Analysis
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max time kernel
29s -
max time network
26s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
04-11-2020 06:37
Static task
static1
Behavioral task
behavioral1
Sample
22f75e559af6136493fde864eb0dcaff.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
22f75e559af6136493fde864eb0dcaff.exe
Resource
win10v20201028
General
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Target
22f75e559af6136493fde864eb0dcaff.exe
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Size
582KB
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MD5
22f75e559af6136493fde864eb0dcaff
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SHA1
893afa552f13649d3d5c2bb221a0226b3ca1b9a5
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SHA256
8adbfd848073831a188b34f13917203fc74c7fed85cc3fe64084f1c87b602a57
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SHA512
4b4b0ceb9a2b3de18a111ce82371232d190b46b18569911c4c7bdd0654f3a319aea57a7ec60ae53b7fa547d6495c686c2e2c4a21993dc7ff3c099806934cfcee
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/324-14-0x00000000041B0000-0x00000000041D4000-memory.dmp family_redline behavioral1/memory/324-16-0x00000000041E0000-0x0000000004202000-memory.dmp family_redline -
Executes dropped EXE 1 IoCs
Processes:
bestof.exepid process 324 bestof.exe -
Loads dropped DLL 1 IoCs
Processes:
22f75e559af6136493fde864eb0dcaff.exepid process 1700 22f75e559af6136493fde864eb0dcaff.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:
22f75e559af6136493fde864eb0dcaff.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 22f75e559af6136493fde864eb0dcaff.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 22f75e559af6136493fde864eb0dcaff.exe -
Processes:
22f75e559af6136493fde864eb0dcaff.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13 22f75e559af6136493fde864eb0dcaff.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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 22f75e559af6136493fde864eb0dcaff.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
bestof.exepid process 324 bestof.exe 324 bestof.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
bestof.exedescription pid process Token: SeDebugPrivilege 324 bestof.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
22f75e559af6136493fde864eb0dcaff.exebestof.execmd.exedescription pid process target process PID 1700 wrote to memory of 324 1700 22f75e559af6136493fde864eb0dcaff.exe bestof.exe PID 1700 wrote to memory of 324 1700 22f75e559af6136493fde864eb0dcaff.exe bestof.exe PID 1700 wrote to memory of 324 1700 22f75e559af6136493fde864eb0dcaff.exe bestof.exe PID 1700 wrote to memory of 324 1700 22f75e559af6136493fde864eb0dcaff.exe bestof.exe PID 324 wrote to memory of 1620 324 bestof.exe cmd.exe PID 324 wrote to memory of 1620 324 bestof.exe cmd.exe PID 324 wrote to memory of 1620 324 bestof.exe cmd.exe PID 324 wrote to memory of 1620 324 bestof.exe cmd.exe PID 1620 wrote to memory of 548 1620 cmd.exe PING.EXE PID 1620 wrote to memory of 548 1620 cmd.exe PING.EXE PID 1620 wrote to memory of 548 1620 cmd.exe PING.EXE PID 1620 wrote to memory of 548 1620 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\22f75e559af6136493fde864eb0dcaff.exe"C:\Users\Admin\AppData\Local\Temp\22f75e559af6136493fde864eb0dcaff.exe"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Modifies system certificate store
- Suspicious use of WriteProcessMemory
PID:1700 -
C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exebestof.exe2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:324 -
C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C ping 127.0.0.1 -n 3 > nul & del ""3⤵
- Suspicious use of WriteProcessMemory
PID:1620 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 34⤵
- Runs ping.exe
PID:548
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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MD5
651026d3f1f58ca2718cac5272a53192
SHA1f975cb02d4f348ae6cd3fd112b746445bd653e87
SHA256fdc884b306b56d605844a30990a565fed93cbbf6d15c04c524ee606fbb1d8931
SHA5129fe5bf0e4df06c0c67db69d6002366ee9897bdeb9c89940657f64852e9c287f1a2fc7ec2fac4377e77f97781045a4cc080318d2ec9e628da6ed9829a0ef929c3
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MD5
651026d3f1f58ca2718cac5272a53192
SHA1f975cb02d4f348ae6cd3fd112b746445bd653e87
SHA256fdc884b306b56d605844a30990a565fed93cbbf6d15c04c524ee606fbb1d8931
SHA5129fe5bf0e4df06c0c67db69d6002366ee9897bdeb9c89940657f64852e9c287f1a2fc7ec2fac4377e77f97781045a4cc080318d2ec9e628da6ed9829a0ef929c3