Analysis
- max time kernel
71s - max time network
133s - platform
windows10_x64 - resource
win10v20210408 - submitted
31/07/2021, 21:01
General
- Target 250a5f8df1e6ede5f3853add72080308.exe
- Size 100KB
- Sample210731-2fc9d48x8e
- SHA256 1d928c0f640e731208adc0736aca791af0ba7e7dfdad0800d9de2fc968ef0010
Malware Config
Signatures
- RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
- Downloads MZ/PE file
- Executes dropped EXE 1 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- 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.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 1 IoCs
- Suspicious behavior: EnumeratesProcesses 16 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 2 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\250a5f8df1e6ede5f3853add72080308.exe"C:\Users\Admin\AppData\Local\Temp\250a5f8df1e6ede5f3853add72080308.exe"1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\build.exe"C:\Users\Admin\AppData\Local\Temp\build.exe"2⤵
- Executes dropped EXE
-
C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 1152 -s 10523⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/860-123-0x0000000006570000-0x0000000006571000-memory.dmp
memory/860-124-0x00000000060F0000-0x00000000060F1000-memory.dmp
memory/860-119-0x0000000004A90000-0x0000000004A91000-memory.dmp
memory/860-120-0x0000000004970000-0x0000000004F76000-memory.dmp
memory/860-121-0x0000000004D60000-0x0000000004D61000-memory.dmp
memory/860-122-0x0000000005E70000-0x0000000005E71000-memory.dmp
memory/860-114-0x00000000000A0000-0x00000000000A1000-memory.dmp
memory/860-118-0x0000000004A50000-0x0000000004A51000-memory.dmp
memory/860-125-0x0000000006FA0000-0x0000000006FA1000-memory.dmp
memory/860-126-0x0000000006370000-0x0000000006371000-memory.dmp
memory/860-127-0x0000000006410000-0x0000000006411000-memory.dmp
memory/860-128-0x0000000006500000-0x0000000006501000-memory.dmp
memory/860-116-0x0000000004F80000-0x0000000004F81000-memory.dmp
memory/860-117-0x00000000049F0000-0x00000000049F1000-memory.dmp
memory/1152-132-0x0000000000CB0000-0x0000000000CB1000-memory.dmp