asyncrat | 0fbc9522bea75aaa0af04e252a09206170b17ff4811a930fe2a0c812a48c2382

General

Target

0fbc9522bea75aaa0af04e252a09206170b17ff4811a930fe2a0c812a48c2382.exe
Size

48KB
MD5

e48fe350eb0aeb4cedafd2c9ae689c96
SHA1

d0fb07d47835b00d21d258dbcc0e673d1c1ae861
SHA256

0fbc9522bea75aaa0af04e252a09206170b17ff4811a930fe2a0c812a48c2382
SHA512

a9f5b762f7688ea06a72475beeb61b3bbc6d726122e470f6a6370c1c3c4fea4e85d5fc697843eb745ca5f079f0103a2500af9b669c886143d514631165c032b3
SSDEEP

768:OuUjVTwkbBHWU72ZcFmo2qj7bYZC25vPIk9vOfk0bmu1mF8hS+0FO2eefEBDZJS7:OuUjVTwA4M2vZC+ok4fHbm2S8hS+UfyG

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

Mutex

9GqQYIlq5eZK

Attributes

delay
3
install
true
install_file
CheckerAVT.exe
install_folder
%AppData%
pastebin_config
https://pastebin.com/raw/63vbbiAr

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/0x0007000000012101-13.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
860	CheckerAVT.exe

Loads dropped DLL 1 IoCs

pid	Process
2564	cmd.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs

Web Service

T1102

flow	ioc
4	pastebin.com
5	pastebin.com

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	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	CheckerAVT.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0fbc9522bea75aaa0af04e252a09206170b17ff4811a930fe2a0c812a48c2382.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
2968	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
2324	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2736	0fbc9522bea75aaa0af04e252a09206170b17ff4811a930fe2a0c812a48c2382.exe
2736	0fbc9522bea75aaa0af04e252a09206170b17ff4811a930fe2a0c812a48c2382.exe
2736	0fbc9522bea75aaa0af04e252a09206170b17ff4811a930fe2a0c812a48c2382.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2736	0fbc9522bea75aaa0af04e252a09206170b17ff4811a930fe2a0c812a48c2382.exe
Token: SeDebugPrivilege	860	CheckerAVT.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2736 wrote to memory of 2804	2736	0fbc9522bea75aaa0af04e252a09206170b17ff4811a930fe2a0c812a48c2382.exe	31
PID 2736 wrote to memory of 2804	2736	0fbc9522bea75aaa0af04e252a09206170b17ff4811a930fe2a0c812a48c2382.exe	31
PID 2736 wrote to memory of 2804	2736	0fbc9522bea75aaa0af04e252a09206170b17ff4811a930fe2a0c812a48c2382.exe	31
PID 2736 wrote to memory of 2804	2736	0fbc9522bea75aaa0af04e252a09206170b17ff4811a930fe2a0c812a48c2382.exe	31
PID 2736 wrote to memory of 2564	2736	0fbc9522bea75aaa0af04e252a09206170b17ff4811a930fe2a0c812a48c2382.exe	33
PID 2736 wrote to memory of 2564	2736	0fbc9522bea75aaa0af04e252a09206170b17ff4811a930fe2a0c812a48c2382.exe	33
PID 2736 wrote to memory of 2564	2736	0fbc9522bea75aaa0af04e252a09206170b17ff4811a930fe2a0c812a48c2382.exe	33
PID 2736 wrote to memory of 2564	2736	0fbc9522bea75aaa0af04e252a09206170b17ff4811a930fe2a0c812a48c2382.exe	33
PID 2804 wrote to memory of 2324	2804	cmd.exe	35
PID 2804 wrote to memory of 2324	2804	cmd.exe	35
PID 2804 wrote to memory of 2324	2804	cmd.exe	35
PID 2804 wrote to memory of 2324	2804	cmd.exe	35
PID 2564 wrote to memory of 2968	2564	cmd.exe	36
PID 2564 wrote to memory of 2968	2564	cmd.exe	36
PID 2564 wrote to memory of 2968	2564	cmd.exe	36
PID 2564 wrote to memory of 2968	2564	cmd.exe	36
PID 2564 wrote to memory of 860	2564	cmd.exe	37
PID 2564 wrote to memory of 860	2564	cmd.exe	37
PID 2564 wrote to memory of 860	2564	cmd.exe	37
PID 2564 wrote to memory of 860	2564	cmd.exe	37

C:\Users\Admin\AppData\Local\Temp\0fbc9522bea75aaa0af04e252a09206170b17ff4811a930fe2a0c812a48c2382.exe
"C:\Users\Admin\AppData\Local\Temp\0fbc9522bea75aaa0af04e252a09206170b17ff4811a930fe2a0c812a48c2382.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2736
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "CheckerAVT" /tr '"C:\Users\Admin\AppData\Roaming\CheckerAVT.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2804
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "CheckerAVT" /tr '"C:\Users\Admin\AppData\Roaming\CheckerAVT.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2324
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp12B6.tmp.bat""
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2564
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2968
- - C:\Users\Admin\AppData\Roaming\CheckerAVT.exe
    "C:\Users\Admin\AppData\Roaming\CheckerAVT.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:860

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

Web Service

1

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp12B6.tmp.bat

Filesize
154B

MD5
81f2ffbabd22798c63afe00277e9f9c7

SHA1
8b8a106164c9499a9688a611822a40c9501a3f77

SHA256
c7cda5b47bdf5cda351b3af24a77d9d9e26f013547ca4805a9e33ee09bf76144

SHA512
de6d80b2deb59a7e03629fe0e673ccda358fa946ada1ec5b157c747655162183fb630f1a80b584c6b14da8968ad1a870d129a804f170232d358db7ce7e07f3fe

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

Filesize
48KB

MD5
e48fe350eb0aeb4cedafd2c9ae689c96

SHA1
d0fb07d47835b00d21d258dbcc0e673d1c1ae861

SHA256
0fbc9522bea75aaa0af04e252a09206170b17ff4811a930fe2a0c812a48c2382

SHA512
a9f5b762f7688ea06a72475beeb61b3bbc6d726122e470f6a6370c1c3c4fea4e85d5fc697843eb745ca5f079f0103a2500af9b669c886143d514631165c032b3

Download Submit
memory/860-16-0x00000000000C0000-0x00000000000D2000-memory.dmp

Filesize
72KB

Download
memory/2736-0-0x000000007465E000-0x000000007465F000-memory.dmp

Filesize
4KB

Download
memory/2736-1-0x0000000001020000-0x0000000001032000-memory.dmp

Filesize
72KB

Download
memory/2736-2-0x0000000074650000-0x0000000074D3E000-memory.dmp

Filesize
6.9MB

Download
memory/2736-12-0x0000000074650000-0x0000000074D3E000-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