Analysis
- max time kernel
47s - max time network
129s - platform
windows10_x64 - resource
win10v20210408 - submitted
24/08/2021, 06:32
General
- Target a20f5887bc06dda3e4c4d59d9b00f3ee.exe
- Size 4.6MB
- Sample210824-h25jftpkdn
- SHA256 2b3c1a836d3218ccea9f8b01bb6be6949507298f2da9625f8315aefe89bed30b
Malware Config
Signatures
- Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
- 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 1 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
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\a20f5887bc06dda3e4c4d59d9b00f3ee.exe"C:\Users\Admin\AppData\Local\Temp\a20f5887bc06dda3e4c4d59d9b00f3ee.exe"1⤵
- 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/740-115-0x0000000077D80000-0x0000000077F0E000-memory.dmp
memory/740-116-0x00000000000D0000-0x00000000000D1000-memory.dmp
memory/740-118-0x0000000005E90000-0x0000000005E91000-memory.dmp
memory/740-119-0x00000000069A0000-0x00000000069A1000-memory.dmp
memory/740-120-0x0000000005B00000-0x0000000005B01000-memory.dmp
memory/740-121-0x0000000005AB0000-0x0000000005AB1000-memory.dmp
memory/740-122-0x0000000005CB0000-0x0000000005CB1000-memory.dmp
memory/740-123-0x0000000006820000-0x0000000006821000-memory.dmp
memory/740-124-0x0000000005990000-0x0000000005E8E000-memory.dmp
memory/740-125-0x00000000080F0000-0x00000000080F1000-memory.dmp
memory/740-126-0x0000000008D90000-0x0000000008D91000-memory.dmp
memory/740-127-0x0000000009490000-0x0000000009491000-memory.dmp
memory/740-128-0x0000000008C90000-0x0000000008C91000-memory.dmp
memory/740-129-0x0000000008D70000-0x0000000008D71000-memory.dmp
memory/740-130-0x0000000009260000-0x0000000009261000-memory.dmp
memory/740-131-0x0000000009430000-0x0000000009431000-memory.dmp