Analysis
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max time kernel
19s -
max time network
55s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
08/08/2021, 17:16
Static task
static1
Behavioral task
behavioral1
Sample
usfive_20210808-184641.exe
Resource
win7v20210410
General
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Target
usfive_20210808-184641.exe
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Size
512KB
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MD5
f61ebb45ff423851fc48133bbcf49a83
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SHA1
71ac9fe46382fff620ffccb01d13c91233519f31
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SHA256
7e3b21ad9998cf8cb40f6471307c42d81f7ade43d52db956205cb251e3ba2579
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SHA512
07444eb698d93411cf289a5154b9989f3960bedbaf114d4325fb7217222ce9634691d5b4f9549ca4d77a5ecaf1e91ff152278b7cc5236476bd3680de1e7b64e6
Malware Config
Extracted
raccoon
c58b0b3f1f90ad7552aaf8e84180b7580f397001
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url4cnc
https://telete.in/h_electricryptors2
Signatures
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Raccoon Stealer Payload 2 IoCs
resource yara_rule behavioral1/memory/288-60-0x0000000002D40000-0x0000000002DD3000-memory.dmp family_raccoon behavioral1/memory/288-61-0x0000000000400000-0x0000000002CB6000-memory.dmp family_raccoon -
Downloads MZ/PE file
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Deletes itself 1 IoCs
pid Process 1784 cmd.exe -
Loads dropped DLL 8 IoCs
pid Process 288 usfive_20210808-184641.exe 288 usfive_20210808-184641.exe 288 usfive_20210808-184641.exe 288 usfive_20210808-184641.exe 288 usfive_20210808-184641.exe 288 usfive_20210808-184641.exe 288 usfive_20210808-184641.exe 288 usfive_20210808-184641.exe -
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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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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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Delays execution with timeout.exe 1 IoCs
pid Process 836 timeout.exe -
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13 usfive_20210808-184641.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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 usfive_20210808-184641.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 288 wrote to memory of 1784 288 usfive_20210808-184641.exe 30 PID 288 wrote to memory of 1784 288 usfive_20210808-184641.exe 30 PID 288 wrote to memory of 1784 288 usfive_20210808-184641.exe 30 PID 288 wrote to memory of 1784 288 usfive_20210808-184641.exe 30 PID 1784 wrote to memory of 836 1784 cmd.exe 32 PID 1784 wrote to memory of 836 1784 cmd.exe 32 PID 1784 wrote to memory of 836 1784 cmd.exe 32 PID 1784 wrote to memory of 836 1784 cmd.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\usfive_20210808-184641.exe"C:\Users\Admin\AppData\Local\Temp\usfive_20210808-184641.exe"1⤵
- Loads dropped DLL
- Modifies system certificate store
- Suspicious use of WriteProcessMemory
PID:288 -
C:\Windows\SysWOW64\cmd.execmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\usfive_20210808-184641.exe"2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:1784 -
C:\Windows\SysWOW64\timeout.exetimeout /T 10 /NOBREAK3⤵
- Delays execution with timeout.exe
PID:836
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