Analysis
- max time kernel
150s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
08/07/2022, 10:46
General
- Target a5a2072e34787eefe2612b74fe5ee3e5.exe
- Size 288KB
- Sample220708-mty4zadhc7
- SHA256 dd44d033ae2e30cc21bd17c221031441e5b6a29b86f21b3eee82ee3bfad51278
Malware Config
Signatures
- suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile
- Downloads MZ/PE file
- Executes dropped EXE 3 IoCs
- Drops startup file 1 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
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 2 IoCs
- Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
- Suspicious behavior: AddClipboardFormatListener 1 IoCs
- Suspicious behavior: EnumeratesProcesses 64 IoCs
- Suspicious behavior: GetForegroundWindowSpam 1 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 9 IoCs
- Suspicious use of WriteProcessMemory 9 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\a5a2072e34787eefe2612b74fe5ee3e5.exe"C:\Users\Admin\AppData\Local\Temp\a5a2072e34787eefe2612b74fe5ee3e5.exe"1⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
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C:\Users\Admin\AppData\Local\Temp\44F8.exeC:\Users\Admin\AppData\Local\Temp\44F8.exe1⤵
- Executes dropped EXE
- Drops startup file
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\Smart Clock\SmartClock.exe"C:\Users\Admin\AppData\Roaming\Smart Clock\SmartClock.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: AddClipboardFormatListener
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4600 -s 9602⤵
- Program crash
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 4600 -ip 46001⤵
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C:\Users\Admin\AppData\Local\Temp\8751.exeC:\Users\Admin\AppData\Local\Temp\8751.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2532 -s 20842⤵
- Program crash
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-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2532 -ip 25321⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
44F8.exe
44F8.exe
8751.exe
8751.exe
SmartClock.exe
SmartClock.exe
memory/2532-157-0x0000000006EF0000-0x0000000006F66000-memory.dmp
memory/2532-158-0x0000000006F80000-0x0000000007012000-memory.dmp
memory/2532-166-0x0000000000400000-0x0000000000A9E000-memory.dmp
memory/2532-165-0x0000000000D19000-0x0000000000D44000-memory.dmp
memory/2532-164-0x0000000000D19000-0x0000000000D44000-memory.dmp
memory/2532-163-0x00000000077F0000-0x0000000007840000-memory.dmp
memory/2532-162-0x0000000008370000-0x000000000889C000-memory.dmp
memory/2532-161-0x0000000008190000-0x0000000008352000-memory.dmp
memory/2532-160-0x0000000007250000-0x00000000072B6000-memory.dmp
memory/2532-159-0x00000000070C0000-0x00000000070DE000-memory.dmp
memory/2532-156-0x0000000002D40000-0x0000000002D7C000-memory.dmp
memory/2532-155-0x0000000005FA0000-0x00000000060AA000-memory.dmp
memory/2532-149-0x00000000053D0000-0x0000000005974000-memory.dmp
memory/2532-150-0x0000000000D19000-0x0000000000D44000-memory.dmp
memory/2532-151-0x00000000026E0000-0x0000000002718000-memory.dmp
memory/2532-152-0x0000000000400000-0x0000000000A9E000-memory.dmp
memory/2532-153-0x0000000005980000-0x0000000005F98000-memory.dmp
memory/2532-154-0x0000000002D00000-0x0000000002D12000-memory.dmp
memory/2844-145-0x0000000000400000-0x00000000004AC000-memory.dmp
memory/2844-144-0x00000000005CD000-0x000000000064D000-memory.dmp
memory/4600-137-0x000000000067D000-0x00000000006FD000-memory.dmp
memory/4600-143-0x0000000000400000-0x00000000004AC000-memory.dmp
memory/4600-140-0x0000000000400000-0x00000000004AC000-memory.dmp
memory/4600-138-0x0000000002100000-0x0000000002191000-memory.dmp
memory/4688-131-0x0000000000BE0000-0x0000000000BE9000-memory.dmp
memory/4688-132-0x0000000000400000-0x0000000000A77000-memory.dmp
memory/4688-130-0x0000000000C82000-0x0000000000C92000-memory.dmp
memory/4688-133-0x0000000000400000-0x0000000000A77000-memory.dmp