asyncrat | c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc

General

Target
c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc.exe
Size 45KB
Sample260702-s8dpgag18s
SHA256 c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc
MD5 27fb708d126a415ddd99f3b6c300ae3a
SHA1 a1f061f27491d4e4b535cb99bd95a6e07980a63e
SHA512 971142b5f983322b0f41067f98111ca385fb59d77f5b4a680e3cd46afd533b2a314fbf0a63a2323481d630b9a32e961b9b4490eb278d144cb849c0e184d4710a
SSDEEP 768:MuBGJTP0BQ0UWUWHaimo2qVufkLyuObvtkjZPIuzjbngXuitYP5TFqq6UcgyBDZG:MuBGJTPho2HfLuyyjWu3bgXXtg5TFH62
TLSH
T1D0231A0037E9812BF2BE4F78A8F26145867AF6736603D54E1C8451DB5723FC68A426FE
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

default defense_evasion discovery execution asyncrat persistence rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

vida-nova-design.com:80
vida-nova-design.com:22
vida-nova-design.com:8080
vida-nova-design.com:8880
vida-nova-design.com:2052
vida-nova-design.com:2082
vida-nova-design.com:2086
vida-nova-design.com:2095
vida-nova-design.com:443
vida-nova-design.com:2053
vida-nova-design.com:2083
vida-nova-design.com:2087
vida-nova-design.com:2096
vida-nova-design.com:8443
www.vida-nova-design.com:80
www.vida-nova-design.com:22
www.vida-nova-design.com:8080
www.vida-nova-design.com:8880
www.vida-nova-design.com:2052
www.vida-nova-design.com:2082
www.vida-nova-design.com:2086
www.vida-nova-design.com:2095
www.vida-nova-design.com:443
www.vida-nova-design.com:2053
www.vida-nova-design.com:2083
www.vida-nova-design.com:2087
www.vida-nova-design.com:2096
www.vida-nova-design.com:8443
formbook.vida-nova-design.com:80
formbook.vida-nova-design.com:22
formbook.vida-nova-design.com:8080
formbook.vida-nova-design.com:8880
formbook.vida-nova-design.com:2052
formbook.vida-nova-design.com:2082
formbook.vida-nova-design.com:2086
formbook.vida-nova-design.com:2095
formbook.vida-nova-design.com:443
formbook.vida-nova-design.com:2053
formbook.vida-nova-design.com:2083
formbook.vida-nova-design.com:2087
formbook.vida-nova-design.com:2096
formbook.vida-nova-design.com:8443
malware.vida-nova-design.com:80
malware.vida-nova-design.com:22
malware.vida-nova-design.com:8080
malware.vida-nova-design.com:8880
malware.vida-nova-design.com:2052
malware.vida-nova-design.com:2082
malware.vida-nova-design.com:2086
malware.vida-nova-design.com:2095
malware.vida-nova-design.com:443
malware.vida-nova-design.com:2053
malware.vida-nova-design.com:2083
malware.vida-nova-design.com:2087
malware.vida-nova-design.com:2096
malware.vida-nova-design.com:8443

Mutex

v6YFbn7vgGYZ

Attributes

delay
0
install
true
install_file
aw2q.exe
install_folder
%AppData%

aes.plain

Signatures

Family: 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/0x000800000002461e-8.dat	family_asyncrat

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1074038928-2032447174-945360078-1000\Control Panel\International\Geo\Nation	c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc.exe

Executes dropped EXE 2 IoCs

pid	Process
1204	aw2q.exe
2708	aw2q.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 7 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	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	aw2q.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aw2q.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
2408	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
2196	schtasks.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
4332	c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc.exe
4332	c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc.exe
4332	c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc.exe
4332	c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc.exe
4332	c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc.exe
4332	c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc.exe
4332	c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc.exe
4332	c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc.exe
4332	c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc.exe
4332	c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc.exe
4332	c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc.exe
4332	c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc.exe
4332	c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc.exe
4332	c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc.exe
4332	c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc.exe
4332	c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc.exe
4332	c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc.exe
4332	c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc.exe
4332	c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc.exe
4332	c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc.exe
4332	c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc.exe
4332	c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc.exe
4332	c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4332	c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc.exe
Token: SeDebugPrivilege	1204	aw2q.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 4332 wrote to memory of 1628	4332	c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc.exe	85
PID 4332 wrote to memory of 2332	4332	c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc.exe	87
PID 1628 wrote to memory of 2196	1628	cmd.exe	89
PID 2332 wrote to memory of 2408	2332	cmd.exe	90
PID 2332 wrote to memory of 2708	2332	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc.exe
"C:\Users\Admin\AppData\Local\Temp\c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4332
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "aw2q" /tr '"C:\Users\Admin\AppData\Roaming\aw2q.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1628
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "aw2q" /tr '"C:\Users\Admin\AppData\Roaming\aw2q.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2196
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8B53.tmp.bat""
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2332
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2408
- - C:\Users\Admin\AppData\Roaming\aw2q.exe
    "C:\Users\Admin\AppData\Roaming\aw2q.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2708

C:\Users\Admin\AppData\Roaming\aw2q.exe
"C:\Users\Admin\AppData\Roaming\aw2q.exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
PID:1204

Network

MITRE ATT&CK Enterprise v16

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

Query Registry

1

T1012

System Information Discovery

2

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

tmp8B53.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp8B53.tmp.bat
Size 148B
SHA256 269b58fc1db0c5f2e89b34b60f6c2b23db2a4e7c865610120560a9022e8c9bf1
MD5 78c84c447380933565b45ad8448e3192
SHA1 ad80b6f2e747640a3b88be3a4bfc531ab7db326c
SHA512 b94a48ac6fb397c62f0bda7f25cb745e733cebdbddcde2d55dc2c15c78a94c8cc3b887bdfe87525aecc8f43fcb0c47007b067832bf89ca9b01834aa40befc4ed
TLSH
T104C08C8259C5AA1E6905A42326FA948DA1626DA93E80AB008304411A1381469E0D9245
MD5 SHA1 SHA512 TLSH

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aw2q.exe

Path C:\Users\Admin\AppData\Roaming\aw2q.exe
Size 45KB
SHA256 c21a9c8ea6f7528b882cc9dbf10560544f2d39dc07c279cbbf81de16aa1aaadc
MD5 27fb708d126a415ddd99f3b6c300ae3a
SHA1 a1f061f27491d4e4b535cb99bd95a6e07980a63e
SHA512 971142b5f983322b0f41067f98111ca385fb59d77f5b4a680e3cd46afd533b2a314fbf0a63a2323481d630b9a32e961b9b4490eb278d144cb849c0e184d4710a
SSDEEP 768:MuBGJTP0BQ0UWUWHaimo2qVufkLyuObvtkjZPIuzjbngXuitYP5TFqq6UcgyBDZG:MuBGJTPho2HfLuyyjWu3bgXXtg5TFH62
TLSH
T1D0231A0037E9812BF2BE4F78A8F26145867AF6736603D54E1C8451DB5723FC68A426FE
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1204-10-0x00000000053E0000-0x00000000053F0000-memory.dmp

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memory/1204-13-0x00000000053E0000-0x00000000053F0000-memory.dmp

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memory/4332-0-0x0000000000EC0000-0x0000000000ED2000-memory.dmp

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memory/4332-1-0x0000000005840000-0x0000000005850000-memory.dmp

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memory/4332-2-0x00000000058F0000-0x000000000598C000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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