asyncrat | 0732ec5e0f81b1125c1c5490b25b6b24c55e21b6e16c2d392050c422855da071

General

Target

ZenoExecutor V1 Installer.exe
Size

98KB
MD5

a721d3863b188dbb51d95dcb2d963a44
SHA1

a0ed4f31f78e9b903719b9d788995ba2f830655a
SHA256

0732ec5e0f81b1125c1c5490b25b6b24c55e21b6e16c2d392050c422855da071
SHA512

424c11fd5f1e022ae8b2758fa3dd8f0050393bffb36d66de89dd5973ef960f3e33ab183b6083d3948c3a9098afaaba5c68fab37306f5a2902167f00a2084221a
SSDEEP

3072:hu6FTv2S2q5f3INgibu+HHwJOYprr8jDNSgOEHaZXTJ5x:hu6UfoGgib1HMr8jDUgxQXR

Score

10^/10

asyncrat default rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

127.0.0.1:1337

192.168.1.11:1337

90.240.254.189:1337

Mutex

NDO9pZJr6iLD

Attributes

delay
3
install
true
install_file
Security.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\Security.exe	family_asyncrat

Executes dropped EXE 1 IoCs

Processes:

Security.exe

pid process

2724 Security.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

2648 cmd.exe
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

2520 schtasks.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

2828 timeout.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

ZenoExecutor V1 Installer.exe

pid process

2964 ZenoExecutor V1 Installer.exe
2964 ZenoExecutor V1 Installer.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

ZenoExecutor V1 Installer.exeSecurity.exe

description pid process

Token: SeDebugPrivilege 2964 ZenoExecutor V1 Installer.exe
Token: SeDebugPrivilege 2724 Security.exe

pid	process
2724	Security.exe

pid	process
2648	cmd.exe

pid	process
2520	schtasks.exe

pid	process
2828	timeout.exe

pid	process
2964	ZenoExecutor V1 Installer.exe
2964	ZenoExecutor V1 Installer.exe

description	pid	process
Token: SeDebugPrivilege	2964	ZenoExecutor V1 Installer.exe
Token: SeDebugPrivilege	2724	Security.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

ZenoExecutor V1 Installer.execmd.execmd.exe

description	pid	process	target process
PID 2964 wrote to memory of 2052	2964	ZenoExecutor V1 Installer.exe	cmd.exe
PID 2964 wrote to memory of 2052	2964	ZenoExecutor V1 Installer.exe	cmd.exe
PID 2964 wrote to memory of 2052	2964	ZenoExecutor V1 Installer.exe	cmd.exe
PID 2964 wrote to memory of 2052	2964	ZenoExecutor V1 Installer.exe	cmd.exe
PID 2964 wrote to memory of 2648	2964	ZenoExecutor V1 Installer.exe	cmd.exe
PID 2964 wrote to memory of 2648	2964	ZenoExecutor V1 Installer.exe	cmd.exe
PID 2964 wrote to memory of 2648	2964	ZenoExecutor V1 Installer.exe	cmd.exe
PID 2964 wrote to memory of 2648	2964	ZenoExecutor V1 Installer.exe	cmd.exe
PID 2052 wrote to memory of 2520	2052	cmd.exe	schtasks.exe
PID 2052 wrote to memory of 2520	2052	cmd.exe	schtasks.exe
PID 2052 wrote to memory of 2520	2052	cmd.exe	schtasks.exe
PID 2052 wrote to memory of 2520	2052	cmd.exe	schtasks.exe
PID 2648 wrote to memory of 2828	2648	cmd.exe	timeout.exe
PID 2648 wrote to memory of 2828	2648	cmd.exe	timeout.exe
PID 2648 wrote to memory of 2828	2648	cmd.exe	timeout.exe
PID 2648 wrote to memory of 2828	2648	cmd.exe	timeout.exe
PID 2648 wrote to memory of 2724	2648	cmd.exe	Security.exe
PID 2648 wrote to memory of 2724	2648	cmd.exe	Security.exe
PID 2648 wrote to memory of 2724	2648	cmd.exe	Security.exe
PID 2648 wrote to memory of 2724	2648	cmd.exe	Security.exe

C:\Users\Admin\AppData\Local\Temp\ZenoExecutor V1 Installer.exe
"C:\Users\Admin\AppData\Local\Temp\ZenoExecutor V1 Installer.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2964
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Security" /tr '"C:\Users\Admin\AppData\Roaming\Security.exe"' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2052
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "Security" /tr '"C:\Users\Admin\AppData\Roaming\Security.exe"'
    3⤵
    - Creates scheduled task(s)
    PID:2520
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp1E4A.tmp.bat""
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2648
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2828
- - C:\Users\Admin\AppData\Roaming\Security.exe
    "C:\Users\Admin\AppData\Roaming\Security.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:2724

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

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp1E4A.tmp.bat

Filesize
152B

MD5
edb1a9a6e7b773c94e41cbf0b35d313f

SHA1
d93a2f71b62993b895895a01b4b29911027078aa

SHA256
368b8348386e5099698e534f8333bae5df7aa5524145cad5a1eedb501b994bb2

SHA512
9b2f4e6c7b93a9e1a73ed236592dd732184b6e1817b45588d46d66dff2ab37c33164acd764ea54d9af72db55eaec64d71324d8ea22a6e319fe2e6c7416627158

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

Filesize
98KB

MD5
a721d3863b188dbb51d95dcb2d963a44

SHA1
a0ed4f31f78e9b903719b9d788995ba2f830655a

SHA256
0732ec5e0f81b1125c1c5490b25b6b24c55e21b6e16c2d392050c422855da071

SHA512
424c11fd5f1e022ae8b2758fa3dd8f0050393bffb36d66de89dd5973ef960f3e33ab183b6083d3948c3a9098afaaba5c68fab37306f5a2902167f00a2084221a

Download Submit
memory/2724-16-0x0000000000100000-0x000000000011E000-memory.dmp

Filesize
120KB

Download
memory/2964-0-0x0000000074C1E000-0x0000000074C1F000-memory.dmp

Filesize
4KB

Download
memory/2964-1-0x00000000000B0000-0x00000000000CE000-memory.dmp

Filesize
120KB

Download
memory/2964-2-0x0000000074C10000-0x00000000752FE000-memory.dmp

Filesize
6.9MB

Download
memory/2964-11-0x0000000074C10000-0x00000000752FE000-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