Analysis
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max time kernel
20s -
max time network
41s -
platform
windows7_x64 -
resource
win7v20210410 -
submitted
08-08-2021 16:35
Static task
static1
Behavioral task
behavioral1
Sample
usfive_20210808-181522.exe
Resource
win7v20210410
General
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Target
usfive_20210808-181522.exe
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Size
511KB
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MD5
c516b8434e20fba2c5ce93414bdd06a6
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SHA1
1fd7e3712d1d2bd96997d18280fbf0afe4569097
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SHA256
7c5200cb3685f3ba1d2a3c4bbf7b92db3a004b2443843f1b6bac425d72a5733c
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SHA512
7f13118474dd26dd5eba89cadf8e169ac15f5a488154dffbcaadb9daa29554a17ae895d5a2bc89499a35887f27beb82657e5b12fad066b1c9acade362de08e5c
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/1724-61-0x0000000004520000-0x00000000045B3000-memory.dmp family_raccoon behavioral1/memory/1724-62-0x0000000000400000-0x0000000002CB5000-memory.dmp family_raccoon -
Downloads MZ/PE file
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Deletes itself 1 IoCs
pid Process 1632 cmd.exe -
Loads dropped DLL 8 IoCs
pid Process 1724 usfive_20210808-181522.exe 1724 usfive_20210808-181522.exe 1724 usfive_20210808-181522.exe 1724 usfive_20210808-181522.exe 1724 usfive_20210808-181522.exe 1724 usfive_20210808-181522.exe 1724 usfive_20210808-181522.exe 1724 usfive_20210808-181522.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 1740 timeout.exe -
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13 usfive_20210808-181522.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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 usfive_20210808-181522.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1724 wrote to memory of 1632 1724 usfive_20210808-181522.exe 30 PID 1724 wrote to memory of 1632 1724 usfive_20210808-181522.exe 30 PID 1724 wrote to memory of 1632 1724 usfive_20210808-181522.exe 30 PID 1724 wrote to memory of 1632 1724 usfive_20210808-181522.exe 30 PID 1632 wrote to memory of 1740 1632 cmd.exe 32 PID 1632 wrote to memory of 1740 1632 cmd.exe 32 PID 1632 wrote to memory of 1740 1632 cmd.exe 32 PID 1632 wrote to memory of 1740 1632 cmd.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\usfive_20210808-181522.exe"C:\Users\Admin\AppData\Local\Temp\usfive_20210808-181522.exe"1⤵
- Loads dropped DLL
- Modifies system certificate store
- Suspicious use of WriteProcessMemory
PID:1724 -
C:\Windows\SysWOW64\cmd.execmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\usfive_20210808-181522.exe"2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
PID:1632 -
C:\Windows\SysWOW64\timeout.exetimeout /T 10 /NOBREAK3⤵
- Delays execution with timeout.exe
PID:1740
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