Analysis
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max time kernel
31s -
max time network
29s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
01-11-2020 06:55
Static task
static1
Behavioral task
behavioral1
Sample
ea0d75849c8fdecfa71162f7d691664d.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
ea0d75849c8fdecfa71162f7d691664d.exe
Resource
win10v20201028
General
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Target
ea0d75849c8fdecfa71162f7d691664d.exe
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Size
777KB
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MD5
ea0d75849c8fdecfa71162f7d691664d
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SHA1
e5ead4ee9150bbfe2f2fb11d88a0cdeef8517ee9
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SHA256
4495c151b1e3d27d000595b41ad9e07848489e597a43a6f28c5bcbbe65c8719f
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SHA512
ebc440f8a547ba20d4dcae926e0e6d112da7b0860a33a7c17347830f3e73bd2efca34e203c32b926531686e869a4e3ec35d017491c4ed5cef83c7b2de79d50ae
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/320-10-0x0000000003D60000-0x0000000003D84000-memory.dmp family_redline behavioral1/memory/320-11-0x0000000003E60000-0x0000000003E82000-memory.dmp family_redline -
Executes dropped EXE 1 IoCs
Processes:
bestof.exepid process 320 bestof.exe -
Loads dropped DLL 1 IoCs
Processes:
ea0d75849c8fdecfa71162f7d691664d.exepid process 336 ea0d75849c8fdecfa71162f7d691664d.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 14 checkip.amazonaws.com 8 ip-api.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:
ea0d75849c8fdecfa71162f7d691664d.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 ea0d75849c8fdecfa71162f7d691664d.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString ea0d75849c8fdecfa71162f7d691664d.exe -
Processes:
ea0d75849c8fdecfa71162f7d691664d.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13 ea0d75849c8fdecfa71162f7d691664d.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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 ea0d75849c8fdecfa71162f7d691664d.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
bestof.exepid process 320 bestof.exe 320 bestof.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
bestof.exedescription pid process Token: SeDebugPrivilege 320 bestof.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
ea0d75849c8fdecfa71162f7d691664d.exebestof.execmd.exedescription pid process target process PID 336 wrote to memory of 320 336 ea0d75849c8fdecfa71162f7d691664d.exe bestof.exe PID 336 wrote to memory of 320 336 ea0d75849c8fdecfa71162f7d691664d.exe bestof.exe PID 336 wrote to memory of 320 336 ea0d75849c8fdecfa71162f7d691664d.exe bestof.exe PID 336 wrote to memory of 320 336 ea0d75849c8fdecfa71162f7d691664d.exe bestof.exe PID 320 wrote to memory of 1560 320 bestof.exe cmd.exe PID 320 wrote to memory of 1560 320 bestof.exe cmd.exe PID 320 wrote to memory of 1560 320 bestof.exe cmd.exe PID 320 wrote to memory of 1560 320 bestof.exe cmd.exe PID 1560 wrote to memory of 1572 1560 cmd.exe PING.EXE PID 1560 wrote to memory of 1572 1560 cmd.exe PING.EXE PID 1560 wrote to memory of 1572 1560 cmd.exe PING.EXE PID 1560 wrote to memory of 1572 1560 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\ea0d75849c8fdecfa71162f7d691664d.exe"C:\Users\Admin\AppData\Local\Temp\ea0d75849c8fdecfa71162f7d691664d.exe"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Modifies system certificate store
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exebestof.exe2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C ping 127.0.0.1 -n 3 > nul & del ""3⤵
- Suspicious use of WriteProcessMemory
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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
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C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exeMD5
6943b3380427465a7998ddf3a96945a0
SHA1abb680ef5e005da1610828d518c15a250b001fd9
SHA25694e489927f1f04b50d80382b4ebbb245d8b0cd55f36dac8d7de3c543cbf361fb
SHA5125c8fb35986df56b3f6f7b850a98455ab3d767372b57838d54c9faf280826975a0f2a0828fa977469a3d5e02ce9f7bea23e8b574cf793f4264f385e871de8277d
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\Users\Admin\AppData\Roaming\gfersesurity\bestof.exeMD5
6943b3380427465a7998ddf3a96945a0
SHA1abb680ef5e005da1610828d518c15a250b001fd9
SHA25694e489927f1f04b50d80382b4ebbb245d8b0cd55f36dac8d7de3c543cbf361fb
SHA5125c8fb35986df56b3f6f7b850a98455ab3d767372b57838d54c9faf280826975a0f2a0828fa977469a3d5e02ce9f7bea23e8b574cf793f4264f385e871de8277d
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memory/320-6-0x0000000002469000-0x000000000246A000-memory.dmpFilesize
4KB
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memory/320-4-0x0000000000000000-mapping.dmp
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memory/320-7-0x0000000003DC0000-0x0000000003DD1000-memory.dmpFilesize
68KB
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memory/320-8-0x0000000003F00000-0x0000000003F11000-memory.dmpFilesize
68KB
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memory/320-9-0x0000000074500000-0x0000000074BEE000-memory.dmpFilesize
6.9MB
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memory/320-10-0x0000000003D60000-0x0000000003D84000-memory.dmpFilesize
144KB
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memory/320-11-0x0000000003E60000-0x0000000003E82000-memory.dmpFilesize
136KB
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memory/336-1-0x0000000003BD0000-0x0000000003BE1000-memory.dmpFilesize
68KB
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memory/336-0-0x0000000002569000-0x000000000256A000-memory.dmpFilesize
4KB
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memory/1492-2-0x000007FEF7D30000-0x000007FEF7FAA000-memory.dmpFilesize
2.5MB
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memory/1560-12-0x0000000000000000-mapping.dmp
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memory/1572-13-0x0000000000000000-mapping.dmp