asyncrat | de1b9f6d4bf9909be6073eb4bb16b724a824e3d3d75baef2cfee19f538c79c7e

General

Target

07812999.exe
Size

691KB
MD5

dd505f7c59aa2882633c01034428e952
SHA1

12ffe4b71bdda14909f5d88301597f9cdf75ff94
SHA256

de1b9f6d4bf9909be6073eb4bb16b724a824e3d3d75baef2cfee19f538c79c7e
SHA512

3c79eb968ce299b91d1c456f52c3a6cd2bfd75ae6ac8f6e35c56800e3d2e3f2ceec0e95545cb7cb6c6305e2a26ff1b681c65dd3470f1e9d16b8726e9c223ebd0
SSDEEP

12288:SrgDkO3hHlWxMzIHREJVk/bq4izoW/m7GloyLwo6s7pSCpCETtwpkZQ6b98I:SMA4hHlWxMiQW/O4ue7koUos1JpfhkX4

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

191.101.130.205:6606

191.101.130.205:7707

191.101.130.205:8808

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
false
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 7 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1676-68-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1676-69-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1676-71-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1676-73-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1676-77-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/468-78-0x0000000002660000-0x00000000026A0000-memory.dmp	asyncrat
behavioral1/memory/1676-80-0x0000000000B40000-0x0000000000B80000-memory.dmp	asyncrat

Suspicious use of SetThreadContext 1 IoCs

Processes:

07812999.exe

description pid process target process

PID 1284 set thread context of 1676 1284 07812999.exe 07812999.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
T1053

Processes:

schtasks.exe

pid process

1296 schtasks.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

468 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 468 powershell.exe

description	pid	process	target process
PID 1284 set thread context of 1676	1284	07812999.exe	07812999.exe

pid	process
1296	schtasks.exe

pid	process
468	powershell.exe

description	pid	process
Token: SeDebugPrivilege	468	powershell.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

07812999.exe

description	pid	process	target process
PID 1284 wrote to memory of 468	1284	07812999.exe	powershell.exe
PID 1284 wrote to memory of 468	1284	07812999.exe	powershell.exe
PID 1284 wrote to memory of 468	1284	07812999.exe	powershell.exe
PID 1284 wrote to memory of 468	1284	07812999.exe	powershell.exe
PID 1284 wrote to memory of 1296	1284	07812999.exe	schtasks.exe
PID 1284 wrote to memory of 1296	1284	07812999.exe	schtasks.exe
PID 1284 wrote to memory of 1296	1284	07812999.exe	schtasks.exe
PID 1284 wrote to memory of 1296	1284	07812999.exe	schtasks.exe
PID 1284 wrote to memory of 1676	1284	07812999.exe	07812999.exe
PID 1284 wrote to memory of 1676	1284	07812999.exe	07812999.exe
PID 1284 wrote to memory of 1676	1284	07812999.exe	07812999.exe
PID 1284 wrote to memory of 1676	1284	07812999.exe	07812999.exe
PID 1284 wrote to memory of 1676	1284	07812999.exe	07812999.exe
PID 1284 wrote to memory of 1676	1284	07812999.exe	07812999.exe
PID 1284 wrote to memory of 1676	1284	07812999.exe	07812999.exe
PID 1284 wrote to memory of 1676	1284	07812999.exe	07812999.exe
PID 1284 wrote to memory of 1676	1284	07812999.exe	07812999.exe

C:\Users\Admin\AppData\Local\Temp\07812999.exe
"C:\Users\Admin\AppData\Local\Temp\07812999.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1284

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\RjBtcy.exe"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:468

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\RjBtcy" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB221.tmp"
2⤵
- Creates scheduled task(s)
PID:1296

C:\Users\Admin\AppData\Local\Temp\07812999.exe
"C:\Users\Admin\AppData\Local\Temp\07812999.exe"
2⤵
PID:1676

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpB221.tmp
Filesize
1KB

MD5
d7c4e1083efde51475ae457b667b2d62

SHA1
5fc69a314f56fe999c6989489e63b80af68eeec3

SHA256
6818eab36248b600a280f48e77cc02e8bb27eb98448ba47da2b5b28c467adc40

SHA512
c3a48e0aadbb225d368da347f12ce206578655644fa8436b2379fffa4336f4f915f7c48cbe14684aecc51b62b6d7e21d4ac36b0803f1efe7d78a37bbd4fcfc81

Download Submit
memory/468-79-0x0000000002660000-0x00000000026A0000-memory.dmp

Filesize
256KB

Download
memory/468-78-0x0000000002660000-0x00000000026A0000-memory.dmp

Filesize
256KB

Download
memory/1284-54-0x0000000001270000-0x0000000001322000-memory.dmp

Filesize
712KB

Download
memory/1284-55-0x00000000011F0000-0x0000000001230000-memory.dmp

Filesize
256KB

Download
memory/1284-56-0x0000000000460000-0x0000000000472000-memory.dmp

Filesize
72KB

Download
memory/1284-57-0x00000000011F0000-0x0000000001230000-memory.dmp

Filesize
256KB

Download
memory/1284-58-0x0000000000970000-0x000000000097C000-memory.dmp

Filesize
48KB

Download
memory/1284-59-0x0000000005BF0000-0x0000000005C3E000-memory.dmp

Filesize
312KB

Download
memory/1284-65-0x0000000005120000-0x0000000005134000-memory.dmp

Filesize
80KB

Download
memory/1676-68-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1676-69-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1676-70-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1676-71-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1676-73-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1676-77-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1676-67-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1676-66-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1676-80-0x0000000000B40000-0x0000000000B80000-memory.dmp

Filesize
256KB

Download
memory/1676-81-0x0000000000B40000-0x0000000000B80000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads