asyncrat | a9027c6070365053c3cb91261991c71f1d3a63707df8467e413847f344b3af4d

Analysis

max time kernel
303s
max time network
340s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
18-09-2022 14:13

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General

Target

TrashMalwares-main/mhm.exe
Size

47KB
MD5

21805f1841b424d2f2f107b408df2305
SHA1

d2ec7cbf70574673bc976075a48f7a14f4afeaa6
SHA256

b770e340090d677b9ad89ddca7e21fc435cf4562e9b14ffdb72e5134a0e3418f
SHA512

35e1910353ae781a030c535d79de686f28a51d4beadeef5702ef634c8000d9cd617e7f5d9a75aab0e06b545c375e7564b0fdceee3fd655735d1fae2cd137338b
SSDEEP

768:WuI3dTsErkZTWU/APhmo2qbmQccCV9xfqAsPIwT4viyI0bS2er4PoIhXKb1cKnxq:WuI3dTsX22J/N+ARwT4v9bS2A4gGKb1w

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

127.0.0.1:5552

127.0.0.1:19354

4.tcp.eu.ngrok.io:6606

4.tcp.eu.ngrok.io:7707

4.tcp.eu.ngrok.io:8808

4.tcp.eu.ngrok.io:5552

4.tcp.eu.ngrok.io:19354

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
true
install_file
lolo.exe
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
rat asyncrat

Async RAT payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral22/memory/680-132-0x0000000000890000-0x00000000008A2000-memory.dmp	asyncrat
C:\Users\Admin\AppData\Roaming\lolo.exe	asyncrat
C:\Users\Admin\AppData\Roaming\lolo.exe	asyncrat

Executes dropped EXE 1 IoCs

Processes:

lolo.exe

pid process

1828 lolo.exe
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

mhm.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation mhm.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

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
T1053

Processes:

schtasks.exe

pid process

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

Processes:

timeout.exe

pid process

3868 timeout.exe

pid	process
1828	lolo.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	mhm.exe

pid	process
624	schtasks.exe

pid	process
3868	timeout.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

mhm.exe

pid	process
680	mhm.exe
680	mhm.exe
680	mhm.exe
680	mhm.exe
680	mhm.exe
680	mhm.exe
680	mhm.exe
680	mhm.exe
680	mhm.exe
680	mhm.exe
680	mhm.exe
680	mhm.exe
680	mhm.exe
680	mhm.exe
680	mhm.exe
680	mhm.exe
680	mhm.exe
680	mhm.exe
680	mhm.exe
680	mhm.exe
680	mhm.exe
680	mhm.exe
680	mhm.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

mhm.exelolo.exe

description pid process

Token: SeDebugPrivilege 680 mhm.exe
Token: SeDebugPrivilege 1828 lolo.exe

description	pid	process
Token: SeDebugPrivilege	680	mhm.exe
Token: SeDebugPrivilege	1828	lolo.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

mhm.execmd.execmd.exe

description	pid	process	target process
PID 680 wrote to memory of 3264	680	mhm.exe	cmd.exe
PID 680 wrote to memory of 3264	680	mhm.exe	cmd.exe
PID 680 wrote to memory of 3264	680	mhm.exe	cmd.exe
PID 680 wrote to memory of 3404	680	mhm.exe	cmd.exe
PID 680 wrote to memory of 3404	680	mhm.exe	cmd.exe
PID 680 wrote to memory of 3404	680	mhm.exe	cmd.exe
PID 3404 wrote to memory of 3868	3404	cmd.exe	timeout.exe
PID 3404 wrote to memory of 3868	3404	cmd.exe	timeout.exe
PID 3404 wrote to memory of 3868	3404	cmd.exe	timeout.exe
PID 3264 wrote to memory of 624	3264	cmd.exe	schtasks.exe
PID 3264 wrote to memory of 624	3264	cmd.exe	schtasks.exe
PID 3264 wrote to memory of 624	3264	cmd.exe	schtasks.exe
PID 3404 wrote to memory of 1828	3404	cmd.exe	lolo.exe
PID 3404 wrote to memory of 1828	3404	cmd.exe	lolo.exe
PID 3404 wrote to memory of 1828	3404	cmd.exe	lolo.exe

C:\Users\Admin\AppData\Local\Temp\TrashMalwares-main\mhm.exe
"C:\Users\Admin\AppData\Local\Temp\TrashMalwares-main\mhm.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:680

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "lolo" /tr '"C:\Users\Admin\AppData\Roaming\lolo.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:3264

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "lolo" /tr '"C:\Users\Admin\AppData\Roaming\lolo.exe"'
3⤵
- Creates scheduled task(s)
PID:624

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8155.tmp.bat""
2⤵
- Suspicious use of WriteProcessMemory
PID:3404

C:\Windows\SysWOW64\timeout.exe
timeout 3
3⤵
- Delays execution with timeout.exe
PID:3868

C:\Users\Admin\AppData\Roaming\lolo.exe
"C:\Users\Admin\AppData\Roaming\lolo.exe"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1828

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp8155.tmp.bat
Filesize
148B

MD5
cbabfd967452255a1c3f2fe241c89b46

SHA1
8f455b250f765c037d24e55ec926419664b461d5

SHA256
75baa1a2a90ed650d897c69b0efaf550d573247f41ef7448592750825d99b19c

SHA512
5cce2d6d7c8250fac20fd50b56a26fd083d0ff0e4ff8d8ff0424772d5f0495f66beeb72ecaaa7c1ab3415273786b5bf7c2263bac76103913bf31881aeed660ca

Download Submit
C:\Users\Admin\AppData\Roaming\lolo.exe
Filesize
47KB

MD5
21805f1841b424d2f2f107b408df2305

SHA1
d2ec7cbf70574673bc976075a48f7a14f4afeaa6

SHA256
b770e340090d677b9ad89ddca7e21fc435cf4562e9b14ffdb72e5134a0e3418f

SHA512
35e1910353ae781a030c535d79de686f28a51d4beadeef5702ef634c8000d9cd617e7f5d9a75aab0e06b545c375e7564b0fdceee3fd655735d1fae2cd137338b

Download Submit
C:\Users\Admin\AppData\Roaming\lolo.exe
Filesize
47KB

MD5
21805f1841b424d2f2f107b408df2305

SHA1
d2ec7cbf70574673bc976075a48f7a14f4afeaa6

SHA256
b770e340090d677b9ad89ddca7e21fc435cf4562e9b14ffdb72e5134a0e3418f

SHA512
35e1910353ae781a030c535d79de686f28a51d4beadeef5702ef634c8000d9cd617e7f5d9a75aab0e06b545c375e7564b0fdceee3fd655735d1fae2cd137338b

Download Submit
memory/624-139-0x0000000000000000-mapping.dmp

Download
memory/680-132-0x0000000000890000-0x00000000008A2000-memory.dmp

Filesize
72KB

Download
memory/680-133-0x0000000005560000-0x00000000055C6000-memory.dmp

Filesize
408KB

Download
memory/680-134-0x00000000059B0000-0x0000000005A4C000-memory.dmp

Filesize
624KB

Download
memory/1828-140-0x0000000000000000-mapping.dmp

Download
memory/3264-135-0x0000000000000000-mapping.dmp

Download
memory/3404-136-0x0000000000000000-mapping.dmp

Download
memory/3868-138-0x0000000000000000-mapping.dmp

Download