asyncrat | 2432d3c26f9cc527403a4fc1f6a7d8a9e8646cc220660fa408cf8613de7b7001

General

Target

2432d3c26f9cc527403a4fc1f6a7d8a9e8646cc220660fa408cf8613de7b7001.exe
Size

48KB
MD5

cf34ddd4811d4dc055b8d5cd133af1fc
SHA1

cdb3c5623ed5c9732b1d49a43e61873d86ea87b3
SHA256

2432d3c26f9cc527403a4fc1f6a7d8a9e8646cc220660fa408cf8613de7b7001
SHA512

2537eff86dcf84862257e90631192c3b2af4077e54343143a1ada14c40c37a31492877f33ffc12b0505eede1972f4fb986d4e672b53397a96e447b281f17db8b
SSDEEP

768:SuwpFTAY3IQWUe9jqmo2qLEhVDBNwGqrFPIuY29RzTw0bPb9s4RVy5zPCAuBDZog:SuwpFTA4/2/DYGLuY2LbPps4OtC/dog

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

mtf.wiki:6606

mtf.wiki:7707

mtf.wiki:8808

Mutex

5fMCOVMxE37C

Attributes

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

aes.plain

Signatures

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

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral1/files/0x0008000000012102-13.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2556	mtfwiki.exe

Loads dropped DLL 1 IoCs

pid	Process
2580	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	timeout.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mtfwiki.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2432d3c26f9cc527403a4fc1f6a7d8a9e8646cc220660fa408cf8613de7b7001.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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2680	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
2108	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2692	2432d3c26f9cc527403a4fc1f6a7d8a9e8646cc220660fa408cf8613de7b7001.exe
2692	2432d3c26f9cc527403a4fc1f6a7d8a9e8646cc220660fa408cf8613de7b7001.exe
2692	2432d3c26f9cc527403a4fc1f6a7d8a9e8646cc220660fa408cf8613de7b7001.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2692	2432d3c26f9cc527403a4fc1f6a7d8a9e8646cc220660fa408cf8613de7b7001.exe
Token: SeDebugPrivilege	2556	mtfwiki.exe
Token: SeDebugPrivilege	2556	mtfwiki.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2692 wrote to memory of 2676	2692	2432d3c26f9cc527403a4fc1f6a7d8a9e8646cc220660fa408cf8613de7b7001.exe	31
PID 2692 wrote to memory of 2676	2692	2432d3c26f9cc527403a4fc1f6a7d8a9e8646cc220660fa408cf8613de7b7001.exe	31
PID 2692 wrote to memory of 2676	2692	2432d3c26f9cc527403a4fc1f6a7d8a9e8646cc220660fa408cf8613de7b7001.exe	31
PID 2692 wrote to memory of 2676	2692	2432d3c26f9cc527403a4fc1f6a7d8a9e8646cc220660fa408cf8613de7b7001.exe	31
PID 2692 wrote to memory of 2580	2692	2432d3c26f9cc527403a4fc1f6a7d8a9e8646cc220660fa408cf8613de7b7001.exe	33
PID 2692 wrote to memory of 2580	2692	2432d3c26f9cc527403a4fc1f6a7d8a9e8646cc220660fa408cf8613de7b7001.exe	33
PID 2692 wrote to memory of 2580	2692	2432d3c26f9cc527403a4fc1f6a7d8a9e8646cc220660fa408cf8613de7b7001.exe	33
PID 2692 wrote to memory of 2580	2692	2432d3c26f9cc527403a4fc1f6a7d8a9e8646cc220660fa408cf8613de7b7001.exe	33
PID 2676 wrote to memory of 2108	2676	cmd.exe	35
PID 2676 wrote to memory of 2108	2676	cmd.exe	35
PID 2676 wrote to memory of 2108	2676	cmd.exe	35
PID 2676 wrote to memory of 2108	2676	cmd.exe	35
PID 2580 wrote to memory of 2680	2580	cmd.exe	36
PID 2580 wrote to memory of 2680	2580	cmd.exe	36
PID 2580 wrote to memory of 2680	2580	cmd.exe	36
PID 2580 wrote to memory of 2680	2580	cmd.exe	36
PID 2580 wrote to memory of 2556	2580	cmd.exe	37
PID 2580 wrote to memory of 2556	2580	cmd.exe	37
PID 2580 wrote to memory of 2556	2580	cmd.exe	37
PID 2580 wrote to memory of 2556	2580	cmd.exe	37

C:\Users\Admin\AppData\Local\Temp\2432d3c26f9cc527403a4fc1f6a7d8a9e8646cc220660fa408cf8613de7b7001.exe
"C:\Users\Admin\AppData\Local\Temp\2432d3c26f9cc527403a4fc1f6a7d8a9e8646cc220660fa408cf8613de7b7001.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2692
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "mtfwiki" /tr '"C:\Users\Admin\AppData\Roaming\mtfwiki.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2676
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "mtfwiki" /tr '"C:\Users\Admin\AppData\Roaming\mtfwiki.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2108
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpFAA4.tmp.bat""
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2580
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2680
- - C:\Users\Admin\AppData\Roaming\mtfwiki.exe
    "C:\Users\Admin\AppData\Roaming\mtfwiki.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2556

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\tmpFAA4.tmp.bat

Filesize
151B

MD5
088eccb3163924eb955161efe9b51921

SHA1
3834cc26e45305faaadd90e35d6abf1c2bdef129

SHA256
94ac18b07cafddc69971cdda9d0d74faf9a2e4efebdf6769af6e972f332354e6

SHA512
0ab0417c6aadbda59014a81ea85ad462d1a97896985e1b68ab2206f75c01cd379425fd165833ffe7b67d46ff9e49ec4a78b4b334f3c0e103a629302c4effa821

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

Filesize
48KB

MD5
cf34ddd4811d4dc055b8d5cd133af1fc

SHA1
cdb3c5623ed5c9732b1d49a43e61873d86ea87b3

SHA256
2432d3c26f9cc527403a4fc1f6a7d8a9e8646cc220660fa408cf8613de7b7001

SHA512
2537eff86dcf84862257e90631192c3b2af4077e54343143a1ada14c40c37a31492877f33ffc12b0505eede1972f4fb986d4e672b53397a96e447b281f17db8b

Download Submit
memory/2556-16-0x00000000012D0000-0x00000000012E2000-memory.dmp

Filesize
72KB

Download
memory/2692-0-0x00000000748EE000-0x00000000748EF000-memory.dmp

Filesize
4KB

Download
memory/2692-1-0x0000000000980000-0x0000000000992000-memory.dmp

Filesize
72KB

Download
memory/2692-2-0x00000000748E0000-0x0000000074FCE000-memory.dmp

Filesize
6.9MB

Download
memory/2692-11-0x00000000748E0000-0x0000000074FCE000-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