asyncrat | e490c0eb6beec707ee6a46816aa7b765a98a5a637f66a854948270ed06b2332a

General

Target

BOLETA DE CITACION SEPTIEMBRE.exe
Size

1.8MB
MD5

ff034e670af40d53470dc8f1536fd58e
SHA1

cc48f6ec06ce2f4a5d11d4ba693413c807fb2c7d
SHA256

e490c0eb6beec707ee6a46816aa7b765a98a5a637f66a854948270ed06b2332a
SHA512

4bb24683fb06a078ff448918f4e118015d88eb03e07ee4a66cf3200e15c5eb4888fd59349102932a3048eb24371bedd1909ef42aa9ac0d1a1b19d62eff24a5d3
SSDEEP

49152:pHIKvoo917KPKE7xPd9gAKl1mphxF1ZQik92/hRWGQX:tx92Kb5mzr1ljPWJX

Score

10^/10

asyncrat default persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

dfdagreyt.duckdns.org:8091

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.
rat asyncrat

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4880-143-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat

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:

BOLETA DE CITACION SEPTIEMBRE.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	BOLETA DE CITACION SEPTIEMBRE.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

BOLETA DE CITACION SEPTIEMBRE.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Mpqsjqn = "\"C:\\Users\\Admin\\AppData\\Roaming\\Klmgdma\\Mpqsjqn.exe\""	BOLETA DE CITACION SEPTIEMBRE.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

BOLETA DE CITACION SEPTIEMBRE.exe

description pid process target process

PID 4004 set thread context of 4880 4004 BOLETA DE CITACION SEPTIEMBRE.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 2 IoCs

Processes:

powershell.exe

pid process

1252 powershell.exe
1252 powershell.exe

description	pid	process	target process
PID 4004 set thread context of 4880	4004	BOLETA DE CITACION SEPTIEMBRE.exe	InstallUtil.exe

pid	process
1252	powershell.exe
1252	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

powershell.exeBOLETA DE CITACION SEPTIEMBRE.exeInstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	1252	powershell.exe
Token: SeDebugPrivilege	4004	BOLETA DE CITACION SEPTIEMBRE.exe
Token: SeDebugPrivilege	4880	InstallUtil.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

BOLETA DE CITACION SEPTIEMBRE.exe

description	pid	process	target process
PID 4004 wrote to memory of 1252	4004	BOLETA DE CITACION SEPTIEMBRE.exe	powershell.exe
PID 4004 wrote to memory of 1252	4004	BOLETA DE CITACION SEPTIEMBRE.exe	powershell.exe
PID 4004 wrote to memory of 1252	4004	BOLETA DE CITACION SEPTIEMBRE.exe	powershell.exe
PID 4004 wrote to memory of 4880	4004	BOLETA DE CITACION SEPTIEMBRE.exe	InstallUtil.exe
PID 4004 wrote to memory of 4880	4004	BOLETA DE CITACION SEPTIEMBRE.exe	InstallUtil.exe
PID 4004 wrote to memory of 4880	4004	BOLETA DE CITACION SEPTIEMBRE.exe	InstallUtil.exe
PID 4004 wrote to memory of 4880	4004	BOLETA DE CITACION SEPTIEMBRE.exe	InstallUtil.exe
PID 4004 wrote to memory of 4880	4004	BOLETA DE CITACION SEPTIEMBRE.exe	InstallUtil.exe
PID 4004 wrote to memory of 4880	4004	BOLETA DE CITACION SEPTIEMBRE.exe	InstallUtil.exe
PID 4004 wrote to memory of 4880	4004	BOLETA DE CITACION SEPTIEMBRE.exe	InstallUtil.exe
PID 4004 wrote to memory of 4880	4004	BOLETA DE CITACION SEPTIEMBRE.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\BOLETA DE CITACION SEPTIEMBRE.exe
"C:\Users\Admin\AppData\Local\Temp\BOLETA DE CITACION SEPTIEMBRE.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4004

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:1252

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:4880

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/1252-138-0x0000000005F30000-0x0000000005F96000-memory.dmp

Filesize
408KB

Download
memory/1252-140-0x0000000007BB0000-0x000000000822A000-memory.dmp

Filesize
6.5MB

Download
memory/1252-134-0x0000000000000000-mapping.dmp

Download
memory/1252-135-0x0000000002DA0000-0x0000000002DD6000-memory.dmp

Filesize
216KB

Download
memory/1252-136-0x00000000056D0000-0x0000000005CF8000-memory.dmp

Filesize
6.2MB

Download
memory/1252-137-0x0000000005470000-0x00000000054D6000-memory.dmp

Filesize
408KB

Download
memory/1252-139-0x0000000006360000-0x000000000637E000-memory.dmp

Filesize
120KB

Download
memory/1252-141-0x0000000006860000-0x000000000687A000-memory.dmp

Filesize
104KB

Download
memory/4004-132-0x0000000000C50000-0x0000000000E22000-memory.dmp

Filesize
1.8MB

Download
memory/4004-133-0x0000000005AC0000-0x0000000005AE2000-memory.dmp

Filesize
136KB

Download
memory/4880-142-0x0000000000000000-mapping.dmp

Download
memory/4880-143-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4880-144-0x0000000005BC0000-0x0000000005C5C000-memory.dmp

Filesize
624KB

Download
memory/4880-145-0x0000000006210000-0x00000000067B4000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads