Malware Analysis Report

2024-10-19 06:55

Sample ID 240525-q6kc5aeg4t
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

Loads dropped DLL

Checks computer location settings

Executes dropped EXE

Unsigned PE

Enumerates physical storage devices

Delays execution with timeout.exe

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

Creates scheduled task(s)

Suspicious use of AdjustPrivilegeToken

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 13:59

Platform

win7-20240508-en

Max time kernel

122s

Max time network

152s

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 2420 wrote to memory of 2376 N/A C:\Users\Admin\AppData\Local\Temp\start.exe C:\Windows\SysWOW64\cmd.exe
PID 2420 wrote to memory of 2376 N/A C:\Users\Admin\AppData\Local\Temp\start.exe C:\Windows\SysWOW64\cmd.exe
PID 2420 wrote to memory of 2376 N/A C:\Users\Admin\AppData\Local\Temp\start.exe C:\Windows\SysWOW64\cmd.exe
PID 2420 wrote to memory of 2376 N/A C:\Users\Admin\AppData\Local\Temp\start.exe C:\Windows\SysWOW64\cmd.exe
PID 2420 wrote to memory of 1648 N/A C:\Users\Admin\AppData\Local\Temp\start.exe C:\Windows\SysWOW64\cmd.exe
PID 2420 wrote to memory of 1648 N/A C:\Users\Admin\AppData\Local\Temp\start.exe C:\Windows\SysWOW64\cmd.exe
PID 2420 wrote to memory of 1648 N/A C:\Users\Admin\AppData\Local\Temp\start.exe C:\Windows\SysWOW64\cmd.exe
PID 2420 wrote to memory of 1648 N/A C:\Users\Admin\AppData\Local\Temp\start.exe C:\Windows\SysWOW64\cmd.exe
PID 2376 wrote to memory of 3036 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 2376 wrote to memory of 3036 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 2376 wrote to memory of 3036 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 2376 wrote to memory of 3036 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 1648 wrote to memory of 2172 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 1648 wrote to memory of 2172 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 1648 wrote to memory of 2172 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 1648 wrote to memory of 2172 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 1648 wrote to memory of 2700 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Roaming\svchos.exe
PID 1648 wrote to memory of 2700 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Roaming\svchos.exe
PID 1648 wrote to memory of 2700 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Roaming\svchos.exe
PID 1648 wrote to memory of 2700 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\tmp2D76.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/2420-0-0x0000000073FEE000-0x0000000073FEF000-memory.dmp

memory/2420-1-0x0000000000BD0000-0x0000000000BE6000-memory.dmp

memory/2420-2-0x0000000073FE0000-0x00000000746CE000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp2D76.tmp.bat

MD5 f3a56aa3ab458f16495e6d045226f417
SHA1 e215b3d4bbc7cd9a384483566573a76a18af2058
SHA256 062ed979eb77ebdb373a7ff1640b6fa91e5a68460a53359c755dc18724e950a0
SHA512 bdba89d13cb56033e8817df81d6c99b69b6783e3a13841db0ba8806bde70b5ad6377f48f2f2d6ec500abbc77204205389dfdeecb2af11c25143b7a91b145ae27

memory/2420-12-0x0000000073FE0000-0x00000000746CE000-memory.dmp

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

MD5 c1ade258f05c512e98ebc4d9d1165f8a
SHA1 acf20f6a7dc7841ae06f801b887289fdc99e0488
SHA256 447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759
SHA512 5b652e0ef6293d7baeb7e9d8b79322ec65e98d748e1df492099fa6692d0bbc78f032df68e7028a28af06b5c27394456159351a6469fdaf777e6eb98609331076

memory/2700-16-0x0000000000BD0000-0x0000000000BE6000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\Cab4D09.tmp

MD5 29f65ba8e88c063813cc50a4ea544e93
SHA1 05a7040d5c127e68c25d81cc51271ffb8bef3568
SHA256 1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184
SHA512 e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-25 13:52

Reported

2024-05-25 14:00

Platform

win10v2004-20240226-en

Max time kernel

140s

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-1-5-21-3808065738-1666277613-1125846146-1000\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 1596 wrote to memory of 2780 N/A C:\Users\Admin\AppData\Local\Temp\start.exe C:\Windows\SysWOW64\cmd.exe
PID 1596 wrote to memory of 2780 N/A C:\Users\Admin\AppData\Local\Temp\start.exe C:\Windows\SysWOW64\cmd.exe
PID 1596 wrote to memory of 2780 N/A C:\Users\Admin\AppData\Local\Temp\start.exe C:\Windows\SysWOW64\cmd.exe
PID 1596 wrote to memory of 1268 N/A C:\Users\Admin\AppData\Local\Temp\start.exe C:\Windows\SysWOW64\cmd.exe
PID 1596 wrote to memory of 1268 N/A C:\Users\Admin\AppData\Local\Temp\start.exe C:\Windows\SysWOW64\cmd.exe
PID 1596 wrote to memory of 1268 N/A C:\Users\Admin\AppData\Local\Temp\start.exe C:\Windows\SysWOW64\cmd.exe
PID 1268 wrote to memory of 776 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 1268 wrote to memory of 776 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 1268 wrote to memory of 776 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\timeout.exe
PID 2780 wrote to memory of 2220 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 2780 wrote to memory of 2220 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 2780 wrote to memory of 2220 N/A C:\Windows\SysWOW64\cmd.exe C:\Windows\SysWOW64\schtasks.exe
PID 1268 wrote to memory of 4824 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Roaming\svchos.exe
PID 1268 wrote to memory of 4824 N/A C:\Windows\SysWOW64\cmd.exe C:\Users\Admin\AppData\Roaming\svchos.exe
PID 1268 wrote to memory of 4824 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\tmp59B4.tmp.bat""

C:\Windows\SysWOW64\timeout.exe

timeout 3

C:\Windows\SysWOW64\schtasks.exe

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

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

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

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4068 --field-trial-handle=2236,i,5367110156796017614,12594004256180761011,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 20.231.121.79:80 tcp
US 8.8.8.8:53 140.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 13.107.246.64:443 tcp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 leetboy.dynuddns.net 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 udp
US 8.8.8.8:53 21.236.111.52.in-addr.arpa udp
US 8.8.8.8:53 208.143.182.52.in-addr.arpa udp

Files

memory/1596-0-0x000000007455E000-0x000000007455F000-memory.dmp

memory/1596-1-0x0000000000410000-0x0000000000426000-memory.dmp

memory/1596-2-0x0000000074550000-0x0000000074D00000-memory.dmp

memory/1596-3-0x0000000004EE0000-0x0000000004F7C000-memory.dmp

memory/1596-8-0x0000000074550000-0x0000000074D00000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp59B4.tmp.bat

MD5 2ef47456452f5580834ad0fff077ab8e
SHA1 8b415fa7c236a736135cd5ae350f56735a23e406
SHA256 73df1bfbf61a1f6db80c63567bf2f9197cd078b9181fcaa0d223ed6dcde5f2ab
SHA512 d9834db1c037a8df0f623650e6735cbb1d35bcf9f06311660d73d4e71a9b9c22bcd3aa047b2291f5b9fd0a8cd4092e390edb27a6f5105d0cf6c96a3c2b376f63

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

MD5 c1ade258f05c512e98ebc4d9d1165f8a
SHA1 acf20f6a7dc7841ae06f801b887289fdc99e0488
SHA256 447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759
SHA512 5b652e0ef6293d7baeb7e9d8b79322ec65e98d748e1df492099fa6692d0bbc78f032df68e7028a28af06b5c27394456159351a6469fdaf777e6eb98609331076

memory/4824-13-0x00000000744B0000-0x0000000074C60000-memory.dmp

memory/4824-14-0x00000000744B0000-0x0000000074C60000-memory.dmp

memory/4824-15-0x0000000005530000-0x0000000005AD4000-memory.dmp

memory/4824-16-0x0000000005140000-0x00000000051D2000-memory.dmp

memory/4824-17-0x0000000005110000-0x000000000511A000-memory.dmp

memory/4824-20-0x0000000005DD0000-0x0000000005E36000-memory.dmp

memory/4824-21-0x00000000744B0000-0x0000000074C60000-memory.dmp

memory/4824-22-0x00000000744B0000-0x0000000074C60000-memory.dmp