Analysis
- max time kernel
63s - max time network
125s - platform
windows10_x64 - resource
win10v20210408 - submitted
05/09/2021, 09:51
General
- Target 7814d10ccac316da7b3616a9f4334590.exe
- Size 596KB
- Sample210905-lvg2eacffj
- SHA256 ccfa8b97f8273be6e7fee1beb2330cc45ab8f152c5d1bfa8b04f7b3b0b603433
Malware Config
Signatures
- suricata: ET MALWARE JS/Nemucod requesting EXE payload 2016-02-01
suricata: ET MALWARE JS/Nemucod requesting EXE payload 2016-02-01
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
- Downloads MZ/PE file
- 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.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Themida packer 3 IoCs
Detects Themida, an advanced Windows software protection system.
- 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.
- Checks whether UAC is enabled 1 TTPs 1 IoCs
- Legitimate hosting services abused for malware hosting/C2 1 TTPs
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- Modifies system certificate store 2 TTPs 2 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\7814d10ccac316da7b3616a9f4334590.exe"C:\Users\Admin\AppData\Local\Temp\7814d10ccac316da7b3616a9f4334590.exe"1⤵
- Modifies system certificate store
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\32.exeC:\Users\Admin\AppData\Roaming\32.exe 322⤵
- Executes dropped EXE
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/3832-124-0x0000000005430000-0x0000000005431000-memory.dmp
memory/3832-118-0x00000000001F0000-0x00000000001F1000-memory.dmp
memory/3832-120-0x0000000005A00000-0x0000000005A01000-memory.dmp
memory/3832-121-0x00000000053B0000-0x00000000053B1000-memory.dmp
memory/3832-122-0x00000000779F0000-0x0000000077B7E000-memory.dmp
memory/3832-123-0x0000000005500000-0x0000000005501000-memory.dmp
memory/3832-125-0x00000000053E0000-0x00000000053E1000-memory.dmp
memory/3832-126-0x0000000005470000-0x0000000005471000-memory.dmp
memory/3832-127-0x0000000006E10000-0x0000000006E11000-memory.dmp
memory/3832-128-0x0000000007510000-0x0000000007511000-memory.dmp
memory/3832-129-0x0000000006FE0000-0x0000000006FE1000-memory.dmp
memory/3832-130-0x0000000007100000-0x0000000007101000-memory.dmp
memory/3832-131-0x0000000007F40000-0x0000000007F41000-memory.dmp
memory/3832-132-0x00000000070D0000-0x00000000070D1000-memory.dmp
memory/3832-133-0x00000000074A0000-0x00000000074A1000-memory.dmp
memory/3832-134-0x0000000007B90000-0x0000000007B91000-memory.dmp