Analysis
- max time kernel
117s - max time network
121s - platform
windows7_x64 - resource
win7-en-20211208 - submitted
15/12/2021, 04:49
General
- Target b36de850fd13d0662d85125a47fc558c.exe
- Size 1.3MB
- Sample211215-ffn9aahgap
- SHA256 4872e763d2a902c252dc3932e1ff2f68eadea9ab52e5031239885c41212eb978
Malware Config
Signatures
- RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
- RedLine Payload 1 IoCs
- 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 4 IoCs
BIOS information is often read in order to detect sandboxing environments.
- Loads dropped DLL 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.
- Checks whether UAC is enabled 1 TTPs 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\b36de850fd13d0662d85125a47fc558c.exe"C:\Users\Admin\AppData\Local\Temp\b36de850fd13d0662d85125a47fc558c.exe"1⤵
- Checks BIOS information in registry
- Loads dropped DLL
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\WindowsDefender.exe"C:\Users\Admin\AppData\Local\Temp\WindowsDefender.exe"2⤵
- Executes dropped EXE
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"3⤵
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/1156-121-0x00000000033A0000-0x00000000033A1000-memory.dmp
memory/1156-120-0x00000000033A0000-0x00000000033A1000-memory.dmp
memory/1156-126-0x00000000033A0000-0x00000000033A1000-memory.dmp
memory/1156-125-0x00000000033A0000-0x00000000033A1000-memory.dmp
memory/1156-123-0x00000000033A0000-0x00000000033A1000-memory.dmp
memory/1156-114-0x00000000033B0000-0x00000000033B1000-memory.dmp
memory/1156-122-0x00000000033A0000-0x00000000033A1000-memory.dmp
memory/1156-118-0x0000000000400000-0x0000000000723000-memory.dmp
memory/1156-127-0x00000000003E0000-0x00000000003E1000-memory.dmp
memory/1156-124-0x00000000033A0000-0x00000000033A1000-memory.dmp
memory/1156-117-0x00000000033A0000-0x00000000033A1000-memory.dmp
memory/1156-119-0x00000000033A0000-0x00000000033A1000-memory.dmp
memory/1156-116-0x00000000033A0000-0x00000000033A1000-memory.dmp
memory/1156-115-0x00000000033A0000-0x00000000033A1000-memory.dmp
memory/1156-113-0x0000000000400000-0x0000000000723000-memory.dmp
memory/1156-112-0x0000000000400000-0x0000000000723000-memory.dmp
memory/1156-111-0x0000000000400000-0x0000000000723000-memory.dmp
memory/1156-128-0x00000000003E0000-0x00000000003E1000-memory.dmp
memory/1584-74-0x00000000008E0000-0x00000000008E1000-memory.dmp
memory/1584-104-0x0000000000400000-0x0000000000402000-memory.dmp
memory/1584-78-0x0000000002350000-0x0000000002351000-memory.dmp
memory/1584-77-0x0000000003430000-0x0000000003431000-memory.dmp
memory/1584-80-0x0000000002310000-0x0000000002311000-memory.dmp
memory/1584-79-0x0000000002360000-0x0000000002361000-memory.dmp
memory/1584-81-0x0000000002380000-0x0000000002381000-memory.dmp
memory/1584-82-0x0000000002340000-0x0000000002341000-memory.dmp
memory/1584-84-0x00000000023A0000-0x00000000023A1000-memory.dmp
memory/1584-83-0x0000000002330000-0x0000000002331000-memory.dmp
memory/1584-86-0x0000000003430000-0x0000000003431000-memory.dmp
memory/1584-85-0x0000000003430000-0x0000000003431000-memory.dmp
memory/1584-87-0x0000000003430000-0x0000000003431000-memory.dmp
memory/1584-89-0x0000000003430000-0x0000000003431000-memory.dmp
memory/1584-88-0x0000000003430000-0x0000000003431000-memory.dmp
memory/1584-90-0x00000000003D0000-0x00000000003D1000-memory.dmp
memory/1584-91-0x00000000024F0000-0x00000000024F1000-memory.dmp
memory/1584-93-0x00000000024B0000-0x00000000024B1000-memory.dmp
memory/1584-92-0x0000000002500000-0x0000000002501000-memory.dmp
memory/1584-95-0x00000000024E0000-0x00000000024E1000-memory.dmp
memory/1584-94-0x0000000002520000-0x0000000002521000-memory.dmp
memory/1584-97-0x0000000002540000-0x0000000002541000-memory.dmp
memory/1584-96-0x00000000024D0000-0x00000000024D1000-memory.dmp
memory/1584-99-0x00000000003D0000-0x00000000003D1000-memory.dmp
memory/1584-98-0x00000000003D0000-0x00000000003D1000-memory.dmp
memory/1584-100-0x0000000002530000-0x0000000002531000-memory.dmp
memory/1584-102-0x00000000003D0000-0x00000000003D1000-memory.dmp
memory/1584-101-0x0000000000AF0000-0x0000000000AF1000-memory.dmp
memory/1584-103-0x00000000003D0000-0x00000000003D1000-memory.dmp
memory/1584-75-0x0000000000AE0000-0x0000000000AE1000-memory.dmp
memory/1584-106-0x0000000005AC0000-0x0000000005AC1000-memory.dmp
memory/1584-76-0x0000000003430000-0x0000000003431000-memory.dmp
memory/1584-73-0x0000000000870000-0x0000000000871000-memory.dmp
memory/1584-54-0x0000000076121000-0x0000000076123000-memory.dmp
memory/1584-71-0x00000000008B0000-0x00000000008B1000-memory.dmp
memory/1584-72-0x00000000003E0000-0x00000000003E1000-memory.dmp
memory/1584-69-0x0000000003430000-0x0000000003431000-memory.dmp
memory/1584-70-0x00000000008A0000-0x00000000008A1000-memory.dmp
memory/1584-67-0x0000000003430000-0x0000000003431000-memory.dmp
memory/1584-68-0x0000000003430000-0x0000000003431000-memory.dmp
memory/1584-65-0x0000000003440000-0x0000000003441000-memory.dmp
memory/1584-66-0x0000000003430000-0x0000000003431000-memory.dmp
memory/1584-63-0x0000000002490000-0x0000000002491000-memory.dmp
memory/1584-64-0x0000000002460000-0x0000000002461000-memory.dmp
memory/1584-62-0x00000000023E0000-0x00000000023E1000-memory.dmp
memory/1584-61-0x00000000023F0000-0x00000000023F1000-memory.dmp
memory/1584-59-0x00000000023C0000-0x00000000023C1000-memory.dmp
memory/1584-60-0x0000000002470000-0x0000000002471000-memory.dmp
memory/1584-57-0x0000000002400000-0x0000000002401000-memory.dmp
memory/1584-58-0x0000000002410000-0x0000000002411000-memory.dmp
memory/1584-56-0x0000000000290000-0x00000000002F0000-memory.dmp
memory/1584-55-0x0000000000400000-0x0000000000762000-memory.dmp
memory/1716-135-0x0000000000400000-0x0000000000418000-memory.dmp
memory/1716-134-0x0000000000400000-0x0000000000418000-memory.dmp
memory/1716-141-0x0000000000400000-0x0000000000418000-memory.dmp
memory/1716-142-0x0000000000400000-0x0000000000418000-memory.dmp
memory/1716-144-0x0000000000400000-0x0000000000401000-memory.dmp