Analysis
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max time kernel
148s -
max time network
149s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
04-11-2020 06:35
Static task
static1
Behavioral task
behavioral1
Sample
6fecb44a682a1d82f0e185ccd1785402.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
6fecb44a682a1d82f0e185ccd1785402.exe
Resource
win10v20201028
General
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Target
6fecb44a682a1d82f0e185ccd1785402.exe
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Size
591KB
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MD5
6fecb44a682a1d82f0e185ccd1785402
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SHA1
9af42122c3135c9077c603b62a4baa88366bd864
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SHA256
56f814347c8ec650f905e26cb30343d437b587d8f663ac6bbf4ae4ca483898e1
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SHA512
dd0e02d922676f3a9516ddf2c86752dd27e2e03d9da02376392b2e57093b021be05e42a9fa7b45421bccf745e5ee0de44a11c0e2122b505f36b071e1ba92bc65
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/1692-10-0x00000000023F0000-0x0000000002414000-memory.dmp family_redline behavioral1/memory/1692-11-0x0000000003DC0000-0x0000000003DE2000-memory.dmp family_redline -
Executes dropped EXE 1 IoCs
Processes:
bestof.exepid process 1692 bestof.exe -
Loads dropped DLL 1 IoCs
Processes:
6fecb44a682a1d82f0e185ccd1785402.exepid process 1704 6fecb44a682a1d82f0e185ccd1785402.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:
6fecb44a682a1d82f0e185ccd1785402.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 6fecb44a682a1d82f0e185ccd1785402.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 6fecb44a682a1d82f0e185ccd1785402.exe -
Processes:
6fecb44a682a1d82f0e185ccd1785402.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13 6fecb44a682a1d82f0e185ccd1785402.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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 6fecb44a682a1d82f0e185ccd1785402.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
bestof.exepid process 1692 bestof.exe 1692 bestof.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
bestof.exedescription pid process Token: SeDebugPrivilege 1692 bestof.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
6fecb44a682a1d82f0e185ccd1785402.exebestof.execmd.exedescription pid process target process PID 1704 wrote to memory of 1692 1704 6fecb44a682a1d82f0e185ccd1785402.exe bestof.exe PID 1704 wrote to memory of 1692 1704 6fecb44a682a1d82f0e185ccd1785402.exe bestof.exe PID 1704 wrote to memory of 1692 1704 6fecb44a682a1d82f0e185ccd1785402.exe bestof.exe PID 1704 wrote to memory of 1692 1704 6fecb44a682a1d82f0e185ccd1785402.exe bestof.exe PID 1692 wrote to memory of 1700 1692 bestof.exe cmd.exe PID 1692 wrote to memory of 1700 1692 bestof.exe cmd.exe PID 1692 wrote to memory of 1700 1692 bestof.exe cmd.exe PID 1692 wrote to memory of 1700 1692 bestof.exe cmd.exe PID 1700 wrote to memory of 1688 1700 cmd.exe PING.EXE PID 1700 wrote to memory of 1688 1700 cmd.exe PING.EXE PID 1700 wrote to memory of 1688 1700 cmd.exe PING.EXE PID 1700 wrote to memory of 1688 1700 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\6fecb44a682a1d82f0e185ccd1785402.exe"C:\Users\Admin\AppData\Local\Temp\6fecb44a682a1d82f0e185ccd1785402.exe"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Modifies system certificate store
- Suspicious use of WriteProcessMemory
PID:1704 -
C:\Users\Admin\AppData\Roaming\gfersesurity\bestof.exebestof.exe2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1692 -
C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C ping 127.0.0.1 -n 3 > nul & del ""3⤵
- Suspicious use of WriteProcessMemory
PID:1700 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 34⤵
- Runs ping.exe
PID:1688
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