asyncrat | 0f07d465b2fb93b367ff2a393574f87b932e4627591091bf8f2f94d3c8e75715

General

Target

0f07d465b2fb93b367ff2a393574f87b932e4627591091bf8f2f94d3c8e75715.exe
Size

45KB
MD5

556407eba4cd85a57fdb6dcdb12e2269
SHA1

d68a0f0831556c4ef3fb3e003385e897a210b751
SHA256

0f07d465b2fb93b367ff2a393574f87b932e4627591091bf8f2f94d3c8e75715
SHA512

d7baa345dac09eb418604a3d6ace4af0a54cb2b5a627967bc9ccdbb5ee5021ef6dd1e042fcc4165aeb5a38f8583af56f99e5472fa1442ee0335cf62e9664c6c0
SSDEEP

768:uuokxmFTkUE1YAgWUOl1nyamo2qR+1uGJAIGYPPI3njbMgX3iWHCHiGTCE2BDZax:uuokxmFTkUMYi1t2HsNx3jbDXSWHnGm0

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

193.23.160.13:7707

Mutex

zTAsGorHPqSl

Attributes

delay
3
install
true
install_file
Server-Host.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

resource	yara_rule
behavioral1/files/0x0005000000010300-13.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2528	Server-Host.exe

Loads dropped DLL 1 IoCs

pid	Process
2008	cmd.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0f07d465b2fb93b367ff2a393574f87b932e4627591091bf8f2f94d3c8e75715.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Server-Host.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2556	timeout.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1716	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2604	0f07d465b2fb93b367ff2a393574f87b932e4627591091bf8f2f94d3c8e75715.exe
2604	0f07d465b2fb93b367ff2a393574f87b932e4627591091bf8f2f94d3c8e75715.exe
2604	0f07d465b2fb93b367ff2a393574f87b932e4627591091bf8f2f94d3c8e75715.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2604	0f07d465b2fb93b367ff2a393574f87b932e4627591091bf8f2f94d3c8e75715.exe
Token: SeDebugPrivilege	2528	Server-Host.exe
Token: SeDebugPrivilege	2528	Server-Host.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2604 wrote to memory of 2516	2604	0f07d465b2fb93b367ff2a393574f87b932e4627591091bf8f2f94d3c8e75715.exe	31
PID 2604 wrote to memory of 2516	2604	0f07d465b2fb93b367ff2a393574f87b932e4627591091bf8f2f94d3c8e75715.exe	31
PID 2604 wrote to memory of 2516	2604	0f07d465b2fb93b367ff2a393574f87b932e4627591091bf8f2f94d3c8e75715.exe	31
PID 2604 wrote to memory of 2516	2604	0f07d465b2fb93b367ff2a393574f87b932e4627591091bf8f2f94d3c8e75715.exe	31
PID 2604 wrote to memory of 2008	2604	0f07d465b2fb93b367ff2a393574f87b932e4627591091bf8f2f94d3c8e75715.exe	33
PID 2604 wrote to memory of 2008	2604	0f07d465b2fb93b367ff2a393574f87b932e4627591091bf8f2f94d3c8e75715.exe	33
PID 2604 wrote to memory of 2008	2604	0f07d465b2fb93b367ff2a393574f87b932e4627591091bf8f2f94d3c8e75715.exe	33
PID 2604 wrote to memory of 2008	2604	0f07d465b2fb93b367ff2a393574f87b932e4627591091bf8f2f94d3c8e75715.exe	33
PID 2516 wrote to memory of 1716	2516	cmd.exe	35
PID 2516 wrote to memory of 1716	2516	cmd.exe	35
PID 2516 wrote to memory of 1716	2516	cmd.exe	35
PID 2516 wrote to memory of 1716	2516	cmd.exe	35
PID 2008 wrote to memory of 2556	2008	cmd.exe	36
PID 2008 wrote to memory of 2556	2008	cmd.exe	36
PID 2008 wrote to memory of 2556	2008	cmd.exe	36
PID 2008 wrote to memory of 2556	2008	cmd.exe	36
PID 2008 wrote to memory of 2528	2008	cmd.exe	37
PID 2008 wrote to memory of 2528	2008	cmd.exe	37
PID 2008 wrote to memory of 2528	2008	cmd.exe	37
PID 2008 wrote to memory of 2528	2008	cmd.exe	37

C:\Users\Admin\AppData\Local\Temp\0f07d465b2fb93b367ff2a393574f87b932e4627591091bf8f2f94d3c8e75715.exe
"C:\Users\Admin\AppData\Local\Temp\0f07d465b2fb93b367ff2a393574f87b932e4627591091bf8f2f94d3c8e75715.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2604
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "Server-Host" /tr '"C:\Users\Admin\AppData\Roaming\Server-Host.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2516
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "Server-Host" /tr '"C:\Users\Admin\AppData\Roaming\Server-Host.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1716
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp3D3F.tmp.bat""
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2008
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2556
- - C:\Users\Admin\AppData\Roaming\Server-Host.exe
    "C:\Users\Admin\AppData\Roaming\Server-Host.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2528

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp3D3F.tmp.bat

Filesize
155B

MD5
474a39902be5e9324cdf87be59ab1f74

SHA1
2a883591d262f3bc6b35ab9933101a22c661d624

SHA256
c050cae05c7b4d1c7a116a3501ce3f3e7fd3342bcd67bf287b70ac587e070d1c

SHA512
80be4145cc75a9dac593c41b9c539be9f779a765a735fc804b1cb03fad6842bd8e3de5fb86345bf289c1e22fdbfe3cea5bf09c38949871f8831db7baa9882c0f

Download Submit
\Users\Admin\AppData\Roaming\Server-Host.exe

Filesize
45KB

MD5
556407eba4cd85a57fdb6dcdb12e2269

SHA1
d68a0f0831556c4ef3fb3e003385e897a210b751

SHA256
0f07d465b2fb93b367ff2a393574f87b932e4627591091bf8f2f94d3c8e75715

SHA512
d7baa345dac09eb418604a3d6ace4af0a54cb2b5a627967bc9ccdbb5ee5021ef6dd1e042fcc4165aeb5a38f8583af56f99e5472fa1442ee0335cf62e9664c6c0

Download Submit
memory/2528-16-0x0000000000CF0000-0x0000000000D02000-memory.dmp

Filesize
72KB

Download
memory/2604-0-0x000000007416E000-0x000000007416F000-memory.dmp

Filesize
4KB

Download
memory/2604-1-0x0000000000220000-0x0000000000232000-memory.dmp

Filesize
72KB

Download
memory/2604-2-0x0000000074160000-0x000000007484E000-memory.dmp

Filesize
6.9MB

Download
memory/2604-11-0x0000000074160000-0x000000007484E000-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