Analysis
- max time kernel
90s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
05/07/2022, 12:43
General
- Target 9e21e39cd313c6974c5ca9133f9c29acd59f09a90d2c78cf6302516fd4d93897.exe
- Size 653KB
- Sample220705-px4jzabbf3
- SHA256 9e21e39cd313c6974c5ca9133f9c29acd59f09a90d2c78cf6302516fd4d93897
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\9e21e39cd313c6974c5ca9133f9c29acd59f09a90d2c78cf6302516fd4d93897.exe"C:\Users\Admin\AppData\Local\Temp\9e21e39cd313c6974c5ca9133f9c29acd59f09a90d2c78cf6302516fd4d93897.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/2324-130-0x0000000000400000-0x00000000004F1000-memory.dmp
memory/2324-131-0x0000000000400000-0x00000000004F1000-memory.dmp
memory/2324-133-0x00000000007E0000-0x0000000000819000-memory.dmp
memory/2324-132-0x0000000000400000-0x00000000004F1000-memory.dmp
memory/2324-134-0x0000000000400000-0x00000000004F1000-memory.dmp
memory/2324-135-0x00000000007B0000-0x00000000007DA000-memory.dmp
memory/2324-141-0x0000000002B00000-0x0000000002B50000-memory.dmp
memory/2324-142-0x0000000002B50000-0x0000000002BEC000-memory.dmp
memory/2324-143-0x0000000005240000-0x00000000057E4000-memory.dmp
memory/2324-144-0x0000000005830000-0x00000000058C2000-memory.dmp
memory/2324-145-0x00000000058D0000-0x0000000005936000-memory.dmp