asyncrat | 3264d80b841271f4c5da008feb2b11ba2e5702ad8bed7751d8a53883f75d1738

General

Target

3264d80b841271f4c5da008feb2b11ba2e5702ad8bed7751d8a53883f75d1738.exe
Size

261KB
MD5

9206cb7b2e14f4801a597894a156b8e5
SHA1

c0a84cb768f5848b83fafd0f3b7313a60d0cec9a
SHA256

3264d80b841271f4c5da008feb2b11ba2e5702ad8bed7751d8a53883f75d1738
SHA512

1aabb8ef8b18d49baf39f0fe65b941f7ac02dc6fb2bd4cddc86e1bb889cf745fd7de980bfe96365ccdc0a168fb4424c6edbd724b50f265303dd812a44b1b830a
SSDEEP

6144:vuEat9Zl5bubNNUXeEdQ2BHyaUFRwFCX0hVt:v8lOafLRmFaCmt

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

chela.ddns.net:1177

Mutex

CF6aV8bVJb6I

Attributes

delay
3
install
true
install_file
AyoubHDJ04.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/0x0008000000015f71-13.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2860	AyoubHDJ04.exe

Loads dropped DLL 1 IoCs

pid	Process
1912	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	AyoubHDJ04.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3264d80b841271f4c5da008feb2b11ba2e5702ad8bed7751d8a53883f75d1738.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
2816	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
2828	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2100	3264d80b841271f4c5da008feb2b11ba2e5702ad8bed7751d8a53883f75d1738.exe
2100	3264d80b841271f4c5da008feb2b11ba2e5702ad8bed7751d8a53883f75d1738.exe
2100	3264d80b841271f4c5da008feb2b11ba2e5702ad8bed7751d8a53883f75d1738.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2100	3264d80b841271f4c5da008feb2b11ba2e5702ad8bed7751d8a53883f75d1738.exe
Token: SeDebugPrivilege	2860	AyoubHDJ04.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 2372	2100	3264d80b841271f4c5da008feb2b11ba2e5702ad8bed7751d8a53883f75d1738.exe	31
PID 2100 wrote to memory of 2372	2100	3264d80b841271f4c5da008feb2b11ba2e5702ad8bed7751d8a53883f75d1738.exe	31
PID 2100 wrote to memory of 2372	2100	3264d80b841271f4c5da008feb2b11ba2e5702ad8bed7751d8a53883f75d1738.exe	31
PID 2100 wrote to memory of 2372	2100	3264d80b841271f4c5da008feb2b11ba2e5702ad8bed7751d8a53883f75d1738.exe	31
PID 2100 wrote to memory of 1912	2100	3264d80b841271f4c5da008feb2b11ba2e5702ad8bed7751d8a53883f75d1738.exe	33
PID 2100 wrote to memory of 1912	2100	3264d80b841271f4c5da008feb2b11ba2e5702ad8bed7751d8a53883f75d1738.exe	33
PID 2100 wrote to memory of 1912	2100	3264d80b841271f4c5da008feb2b11ba2e5702ad8bed7751d8a53883f75d1738.exe	33
PID 2100 wrote to memory of 1912	2100	3264d80b841271f4c5da008feb2b11ba2e5702ad8bed7751d8a53883f75d1738.exe	33
PID 2372 wrote to memory of 2828	2372	cmd.exe	35
PID 2372 wrote to memory of 2828	2372	cmd.exe	35
PID 2372 wrote to memory of 2828	2372	cmd.exe	35
PID 2372 wrote to memory of 2828	2372	cmd.exe	35
PID 1912 wrote to memory of 2816	1912	cmd.exe	36
PID 1912 wrote to memory of 2816	1912	cmd.exe	36
PID 1912 wrote to memory of 2816	1912	cmd.exe	36
PID 1912 wrote to memory of 2816	1912	cmd.exe	36
PID 1912 wrote to memory of 2860	1912	cmd.exe	37
PID 1912 wrote to memory of 2860	1912	cmd.exe	37
PID 1912 wrote to memory of 2860	1912	cmd.exe	37
PID 1912 wrote to memory of 2860	1912	cmd.exe	37

C:\Users\Admin\AppData\Local\Temp\3264d80b841271f4c5da008feb2b11ba2e5702ad8bed7751d8a53883f75d1738.exe
"C:\Users\Admin\AppData\Local\Temp\3264d80b841271f4c5da008feb2b11ba2e5702ad8bed7751d8a53883f75d1738.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "AyoubHDJ04" /tr '"C:\Users\Admin\AppData\Roaming\AyoubHDJ04.exe"' & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2372
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "AyoubHDJ04" /tr '"C:\Users\Admin\AppData\Roaming\AyoubHDJ04.exe"'
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2828
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpAF33.tmp.bat""
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1912
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2816
- - C:\Users\Admin\AppData\Roaming\AyoubHDJ04.exe
    "C:\Users\Admin\AppData\Roaming\AyoubHDJ04.exe"
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    PID:2860

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\tmpAF33.tmp.bat

Filesize
154B

MD5
b423cef67b06f3131f8351ce03ccc52a

SHA1
b90808c38d2f96fe22b14de34cd7f817627961e2

SHA256
ee96dd7fbc3e362571bbbd80b400d2fe44217c6af567ecf41209a5c054e5ad9f

SHA512
042ab4eb84ccfdb2300ad3394f849eaf9d169acaa7af3c636a2ac8f89b84763ff93428bce04db70461623f7620639c2b7a9bb239bad19039bb00d8984ed656b0

Download Submit
\Users\Admin\AppData\Roaming\AyoubHDJ04.exe

Filesize
261KB

MD5
9206cb7b2e14f4801a597894a156b8e5

SHA1
c0a84cb768f5848b83fafd0f3b7313a60d0cec9a

SHA256
3264d80b841271f4c5da008feb2b11ba2e5702ad8bed7751d8a53883f75d1738

SHA512
1aabb8ef8b18d49baf39f0fe65b941f7ac02dc6fb2bd4cddc86e1bb889cf745fd7de980bfe96365ccdc0a168fb4424c6edbd724b50f265303dd812a44b1b830a

Download Submit
memory/2100-0-0x0000000074B2E000-0x0000000074B2F000-memory.dmp

Filesize
4KB

Download
memory/2100-1-0x0000000000360000-0x00000000003A6000-memory.dmp

Filesize
280KB

Download
memory/2100-2-0x0000000074B20000-0x000000007520E000-memory.dmp

Filesize
6.9MB

Download
memory/2100-11-0x0000000074B20000-0x000000007520E000-memory.dmp

Filesize
6.9MB

Download
memory/2860-16-0x0000000000200000-0x0000000000246000-memory.dmp

Filesize
280KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads