Analysis
- max time kernel
62s - max time network
105s - platform
windows10_x64 - resource
win10v20201028 - submitted
01/04/2021, 07:25
General
- Target PO_4000010871_RFQ_PRS_1000024753_RM.exe
- Size 3.6MB
- Sample210401-7ndrcv1fan
- SHA256 546e5320773891c160621ec99d48fb4d90d6d58bc26ab01d7e5a3f16fec9636c
Malware Config
Signatures
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
- Executes dropped EXE 1 IoCs
- Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Loads dropped DLL 2 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- themida 1 IoCs
Detects Themida, Advanced Windows software protection system.
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\PO_4000010871_RFQ_PRS_1000024753_RM.exe"C:\Users\Admin\AppData\Local\Temp\PO_4000010871_RFQ_PRS_1000024753_RM.exe"1⤵
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c bin.exe2⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\bin.exebin.exe3⤵
- Executes dropped EXE
- Loads dropped DLL
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/416-19-0x0000000073940000-0x000000007402E000-memory.dmp
memory/416-26-0x0000000004B00000-0x0000000004B01000-memory.dmp
memory/416-25-0x00000000049B0000-0x00000000049B1000-memory.dmp
memory/416-20-0x0000000000190000-0x0000000000191000-memory.dmp
memory/1056-10-0x0000000005470000-0x0000000005471000-memory.dmp
memory/1056-13-0x000000000F640000-0x000000000F641000-memory.dmp
memory/1056-12-0x0000000005790000-0x0000000005791000-memory.dmp
memory/1056-11-0x0000000005800000-0x0000000005801000-memory.dmp
memory/1056-14-0x000000000F610000-0x000000000F611000-memory.dmp
memory/1056-3-0x0000000077774000-0x0000000077775000-memory.dmp
memory/1056-9-0x0000000005590000-0x0000000005591000-memory.dmp
memory/1056-8-0x0000000005A90000-0x0000000005A91000-memory.dmp
memory/1056-7-0x00000000054F0000-0x00000000054F1000-memory.dmp
memory/1056-5-0x0000000000E40000-0x0000000000E41000-memory.dmp
memory/1056-4-0x0000000073940000-0x000000007402E000-memory.dmp