asyncrat | cae2fb48c8bf03017b0d8321e79b3ac3209887eb77658e617c63f63a6f14f181

General

Target

c59d7f337636c78922afc92241bca86e.exe
Size

1.3MB
MD5

c59d7f337636c78922afc92241bca86e
SHA1

2712b3245ff84f49e72dde931f71d54a05539770
SHA256

cae2fb48c8bf03017b0d8321e79b3ac3209887eb77658e617c63f63a6f14f181
SHA512

7526e6f6a6acc7b8baa16fec29e8c7ba05b5b1049f2951ef44489251b00e2c969e92d9c42c9b5be3ce273f6a42feebcba8605bcff068b7309e79b6801d5f57a7
SSDEEP

12288:yrnjoa5ynWZQzjFeM6DJOjB9sTTHyzhYxwEf4N1gd2vnjc+Wk7pY9gfEqCO:VnYQb6VOp6wYQFEw

Score

10^/10

asyncrat default persistence rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

C2

carlosmenguallora09.duckdns.org:1994

Mutex

DcRatMutex_qwqdanchun

Attributes

delay
1
install
false
install_folder
%AppData%

aes.plain

Signatures

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

Async RAT payload 6 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1800-64-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1800-65-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1800-66-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1800-67-0x000000000040CBBE-mapping.dmp	asyncrat
behavioral1/memory/1800-69-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/1800-71-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

c59d7f337636c78922afc92241bca86e.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows\CurrentVersion\Run\chrome = "\"C:\\Users\\Admin\\AppData\\Roaming\\Xvkclzqcdjb\\chrome.exe\""	c59d7f337636c78922afc92241bca86e.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

c59d7f337636c78922afc92241bca86e.exe

description pid process target process

PID 1636 set thread context of 1800 1636 c59d7f337636c78922afc92241bca86e.exe InstallUtil.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

2028 powershell.exe

description	pid	process	target process
PID 1636 set thread context of 1800	1636	c59d7f337636c78922afc92241bca86e.exe	InstallUtil.exe

pid	process
2028	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

powershell.exec59d7f337636c78922afc92241bca86e.exeInstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	2028	powershell.exe
Token: SeDebugPrivilege	1636	c59d7f337636c78922afc92241bca86e.exe
Token: SeDebugPrivilege	1800	InstallUtil.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

c59d7f337636c78922afc92241bca86e.exe

description	pid	process	target process
PID 1636 wrote to memory of 2028	1636	c59d7f337636c78922afc92241bca86e.exe	powershell.exe
PID 1636 wrote to memory of 2028	1636	c59d7f337636c78922afc92241bca86e.exe	powershell.exe
PID 1636 wrote to memory of 2028	1636	c59d7f337636c78922afc92241bca86e.exe	powershell.exe
PID 1636 wrote to memory of 2028	1636	c59d7f337636c78922afc92241bca86e.exe	powershell.exe
PID 1636 wrote to memory of 1800	1636	c59d7f337636c78922afc92241bca86e.exe	InstallUtil.exe
PID 1636 wrote to memory of 1800	1636	c59d7f337636c78922afc92241bca86e.exe	InstallUtil.exe
PID 1636 wrote to memory of 1800	1636	c59d7f337636c78922afc92241bca86e.exe	InstallUtil.exe
PID 1636 wrote to memory of 1800	1636	c59d7f337636c78922afc92241bca86e.exe	InstallUtil.exe
PID 1636 wrote to memory of 1800	1636	c59d7f337636c78922afc92241bca86e.exe	InstallUtil.exe
PID 1636 wrote to memory of 1800	1636	c59d7f337636c78922afc92241bca86e.exe	InstallUtil.exe
PID 1636 wrote to memory of 1800	1636	c59d7f337636c78922afc92241bca86e.exe	InstallUtil.exe
PID 1636 wrote to memory of 1800	1636	c59d7f337636c78922afc92241bca86e.exe	InstallUtil.exe
PID 1636 wrote to memory of 1800	1636	c59d7f337636c78922afc92241bca86e.exe	InstallUtil.exe
PID 1636 wrote to memory of 1800	1636	c59d7f337636c78922afc92241bca86e.exe	InstallUtil.exe
PID 1636 wrote to memory of 1800	1636	c59d7f337636c78922afc92241bca86e.exe	InstallUtil.exe
PID 1636 wrote to memory of 1800	1636	c59d7f337636c78922afc92241bca86e.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\c59d7f337636c78922afc92241bca86e.exe
"C:\Users\Admin\AppData\Local\Temp\c59d7f337636c78922afc92241bca86e.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1636

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQAwAA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2028

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:1800

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/1636-55-0x00000000005B0000-0x0000000000656000-memory.dmp

Filesize
664KB

Download
memory/1636-56-0x0000000004940000-0x00000000049D2000-memory.dmp

Filesize
584KB

Download
memory/1636-54-0x0000000000D90000-0x0000000000EE2000-memory.dmp

Filesize
1.3MB

Download
memory/1800-66-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1800-71-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1800-69-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1800-67-0x000000000040CBBE-mapping.dmp

Download
memory/1800-61-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1800-62-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1800-64-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/1800-65-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/2028-57-0x0000000000000000-mapping.dmp

Download
memory/2028-60-0x000000006F4C0000-0x000000006FA6B000-memory.dmp

Filesize
5.7MB

Download
memory/2028-59-0x000000006F4C0000-0x000000006FA6B000-memory.dmp

Filesize
5.7MB

Download
memory/2028-58-0x0000000075071000-0x0000000075073000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads