Malware Analysis Report

2024-10-19 06:54

Sample ID 240525-q6kc5aeg4s
Target start.exe
SHA256 447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759
Tags
rat exodus_market asyncrat spyware stealer
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

447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759

Threat Level: Known bad

The file start.exe was found to be: Known bad.

Malicious Activity Summary

rat exodus_market asyncrat spyware stealer

AsyncRat

Async RAT payload

Asyncrat family

Async RAT payload

Reads user/profile data of web browsers

Checks computer location settings

Loads dropped DLL

Executes dropped EXE

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Delays execution with timeout.exe

Suspicious use of SetWindowsHookEx

Creates scheduled task(s)

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-25 13:52

Signatures

Async RAT payload

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

Asyncrat family

asyncrat

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-25 13:52

Reported

2024-05-25 13:56

Platform

win7-20240220-en

Max time kernel

121s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\start.exe"

Signatures

AsyncRat

rat asyncrat

Async RAT payload

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

Executes dropped EXE

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

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\cmd.exe N/A

Reads user/profile data of web browsers

spyware stealer

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\timeout.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\start.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\start.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\svchos.exe N/A

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of SetWindowsHookEx

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2356 wrote to memory of 2396 N/A C:\Users\Admin\AppData\Local\Temp\start.exe C:\Windows\SysWOW64\cmd.exe
PID 2356 wrote to memory of 2396 N/A C:\Users\Admin\AppData\Local\Temp\start.exe C:\Windows\SysWOW64\cmd.exe
PID 2356 wrote to memory of 2396 N/A C:\Users\Admin\AppData\Local\Temp\start.exe C:\Windows\SysWOW64\cmd.exe
PID 2356 wrote to memory of 2396 N/A C:\Users\Admin\AppData\Local\Temp\start.exe C:\Windows\SysWOW64\cmd.exe
PID 2356 wrote to memory of 3040 N/A C:\Users\Admin\AppData\Local\Temp\start.exe C:\Windows\SysWOW64\cmd.exe
PID 2356 wrote to memory of 3040 N/A C:\Users\Admin\AppData\Local\Temp\start.exe C:\Windows\SysWOW64\cmd.exe
PID 2356 wrote to memory of 3040 N/A C:\Users\Admin\AppData\Local\Temp\start.exe C:\Windows\SysWOW64\cmd.exe
PID 2356 wrote to memory of 3040 N/A C:\Users\Admin\AppData\Local\Temp\start.exe C:\Windows\SysWOW64\cmd.exe
PID 2396 wrote to memory of 2576 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 2396 wrote to memory of 2576 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 2396 wrote to memory of 2576 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 2396 wrote to memory of 2576 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 3040 wrote to memory of 2692 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 3040 wrote to memory of 2692 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 3040 wrote to memory of 2692 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 3040 wrote to memory of 2692 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 3040 wrote to memory of 2804 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Roaming\svchos.exe
PID 3040 wrote to memory of 2804 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Roaming\svchos.exe
PID 3040 wrote to memory of 2804 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Roaming\svchos.exe
PID 3040 wrote to memory of 2804 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Roaming\svchos.exe

Processes

C:\Users\Admin\AppData\Local\Temp\start.exe

"C:\Users\Admin\AppData\Local\Temp\start.exe"

C:\Windows\SysWOW64\cmd.exe

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

C:\Windows\SysWOW64\cmd.exe

cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp2166.tmp.bat""

C:\Windows\SysWOW64\schtasks.exe

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

C:\Windows\SysWOW64\timeout.exe

timeout 3

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 leetboy.dynuddns.net udp
IT 185.196.11.252:1339 leetboy.dynuddns.net tcp

Files

memory/2356-0-0x0000000074AAE000-0x0000000074AAF000-memory.dmp

memory/2356-1-0x0000000000FB0000-0x0000000000FC6000-memory.dmp

memory/2356-2-0x0000000074AA0000-0x000000007518E000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp2166.tmp.bat

MD5 8e96e4a16cb1b534d96e4182bf374bee
SHA1 42aa1a7b71d1304d2aca77e2f975ce196061bc1d
SHA256 bbd62f22f660349f84e1f11e54c93aa0ad42b4a3e41fcc23a1011a988edf42e4
SHA512 b1b694e5813a7a518020155c64aaa0688e99ff2f8b6cfe44ab48edc47421cf4f19f3ace00864f118e6824cb2d2ed438414f42cf1ff5498acb8cab7dc4c5bd913

memory/2356-12-0x0000000074AA0000-0x000000007518E000-memory.dmp

\Users\Admin\AppData\Roaming\svchos.exe

MD5 c1ade258f05c512e98ebc4d9d1165f8a
SHA1 acf20f6a7dc7841ae06f801b887289fdc99e0488
SHA256 447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759
SHA512 5b652e0ef6293d7baeb7e9d8b79322ec65e98d748e1df492099fa6692d0bbc78f032df68e7028a28af06b5c27394456159351a6469fdaf777e6eb98609331076

memory/2804-16-0x0000000001260000-0x0000000001276000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-25 13:52

Reported

2024-05-25 13:56

Platform

win10v2004-20240426-en

Max time kernel

147s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\start.exe"

Signatures

AsyncRat

rat asyncrat

Async RAT payload

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\start.exe N/A

Executes dropped EXE

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

Reads user/profile data of web browsers

spyware stealer

Enumerates physical storage devices

Creates scheduled task(s)

persistence
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\timeout.exe N/A

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of SetWindowsHookEx

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

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4720 wrote to memory of 1380 N/A C:\Users\Admin\AppData\Local\Temp\start.exe C:\Windows\SysWOW64\cmd.exe
PID 4720 wrote to memory of 1380 N/A C:\Users\Admin\AppData\Local\Temp\start.exe C:\Windows\SysWOW64\cmd.exe
PID 4720 wrote to memory of 1380 N/A C:\Users\Admin\AppData\Local\Temp\start.exe C:\Windows\SysWOW64\cmd.exe
PID 4720 wrote to memory of 4000 N/A C:\Users\Admin\AppData\Local\Temp\start.exe C:\Windows\SysWOW64\cmd.exe
PID 4720 wrote to memory of 4000 N/A C:\Users\Admin\AppData\Local\Temp\start.exe C:\Windows\SysWOW64\cmd.exe
PID 4720 wrote to memory of 4000 N/A C:\Users\Admin\AppData\Local\Temp\start.exe C:\Windows\SysWOW64\cmd.exe
PID 4000 wrote to memory of 2060 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 4000 wrote to memory of 2060 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 4000 wrote to memory of 2060 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 1380 wrote to memory of 1408 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 1380 wrote to memory of 1408 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 1380 wrote to memory of 1408 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 4000 wrote to memory of 3016 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Roaming\svchos.exe
PID 4000 wrote to memory of 3016 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Roaming\svchos.exe
PID 4000 wrote to memory of 3016 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Roaming\svchos.exe

Processes

C:\Users\Admin\AppData\Local\Temp\start.exe

"C:\Users\Admin\AppData\Local\Temp\start.exe"

C:\Windows\SysWOW64\cmd.exe

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

C:\Windows\SysWOW64\cmd.exe

C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp5CB6.tmp.bat""

C:\Windows\SysWOW64\schtasks.exe

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

C:\Windows\SysWOW64\timeout.exe

timeout 3

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 240.143.123.92.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 leetboy.dynuddns.net udp
US 8.8.8.8:53 154.239.44.20.in-addr.arpa udp
IT 185.196.11.252:1339 leetboy.dynuddns.net tcp
US 8.8.8.8:53 252.11.196.185.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 157.123.68.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 144.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 48.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 24.173.189.20.in-addr.arpa udp

Files

memory/4720-0-0x00000000745AE000-0x00000000745AF000-memory.dmp

memory/4720-1-0x0000000000A50000-0x0000000000A66000-memory.dmp

memory/4720-2-0x00000000745A0000-0x0000000074D50000-memory.dmp

memory/4720-3-0x00000000054C0000-0x000000000555C000-memory.dmp

memory/4720-8-0x00000000745A0000-0x0000000074D50000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp5CB6.tmp.bat

MD5 712a5eac516d3a1dcd94a3a7ef1a1ada
SHA1 b1e43d3dba3e40896a7bfa61baf1b0f2890725fc
SHA256 c7094e9abc0e0539be3bc5b3ba61a0e1d99b4a29f62b43128f79b1f63bb8b510
SHA512 f007259420057b9f8db6a8e2b4383d656a691b41e7b6cd51f68b439c9adbadc92675f19a8e215431f4ccef93a8276ac8d09c6cb3740643345017e8235c1d7343

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

MD5 c1ade258f05c512e98ebc4d9d1165f8a
SHA1 acf20f6a7dc7841ae06f801b887289fdc99e0488
SHA256 447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759
SHA512 5b652e0ef6293d7baeb7e9d8b79322ec65e98d748e1df492099fa6692d0bbc78f032df68e7028a28af06b5c27394456159351a6469fdaf777e6eb98609331076

memory/3016-13-0x0000000074500000-0x0000000074CB0000-memory.dmp

memory/3016-14-0x0000000074500000-0x0000000074CB0000-memory.dmp

memory/3016-15-0x00000000057E0000-0x0000000005D84000-memory.dmp

memory/3016-16-0x00000000053D0000-0x0000000005462000-memory.dmp

memory/3016-17-0x0000000005390000-0x000000000539A000-memory.dmp

memory/3016-20-0x0000000006500000-0x0000000006566000-memory.dmp

memory/3016-21-0x0000000074500000-0x0000000074CB0000-memory.dmp

memory/3016-22-0x0000000074500000-0x0000000074CB0000-memory.dmp