Analysis
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max time kernel
157s -
max time network
175s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
12-05-2022 12:05
General
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Target
d81ea31e2c38a63dc3878fa6cb1098d6969775b70a4c64d6234c6bb4b1019154.exe
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Size
883KB
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MD5
f423cccffd35959daa3002c39d844710
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SHA1
9bbb9d44d28ce430f0ebc56f7fe999329e5bcd03
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SHA256
d81ea31e2c38a63dc3878fa6cb1098d6969775b70a4c64d6234c6bb4b1019154
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SHA512
538337218d0081cc6bb269b985893ea75642263c13abb6b5ee02655931b3592a2833495b445debf19f4f6c4629a778b75ee8b2790aeab3f30845c63feb80d53d
Malware Config
Signatures
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MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
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MassLogger Main Payload 6 IoCs
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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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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook profiles 1 TTPs 35 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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Suspicious use of SetThreadContext 1 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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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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Modifies system certificate store 2 TTPs 2 IoCs
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Suspicious behavior: AddClipboardFormatListener 1 IoCs
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Suspicious behavior: EnumeratesProcesses 10 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 17 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\d81ea31e2c38a63dc3878fa6cb1098d6969775b70a4c64d6234c6bb4b1019154.exe"C:\Users\Admin\AppData\Local\Temp\d81ea31e2c38a63dc3878fa6cb1098d6969775b70a4c64d6234c6bb4b1019154.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\vbeOlRC" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEBA7.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\d81ea31e2c38a63dc3878fa6cb1098d6969775b70a4c64d6234c6bb4b1019154.exe"{path}"2⤵
- Checks computer location settings
- Accesses Microsoft Outlook profiles
- Modifies system certificate store
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"powershell" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\d81ea31e2c38a63dc3878fa6cb1098d6969775b70a4c64d6234c6bb4b1019154.exe'3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
1KB
MD52d72b995283e785e70df006e033326da
SHA1ba0800dd86097bba67d0e50065ab3c3b3094b51f
SHA25609b1fdf6f9f272d23e6ea4056d6495857e35a6227d2be60ff96c936a32fdad35
SHA51297c21b6e0b1e779e56342974990fbec979e1b2cc23849b902236b3b8306a375be0b3d8677b60f08d3f98486ecccc3c8e6f55de226f304949cdf0553a0a3d2dda
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Filesize
5.7MB
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Filesize
536KB
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Filesize
576KB
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Filesize
248KB
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Filesize
536KB
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Filesize
536KB
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Filesize
536KB
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Filesize
68KB
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Filesize
536KB
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Filesize
536KB
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Filesize
536KB
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Filesize
608KB
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Filesize
72KB
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Filesize
912KB
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Filesize
592KB
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Filesize
8KB
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