Analysis
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max time kernel
29s -
max time network
29s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
01-11-2020 07:10
Static task
static1
Behavioral task
behavioral1
Sample
c5f9ffd8890ca4722cd2f6ebdc39566f.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
c5f9ffd8890ca4722cd2f6ebdc39566f.exe
Resource
win10v20201028
General
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Target
c5f9ffd8890ca4722cd2f6ebdc39566f.exe
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Size
778KB
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MD5
c5f9ffd8890ca4722cd2f6ebdc39566f
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SHA1
ddeaf76ff2426dc3a7202dc3e84ed4bcbfa97893
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SHA256
1ba87aa4f285a9e9cf905da0bc041df4eed434e6bff38aa189387dae4ba90dc5
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SHA512
9c0c3811139a8d35ef2debaea44bad4ab34055394d578ac7fc2646b0c2eaa786a3ddf0fa283a134f551ea254ec1ebdecd22940434e783ba10666299cce069694
Malware Config
Signatures
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RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine Payload 2 IoCs
Processes:
resource yara_rule behavioral1/memory/2012-12-0x0000000003F10000-0x0000000003F34000-memory.dmp family_redline behavioral1/memory/2012-13-0x0000000006630000-0x0000000006652000-memory.dmp family_redline -
Executes dropped EXE 1 IoCs
Processes:
bestof.exepid process 2012 bestof.exe -
Loads dropped DLL 1 IoCs
Processes:
c5f9ffd8890ca4722cd2f6ebdc39566f.exepid process 2036 c5f9ffd8890ca4722cd2f6ebdc39566f.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Legitimate hosting services abused for malware hosting/C2 1 TTPs
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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.
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
c5f9ffd8890ca4722cd2f6ebdc39566f.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 c5f9ffd8890ca4722cd2f6ebdc39566f.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString c5f9ffd8890ca4722cd2f6ebdc39566f.exe -
Processes:
c5f9ffd8890ca4722cd2f6ebdc39566f.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13 c5f9ffd8890ca4722cd2f6ebdc39566f.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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 c5f9ffd8890ca4722cd2f6ebdc39566f.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
bestof.exepid process 2012 bestof.exe 2012 bestof.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
bestof.exedescription pid process Token: SeDebugPrivilege 2012 bestof.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
c5f9ffd8890ca4722cd2f6ebdc39566f.exebestof.execmd.exedescription pid process target process PID 2036 wrote to memory of 2012 2036 c5f9ffd8890ca4722cd2f6ebdc39566f.exe bestof.exe PID 2036 wrote to memory of 2012 2036 c5f9ffd8890ca4722cd2f6ebdc39566f.exe bestof.exe PID 2036 wrote to memory of 2012 2036 c5f9ffd8890ca4722cd2f6ebdc39566f.exe bestof.exe PID 2036 wrote to memory of 2012 2036 c5f9ffd8890ca4722cd2f6ebdc39566f.exe bestof.exe PID 2012 wrote to memory of 1696 2012 bestof.exe cmd.exe PID 2012 wrote to memory of 1696 2012 bestof.exe cmd.exe PID 2012 wrote to memory of 1696 2012 bestof.exe cmd.exe PID 2012 wrote to memory of 1696 2012 bestof.exe cmd.exe PID 1696 wrote to memory of 1080 1696 cmd.exe PING.EXE PID 1696 wrote to memory of 1080 1696 cmd.exe PING.EXE PID 1696 wrote to memory of 1080 1696 cmd.exe PING.EXE PID 1696 wrote to memory of 1080 1696 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\c5f9ffd8890ca4722cd2f6ebdc39566f.exe"C:\Users\Admin\AppData\Local\Temp\c5f9ffd8890ca4722cd2f6ebdc39566f.exe"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Modifies system certificate store
- Suspicious use of WriteProcessMemory
PID:2036 -
C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exebestof.exe2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2012 -
C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C ping 127.0.0.1 -n 3 > nul & del ""3⤵
- Suspicious use of WriteProcessMemory
PID:1696 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 34⤵
- Runs ping.exe
PID:1080
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
6943b3380427465a7998ddf3a96945a0
SHA1abb680ef5e005da1610828d518c15a250b001fd9
SHA25694e489927f1f04b50d80382b4ebbb245d8b0cd55f36dac8d7de3c543cbf361fb
SHA5125c8fb35986df56b3f6f7b850a98455ab3d767372b57838d54c9faf280826975a0f2a0828fa977469a3d5e02ce9f7bea23e8b574cf793f4264f385e871de8277d
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MD5
6943b3380427465a7998ddf3a96945a0
SHA1abb680ef5e005da1610828d518c15a250b001fd9
SHA25694e489927f1f04b50d80382b4ebbb245d8b0cd55f36dac8d7de3c543cbf361fb
SHA5125c8fb35986df56b3f6f7b850a98455ab3d767372b57838d54c9faf280826975a0f2a0828fa977469a3d5e02ce9f7bea23e8b574cf793f4264f385e871de8277d