511a1872328c6

SHA1
d512f14c59b564a92ebba5f563ebc42c9ed2b26e

SHA256
c19b320c65a5a860d331af50fb5f22176008da1667c63b4749e0ce38f4a9d294

SHA512
7b068fb37534d0fb46a14246a4efcdbe061364d17924bda875d84a64a8758d011f5f2e549975aa238142b7b2ad0a8190aa4be2a2d35e9be5d6571d23856f36be

Download Submit
C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf
Filesize
8B

MD5
cf759e4c5f14fe3eec41b87ed756cea8

SHA1
c27c796bb3c2fac929359563676f4ba1ffada1f5

SHA256
c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761

SHA512
c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

Download Submit
C:\Users\Admin\AppData\Roaming\chromeupdate.exe
Filesize
73KB

MD5
38312527c8f936445c85e7ddde36f420

SHA1
725a7f7522e907878eb84456ccb0424332b5cdd6

SHA256
3df5b2d8fa12771d01180865d86b83385535794b18232cca17e5a7e3fac585fb

SHA512
b748a3c76aaeefe29ca856ebbe49b7e316c992af399e6678bb43e0bef297e03cf0144b06cad64a9c46c6a2950e38036a07bd9e3dc23cc67f1b63702153fc38d0

Download Submit
memory/2528-1-0x000007FEF5380000-0x000007FEF5D6C000-memory.dmp

Filesize
9.9MB

Download
memory/2528-3-0x000000001AEA0000-0x000000001AF20000-memory.dmp

Filesize
512KB

Download
memory/2528-4-0x0000000076F70000-0x0000000077119000-memory.dmp

Filesize
1.7MB

Download
memory/2528-15-0x0000000076F70000-0x0000000077119000-memory.dmp

Filesize
1.7MB

Download
memory/2528-14-0x000007FEF5380000-0x000007FEF5D6C000-memory.dmp

Filesize
9.9MB

Download
memory/2528-0-0x0000000000EB0000-0x0000000000EC8000-memory.dmp

Filesize
96KB

Download
memory/2920-22-0x000000001ADE0000-0x000000001AE60000-memory.dmp

Filesize
512KB

Download
memory/2920-21-0x000007FEF4990000-0x000007FEF537C000-memory.dmp

Filesize
9.9MB

Download
memory/2920-19-0x0000000000B80000-0x0000000000B98000-memory.dmp

Filesize
96KB

Download
memory/2920-23-0x0000000076F70000-0x0000000077119000-memory.dmp

Filesize
1.7MB

Download
memory/2920-24-0x000007FEF4990000-0x000007FEF537C000-memory.dmp

Filesize
9.9MB

Download
memory/2920-25-0x000000001ADE0000-0x000000001AE60000-memory.dmp

Filesize
512KB

Download
memory/2920-26-0x0000000076F70000-0x0000000077119000-memory.dmp

Filesize
1.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads