asyncrat | e98df30ddb2e8b105e23e7d5e7c913f1cb7d2ef963def3030853daa91f71b75d

General

Target

19590a0af1f36d0aa9e9f7515a5ee7b7.exe
Size

1.1MB
MD5

19590a0af1f36d0aa9e9f7515a5ee7b7
SHA1

ba3812e84be2d9fe890b8398abdc26a3a1d05331
SHA256

e98df30ddb2e8b105e23e7d5e7c913f1cb7d2ef963def3030853daa91f71b75d
SHA512

57d915c8608f07517951fe644abef0505eee8455c3d10d563798d835dde9617a2453d64cf8683e1cb9a720643859af1981dede17f1f91de122ed458ace582b16
SSDEEP

24576:Ob2aCoEYQ68QyzJdmDMbmMNIhfntXoYyLb2rARuG:No3Q0yzPmgb/IvYYWb2rAR

Score

10^/10

asyncrat luxy2sdds rat spyware stealer

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

luxy2sdds

C2

asnyc2020.ddns.net:2119

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
false
install_file
systme.exe
install_folder
%AppData%

aes.plain

Signatures

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

Async RAT payload 7 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/852-59-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/852-60-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/852-61-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/852-62-0x000000000040C74E-mapping.dmp	asyncrat
behavioral1/memory/852-64-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/852-66-0x0000000000400000-0x0000000000412000-memory.dmp	asyncrat
behavioral1/memory/852-72-0x0000000000C40000-0x0000000000C66000-memory.dmp	asyncrat

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
Suspicious use of SetThreadContext 1 IoCs

Processes:

19590a0af1f36d0aa9e9f7515a5ee7b7.exe

description pid process target process

PID 632 set thread context of 852 632 19590a0af1f36d0aa9e9f7515a5ee7b7.exe RegAsm.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 852 RegAsm.exe

description	pid	process	target process
PID 632 set thread context of 852	632	19590a0af1f36d0aa9e9f7515a5ee7b7.exe	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	852	RegAsm.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

19590a0af1f36d0aa9e9f7515a5ee7b7.exe

description	pid	process	target process
PID 632 wrote to memory of 852	632	19590a0af1f36d0aa9e9f7515a5ee7b7.exe	RegAsm.exe
PID 632 wrote to memory of 852	632	19590a0af1f36d0aa9e9f7515a5ee7b7.exe	RegAsm.exe
PID 632 wrote to memory of 852	632	19590a0af1f36d0aa9e9f7515a5ee7b7.exe	RegAsm.exe
PID 632 wrote to memory of 852	632	19590a0af1f36d0aa9e9f7515a5ee7b7.exe	RegAsm.exe
PID 632 wrote to memory of 852	632	19590a0af1f36d0aa9e9f7515a5ee7b7.exe	RegAsm.exe
PID 632 wrote to memory of 852	632	19590a0af1f36d0aa9e9f7515a5ee7b7.exe	RegAsm.exe
PID 632 wrote to memory of 852	632	19590a0af1f36d0aa9e9f7515a5ee7b7.exe	RegAsm.exe
PID 632 wrote to memory of 852	632	19590a0af1f36d0aa9e9f7515a5ee7b7.exe	RegAsm.exe
PID 632 wrote to memory of 852	632	19590a0af1f36d0aa9e9f7515a5ee7b7.exe	RegAsm.exe
PID 632 wrote to memory of 852	632	19590a0af1f36d0aa9e9f7515a5ee7b7.exe	RegAsm.exe
PID 632 wrote to memory of 852	632	19590a0af1f36d0aa9e9f7515a5ee7b7.exe	RegAsm.exe
PID 632 wrote to memory of 852	632	19590a0af1f36d0aa9e9f7515a5ee7b7.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\19590a0af1f36d0aa9e9f7515a5ee7b7.exe
"C:\Users\Admin\AppData\Local\Temp\19590a0af1f36d0aa9e9f7515a5ee7b7.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:632

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
2⤵
- Suspicious use of AdjustPrivilegeToken
PID:852

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/632-54-0x0000000000FF0000-0x000000000111A000-memory.dmp

Filesize
1.2MB

Download
memory/632-55-0x0000000000970000-0x0000000000A02000-memory.dmp

Filesize
584KB

Download
memory/852-56-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/852-57-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/852-59-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/852-60-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/852-61-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/852-62-0x000000000040C74E-mapping.dmp

Download
memory/852-64-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/852-66-0x0000000000400000-0x0000000000412000-memory.dmp

Filesize
72KB

Download
memory/852-67-0x0000000075C31000-0x0000000075C33000-memory.dmp

Filesize
8KB

Download
memory/852-68-0x0000000006440000-0x00000000064BE000-memory.dmp

Filesize
504KB

Download
memory/852-69-0x0000000000590000-0x000000000059A000-memory.dmp

Filesize
40KB

Download
memory/852-70-0x0000000006560000-0x00000000065F0000-memory.dmp

Filesize
576KB

Download
memory/852-71-0x0000000005050000-0x00000000050B0000-memory.dmp

Filesize
384KB

Download
memory/852-72-0x0000000000C40000-0x0000000000C66000-memory.dmp

Filesize
152KB

Download

Analysis

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