asyncrat | c9735d5cb6d553dbedcc04e9026961432607e01074aaa863cbd8e576760453cd

General

Target

IMG-2983562837502856238572 IMPORTANTE CONFIRMACION DE TRANSFERENCIA 27 DE SEPTIEMBRE DEL 2022.exe
Size

1.1MB
MD5

63027acdb2e94bb2898f500e0cab0096
SHA1

9cbfef38ce9f29573fa2ef3ef1b9ae1f48d86744
SHA256

c9735d5cb6d553dbedcc04e9026961432607e01074aaa863cbd8e576760453cd
SHA512

2dd3bab440c80bff02a831cb055666066dd6ae359554a81f6a72293d6b9d6fd06747e3325d0f03faffa78d9ebee769472c558f670ef8492348ed4446eb473ba3
SSDEEP

24576:Yg5q8YY6KYuTZkpQpZzY9x9Pnnl6PVoPnP2IRfVYhsgWsa:v5j6UlvZzcx9Pl6PonPchhWz

Score

10^/10

asyncrat default persistence rat

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

C2

mauriciocarrascallora09.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 1 IoCs

rat

resource	yara_rule
behavioral2/memory/2860-144-0x0000000000400000-0x0000000000412000-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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	IMG-2983562837502856238572 IMPORTANTE CONFIRMACION DE TRANSFERENCIA 27 DE SEPTIEMBRE DEL 2022.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\chrome = "\"C:\\Users\\Admin\\AppData\\Roaming\\Woqzfcnpy\\chrome.exe\""	IMG-2983562837502856238572 IMPORTANTE CONFIRMACION DE TRANSFERENCIA 27 DE SEPTIEMBRE DEL 2022.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4572 set thread context of 2860	4572	IMG-2983562837502856238572 IMPORTANTE CONFIRMACION DE TRANSFERENCIA 27 DE SEPTIEMBRE DEL 2022.exe	88

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 4 IoCs

pid	Process
332	powershell.exe
332	powershell.exe
4572	IMG-2983562837502856238572 IMPORTANTE CONFIRMACION DE TRANSFERENCIA 27 DE SEPTIEMBRE DEL 2022.exe
4572	IMG-2983562837502856238572 IMPORTANTE CONFIRMACION DE TRANSFERENCIA 27 DE SEPTIEMBRE DEL 2022.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4572	IMG-2983562837502856238572 IMPORTANTE CONFIRMACION DE TRANSFERENCIA 27 DE SEPTIEMBRE DEL 2022.exe
Token: SeDebugPrivilege	332	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4572 wrote to memory of 332	4572	IMG-2983562837502856238572 IMPORTANTE CONFIRMACION DE TRANSFERENCIA 27 DE SEPTIEMBRE DEL 2022.exe	82
PID 4572 wrote to memory of 332	4572	IMG-2983562837502856238572 IMPORTANTE CONFIRMACION DE TRANSFERENCIA 27 DE SEPTIEMBRE DEL 2022.exe	82
PID 4572 wrote to memory of 332	4572	IMG-2983562837502856238572 IMPORTANTE CONFIRMACION DE TRANSFERENCIA 27 DE SEPTIEMBRE DEL 2022.exe	82
PID 4572 wrote to memory of 2036	4572	IMG-2983562837502856238572 IMPORTANTE CONFIRMACION DE TRANSFERENCIA 27 DE SEPTIEMBRE DEL 2022.exe	87
PID 4572 wrote to memory of 2036	4572	IMG-2983562837502856238572 IMPORTANTE CONFIRMACION DE TRANSFERENCIA 27 DE SEPTIEMBRE DEL 2022.exe	87
PID 4572 wrote to memory of 2036	4572	IMG-2983562837502856238572 IMPORTANTE CONFIRMACION DE TRANSFERENCIA 27 DE SEPTIEMBRE DEL 2022.exe	87
PID 4572 wrote to memory of 2860	4572	IMG-2983562837502856238572 IMPORTANTE CONFIRMACION DE TRANSFERENCIA 27 DE SEPTIEMBRE DEL 2022.exe	88
PID 4572 wrote to memory of 2860	4572	IMG-2983562837502856238572 IMPORTANTE CONFIRMACION DE TRANSFERENCIA 27 DE SEPTIEMBRE DEL 2022.exe	88
PID 4572 wrote to memory of 2860	4572	IMG-2983562837502856238572 IMPORTANTE CONFIRMACION DE TRANSFERENCIA 27 DE SEPTIEMBRE DEL 2022.exe	88
PID 4572 wrote to memory of 2860	4572	IMG-2983562837502856238572 IMPORTANTE CONFIRMACION DE TRANSFERENCIA 27 DE SEPTIEMBRE DEL 2022.exe	88
PID 4572 wrote to memory of 2860	4572	IMG-2983562837502856238572 IMPORTANTE CONFIRMACION DE TRANSFERENCIA 27 DE SEPTIEMBRE DEL 2022.exe	88
PID 4572 wrote to memory of 2860	4572	IMG-2983562837502856238572 IMPORTANTE CONFIRMACION DE TRANSFERENCIA 27 DE SEPTIEMBRE DEL 2022.exe	88
PID 4572 wrote to memory of 2860	4572	IMG-2983562837502856238572 IMPORTANTE CONFIRMACION DE TRANSFERENCIA 27 DE SEPTIEMBRE DEL 2022.exe	88
PID 4572 wrote to memory of 2860	4572	IMG-2983562837502856238572 IMPORTANTE CONFIRMACION DE TRANSFERENCIA 27 DE SEPTIEMBRE DEL 2022.exe	88

C:\Users\Admin\AppData\Local\Temp\IMG-2983562837502856238572 IMPORTANTE CONFIRMACION DE TRANSFERENCIA 27 DE SEPTIEMBRE DEL 2022.exe
"C:\Users\Admin\AppData\Local\Temp\IMG-2983562837502856238572 IMPORTANTE CONFIRMACION DE TRANSFERENCIA 27 DE SEPTIEMBRE DEL 2022.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4572
- 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:332
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  2⤵
  PID:2036
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  2⤵
  PID:2860

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/332-138-0x0000000005560000-0x00000000055C6000-memory.dmp

Filesize
408KB

Download
memory/332-135-0x00000000025B0000-0x00000000025E6000-memory.dmp

Filesize
216KB

Download
memory/332-136-0x0000000004D80000-0x00000000053A8000-memory.dmp

Filesize
6.2MB

Download
memory/332-137-0x0000000004C80000-0x0000000004CE6000-memory.dmp

Filesize
408KB

Download
memory/332-139-0x0000000005BA0000-0x0000000005BBE000-memory.dmp

Filesize
120KB

Download
memory/332-140-0x00000000071E0000-0x000000000785A000-memory.dmp

Filesize
6.5MB

Download
memory/332-141-0x00000000060A0000-0x00000000060BA000-memory.dmp

Filesize
104KB

Download
memory/2860-144-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/4572-133-0x0000000009AD0000-0x0000000009AF2000-memory.dmp

Filesize
136KB

Download
memory/4572-132-0x0000000000B80000-0x0000000000CA0000-memory.dmp

Filesize
1.1MB

Download

Analysis

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