Analysis
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max time kernel
58s -
max time network
57s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
30-10-2020 19:33
Static task
static1
Behavioral task
behavioral1
Sample
01220b18bf1384bf2db8686425da2ae0.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
01220b18bf1384bf2db8686425da2ae0.exe
Resource
win10v20201028
General
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Target
01220b18bf1384bf2db8686425da2ae0.exe
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Size
779KB
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MD5
01220b18bf1384bf2db8686425da2ae0
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SHA1
6b48989d60d98eea455b84e8089fd54f874f793e
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SHA256
13ca4ce027439580ff4a68cdee4a2c33ec62ab6be39441d9416e7c2bc3ac40bd
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SHA512
9f0f6eec7360a07c286ae4aa3b3bdebbaa60975a9699f2596cf5ce9a7a68445a40a62f1a24f86f881cd64dacf9ae92da9fe4b2bcaec831b487177d81d3cc35fd
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 4 IoCs
Processes:
resource yara_rule behavioral1/memory/912-13-0x000000000042064E-mapping.dmp family_redline behavioral1/memory/912-12-0x0000000000400000-0x0000000000426000-memory.dmp family_redline behavioral1/memory/912-16-0x0000000000400000-0x0000000000426000-memory.dmp family_redline behavioral1/memory/912-15-0x0000000000400000-0x0000000000426000-memory.dmp family_redline -
Executes dropped EXE 2 IoCs
Processes:
bestof.exebestof.exepid process 840 bestof.exe 912 bestof.exe -
Loads dropped DLL 1 IoCs
Processes:
01220b18bf1384bf2db8686425da2ae0.exepid process 1756 01220b18bf1384bf2db8686425da2ae0.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 13 checkip.amazonaws.com -
Suspicious use of SetThreadContext 1 IoCs
Processes:
bestof.exedescription pid process target process PID 840 set thread context of 912 840 bestof.exe bestof.exe -
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:
01220b18bf1384bf2db8686425da2ae0.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 01220b18bf1384bf2db8686425da2ae0.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 01220b18bf1384bf2db8686425da2ae0.exe -
Processes:
01220b18bf1384bf2db8686425da2ae0.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13 01220b18bf1384bf2db8686425da2ae0.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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 01220b18bf1384bf2db8686425da2ae0.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
bestof.exepid process 912 bestof.exe 912 bestof.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
bestof.exebestof.exedescription pid process Token: SeDebugPrivilege 840 bestof.exe Token: SeDebugPrivilege 912 bestof.exe -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
01220b18bf1384bf2db8686425da2ae0.exebestof.exebestof.execmd.exedescription pid process target process PID 1756 wrote to memory of 840 1756 01220b18bf1384bf2db8686425da2ae0.exe bestof.exe PID 1756 wrote to memory of 840 1756 01220b18bf1384bf2db8686425da2ae0.exe bestof.exe PID 1756 wrote to memory of 840 1756 01220b18bf1384bf2db8686425da2ae0.exe bestof.exe PID 1756 wrote to memory of 840 1756 01220b18bf1384bf2db8686425da2ae0.exe bestof.exe PID 840 wrote to memory of 912 840 bestof.exe bestof.exe PID 840 wrote to memory of 912 840 bestof.exe bestof.exe PID 840 wrote to memory of 912 840 bestof.exe bestof.exe PID 840 wrote to memory of 912 840 bestof.exe bestof.exe PID 840 wrote to memory of 912 840 bestof.exe bestof.exe PID 840 wrote to memory of 912 840 bestof.exe bestof.exe PID 840 wrote to memory of 912 840 bestof.exe bestof.exe PID 840 wrote to memory of 912 840 bestof.exe bestof.exe PID 840 wrote to memory of 912 840 bestof.exe bestof.exe PID 912 wrote to memory of 1936 912 bestof.exe cmd.exe PID 912 wrote to memory of 1936 912 bestof.exe cmd.exe PID 912 wrote to memory of 1936 912 bestof.exe cmd.exe PID 912 wrote to memory of 1936 912 bestof.exe cmd.exe PID 1936 wrote to memory of 336 1936 cmd.exe PING.EXE PID 1936 wrote to memory of 336 1936 cmd.exe PING.EXE PID 1936 wrote to memory of 336 1936 cmd.exe PING.EXE PID 1936 wrote to memory of 336 1936 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\01220b18bf1384bf2db8686425da2ae0.exe"C:\Users\Admin\AppData\Local\Temp\01220b18bf1384bf2db8686425da2ae0.exe"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Modifies system certificate store
- Suspicious use of WriteProcessMemory
PID:1756 -
C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exebestof.exe2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:840 -
C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exe"C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:912 -
C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C ping 127.0.0.1 -n 3 > nul & del "C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exe"4⤵
- Suspicious use of WriteProcessMemory
PID:1936 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 35⤵
- Runs ping.exe
PID:336
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
ae71797ed71a11f172c9d03701ae88c7
SHA110a0cc04fbed99c4f0f1f908979455da6868f1eb
SHA2560215f9dd19951e07aaa5ddfed10c4b46af716a8e3ce1ccb853f0992d14ee3e34
SHA5127f6fa1d06268a9b1a3541f19f1a2636be3579d6bcb8eb6f54f53bfdd380f1a7150e32a61799aefec5b52b920e8b39213d5dacf8e24654559b1022f6fd51a5d77
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MD5
ae71797ed71a11f172c9d03701ae88c7
SHA110a0cc04fbed99c4f0f1f908979455da6868f1eb
SHA2560215f9dd19951e07aaa5ddfed10c4b46af716a8e3ce1ccb853f0992d14ee3e34
SHA5127f6fa1d06268a9b1a3541f19f1a2636be3579d6bcb8eb6f54f53bfdd380f1a7150e32a61799aefec5b52b920e8b39213d5dacf8e24654559b1022f6fd51a5d77
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MD5
ae71797ed71a11f172c9d03701ae88c7
SHA110a0cc04fbed99c4f0f1f908979455da6868f1eb
SHA2560215f9dd19951e07aaa5ddfed10c4b46af716a8e3ce1ccb853f0992d14ee3e34
SHA5127f6fa1d06268a9b1a3541f19f1a2636be3579d6bcb8eb6f54f53bfdd380f1a7150e32a61799aefec5b52b920e8b39213d5dacf8e24654559b1022f6fd51a5d77
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MD5
ae71797ed71a11f172c9d03701ae88c7
SHA110a0cc04fbed99c4f0f1f908979455da6868f1eb
SHA2560215f9dd19951e07aaa5ddfed10c4b46af716a8e3ce1ccb853f0992d14ee3e34
SHA5127f6fa1d06268a9b1a3541f19f1a2636be3579d6bcb8eb6f54f53bfdd380f1a7150e32a61799aefec5b52b920e8b39213d5dacf8e24654559b1022f6fd51a5d77