Analysis
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max time kernel
87s -
max time network
86s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
01-11-2020 06:50
Static task
static1
Behavioral task
behavioral1
Sample
f59ce75e906cc93d49e938df886d1c68.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
f59ce75e906cc93d49e938df886d1c68.exe
Resource
win10v20201028
General
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Target
f59ce75e906cc93d49e938df886d1c68.exe
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Size
796KB
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MD5
f59ce75e906cc93d49e938df886d1c68
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SHA1
694063b4a344d2ea2deecc59b7deaa69e9037461
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SHA256
3199411c6b716321009ffc3c3ccd88b406d2f90b9504bf147647c8e3c7773578
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SHA512
038742fa6896fba93f6773aef2264d441159eac054e5602005037ee7df2f8d2906d0081998c4ae7a03ae2c4194bb7d23c185e5809635659e09490d8623d90df5
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/2008-15-0x0000000004020000-0x0000000004044000-memory.dmp family_redline behavioral1/memory/2008-16-0x0000000004050000-0x0000000004072000-memory.dmp family_redline -
Executes dropped EXE 1 IoCs
Processes:
bestof.exepid process 2008 bestof.exe -
Loads dropped DLL 1 IoCs
Processes:
f59ce75e906cc93d49e938df886d1c68.exepid process 2028 f59ce75e906cc93d49e938df886d1c68.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 9 ip-api.com 15 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:
f59ce75e906cc93d49e938df886d1c68.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 f59ce75e906cc93d49e938df886d1c68.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString f59ce75e906cc93d49e938df886d1c68.exe -
Processes:
f59ce75e906cc93d49e938df886d1c68.exedescription ioc process Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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 f59ce75e906cc93d49e938df886d1c68.exe Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13 f59ce75e906cc93d49e938df886d1c68.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
bestof.exepid process 2008 bestof.exe 2008 bestof.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
bestof.exedescription pid process Token: SeDebugPrivilege 2008 bestof.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
f59ce75e906cc93d49e938df886d1c68.exebestof.execmd.exedescription pid process target process PID 2028 wrote to memory of 2008 2028 f59ce75e906cc93d49e938df886d1c68.exe bestof.exe PID 2028 wrote to memory of 2008 2028 f59ce75e906cc93d49e938df886d1c68.exe bestof.exe PID 2028 wrote to memory of 2008 2028 f59ce75e906cc93d49e938df886d1c68.exe bestof.exe PID 2028 wrote to memory of 2008 2028 f59ce75e906cc93d49e938df886d1c68.exe bestof.exe PID 2008 wrote to memory of 1716 2008 bestof.exe cmd.exe PID 2008 wrote to memory of 1716 2008 bestof.exe cmd.exe PID 2008 wrote to memory of 1716 2008 bestof.exe cmd.exe PID 2008 wrote to memory of 1716 2008 bestof.exe cmd.exe PID 1716 wrote to memory of 1928 1716 cmd.exe PING.EXE PID 1716 wrote to memory of 1928 1716 cmd.exe PING.EXE PID 1716 wrote to memory of 1928 1716 cmd.exe PING.EXE PID 1716 wrote to memory of 1928 1716 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\f59ce75e906cc93d49e938df886d1c68.exe"C:\Users\Admin\AppData\Local\Temp\f59ce75e906cc93d49e938df886d1c68.exe"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Modifies system certificate store
- Suspicious use of WriteProcessMemory
PID:2028 -
C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exebestof.exe2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2008 -
C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C ping 127.0.0.1 -n 3 > nul & del ""3⤵
- Suspicious use of WriteProcessMemory
PID:1716 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 34⤵
- Runs ping.exe
PID:1928
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