Analysis
- max time kernel
148s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
27/04/2024, 03:40
General
- Target b780f8659c3cfab33ffa95b25b396b2b8ade8bd40c72aaf7c87ad3c6b6cf34c5.exe
- Size 50KB
- Sample240427-d8hwvsba7x
- SHA256 b780f8659c3cfab33ffa95b25b396b2b8ade8bd40c72aaf7c87ad3c6b6cf34c5
Malware Config
Extracted
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xworm
-
5.0
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127.0.0.1:7000
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91.92.252.220:7000
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41.199.23.195:7000
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saveclinetsforme68465454711991.publicvm.com:7000
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bBT8anvIxhxDFmkf
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Install_directory
%AppData%
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install_file
explorer.exe
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telegram
https://api.telegram.org/bot2128988424:AAEkYnwvOQA95riqRZwlqBxg4GV-odRNOyo/sendMessage?chat_id=966649672
Extracted
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redline
-
cheat
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saveclinetsforme68465454711991.publicvm.com:1111
Signatures
- Detect Xworm Payload 2 IoCs
- RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
- RedLine payload 1 IoCs
- SectopRAT
SectopRAT is a remote access trojan first seen in November 2019.
- SectopRAT payload 1 IoCs
- Xworm
Xworm is a remote access trojan written in C#.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Drops startup file 2 IoCs
- Executes dropped EXE 3 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Adds Run key to start application 2 TTPs 1 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious behavior: EnumeratesProcesses 14 IoCs
- Suspicious use of AdjustPrivilegeToken 9 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 10 IoCs
- Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
Processes
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C:\Users\Admin\AppData\Local\Temp\b780f8659c3cfab33ffa95b25b396b2b8ade8bd40c72aaf7c87ad3c6b6cf34c5.exe"C:\Users\Admin\AppData\Local\Temp\b780f8659c3cfab33ffa95b25b396b2b8ade8bd40c72aaf7c87ad3c6b6cf34c5.exe"1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\b780f8659c3cfab33ffa95b25b396b2b8ade8bd40c72aaf7c87ad3c6b6cf34c5.exe'2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'b780f8659c3cfab33ffa95b25b396b2b8ade8bd40c72aaf7c87ad3c6b6cf34c5.exe'2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\explorer.exe'2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'explorer.exe'2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "explorer" /tr "C:\Users\Admin\AppData\Roaming\explorer.exe"2⤵
- Creates scheduled task(s)
-
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C:\Users\Admin\AppData\Roaming\explorer.exeC:\Users\Admin\AppData\Roaming\explorer.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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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=4036 --field-trial-handle=2248,i,10247514684337323751,15511974759131734137,262144 --variations-seed-version /prefetch:81⤵
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C:\Users\Admin\AppData\Roaming\explorer.exeC:\Users\Admin\AppData\Roaming\explorer.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\explorer.exeC:\Users\Admin\AppData\Roaming\explorer.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
explorer.exe.log
powershell.exe.log
StartupProfileData-NonInteractive
StartupProfileData-NonInteractive
StartupProfileData-NonInteractive
__PSScriptPolicyTest_g4nmw5k2.vei.ps1
tmp6155.tmp
tmp61BA.tmp
tmp6214.tmp
tmp622A.tmp
tmp6265.tmp
explorer.exe
memory/3132-12-0x000001826B280000-0x000001826B2A2000-memory.dmp
memory/3132-19-0x00007FF9D5CB0000-0x00007FF9D6771000-memory.dmp
memory/3132-16-0x000001826B2B0000-0x000001826B2C0000-memory.dmp
memory/3132-14-0x000001826B2B0000-0x000001826B2C0000-memory.dmp
memory/3132-15-0x000001826B2B0000-0x000001826B2C0000-memory.dmp
memory/3132-13-0x00007FF9D5CB0000-0x00007FF9D6771000-memory.dmp
memory/4544-58-0x00007FF9D5CB0000-0x00007FF9D6771000-memory.dmp
memory/4544-67-0x000000001D7E0000-0x000000001DB30000-memory.dmp
memory/4544-68-0x0000000000B20000-0x0000000000B32000-memory.dmp
memory/4544-69-0x000000001DB70000-0x000000001DBAC000-memory.dmp
memory/4544-70-0x000000001E0D0000-0x000000001E292000-memory.dmp
memory/4544-71-0x000000001E7D0000-0x000000001ECF8000-memory.dmp
memory/4544-72-0x000000001D460000-0x000000001D4D6000-memory.dmp
memory/4544-73-0x000000001D3E0000-0x000000001D3FE000-memory.dmp
memory/4544-66-0x0000000000AE0000-0x0000000000AFE000-memory.dmp
memory/4544-62-0x000000001B110000-0x000000001B120000-memory.dmp
memory/4544-0-0x0000000000410000-0x0000000000422000-memory.dmp
memory/4544-2-0x000000001B110000-0x000000001B120000-memory.dmp
memory/4544-1-0x00007FF9D5CB0000-0x00007FF9D6771000-memory.dmp