Analysis
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max time kernel
135s -
max time network
137s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
01-11-2020 07:20
Static task
static1
Behavioral task
behavioral1
Sample
b9aebffb65714e4ea80f049d6728d987.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
b9aebffb65714e4ea80f049d6728d987.exe
Resource
win10v20201028
General
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Target
b9aebffb65714e4ea80f049d6728d987.exe
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Size
777KB
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MD5
b9aebffb65714e4ea80f049d6728d987
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SHA1
86596c1e2798ade46a77f5731aa2e222fb614b04
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SHA256
25c6c0493d26731ba20cb44d8e580854e4807cecc2ea41dd80ed00e665acf70a
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SHA512
a726d03f7505bd23a9702fa3fc815778be3324390c7ae56881c76f0e096c0f9495a11f972450398713cb12e5c3f88eb73ce06f0feb83ebb934547060684c9f37
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/1120-10-0x0000000003E00000-0x0000000003E24000-memory.dmp family_redline behavioral1/memory/1120-11-0x0000000003E80000-0x0000000003EA2000-memory.dmp family_redline -
Executes dropped EXE 1 IoCs
Processes:
bestof.exepid process 1120 bestof.exe -
Loads dropped DLL 1 IoCs
Processes:
b9aebffb65714e4ea80f049d6728d987.exepid process 1880 b9aebffb65714e4ea80f049d6728d987.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:
b9aebffb65714e4ea80f049d6728d987.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 b9aebffb65714e4ea80f049d6728d987.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString b9aebffb65714e4ea80f049d6728d987.exe -
Processes:
b9aebffb65714e4ea80f049d6728d987.exedescription ioc process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13 b9aebffb65714e4ea80f049d6728d987.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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 b9aebffb65714e4ea80f049d6728d987.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
bestof.exepid process 1120 bestof.exe 1120 bestof.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
bestof.exedescription pid process Token: SeDebugPrivilege 1120 bestof.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
b9aebffb65714e4ea80f049d6728d987.exebestof.execmd.exedescription pid process target process PID 1880 wrote to memory of 1120 1880 b9aebffb65714e4ea80f049d6728d987.exe bestof.exe PID 1880 wrote to memory of 1120 1880 b9aebffb65714e4ea80f049d6728d987.exe bestof.exe PID 1880 wrote to memory of 1120 1880 b9aebffb65714e4ea80f049d6728d987.exe bestof.exe PID 1880 wrote to memory of 1120 1880 b9aebffb65714e4ea80f049d6728d987.exe bestof.exe PID 1120 wrote to memory of 1032 1120 bestof.exe cmd.exe PID 1120 wrote to memory of 1032 1120 bestof.exe cmd.exe PID 1120 wrote to memory of 1032 1120 bestof.exe cmd.exe PID 1120 wrote to memory of 1032 1120 bestof.exe cmd.exe PID 1032 wrote to memory of 1608 1032 cmd.exe PING.EXE PID 1032 wrote to memory of 1608 1032 cmd.exe PING.EXE PID 1032 wrote to memory of 1608 1032 cmd.exe PING.EXE PID 1032 wrote to memory of 1608 1032 cmd.exe PING.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\b9aebffb65714e4ea80f049d6728d987.exe"C:\Users\Admin\AppData\Local\Temp\b9aebffb65714e4ea80f049d6728d987.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:1120 -
C:\Windows\SysWOW64\cmd.exe"cmd.exe" /C ping 127.0.0.1 -n 3 > nul & del ""3⤵
- Suspicious use of WriteProcessMemory
PID:1032 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 34⤵
- Runs ping.exe
PID:1608
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