asyncrat | 447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759

General

Target

start.exe
Size

63KB
MD5

c1ade258f05c512e98ebc4d9d1165f8a
SHA1

acf20f6a7dc7841ae06f801b887289fdc99e0488
SHA256

447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759
SHA512

5b652e0ef6293d7baeb7e9d8b79322ec65e98d748e1df492099fa6692d0bbc78f032df68e7028a28af06b5c27394456159351a6469fdaf777e6eb98609331076
SSDEEP

1536:SaKFoNbEkySYKumUYFOy5biAPY0JG4aRjnl7RUr+TG5x:SawoNbEkAKumUYFD5biF0JejxSsCx

Score

10^/10

asyncrat exodus_market rat spyware stealer

Malware Config

Extracted

Family

asyncrat

Version

| Edit 3LOSH RAT

Botnet

Exodus_Market

C2

leetboy.dynuddns.net:1339

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
true
install_file
svchos.exe
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Async RAT payload 1 IoCs

rat

Processes:

resource	yara_rule
\Users\Admin\AppData\Roaming\svchos.exe	family_asyncrat

Executes dropped EXE 1 IoCs

Processes:

svchos.exe

pid process

2836 svchos.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

2156 cmd.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
T1552.001
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

2604 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

2692 timeout.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

start.exesvchos.exe

pid process

2884 start.exe
2884 start.exe
2836 svchos.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

start.exesvchos.exe

description pid process

Token: SeDebugPrivilege 2884 start.exe
Token: SeDebugPrivilege 2836 svchos.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

svchos.exe

pid process

2836 svchos.exe

pid	process
2836	svchos.exe

pid	process
2156	cmd.exe

pid	process
2604	schtasks.exe

pid	process
2692	timeout.exe

pid	process
2884	start.exe
2884	start.exe
2836	svchos.exe

description	pid	process
Token: SeDebugPrivilege	2884	start.exe
Token: SeDebugPrivilege	2836	svchos.exe

pid	process
2836	svchos.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

start.execmd.execmd.exe

description	pid	process	target process
PID 2884 wrote to memory of 3008	2884	start.exe	cmd.exe
PID 2884 wrote to memory of 3008	2884	start.exe	cmd.exe
PID 2884 wrote to memory of 3008	2884	start.exe	cmd.exe
PID 2884 wrote to memory of 3008	2884	start.exe	cmd.exe
PID 2884 wrote to memory of 2156	2884	start.exe	cmd.exe
PID 2884 wrote to memory of 2156	2884	start.exe	cmd.exe
PID 2884 wrote to memory of 2156	2884	start.exe	cmd.exe
PID 2884 wrote to memory of 2156	2884	start.exe	cmd.exe
PID 3008 wrote to memory of 2604	3008	cmd.exe	schtasks.exe
PID 3008 wrote to memory of 2604	3008	cmd.exe	schtasks.exe
PID 3008 wrote to memory of 2604	3008	cmd.exe	schtasks.exe
PID 3008 wrote to memory of 2604	3008	cmd.exe	schtasks.exe
PID 2156 wrote to memory of 2692	2156	cmd.exe	timeout.exe
PID 2156 wrote to memory of 2692	2156	cmd.exe	timeout.exe
PID 2156 wrote to memory of 2692	2156	cmd.exe	timeout.exe
PID 2156 wrote to memory of 2692	2156	cmd.exe	timeout.exe
PID 2156 wrote to memory of 2836	2156	cmd.exe	svchos.exe
PID 2156 wrote to memory of 2836	2156	cmd.exe	svchos.exe
PID 2156 wrote to memory of 2836	2156	cmd.exe	svchos.exe
PID 2156 wrote to memory of 2836	2156	cmd.exe	svchos.exe

C:\Users\Admin\AppData\Local\Temp\start.exe
"C:\Users\Admin\AppData\Local\Temp\start.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2884
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "svchos" /tr '"C:\Users\Admin\AppData\Roaming\svchos.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3008
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "svchos" /tr '"C:\Users\Admin\AppData\Roaming\svchos.exe"'
    3⤵
    - Creates scheduled task(s)
    PID:2604
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp1BBB.tmp.bat""
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2156
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2692
- - C:\Users\Admin\AppData\Roaming\svchos.exe
    "C:\Users\Admin\AppData\Roaming\svchos.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2836

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Scheduled Task/Job

1

T1053

Privilege Escalation

Scheduled Task/Job

1

T1053

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

Filesize
68KB

MD5
29f65ba8e88c063813cc50a4ea544e93

SHA1
05a7040d5c127e68c25d81cc51271ffb8bef3568

SHA256
1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

SHA512
e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

Download Submit
C:\Users\Admin\AppData\Local\Temp\Tar4DC7.tmp

Filesize
177KB

MD5
435a9ac180383f9fa094131b173a2f7b

SHA1
76944ea657a9db94f9a4bef38f88c46ed4166983

SHA256
67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

SHA512
1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp1BBB.tmp.bat

Filesize
150B

MD5
fffd075946c40f5f880528b3a8aab7f3

SHA1
aafe567a63f664b8e22f5582a715d02aaf8d5292

SHA256
d3d75d27e9c71e9110f5ba7f1a69e4dc5c1d2ed36859e94508cadb67327da9d2

SHA512
68efa4efe23025c216410371b3329660880576636589246b64ae36e9c9a2b28fc59643c5bca0e40e8230b4d4f45f91c1946b43aa98bc61fd1c02e71e95ff9066

Download Submit
\Users\Admin\AppData\Roaming\svchos.exe

Filesize
63KB

MD5
c1ade258f05c512e98ebc4d9d1165f8a

SHA1
acf20f6a7dc7841ae06f801b887289fdc99e0488

SHA256
447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759

SHA512
5b652e0ef6293d7baeb7e9d8b79322ec65e98d748e1df492099fa6692d0bbc78f032df68e7028a28af06b5c27394456159351a6469fdaf777e6eb98609331076

Download Submit
memory/2836-16-0x0000000000F50000-0x0000000000F66000-memory.dmp

Filesize
88KB

Download
memory/2884-0-0x0000000074B2E000-0x0000000074B2F000-memory.dmp

Filesize
4KB

Download
memory/2884-1-0x0000000000FA0000-0x0000000000FB6000-memory.dmp

Filesize
88KB

Download
memory/2884-2-0x0000000074B20000-0x000000007520E000-memory.dmp

Filesize
6.9MB

Download
memory/2884-11-0x0000000074B20000-0x000000007520E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads