asyncrat | bac9ce6cb745e8349ea56db911bcf2fbe8b31ddc46ddc9ba672a1f0abb07349c

General

Target

2cef0359a938c8dfe7bd204027a7a110N.exe
Size

62KB
MD5

2cef0359a938c8dfe7bd204027a7a110
SHA1

971899b5479f4cfdf99cffe34f6ede0a61647d3f
SHA256

bac9ce6cb745e8349ea56db911bcf2fbe8b31ddc46ddc9ba672a1f0abb07349c
SHA512

6d7a37f04fa052426e7dd50572477eaff76cdca0a82a34b1d46c765e24bdbfca9e0369fcbd7515500e83cc9ef622182aa4748e0ae76b7853d71ef75077210195
SSDEEP

1536:GuLt+Twip2+ixbb5dBwbabYsgvDSd07EYwCUWNZ:GuLsTwip2+ixbbbeba0BDSySDWNZ

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

127.0.0.1:6606

127.0.0.1:7707

127.0.0.1:8808

127.0.0.1:19942

5.tcp.eu.ngrok.io:6606

5.tcp.eu.ngrok.io:7707

5.tcp.eu.ngrok.io:8808

5.tcp.eu.ngrok.io:19942

Mutex

cbMLkL41f5Ia

Attributes

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

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat
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 5 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	2cef0359a938c8dfe7bd204027a7a110N.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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2904	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
2988	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2560	2cef0359a938c8dfe7bd204027a7a110N.exe
2560	2cef0359a938c8dfe7bd204027a7a110N.exe
2560	2cef0359a938c8dfe7bd204027a7a110N.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2560	2cef0359a938c8dfe7bd204027a7a110N.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2560 wrote to memory of 2428	2560	2cef0359a938c8dfe7bd204027a7a110N.exe	30
PID 2560 wrote to memory of 2428	2560	2cef0359a938c8dfe7bd204027a7a110N.exe	30
PID 2560 wrote to memory of 2428	2560	2cef0359a938c8dfe7bd204027a7a110N.exe	30
PID 2560 wrote to memory of 2428	2560	2cef0359a938c8dfe7bd204027a7a110N.exe	30
PID 2560 wrote to memory of 2868	2560	2cef0359a938c8dfe7bd204027a7a110N.exe	32
PID 2560 wrote to memory of 2868	2560	2cef0359a938c8dfe7bd204027a7a110N.exe	32
PID 2560 wrote to memory of 2868	2560	2cef0359a938c8dfe7bd204027a7a110N.exe	32
PID 2560 wrote to memory of 2868	2560	2cef0359a938c8dfe7bd204027a7a110N.exe	32
PID 2428 wrote to memory of 2988	2428	cmd.exe	34
PID 2428 wrote to memory of 2988	2428	cmd.exe	34
PID 2428 wrote to memory of 2988	2428	cmd.exe	34
PID 2428 wrote to memory of 2988	2428	cmd.exe	34
PID 2868 wrote to memory of 2904	2868	cmd.exe	35
PID 2868 wrote to memory of 2904	2868	cmd.exe	35
PID 2868 wrote to memory of 2904	2868	cmd.exe	35
PID 2868 wrote to memory of 2904	2868	cmd.exe	35

C:\Users\Admin\AppData\Local\Temp\2cef0359a938c8dfe7bd204027a7a110N.exe
"C:\Users\Admin\AppData\Local\Temp\2cef0359a938c8dfe7bd204027a7a110N.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2560
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "sxaslsklcmaös" /tr '"C:\Users\Admin\AppData\Roaming\sxaslsklcmaös.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2428
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "sxaslsklcmaös" /tr '"C:\Users\Admin\AppData\Roaming\sxaslsklcmaös.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2988
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpBB44.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2868
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2904

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\tmpBB44.tmp.bat

Filesize
158B

MD5
ee809d22b3bb3190158c584779fb6059

SHA1
5dd805722d947a850827e377da7d95a8511db366

SHA256
353edb4b505fa68f6c4dadc7d1ab4bed4aeb7759a91574ad620e0cb0c3374857

SHA512
4e9afcb9a4b4fa3ab38626f4d860d3861335d7066a80448ed82d5777a3c2253232bc44b0493649bc2969131e0d7478eeb93a7cdd90e5c544663d0ae176670c49

Download Submit
memory/2560-0-0x0000000074A7E000-0x0000000074A7F000-memory.dmp

Filesize
4KB

Download
memory/2560-1-0x0000000000A80000-0x0000000000A96000-memory.dmp

Filesize
88KB

Download
memory/2560-2-0x0000000074A70000-0x000000007515E000-memory.dmp

Filesize
6.9MB

Download
memory/2560-11-0x0000000074A70000-0x000000007515E000-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