asyncrat | 130fdbe7e4608b84b16122bca61aee0943d29b02222bd11bbb6f99708cf53fa0

Analysis

max time kernel
120s
max time network
150s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
19/04/2024, 17:32

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General

Target
447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759.exe
Size 63KB
Sample240419-v4rrmsag49
SHA256 447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759
MD5 c1ade258f05c512e98ebc4d9d1165f8a
SHA1 acf20f6a7dc7841ae06f801b887289fdc99e0488
SHA512 5b652e0ef6293d7baeb7e9d8b79322ec65e98d748e1df492099fa6692d0bbc78f032df68e7028a28af06b5c27394456159351a6469fdaf777e6eb98609331076
SSDEEP 1536:SaKFoNbEkySYKumUYFOy5biAPY0JG4aRjnl7RUr+TG5x:SawoNbEkAKumUYFD5biF0JejxSsCx
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

asyncrat exodus_market rat spyware stealer

Malware Config

Extracted

Family

asyncrat

Version

| Edit 3LOSH RAT

Botnet

Exodus_Market

leetboy.dynuddns.net:1339

Mutex

AsyncMutex_6SI8OkPnk

Attributes

delay
3
install
true
install_file
svchos.exe
install_folder
%AppData%

aes.plain

Signatures

AsyncRat
AsyncRAT is designed to remotely monitor and control other computers written in C#.
rat asyncrat

Async RAT payload 1 IoCs

rat

resource	yara_rule
behavioral1/files/0x000c000000012331-13.dat	family_asyncrat

Executes dropped EXE 1 IoCs

pid	Process
2580	svchos.exe

Loads dropped DLL 1 IoCs

pid	Process
2596	cmd.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
2672	schtasks.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2696	timeout.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2968	447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759.exe
2968	447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759.exe
2580	svchos.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2968	447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759.exe
Token: SeDebugPrivilege	2580	svchos.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2580	svchos.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 2968 wrote to memory of 2112	2968	447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759.exe	28
PID 2968 wrote to memory of 2112	2968	447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759.exe	28
PID 2968 wrote to memory of 2112	2968	447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759.exe	28
PID 2968 wrote to memory of 2112	2968	447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759.exe	28
PID 2968 wrote to memory of 2596	2968	447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759.exe	30
PID 2968 wrote to memory of 2596	2968	447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759.exe	30
PID 2968 wrote to memory of 2596	2968	447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759.exe	30
PID 2968 wrote to memory of 2596	2968	447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759.exe	30
PID 2112 wrote to memory of 2672	2112	cmd.exe	32
PID 2112 wrote to memory of 2672	2112	cmd.exe	32
PID 2112 wrote to memory of 2672	2112	cmd.exe	32
PID 2112 wrote to memory of 2672	2112	cmd.exe	32
PID 2596 wrote to memory of 2696	2596	cmd.exe	33
PID 2596 wrote to memory of 2696	2596	cmd.exe	33
PID 2596 wrote to memory of 2696	2596	cmd.exe	33
PID 2596 wrote to memory of 2696	2596	cmd.exe	33
PID 2596 wrote to memory of 2580	2596	cmd.exe	34
PID 2596 wrote to memory of 2580	2596	cmd.exe	34
PID 2596 wrote to memory of 2580	2596	cmd.exe	34
PID 2596 wrote to memory of 2580	2596	cmd.exe	34

C:\Users\Admin\AppData\Local\Temp\447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759.exe
"C:\Users\Admin\AppData\Local\Temp\447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2968
- 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
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2112
- - C:\Windows\SysWOW64\schtasks.exe
    schtasks /create /f /sc onlogon /rl highest /tn "svchos" /tr '"C:\Users\Admin\AppData\Roaming\svchos.exe"'
    3⤵
    - Creates scheduled task(s)
    PID:2672
- C:\Windows\SysWOW64\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp1989.tmp.bat""
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2596
- - C:\Windows\SysWOW64\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:2696
- - C:\Users\Admin\AppData\Roaming\svchos.exe
    "C:\Users\Admin\AppData\Roaming\svchos.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetWindowsHookEx
    PID:2580

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Scheduled Task/Job

T1053

Privilege Escalation

Scheduled Task/Job

T1053

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

94308059B57B3142E455B38A6EB92015

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
Size 68KB
SHA256 1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184
MD5 29f65ba8e88c063813cc50a4ea544e93
SHA1 05a7040d5c127e68c25d81cc51271ffb8bef3568
SHA512 e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa
SSDEEP 1536:iMveRG6BWC7T2g1wGUa5QUoaIB9ttiFJG+AOQOXl0Usvwr:feRG6BX6gUaHo9tkBHiUewr
MD5 SHA1 SHA512 SSDEEP

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Tar4B98.tmp

Path C:\Users\Admin\AppData\Local\Temp\Tar4B98.tmp
Size 177KB
SHA256 67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34
MD5 435a9ac180383f9fa094131b173a2f7b
SHA1 76944ea657a9db94f9a4bef38f88c46ed4166983
SHA512 1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a
SSDEEP 1536:fAo/J+lCUsTRvsqgCyqWlUDNWdm1wpSru2A0XwjY/z02DTr3rmt6mJ:f/J+qTR0XCy/dmASru2Aijbdq
MD5 SHA1 SHA512 SSDEEP

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tmp1989.tmp.bat

Path C:\Users\Admin\AppData\Local\Temp\tmp1989.tmp.bat
Size 150B
SHA256 af2967b8dcbaf1720a911673e00777051634c4aba6520a0ff0ee9640c9c0f16e
MD5 1cef75e79b69c3c1bb0e94c455f8da64
SHA1 a2b054f2c574a37d3ee9068999f1b6ab21f250a7
SHA512 322dd1296b999b9c4152acf3b95897cb292898a76a638d84ee6b6674b28e2c1f0a56e4dfa0bd2da3e2c623283b214b549dbc154b8fd4a75d429e42ac9e660ee0
MD5 SHA1 SHA512

Submit Download

svchos.exe

Path \Users\Admin\AppData\Roaming\svchos.exe
Size 63KB
SHA256 447eae52ab1979405497866c72df7ec0703085ad6946ab0127f612b1518f8759
MD5 c1ade258f05c512e98ebc4d9d1165f8a
SHA1 acf20f6a7dc7841ae06f801b887289fdc99e0488
SHA512 5b652e0ef6293d7baeb7e9d8b79322ec65e98d748e1df492099fa6692d0bbc78f032df68e7028a28af06b5c27394456159351a6469fdaf777e6eb98609331076
SSDEEP 1536:SaKFoNbEkySYKumUYFOy5biAPY0JG4aRjnl7RUr+TG5x:SawoNbEkAKumUYFD5biF0JejxSsCx
MD5 SHA1 SHA512 SSDEEP

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memory/2580-16-0x00000000001D0000-0x00000000001E6000-memory.dmp

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memory/2580-17-0x0000000074500000-0x0000000074BEE000-memory.dmp

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memory/2580-18-0x00000000047F0000-0x0000000004830000-memory.dmp

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memory/2580-56-0x0000000074500000-0x0000000074BEE000-memory.dmp

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memory/2580-57-0x00000000047F0000-0x0000000004830000-memory.dmp

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memory/2968-0-0x0000000001220000-0x0000000001236000-memory.dmp

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memory/2968-12-0x0000000074550000-0x0000000074C3E000-memory.dmp

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memory/2968-2-0x00000000010B0000-0x00000000010F0000-memory.dmp

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memory/2968-1-0x0000000074550000-0x0000000074C3E000-memory.dmp

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