Analysis
-
max time kernel
28s -
max time network
24s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
01-11-2020 07:03
Static task
static1
Behavioral task
behavioral1
Sample
d02075e11831e9b95ca654063a249554.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
d02075e11831e9b95ca654063a249554.exe
Resource
win10v20201028
General
-
Target
d02075e11831e9b95ca654063a249554.exe
-
Size
780KB
-
MD5
d02075e11831e9b95ca654063a249554
-
SHA1
ce46e830a3bdd48891c67e07786d3523ed89b9f5
-
SHA256
9d7cd70852435e73846e3050cf060d345173d44df492593ea0821d023c0e7f67
-
SHA512
5022601bc9d6436d4ac903d49dee44e89f8bf91eac6b8b240aa511c241946bfa43c312ae9b32b66a9c40e52bf48d06e3b374c4c7088af05eb54bec6e3133f0d6
Malware Config
Signatures
-
RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
-
RedLine Payload 2 IoCs
Processes:
resource yara_rule behavioral1/memory/396-15-0x0000000003DE0000-0x0000000003E04000-memory.dmp family_redline behavioral1/memory/396-16-0x0000000003E30000-0x0000000003E52000-memory.dmp family_redline -
Executes dropped EXE 1 IoCs
Processes:
bestof.exepid process 396 bestof.exe -
Loads dropped DLL 1 IoCs
Processes:
d02075e11831e9b95ca654063a249554.exepid process 1732 d02075e11831e9b95ca654063a249554.exe -
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.
-
Legitimate hosting services abused for malware hosting/C2 1 TTPs
-
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 8 ip-api.com 14 checkip.amazonaws.com -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
-
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
d02075e11831e9b95ca654063a249554.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 d02075e11831e9b95ca654063a249554.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString d02075e11831e9b95ca654063a249554.exe -
Processes:
d02075e11831e9b95ca654063a249554.exedescription ioc process Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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 d02075e11831e9b95ca654063a249554.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13 d02075e11831e9b95ca654063a249554.exe -
Runs ping.exe 1 TTPs 1 IoCs
-
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
bestof.exepid process 396 bestof.exe 396 bestof.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
bestof.exedescription pid process Token: SeDebugPrivilege 396 bestof.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
d02075e11831e9b95ca654063a249554.exebestof.execmd.exedescription pid process target process PID 1732 wrote to memory of 396 1732 d02075e11831e9b95ca654063a249554.exe bestof.exe PID 1732 wrote to memory of 396 1732 d02075e11831e9b95ca654063a249554.exe bestof.exe PID 1732 wrote to memory of 396 1732 d02075e11831e9b95ca654063a249554.exe bestof.exe PID 1732 wrote to memory of 396 1732 d02075e11831e9b95ca654063a249554.exe bestof.exe PID 396 wrote to memory of 1720 396 bestof.exe cmd.exe PID 396 wrote to memory of 1720 396 bestof.exe cmd.exe PID 396 wrote to memory of 1720 396 bestof.exe cmd.exe PID 396 wrote to memory of 1720 396 bestof.exe cmd.exe PID 1720 wrote to memory of 1544 1720 cmd.exe PING.EXE PID 1720 wrote to memory of 1544 1720 cmd.exe PING.EXE PID 1720 wrote to memory of 1544 1720 cmd.exe PING.EXE PID 1720 wrote to memory of 1544 1720 cmd.exe PING.EXE
Processes
-
C:\Users\Admin\AppData\Local\Temp\d02075e11831e9b95ca654063a249554.exe"C:\Users\Admin\AppData\Local\Temp\d02075e11831e9b95ca654063a249554.exe"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Modifies system certificate store
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exebestof.exe2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C ping 127.0.0.1 -n 3 > nul & del ""3⤵
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 34⤵
- Runs ping.exe
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exeMD5
6943b3380427465a7998ddf3a96945a0
SHA1abb680ef5e005da1610828d518c15a250b001fd9
SHA25694e489927f1f04b50d80382b4ebbb245d8b0cd55f36dac8d7de3c543cbf361fb
SHA5125c8fb35986df56b3f6f7b850a98455ab3d767372b57838d54c9faf280826975a0f2a0828fa977469a3d5e02ce9f7bea23e8b574cf793f4264f385e871de8277d
-
\Users\Admin\AppData\Roaming\gfersesurity\bestof.exeMD5
6943b3380427465a7998ddf3a96945a0
SHA1abb680ef5e005da1610828d518c15a250b001fd9
SHA25694e489927f1f04b50d80382b4ebbb245d8b0cd55f36dac8d7de3c543cbf361fb
SHA5125c8fb35986df56b3f6f7b850a98455ab3d767372b57838d54c9faf280826975a0f2a0828fa977469a3d5e02ce9f7bea23e8b574cf793f4264f385e871de8277d
-
memory/396-11-0x00000000024A9000-0x00000000024AA000-memory.dmpFilesize
4KB
-
memory/396-9-0x0000000000000000-mapping.dmp
-
memory/396-12-0x0000000003E80000-0x0000000003E91000-memory.dmpFilesize
68KB
-
memory/396-13-0x0000000003E80000-0x0000000003E91000-memory.dmpFilesize
68KB
-
memory/396-14-0x0000000074610000-0x0000000074CFE000-memory.dmpFilesize
6.9MB
-
memory/396-15-0x0000000003DE0000-0x0000000003E04000-memory.dmpFilesize
144KB
-
memory/396-16-0x0000000003E30000-0x0000000003E52000-memory.dmpFilesize
136KB
-
memory/1364-7-0x000007FEF6B80000-0x000007FEF6DFA000-memory.dmpFilesize
2.5MB
-
memory/1544-19-0x0000000000000000-mapping.dmp
-
memory/1720-17-0x0000000000000000-mapping.dmp
-
memory/1732-1-0x0000000003EF0000-0x0000000003F01000-memory.dmpFilesize
68KB
-
memory/1732-0-0x00000000024F7000-0x00000000024F8000-memory.dmpFilesize
4KB