asyncrat | 0190d8f34a79387e40de95958d59899ad99dd8bf17810e53502499810aae8aa6

General

Target

0190d8f34a79387e40de95958d59899ad99dd8bf17810e53502499810aae8aa6.exe
Size

615KB
MD5

707b8e65a6d7458fecc11f6ad9936854
SHA1

c32ba8c6988a3dab852f38ccc6423c1d0adfaa72
SHA256

0190d8f34a79387e40de95958d59899ad99dd8bf17810e53502499810aae8aa6
SHA512

313403eb5ed4dd579d3a2fb74ce6a411b5fe120680756a8679775eb5aabc7179f0e7833917e37594000c71331590ee3bc16298cf58ed4104024f98ccaf5ada80

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

127.0.0.1:1194

127.0.0.1:61906

minerboy123-61906.portmap.host:1194

minerboy123-61906.portmap.host:61906

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
true
install_file
Windows Explorer.exe
install_folder
%AppData%

aes.plain

Signatures

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

Async RAT payload 5 IoCs

rat

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Tempwinlogon.exe	asyncrat
C:\Users\Admin\AppData\Local\Tempwinlogon.exe	asyncrat
behavioral2/memory/5068-135-0x0000000000150000-0x000000000016E000-memory.dmp	asyncrat
C:\Users\Admin\AppData\Roaming\Windows Explorer.exe	asyncrat
C:\Users\Admin\AppData\Roaming\Windows Explorer.exe	asyncrat

Executes dropped EXE 2 IoCs

Processes:

Tempwinlogon.exeWindows Explorer.exe

pid process

5068 Tempwinlogon.exe
360 Windows Explorer.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

cscript.exeTempwinlogon.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	cscript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	Tempwinlogon.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

1412 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1700 timeout.exe

pid	process
1412	schtasks.exe

pid	process
1700	timeout.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

Processes:

Tempwinlogon.exe

pid	process
5068	Tempwinlogon.exe
5068	Tempwinlogon.exe
5068	Tempwinlogon.exe
5068	Tempwinlogon.exe
5068	Tempwinlogon.exe
5068	Tempwinlogon.exe
5068	Tempwinlogon.exe
5068	Tempwinlogon.exe
5068	Tempwinlogon.exe
5068	Tempwinlogon.exe
5068	Tempwinlogon.exe
5068	Tempwinlogon.exe
5068	Tempwinlogon.exe
5068	Tempwinlogon.exe
5068	Tempwinlogon.exe
5068	Tempwinlogon.exe
5068	Tempwinlogon.exe
5068	Tempwinlogon.exe
5068	Tempwinlogon.exe
5068	Tempwinlogon.exe
5068	Tempwinlogon.exe
5068	Tempwinlogon.exe
5068	Tempwinlogon.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Tempwinlogon.exeWindows Explorer.exe

description pid process

Token: SeDebugPrivilege 5068 Tempwinlogon.exe
Token: SeDebugPrivilege 360 Windows Explorer.exe

description	pid	process
Token: SeDebugPrivilege	5068	Tempwinlogon.exe
Token: SeDebugPrivilege	360	Windows Explorer.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

0190d8f34a79387e40de95958d59899ad99dd8bf17810e53502499810aae8aa6.execscript.exeTempwinlogon.execmd.execmd.exe

description	pid	process	target process
PID 3604 wrote to memory of 1780	3604	0190d8f34a79387e40de95958d59899ad99dd8bf17810e53502499810aae8aa6.exe	cscript.exe
PID 3604 wrote to memory of 1780	3604	0190d8f34a79387e40de95958d59899ad99dd8bf17810e53502499810aae8aa6.exe	cscript.exe
PID 3604 wrote to memory of 1780	3604	0190d8f34a79387e40de95958d59899ad99dd8bf17810e53502499810aae8aa6.exe	cscript.exe
PID 1780 wrote to memory of 5068	1780	cscript.exe	Tempwinlogon.exe
PID 1780 wrote to memory of 5068	1780	cscript.exe	Tempwinlogon.exe
PID 1780 wrote to memory of 5068	1780	cscript.exe	Tempwinlogon.exe
PID 5068 wrote to memory of 2148	5068	Tempwinlogon.exe	cmd.exe
PID 5068 wrote to memory of 2148	5068	Tempwinlogon.exe	cmd.exe
PID 5068 wrote to memory of 2148	5068	Tempwinlogon.exe	cmd.exe
PID 5068 wrote to memory of 4500	5068	Tempwinlogon.exe	cmd.exe
PID 5068 wrote to memory of 4500	5068	Tempwinlogon.exe	cmd.exe
PID 5068 wrote to memory of 4500	5068	Tempwinlogon.exe	cmd.exe
PID 2148 wrote to memory of 1412	2148	cmd.exe	schtasks.exe
PID 2148 wrote to memory of 1412	2148	cmd.exe	schtasks.exe
PID 2148 wrote to memory of 1412	2148	cmd.exe	schtasks.exe
PID 4500 wrote to memory of 1700	4500	cmd.exe	timeout.exe
PID 4500 wrote to memory of 1700	4500	cmd.exe	timeout.exe
PID 4500 wrote to memory of 1700	4500	cmd.exe	timeout.exe
PID 4500 wrote to memory of 360	4500	cmd.exe	Windows Explorer.exe
PID 4500 wrote to memory of 360	4500	cmd.exe	Windows Explorer.exe
PID 4500 wrote to memory of 360	4500	cmd.exe	Windows Explorer.exe

C:\Users\Admin\AppData\Local\Temp\0190d8f34a79387e40de95958d59899ad99dd8bf17810e53502499810aae8aa6.exe
"C:\Users\Admin\AppData\Local\Temp\0190d8f34a79387e40de95958d59899ad99dd8bf17810e53502499810aae8aa6.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3604

C:\Windows\SysWOW64\cscript.exe
"cscript" C:\Users\Admin\AppData\Local\Temp\5D43.tmp\CryptedAsync.vbs
2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1780

C:\Users\Admin\AppData\Local\Tempwinlogon.exe
"C:\Users\Admin\AppData\Local\Tempwinlogon.exe"
3⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5068

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Windows Explorer" /tr '"C:\Users\Admin\AppData\Roaming\Windows Explorer.exe"' & exit
4⤵
- Suspicious use of WriteProcessMemory
PID:2148

C:\Windows\SysWOW64\schtasks.exe
schtasks /create /f /sc onlogon /rl highest /tn "Windows Explorer" /tr '"C:\Users\Admin\AppData\Roaming\Windows Explorer.exe"'
5⤵
- Creates scheduled task(s)
PID:1412

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpD06F.tmp.bat""
4⤵
- Suspicious use of WriteProcessMemory
PID:4500

C:\Windows\SysWOW64\timeout.exe
timeout 3
5⤵
- Delays execution with timeout.exe
PID:1700

C:\Users\Admin\AppData\Roaming\Windows Explorer.exe
"C:\Users\Admin\AppData\Roaming\Windows Explorer.exe"
5⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:360

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\5D43.tmp\CryptedAsync.vbs
Filesize
577KB

MD5
473198cc93fa0767a9875a4203808f2d

SHA1
267435de27e285e312cf90f2f4cd9b46023c5a4f

SHA256
4aa4f8345805470d5185327fc06b946f2f690dd983a79343cc3dd7488d6ab9ec

SHA512
c3beef74ee7924bfece3418a2522abf87f8051d9022483454ce286789418b36d55fe6d64df29da865faf2ce8f161723d77b9d1a8a058af15a1c60aef36e04308

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpD06F.tmp.bat
Filesize
160B

MD5
7577c36df6e5fd7e3e4f3c9281a74888

SHA1
53a8b5a4d6fa607e154eee67c7b95a63e2e0d679

SHA256
37cefef138653b68c1a5e33613b7121bed4539d1998f388c80cd6b9bec71ff9f

SHA512
76f0c24550c1e01b1ec673c9f4edc6a07413a8e192320de26af41fe0a95b97767f34eba4e28ba2e091932aad6d21ecc13cda2468e4d53ec7baa6aa03039b98db

Download Submit
C:\Users\Admin\AppData\Local\Tempwinlogon.exe
Filesize
96KB

MD5
3437d71b31312c0c0bc33b06fa42741b

SHA1
38d4338f4aa3eb3a190725d9281f5b972160161a

SHA256
62205ec6c648a46c4ad0d1b7a63965f6bd94acda50149478dc05a1f5af6ff215

SHA512
b20402563a66c969d4e2251260f9cffa3c8c3a4de1a9c1a16386b681b3b3e78fb8aa294203bb430dc08859ac366a7376d9855128d216179f66fa20eab8ecbf62

Download Submit
C:\Users\Admin\AppData\Local\Tempwinlogon.exe
Filesize
96KB

MD5
3437d71b31312c0c0bc33b06fa42741b

SHA1
38d4338f4aa3eb3a190725d9281f5b972160161a

SHA256
62205ec6c648a46c4ad0d1b7a63965f6bd94acda50149478dc05a1f5af6ff215

SHA512
b20402563a66c969d4e2251260f9cffa3c8c3a4de1a9c1a16386b681b3b3e78fb8aa294203bb430dc08859ac366a7376d9855128d216179f66fa20eab8ecbf62

Download Submit
C:\Users\Admin\AppData\Roaming\Windows Explorer.exe
Filesize
96KB

MD5
3437d71b31312c0c0bc33b06fa42741b

SHA1
38d4338f4aa3eb3a190725d9281f5b972160161a

SHA256
62205ec6c648a46c4ad0d1b7a63965f6bd94acda50149478dc05a1f5af6ff215

SHA512
b20402563a66c969d4e2251260f9cffa3c8c3a4de1a9c1a16386b681b3b3e78fb8aa294203bb430dc08859ac366a7376d9855128d216179f66fa20eab8ecbf62

Download Submit
C:\Users\Admin\AppData\Roaming\Windows Explorer.exe
Filesize
96KB

MD5
3437d71b31312c0c0bc33b06fa42741b

SHA1
38d4338f4aa3eb3a190725d9281f5b972160161a

SHA256
62205ec6c648a46c4ad0d1b7a63965f6bd94acda50149478dc05a1f5af6ff215

SHA512
b20402563a66c969d4e2251260f9cffa3c8c3a4de1a9c1a16386b681b3b3e78fb8aa294203bb430dc08859ac366a7376d9855128d216179f66fa20eab8ecbf62

Download Submit
memory/360-143-0x0000000000000000-mapping.dmp

Download
memory/1412-140-0x0000000000000000-mapping.dmp

Download
memory/1700-142-0x0000000000000000-mapping.dmp

Download
memory/1780-130-0x0000000000000000-mapping.dmp

Download
memory/2148-138-0x0000000000000000-mapping.dmp

Download
memory/4500-139-0x0000000000000000-mapping.dmp

Download
memory/5068-137-0x0000000005090000-0x000000000512C000-memory.dmp

Filesize
624KB

Download
memory/5068-136-0x0000000004C40000-0x0000000004CA6000-memory.dmp

Filesize
408KB

Download
memory/5068-135-0x0000000000150000-0x000000000016E000-memory.dmp

Filesize
120KB

Download
memory/5068-132-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads