Analysis
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max time kernel
124s -
max time network
123s -
platform
windows10-2004_x64 -
resource
win10v2004-20230221-en -
resource tags
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submitted
17-03-2023 15:35
General
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Target
946fa8826403d58c6694d18b89af7bf80c078f792f9aae820ac9ced395450f63.exe
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Size
622KB
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MD5
839d91ad6b1ad96150fb2c31431ab21b
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SHA1
51bc3becc236098b9fee553a6f811dab513f585a
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SHA256
946fa8826403d58c6694d18b89af7bf80c078f792f9aae820ac9ced395450f63
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SHA512
29fc5bc119543053f12a3018fea5171d55216c63bd5ad317c897450ee7d8420dd753d8ec843ca4fbb5446ee3cd10daf7f326748283a00f93e2d5ec9d7cd7e30f
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SSDEEP
12288:81w6sNLoD5jDqHBNfoD3UbRUPXzER/U/5s5BhcjZnbCkI:Kw67DYPbubEe/5djZnbCkI
Malware Config
Extracted
blustealer
https://api.telegram.org/bot5412597166:AAGUaWxuTxxhNb-NRhiURcTMzuW9nhGoEs/sendMessage?chat_id=932962718
Signatures
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BluStealer
A Modular information stealer written in Visual Basic.
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StormKitty
StormKitty is an open source info stealer written in C#.
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StormKitty payload 1 IoCs
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Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
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Looks for VMWare Tools registry key 2 TTPs 1 IoCs
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Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
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Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
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Maps connected drives based on registry 3 TTPs 2 IoCs
Disk information is often read in order to detect sandboxing environments.
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Suspicious use of SetThreadContext 2 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 26 IoCs
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Suspicious behavior: GetForegroundWindowSpam 1 IoCs
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Suspicious use of AdjustPrivilegeToken 3 IoCs
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Suspicious use of SetWindowsHookEx 1 IoCs
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Suspicious use of WriteProcessMemory 22 IoCs
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outlook_office_path 1 IoCs
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outlook_win_path 1 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\946fa8826403d58c6694d18b89af7bf80c078f792f9aae820ac9ced395450f63.exe"C:\Users\Admin\AppData\Local\Temp\946fa8826403d58c6694d18b89af7bf80c078f792f9aae820ac9ced395450f63.exe"1⤵
- Looks for VirtualBox Guest Additions in registry
- Looks for VMWare Tools registry key
- Checks BIOS information in registry
- Checks computer location settings
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\TJbEKIo.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\TJbEKIo" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE02E.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\946fa8826403d58c6694d18b89af7bf80c078f792f9aae820ac9ced395450f63.exe"C:\Users\Admin\AppData\Local\Temp\946fa8826403d58c6694d18b89af7bf80c078f792f9aae820ac9ced395450f63.exe"2⤵
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C:\Users\Admin\AppData\Local\Temp\946fa8826403d58c6694d18b89af7bf80c078f792f9aae820ac9ced395450f63.exe"C:\Users\Admin\AppData\Local\Temp\946fa8826403d58c6694d18b89af7bf80c078f792f9aae820ac9ced395450f63.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe3⤵
- Accesses Microsoft Outlook profiles
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD58e5292007d374db1ceb70cb010d7480c
SHA1fa510016e3413354b137bb5e2a081569612b7a57
SHA2567e732b51290e8d942514be787cf5d6c4f536c5c6b501ababc0b89cc0c7819d88
SHA512c5ce00eb0463c24c498fae6f3f515a07c2d247236cc2d8a81615991caf773ca48198766971b78a0ae2877e7477d87d4e0d8e84d525d22437eccc4055a9cfb118
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Filesize
104KB
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Filesize
640KB
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Filesize
5.6MB
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Filesize
584KB
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Filesize
40KB
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Filesize
64KB
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Filesize
64KB
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Filesize
624KB
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Filesize
408KB
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Filesize
408KB
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Filesize
304KB
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Filesize
136KB
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Filesize
64KB
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Filesize
64KB
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Filesize
32KB
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Filesize
6.2MB
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Filesize
216KB
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Filesize
120KB
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Filesize
64KB
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Filesize
200KB
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Filesize
104KB
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Filesize
120KB
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Filesize
64KB
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Filesize
6.5MB
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Filesize
104KB
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Filesize
40KB
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Filesize
600KB
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Filesize
56KB
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Filesize
148KB
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Filesize
148KB
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Filesize
148KB