Analysis
- max time kernel
68s - max time network
124s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
05/07/2022, 12:42
General
- Target 8a4a1fe09544dacd804d0c2bb183850d628274a7e0dc9ea2bb6860d7a75bf61b.exe
- Size 505KB
- Sample220705-pxvxtsbbe9
- SHA256 8a4a1fe09544dacd804d0c2bb183850d628274a7e0dc9ea2bb6860d7a75bf61b
Malware Config
Signatures
- Cold Stealer
An info stealer written in C#, first seen in Feb 2022.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\8a4a1fe09544dacd804d0c2bb183850d628274a7e0dc9ea2bb6860d7a75bf61b.exe"C:\Users\Admin\AppData\Local\Temp\8a4a1fe09544dacd804d0c2bb183850d628274a7e0dc9ea2bb6860d7a75bf61b.exe"1⤵
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1180-130-0x0000000000400000-0x00000000004CC000-memory.dmp
memory/1180-131-0x0000000000400000-0x00000000004CC000-memory.dmp
memory/1180-132-0x0000000000400000-0x00000000004CC000-memory.dmp
memory/1180-134-0x0000000000400000-0x00000000004CC000-memory.dmp
memory/1180-133-0x00000000007E0000-0x000000000081B000-memory.dmp
memory/1180-135-0x0000000000400000-0x00000000004CC000-memory.dmp
memory/1180-136-0x0000000000830000-0x000000000085A000-memory.dmp
memory/1180-142-0x0000000002AB0000-0x0000000002B00000-memory.dmp
memory/1180-143-0x0000000002B00000-0x0000000002B9C000-memory.dmp
memory/1180-144-0x0000000005010000-0x00000000055B4000-memory.dmp
memory/1180-145-0x0000000005600000-0x0000000005692000-memory.dmp
memory/1180-146-0x00000000056A0000-0x0000000005706000-memory.dmp
memory/1180-147-0x0000000000400000-0x00000000004CC000-memory.dmp
memory/1180-148-0x00000000007E0000-0x000000000081B000-memory.dmp