Malware Analysis Report

2024-10-23 19:28

Sample ID 240629-b2ngna1dkn
Target 9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe
SHA256 9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a
Tags
rat default asyncrat
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a

Threat Level: Known bad

The file 9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe was found to be: Known bad.

Malicious Activity Summary

rat default asyncrat

Asyncrat family

Async RAT payload

Detects executables attemping to enumerate video devices using WMI

AsyncRat

Async RAT payload

Detects executables attemping to enumerate video devices using WMI

Checks computer location settings

Executes dropped EXE

Enumerates physical storage devices

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Delays execution with timeout.exe

Scheduled Task/Job: Scheduled Task

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Uses Task Scheduler COM API

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-29 01:38

Signatures

Async RAT payload

rat
Description Indicator Process Target
N/A N/A N/A N/A

Asyncrat family

asyncrat

Detects executables attemping to enumerate video devices using WMI

Description Indicator Process Target
N/A N/A N/A N/A

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-29 01:38

Reported

2024-06-29 01:41

Platform

win7-20240611-en

Max time kernel

129s

Max time network

143s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe"

Signatures

AsyncRat

rat asyncrat

Async RAT payload

rat
Description Indicator Process Target
N/A N/A N/A N/A

Detects executables attemping to enumerate video devices using WMI

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\task.exe N/A

Enumerates physical storage devices

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\system32\timeout.exe N/A

Scheduled Task/Job: Scheduled Task

persistence execution
Description Indicator Process Target
N/A N/A C:\Windows\system32\schtasks.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\task.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\task.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1704 wrote to memory of 3052 N/A C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe C:\Windows\System32\cmd.exe
PID 1704 wrote to memory of 3052 N/A C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe C:\Windows\System32\cmd.exe
PID 1704 wrote to memory of 3052 N/A C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe C:\Windows\System32\cmd.exe
PID 1704 wrote to memory of 3012 N/A C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe C:\Windows\system32\cmd.exe
PID 1704 wrote to memory of 3012 N/A C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe C:\Windows\system32\cmd.exe
PID 1704 wrote to memory of 3012 N/A C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe C:\Windows\system32\cmd.exe
PID 3012 wrote to memory of 2584 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\timeout.exe
PID 3012 wrote to memory of 2584 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\timeout.exe
PID 3012 wrote to memory of 2584 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\timeout.exe
PID 3052 wrote to memory of 2612 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\schtasks.exe
PID 3052 wrote to memory of 2612 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\schtasks.exe
PID 3052 wrote to memory of 2612 N/A C:\Windows\System32\cmd.exe C:\Windows\system32\schtasks.exe
PID 3012 wrote to memory of 2608 N/A C:\Windows\system32\cmd.exe C:\Users\Admin\AppData\Roaming\task.exe
PID 3012 wrote to memory of 2608 N/A C:\Windows\system32\cmd.exe C:\Users\Admin\AppData\Roaming\task.exe
PID 3012 wrote to memory of 2608 N/A C:\Windows\system32\cmd.exe C:\Users\Admin\AppData\Roaming\task.exe

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe

"C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe"

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "task" /tr '"C:\Users\Admin\AppData\Roaming\task.exe"' & exit

C:\Windows\system32\cmd.exe

cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp84AA.tmp.bat""

C:\Windows\system32\timeout.exe

timeout 3

C:\Windows\system32\schtasks.exe

schtasks /create /f /sc onlogon /rl highest /tn "task" /tr '"C:\Users\Admin\AppData\Roaming\task.exe"'

C:\Users\Admin\AppData\Roaming\task.exe

"C:\Users\Admin\AppData\Roaming\task.exe"

Network

Country Destination Domain Proto
NL 91.92.246.193:4444 tcp
NL 91.92.246.193:4444 tcp
NL 91.92.246.193:4444 tcp
NL 91.92.246.193:4444 tcp
NL 91.92.246.193:4444 tcp
NL 91.92.246.193:4444 tcp

Files

memory/1704-0-0x000007FEF5F03000-0x000007FEF5F04000-memory.dmp

memory/1704-1-0x0000000000A10000-0x0000000000A28000-memory.dmp

memory/1704-3-0x000007FEF5F00000-0x000007FEF68EC000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp84AA.tmp.bat

MD5 05a705a6cb2d82b2341ec601f3ae79cb
SHA1 8ee4108b841b0ed4745de6fedb0ddefa376951dc
SHA256 3527d9d55c0f7649b12a60c7c0d8e79ee653e058ea403816bcdb11bd20395b7c
SHA512 0a32760e6c6fc7d50d2049c71ae501555bcbc430e1b2a5c00bc9e6986cb5f78f621d35933d080b2a79b5ac083e664512e4a5880122da8c4261dbd724774618a0

memory/1704-13-0x000007FEF5F00000-0x000007FEF68EC000-memory.dmp

memory/1704-14-0x000007FEF5F00000-0x000007FEF68EC000-memory.dmp

C:\Users\Admin\AppData\Roaming\task.exe

MD5 76e8d35fe35dce2fb65d0e2fb1be067c
SHA1 543ae7d1f3288b6439f50a7a6c50dacf02d13af4
SHA256 9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a
SHA512 d1a406fb8862577e0ba9ed1404b7568fcf519e8a39bc966e9ea58922bb2eb34bdd7275f9f3c6688b77d3604427a21973484d0b15a9cb4c992f61b17a2d775f02

memory/2608-18-0x0000000000DE0000-0x0000000000DF8000-memory.dmp

C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf

MD5 cf759e4c5f14fe3eec41b87ed756cea8
SHA1 c27c796bb3c2fac929359563676f4ba1ffada1f5
SHA256 c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761
SHA512 c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-29 01:38

Reported

2024-06-29 01:41

Platform

win10v2004-20240611-en

Max time kernel

150s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe"

Signatures

AsyncRat

rat asyncrat

Async RAT payload

rat
Description Indicator Process Target
N/A N/A N/A N/A

Detects executables attemping to enumerate video devices using WMI

Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\task.exe N/A

Enumerates physical storage devices

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\system32\timeout.exe N/A

Scheduled Task/Job: Scheduled Task

persistence execution
Description Indicator Process Target
N/A N/A C:\Windows\system32\schtasks.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\task.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\task.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\task.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\task.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\task.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\task.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\task.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\task.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\task.exe N/A

Uses Task Scheduler COM API

persistence

Processes

C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe

"C:\Users\Admin\AppData\Local\Temp\9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a.exe"

C:\Windows\System32\cmd.exe

"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "task" /tr '"C:\Users\Admin\AppData\Roaming\task.exe"' & exit

C:\Windows\system32\cmd.exe

C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp4371.tmp.bat""

C:\Windows\system32\timeout.exe

timeout 3

C:\Windows\system32\schtasks.exe

schtasks /create /f /sc onlogon /rl highest /tn "task" /tr '"C:\Users\Admin\AppData\Roaming\task.exe"'

C:\Users\Admin\AppData\Roaming\task.exe

"C:\Users\Admin\AppData\Roaming\task.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
BE 23.41.178.65:443 www.bing.com tcp
US 8.8.8.8:53 80.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 65.178.41.23.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
NL 91.92.246.193:4444 tcp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
NL 91.92.246.193:4444 tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
NL 91.92.246.193:4444 tcp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
NL 91.92.246.193:4444 tcp
US 8.8.8.8:53 23.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 10.27.171.150.in-addr.arpa udp
NL 91.92.246.193:4444 tcp
NL 91.92.246.193:4444 tcp
US 8.8.8.8:53 18.173.189.20.in-addr.arpa udp

Files

memory/4012-0-0x00007FF93ADA3000-0x00007FF93ADA5000-memory.dmp

memory/4012-1-0x0000000000160000-0x0000000000178000-memory.dmp

memory/4012-3-0x00007FF93ADA0000-0x00007FF93B861000-memory.dmp

memory/4012-8-0x00007FF93ADA0000-0x00007FF93B861000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp4371.tmp.bat

MD5 c98ebdb385778db9ca4f7140c8372bf4
SHA1 4c2e09fe68b275b0efdb8973b1ff03f9140d437c
SHA256 5454f68c8ca13145a3026266430108b2e3b5e8481705500a1cc0f795c209d78f
SHA512 7d88ce19615d08f470055f9fa814edc7a23443630295404739d18112ab8ced7685e5fe3511edd168af451bf4535c5bb1706bfab980ea30dec0540dbd149754b4

C:\Users\Admin\AppData\Roaming\task.exe

MD5 76e8d35fe35dce2fb65d0e2fb1be067c
SHA1 543ae7d1f3288b6439f50a7a6c50dacf02d13af4
SHA256 9c75c0e33bb81cadd1659deef9302106b7f2358cd8ea613e6e8b76f41e60ba8a
SHA512 d1a406fb8862577e0ba9ed1404b7568fcf519e8a39bc966e9ea58922bb2eb34bdd7275f9f3c6688b77d3604427a21973484d0b15a9cb4c992f61b17a2d775f02

C:\Users\Admin\AppData\Roaming\MyData\DataLogs.conf

MD5 cf759e4c5f14fe3eec41b87ed756cea8
SHA1 c27c796bb3c2fac929359563676f4ba1ffada1f5
SHA256 c9f9f193409217f73cc976ad078c6f8bf65d3aabcf5fad3e5a47536d47aa6761
SHA512 c7f832aee13a5eb36d145f35d4464374a9e12fa2017f3c2257442d67483b35a55eccae7f7729243350125b37033e075efbc2303839fd86b81b9b4dca3626953b