Analysis
- max time kernel
34s - max time network
150s - platform
windows10_x64 - resource
win10v20210408 - submitted
21/08/2021, 06:37
General
- Target ac1064081f8fdbfefd0157e16f9b2761.exe
- Size 544KB
- Sample210821-e5ljr8jern
- SHA256 ca0bc652d651f727d69fbb22cc91037bc825989e759fd54f6eb0cc118286506f
Malware Config
Extracted
-
redline
-
mix21.08
-
31.44.3.94:62655
Signatures
- RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
- RedLine Payload 2 IoCs
- 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.
- Legitimate hosting services abused for malware hosting/C2 1 TTPs
- Program crash 5 IoCs
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Suspicious behavior: EnumeratesProcesses 59 IoCs
- Suspicious use of AdjustPrivilegeToken 7 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\ac1064081f8fdbfefd0157e16f9b2761.exe"C:\Users\Admin\AppData\Local\Temp\ac1064081f8fdbfefd0157e16f9b2761.exe"1⤵
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1400 -s 7562⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1400 -s 7682⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1400 -s 12082⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1400 -s 15682⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1400 -s 15842⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Users\Admin\AppData\Roaming\hyperc\apinesp.exeapinesp.exe2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1400-115-0x0000000000400000-0x0000000002D16000-memory.dmp
memory/1400-114-0x00000000049A0000-0x0000000004A6E000-memory.dmp
memory/1872-128-0x0000000007402000-0x0000000007403000-memory.dmp
memory/1872-124-0x0000000002CD0000-0x0000000002E1A000-memory.dmp
memory/1872-120-0x0000000007410000-0x0000000007411000-memory.dmp
memory/1872-121-0x0000000004CA0000-0x0000000004CBA000-memory.dmp
memory/1872-122-0x0000000007910000-0x0000000007911000-memory.dmp
memory/1872-123-0x0000000007F20000-0x0000000007F21000-memory.dmp
memory/1872-126-0x0000000000400000-0x0000000002CCC000-memory.dmp
memory/1872-127-0x0000000007400000-0x0000000007401000-memory.dmp
memory/1872-129-0x0000000007403000-0x0000000007404000-memory.dmp
memory/1872-125-0x0000000007F40000-0x0000000007F41000-memory.dmp
memory/1872-119-0x0000000004AD0000-0x0000000004AEC000-memory.dmp
memory/1872-130-0x0000000007F90000-0x0000000007F91000-memory.dmp
memory/1872-131-0x0000000007404000-0x0000000007406000-memory.dmp
memory/1872-132-0x0000000008120000-0x0000000008121000-memory.dmp
memory/1872-133-0x0000000008E00000-0x0000000008E01000-memory.dmp
memory/1872-134-0x0000000008FD0000-0x0000000008FD1000-memory.dmp
memory/1872-135-0x0000000009610000-0x0000000009611000-memory.dmp
memory/1872-136-0x0000000009960000-0x0000000009961000-memory.dmp
memory/1872-137-0x0000000009A20000-0x0000000009A21000-memory.dmp
memory/1872-138-0x0000000009B20000-0x0000000009B21000-memory.dmp