Analysis
- max time kernel
149s - max time network
152s - platform
windows10_x64 - resource
win10-en-20210920 - submitted
01/10/2021, 08:58
Static task
static1
Behavioral task
behavioral1
Sample
af4d1f1a0887822d0c2fb02f3e6c3ad6.exe
Resource
win7v20210408
General
- Target af4d1f1a0887822d0c2fb02f3e6c3ad6.exe
- Size 555KB
- Sample211001-kw669abdaq
- SHA256 e108e203e4b31615afcf88bddfed51dd499f6a1628fa93b7d9072400259ecc5b
- MD5 af4d1f1a0887822d0c2fb02f3e6c3ad6
- SHA1 01c5fadaa26b93f20d66a3a0982ef48baa970db2
- SHA512 a2fd88dc1f56fe4772a4c364aa772d96305f116baf2b65f1b4a251c6fea26152766aeeda8b287eb12184432fb28de32788f77f1194c400c3730edff603e75e6e
- MD5 SHA1 SHA512
Malware Config
Extracted
-
raccoon
-
f6d7183c9e82d2a9b81e6c0608450aa66cefb51f
-
url4cnc
https://t.me/justoprostohello
Signatures
- suricata: ET MALWARE Win32.Raccoon Stealer CnC Activity (dependency download)
suricata: ET MALWARE Win32.Raccoon Stealer CnC Activity (dependency download)
- suricata: ET MALWARE Win32.Raccoon Stealer Data Exfil Attempt
suricata: ET MALWARE Win32.Raccoon Stealer Data Exfil Attempt
- Downloads MZ/PE file
- Executes dropped EXE 2 IoCs
pid Process 3452 uxrDsvVPLt.exe 1136 sihost.exe - Loads dropped DLL 6 IoCs
pid Process 2392 af4d1f1a0887822d0c2fb02f3e6c3ad6.exe 2392 af4d1f1a0887822d0c2fb02f3e6c3ad6.exe 2392 af4d1f1a0887822d0c2fb02f3e6c3ad6.exe 2392 af4d1f1a0887822d0c2fb02f3e6c3ad6.exe 2392 af4d1f1a0887822d0c2fb02f3e6c3ad6.exe 2392 af4d1f1a0887822d0c2fb02f3e6c3ad6.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.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 848 schtasks.exe 1524 schtasks.exe - Delays execution with timeout.exe 1 IoCs
pid Process 4024 timeout.exe - Suspicious use of WriteProcessMemory 15 IoCs
description pid Process procid_target PID 2392 wrote to memory of 3452 2392 af4d1f1a0887822d0c2fb02f3e6c3ad6.exe 70 PID 2392 wrote to memory of 3452 2392 af4d1f1a0887822d0c2fb02f3e6c3ad6.exe 70 PID 2392 wrote to memory of 3452 2392 af4d1f1a0887822d0c2fb02f3e6c3ad6.exe 70 PID 2392 wrote to memory of 3096 2392 af4d1f1a0887822d0c2fb02f3e6c3ad6.exe 71 PID 2392 wrote to memory of 3096 2392 af4d1f1a0887822d0c2fb02f3e6c3ad6.exe 71 PID 2392 wrote to memory of 3096 2392 af4d1f1a0887822d0c2fb02f3e6c3ad6.exe 71 PID 3096 wrote to memory of 4024 3096 cmd.exe 73 PID 3096 wrote to memory of 4024 3096 cmd.exe 73 PID 3096 wrote to memory of 4024 3096 cmd.exe 73 PID 3452 wrote to memory of 848 3452 uxrDsvVPLt.exe 74 PID 3452 wrote to memory of 848 3452 uxrDsvVPLt.exe 74 PID 3452 wrote to memory of 848 3452 uxrDsvVPLt.exe 74 PID 1136 wrote to memory of 1524 1136 sihost.exe 77 PID 1136 wrote to memory of 1524 1136 sihost.exe 77 PID 1136 wrote to memory of 1524 1136 sihost.exe 77
Processes
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C:\Users\Admin\AppData\Local\Temp\af4d1f1a0887822d0c2fb02f3e6c3ad6.exe"C:\Users\Admin\AppData\Local\Temp\af4d1f1a0887822d0c2fb02f3e6c3ad6.exe"1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2392 -
C:\Users\Admin\AppData\Local\Temp\uxrDsvVPLt.exe"C:\Users\Admin\AppData\Local\Temp\uxrDsvVPLt.exe"2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3452 -
C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\sihost.exe"3⤵
- Creates scheduled task(s)
PID:848
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C:\Windows\SysWOW64\cmd.execmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\af4d1f1a0887822d0c2fb02f3e6c3ad6.exe"2⤵
- Suspicious use of WriteProcessMemory
PID:3096 -
C:\Windows\SysWOW64\timeout.exetimeout /T 10 /NOBREAK3⤵
- Delays execution with timeout.exe
PID:4024
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-
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C:\Users\Admin\AppData\Roaming\Microsoft\Network\sihost.exeC:\Users\Admin\AppData\Roaming\Microsoft\Network\sihost.exe1⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1136 -
C:\Windows\SysWOW64\schtasks.exe/C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\sihost.exe"2⤵
- Creates scheduled task(s)
PID:1524
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