asyncrat | 2a465e1cff39d36c45dc0f9b28440411187ebe843e9311e2820804942d72e201

General

Target

2a465e1cff39d36c45dc0f9b28440411187ebe843e9311e2820804942d72e201.exe
Size

45KB
MD5

94eb371cf65dc29a53fcf3bc0173b35e
SHA1

ad4ddf8884c805f86ec09063cf6653ec012ae941
SHA256

2a465e1cff39d36c45dc0f9b28440411187ebe843e9311e2820804942d72e201
SHA512

c6fba4eea2e88dd34390ac8b9a38578e0b83731fb6ef8a551fa4d1489cbc64bb3eab6c9dc7c3a7872c9e595b8d016898f25a5f3e1e3bc1ceca8019816f5f6248
SSDEEP

768:8u6cdTAYhbJWUh9Nzmo2qLfKjPGagAWOzjbFgX3i6BwXytKe+CANqlcDZ2j+:8u6cdTAur2yKTKTO3bCXS6Bw+z+7Fd2S

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

45.147.46.188:1604

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
true
install_file
abd.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

Processes:

resource	yara_rule
behavioral1/files/0x0008000000017474-13.dat	family_asyncrat

Executes dropped EXE 1 IoCs

Processes:

abd.exe

pid	Process
2888	abd.exe

Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid	Process
1720	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

Processes:

2a465e1cff39d36c45dc0f9b28440411187ebe843e9311e2820804942d72e201.execmd.execmd.exeschtasks.exetimeout.exeabd.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2a465e1cff39d36c45dc0f9b28440411187ebe843e9311e2820804942d72e201.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	abd.exe

Delays execution with timeout.exe 1 IoCs

evasion

Processes:

timeout.exe

pid	Process
1668	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

Processes:

schtasks.exe

pid	Process
2340	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

2a465e1cff39d36c45dc0f9b28440411187ebe843e9311e2820804942d72e201.exe

pid	Process
2104	2a465e1cff39d36c45dc0f9b28440411187ebe843e9311e2820804942d72e201.exe
2104	2a465e1cff39d36c45dc0f9b28440411187ebe843e9311e2820804942d72e201.exe
2104	2a465e1cff39d36c45dc0f9b28440411187ebe843e9311e2820804942d72e201.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

2a465e1cff39d36c45dc0f9b28440411187ebe843e9311e2820804942d72e201.exeabd.exe

description	pid	Process
Token: SeDebugPrivilege	2104	2a465e1cff39d36c45dc0f9b28440411187ebe843e9311e2820804942d72e201.exe
Token: SeDebugPrivilege	2888	abd.exe

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

2a465e1cff39d36c45dc0f9b28440411187ebe843e9311e2820804942d72e201.execmd.execmd.exe

description	pid	Process	procid_target
PID 2104 wrote to memory of 2384	2104	2a465e1cff39d36c45dc0f9b28440411187ebe843e9311e2820804942d72e201.exe	31
PID 2104 wrote to memory of 2384	2104	2a465e1cff39d36c45dc0f9b28440411187ebe843e9311e2820804942d72e201.exe	31
PID 2104 wrote to memory of 2384	2104	2a465e1cff39d36c45dc0f9b28440411187ebe843e9311e2820804942d72e201.exe	31
PID 2104 wrote to memory of 2384	2104	2a465e1cff39d36c45dc0f9b28440411187ebe843e9311e2820804942d72e201.exe	31
PID 2104 wrote to memory of 1720	2104	2a465e1cff39d36c45dc0f9b28440411187ebe843e9311e2820804942d72e201.exe	33
PID 2104 wrote to memory of 1720	2104	2a465e1cff39d36c45dc0f9b28440411187ebe843e9311e2820804942d72e201.exe	33
PID 2104 wrote to memory of 1720	2104	2a465e1cff39d36c45dc0f9b28440411187ebe843e9311e2820804942d72e201.exe	33
PID 2104 wrote to memory of 1720	2104	2a465e1cff39d36c45dc0f9b28440411187ebe843e9311e2820804942d72e201.exe	33
PID 2384 wrote to memory of 2340	2384	cmd.exe	35
PID 2384 wrote to memory of 2340	2384	cmd.exe	35
PID 2384 wrote to memory of 2340	2384	cmd.exe	35
PID 2384 wrote to memory of 2340	2384	cmd.exe	35
PID 1720 wrote to memory of 1668	1720	cmd.exe	36
PID 1720 wrote to memory of 1668	1720	cmd.exe	36
PID 1720 wrote to memory of 1668	1720	cmd.exe	36
PID 1720 wrote to memory of 1668	1720	cmd.exe	36
PID 1720 wrote to memory of 2888	1720	cmd.exe	37
PID 1720 wrote to memory of 2888	1720	cmd.exe	37
PID 1720 wrote to memory of 2888	1720	cmd.exe	37
PID 1720 wrote to memory of 2888	1720	cmd.exe	37

C:\Users\Admin\AppData\Local\Temp\2a465e1cff39d36c45dc0f9b28440411187ebe843e9311e2820804942d72e201.exe
"C:\Users\Admin\AppData\Local\Temp\2a465e1cff39d36c45dc0f9b28440411187ebe843e9311e2820804942d72e201.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2104
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "abd" /tr '"C:\Users\Admin\AppData\Roaming\abd.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2384
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "abd" /tr '"C:\Users\Admin\AppData\Roaming\abd.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2340
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpD568.tmp.bat""
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1720
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:1668
- - C:\Users\Admin\AppData\Roaming\abd.exe
    "C:\Users\Admin\AppData\Roaming\abd.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2888

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\tmpD568.tmp.bat

Filesize
147B

MD5
09972a3fedbe9f68cadfc6caff3b8843

SHA1
86f7367485bffbf510f4d6f56eaf1a23812fec79

SHA256
00ac1c254cc04921f26e0be9d3cfc392c3ae59653108ae2f3db330338a361c71

SHA512
d075eda810de17c3888d47cccc94f52ef189048eeab19fcca35ec69c49eab3df56cf0a63713672617b6035fc919b6bd110f2d6e1d9e41ceb55f14159bc684bfc

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

Filesize
45KB

MD5
94eb371cf65dc29a53fcf3bc0173b35e

SHA1
ad4ddf8884c805f86ec09063cf6653ec012ae941

SHA256
2a465e1cff39d36c45dc0f9b28440411187ebe843e9311e2820804942d72e201

SHA512
c6fba4eea2e88dd34390ac8b9a38578e0b83731fb6ef8a551fa4d1489cbc64bb3eab6c9dc7c3a7872c9e595b8d016898f25a5f3e1e3bc1ceca8019816f5f6248

Download Submit
memory/2104-0-0x000000007479E000-0x000000007479F000-memory.dmp

Filesize
4KB

Download
memory/2104-1-0x0000000000800000-0x0000000000812000-memory.dmp

Filesize
72KB

Download
memory/2104-2-0x0000000074790000-0x0000000074E7E000-memory.dmp

Filesize
6.9MB

Download
memory/2104-11-0x0000000074790000-0x0000000074E7E000-memory.dmp

Filesize
6.9MB

Download
memory/2888-16-0x0000000000AC0000-0x0000000000AD2000-memory.dmp

Filesize
72KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads