asyncrat | 99988371c15bd38fc947d898dc6eeb0d425c98f7bd471d040c24c8c667bd2b0b

General

Target

aba9ea59aab84849cf371965c19ef46c.exe
Size

88KB
MD5

aba9ea59aab84849cf371965c19ef46c
SHA1

366050aca450a5d1ea67ea5b6b1902a60c721c01
SHA256

99988371c15bd38fc947d898dc6eeb0d425c98f7bd471d040c24c8c667bd2b0b
SHA512

f38d27e4a58492a59043cf8ee3df3eb317581f3fb98b59d6d1b32163acc83a403425a554e1974e60c857b3489cf1d49a0e6de8734a9a159fea4d6fe571302248

Score

10^/10

asyncrat rat spyware stealer suricata

Malware Config

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers.
rat asyncrat
suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)
suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)
suricata

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/2032-61-0x0000000001F30000-0x0000000001F4B000-memory.dmp	asyncrat

Executes dropped EXE 1 IoCs

Processes:

yipvnj.exe

pid process

1396 yipvnj.exe
Loads dropped DLL 1 IoCs

Processes:

powershell.exe

pid process

1448 powershell.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

9 freegeoip.app
10 freegeoip.app
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

pid	process
1396	yipvnj.exe

flow	ioc
9	freegeoip.app
10	freegeoip.app

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

yipvnj.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0	yipvnj.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier	yipvnj.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

powershell.exeaba9ea59aab84849cf371965c19ef46c.exeyipvnj.exe

pid	process
1448	powershell.exe
2032	aba9ea59aab84849cf371965c19ef46c.exe
1448	powershell.exe
1448	powershell.exe
1396	yipvnj.exe
1396	yipvnj.exe
1396	yipvnj.exe
1396	yipvnj.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

aba9ea59aab84849cf371965c19ef46c.exepowershell.exeyipvnj.exe

description	pid	process
Token: SeDebugPrivilege	2032	aba9ea59aab84849cf371965c19ef46c.exe
Token: SeDebugPrivilege	1448	powershell.exe
Token: SeDebugPrivilege	1396	yipvnj.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

aba9ea59aab84849cf371965c19ef46c.execmd.exepowershell.exe

description	pid	process	target process
PID 2032 wrote to memory of 1260	2032	aba9ea59aab84849cf371965c19ef46c.exe	cmd.exe
PID 2032 wrote to memory of 1260	2032	aba9ea59aab84849cf371965c19ef46c.exe	cmd.exe
PID 2032 wrote to memory of 1260	2032	aba9ea59aab84849cf371965c19ef46c.exe	cmd.exe
PID 2032 wrote to memory of 1260	2032	aba9ea59aab84849cf371965c19ef46c.exe	cmd.exe
PID 1260 wrote to memory of 1448	1260	cmd.exe	powershell.exe
PID 1260 wrote to memory of 1448	1260	cmd.exe	powershell.exe
PID 1260 wrote to memory of 1448	1260	cmd.exe	powershell.exe
PID 1260 wrote to memory of 1448	1260	cmd.exe	powershell.exe
PID 1448 wrote to memory of 1396	1448	powershell.exe	yipvnj.exe
PID 1448 wrote to memory of 1396	1448	powershell.exe	yipvnj.exe
PID 1448 wrote to memory of 1396	1448	powershell.exe	yipvnj.exe
PID 1448 wrote to memory of 1396	1448	powershell.exe	yipvnj.exe

C:\Users\Admin\AppData\Local\Temp\aba9ea59aab84849cf371965c19ef46c.exe
"C:\Users\Admin\AppData\Local\Temp\aba9ea59aab84849cf371965c19ef46c.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2032

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c start /b powershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Local\Temp\yipvnj.exe"' & exit
2⤵
- Suspicious use of WriteProcessMemory
PID:1260

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell –ExecutionPolicy Bypass Start-Process -FilePath '"C:\Users\Admin\AppData\Local\Temp\yipvnj.exe"'
3⤵
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1448

C:\Users\Admin\AppData\Local\Temp\yipvnj.exe
"C:\Users\Admin\AppData\Local\Temp\yipvnj.exe"
4⤵
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1396

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

2

T1081

Discovery

System Information Discovery

2

T1082

Query Registry

1

T1012

Lateral Movement

Collection

Data from Local System

2

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\yipvnj.exe
MD5
c42164ad1b51e44d1ab913473a5d4111

SHA1
cc15753f958287c179941285878c569022934e18

SHA256
221c8d921fd6d429eb61902697f0ffaa5cc351b9d33f769990d50eaba05ed437

SHA512
1ea9dc418d12ffe290b96517d775e40f15abdea0a2e0a463a0bbc8e8675f3d0de87535a4bc8777730a879f15b5c964d44c4a43c93e0e2e5bee86c206cf7086c6

Download Submit
C:\Users\Admin\AppData\Local\Temp\yipvnj.exe
MD5
c42164ad1b51e44d1ab913473a5d4111

SHA1
cc15753f958287c179941285878c569022934e18

SHA256
221c8d921fd6d429eb61902697f0ffaa5cc351b9d33f769990d50eaba05ed437

SHA512
1ea9dc418d12ffe290b96517d775e40f15abdea0a2e0a463a0bbc8e8675f3d0de87535a4bc8777730a879f15b5c964d44c4a43c93e0e2e5bee86c206cf7086c6

Download Submit
\Users\Admin\AppData\Local\Temp\yipvnj.exe
MD5
c42164ad1b51e44d1ab913473a5d4111

SHA1
cc15753f958287c179941285878c569022934e18

SHA256
221c8d921fd6d429eb61902697f0ffaa5cc351b9d33f769990d50eaba05ed437

SHA512
1ea9dc418d12ffe290b96517d775e40f15abdea0a2e0a463a0bbc8e8675f3d0de87535a4bc8777730a879f15b5c964d44c4a43c93e0e2e5bee86c206cf7086c6

Download Submit
memory/1260-62-0x0000000000000000-mapping.dmp

Download
memory/1396-74-0x000000001B340000-0x000000001B342000-memory.dmp

Filesize
8KB

Download
memory/1396-72-0x0000000000EC0000-0x0000000000EC1000-memory.dmp

Filesize
4KB

Download
memory/1396-70-0x0000000000000000-mapping.dmp

Download
memory/1448-67-0x0000000002112000-0x0000000002114000-memory.dmp

Filesize
8KB

Download
memory/1448-63-0x0000000000000000-mapping.dmp

Download
memory/1448-64-0x00000000759B1000-0x00000000759B3000-memory.dmp

Filesize
8KB

Download
memory/1448-66-0x0000000002111000-0x0000000002112000-memory.dmp

Filesize
4KB

Download
memory/1448-65-0x0000000002110000-0x0000000002111000-memory.dmp

Filesize
4KB

Download
memory/2032-54-0x0000000000AF0000-0x0000000000AF1000-memory.dmp

Filesize
4KB

Download
memory/2032-61-0x0000000001F30000-0x0000000001F4B000-memory.dmp

Filesize
108KB

Download
memory/2032-60-0x0000000005AA0000-0x0000000005AF9000-memory.dmp

Filesize
356KB

Download
memory/2032-59-0x0000000006820000-0x00000000068AD000-memory.dmp

Filesize
564KB

Download
memory/2032-58-0x00000000009F0000-0x00000000009F4000-memory.dmp

Filesize
16KB

Download
memory/2032-57-0x0000000005FF0000-0x0000000006069000-memory.dmp

Filesize
484KB

Download
memory/2032-56-0x0000000004DD0000-0x0000000004DD1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads