Analysis
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max time kernel
136s -
max time network
138s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
04-11-2020 06:41
Static task
static1
Behavioral task
behavioral1
Sample
9c2827e7f7a4c9a7c47e88f052c070b1.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
9c2827e7f7a4c9a7c47e88f052c070b1.exe
Resource
win10v20201028
General
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Target
9c2827e7f7a4c9a7c47e88f052c070b1.exe
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Size
582KB
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MD5
9c2827e7f7a4c9a7c47e88f052c070b1
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SHA1
eb6d77adf05e13c95cce107d4e6e59df0a42f673
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SHA256
d7857e0b29661872c17e025785d8ec9074f580f9837ba148699756fecf2b1779
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SHA512
57f739684bae926ef6d0a90dc1db828a9917e12aa5b235d7a4f0780d62b86a631f4aa4eaeae0fa7e610eed0051aca806969987e7457e071a100b9e79fdc2e607
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/760-10-0x0000000002350000-0x0000000002374000-memory.dmp family_redline behavioral1/memory/760-11-0x0000000003CE0000-0x0000000003D02000-memory.dmp family_redline -
Executes dropped EXE 1 IoCs
Processes:
bestof.exepid process 760 bestof.exe -
Loads dropped DLL 1 IoCs
Processes:
9c2827e7f7a4c9a7c47e88f052c070b1.exepid process 1880 9c2827e7f7a4c9a7c47e88f052c070b1.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 15 checkip.amazonaws.com 9 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:
9c2827e7f7a4c9a7c47e88f052c070b1.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 9c2827e7f7a4c9a7c47e88f052c070b1.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 9c2827e7f7a4c9a7c47e88f052c070b1.exe -
Processes:
9c2827e7f7a4c9a7c47e88f052c070b1.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13 9c2827e7f7a4c9a7c47e88f052c070b1.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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 9c2827e7f7a4c9a7c47e88f052c070b1.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
bestof.exepid process 760 bestof.exe 760 bestof.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
bestof.exedescription pid process Token: SeDebugPrivilege 760 bestof.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
9c2827e7f7a4c9a7c47e88f052c070b1.exebestof.execmd.exedescription pid process target process PID 1880 wrote to memory of 760 1880 9c2827e7f7a4c9a7c47e88f052c070b1.exe bestof.exe PID 1880 wrote to memory of 760 1880 9c2827e7f7a4c9a7c47e88f052c070b1.exe bestof.exe PID 1880 wrote to memory of 760 1880 9c2827e7f7a4c9a7c47e88f052c070b1.exe bestof.exe PID 1880 wrote to memory of 760 1880 9c2827e7f7a4c9a7c47e88f052c070b1.exe bestof.exe PID 760 wrote to memory of 1620 760 bestof.exe cmd.exe PID 760 wrote to memory of 1620 760 bestof.exe cmd.exe PID 760 wrote to memory of 1620 760 bestof.exe cmd.exe PID 760 wrote to memory of 1620 760 bestof.exe cmd.exe PID 1620 wrote to memory of 1580 1620 cmd.exe PING.EXE PID 1620 wrote to memory of 1580 1620 cmd.exe PING.EXE PID 1620 wrote to memory of 1580 1620 cmd.exe PING.EXE PID 1620 wrote to memory of 1580 1620 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\9c2827e7f7a4c9a7c47e88f052c070b1.exe"C:\Users\Admin\AppData\Local\Temp\9c2827e7f7a4c9a7c47e88f052c070b1.exe"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Modifies system certificate store
- Suspicious use of WriteProcessMemory
PID:1880 -
C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exebestof.exe2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:760 -
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:1580
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