Analysis
- max time kernel
4294181s - max time network
128s - platform
windows7_x64 - resource
win7-20220311-en - submitted
21/03/2022, 16:27
Static task
static1
Behavioral task
behavioral1
Sample
9c5bea6a72a2f471aa79a87d526c1897.exe
Resource
win7-20220311-en
0 signatures
0 seconds
General
- Target 9c5bea6a72a2f471aa79a87d526c1897.exe
- Size 170KB
- Sample220321-tx5t9ahdhm
- SHA256 b840f10ae378fa15f8570f6eb208e2f280618bd49ade560eca00c93b6a4bd7d9
- MD5 9c5bea6a72a2f471aa79a87d526c1897
- SHA1 4a22e3cf76389772ffab03301ffd7c3c65ce71e4
- SHA512 d3ecba03dbdd0c0121cdd26209e5ec4017f91defc87733e15e6bfff6f2432dfad3b849306a603a9b177f15e72a718ac95213879703947bb0ec5877ea39d3a925
- MD5 SHA1 SHA512
Malware Config
Signatures
- XMRig Miner Payload 11 IoCs
resource yara_rule behavioral1/memory/1676-132-0x0000000140000000-0x0000000140829000-memory.dmp xmrig behavioral1/memory/1676-134-0x0000000140000000-0x0000000140829000-memory.dmp xmrig behavioral1/memory/1676-136-0x0000000140000000-0x0000000140829000-memory.dmp xmrig behavioral1/memory/1676-138-0x0000000140000000-0x0000000140829000-memory.dmp xmrig behavioral1/memory/1676-140-0x0000000140000000-0x0000000140829000-memory.dmp xmrig behavioral1/memory/1676-142-0x0000000140000000-0x0000000140829000-memory.dmp xmrig behavioral1/memory/1676-144-0x0000000140000000-0x0000000140829000-memory.dmp xmrig behavioral1/memory/1676-146-0x0000000140000000-0x0000000140829000-memory.dmp xmrig behavioral1/memory/1676-148-0x0000000140000000-0x0000000140829000-memory.dmp xmrig behavioral1/memory/1676-150-0x0000000140000000-0x0000000140829000-memory.dmp xmrig behavioral1/memory/1676-152-0x0000000140000000-0x0000000140829000-memory.dmp xmrig - Downloads MZ/PE file
- Executes dropped EXE 3 IoCs
pid Process 1352 598718.exe 2004 updater.exe 1992 sihost64.exe - Loads dropped DLL 12 IoCs
pid Process 1796 9c5bea6a72a2f471aa79a87d526c1897.exe 1796 9c5bea6a72a2f471aa79a87d526c1897.exe 1796 9c5bea6a72a2f471aa79a87d526c1897.exe 1796 9c5bea6a72a2f471aa79a87d526c1897.exe 1796 9c5bea6a72a2f471aa79a87d526c1897.exe 1796 9c5bea6a72a2f471aa79a87d526c1897.exe 1796 9c5bea6a72a2f471aa79a87d526c1897.exe 1796 9c5bea6a72a2f471aa79a87d526c1897.exe 1796 9c5bea6a72a2f471aa79a87d526c1897.exe 1796 9c5bea6a72a2f471aa79a87d526c1897.exe 1056 cmd.exe 520 conhost.exe - Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 8 freegeoip.app 9 freegeoip.app - Drops file in System32 directory 4 IoCs
description ioc Process File opened for modification C:\Windows\System32\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk powershell.exe File opened for modification C:\Windows\System32\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk powershell.exe File opened for modification C:\Windows\System32\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk powershell.exe File opened for modification C:\Windows\System32\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk powershell.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 520 set thread context of 1676 520 conhost.exe 49 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 1 IoCs
pid pid_target Process procid_target 752 1676 WerFault.exe 49 - Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0 9c5bea6a72a2f471aa79a87d526c1897.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier 9c5bea6a72a2f471aa79a87d526c1897.exe - Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 316 schtasks.exe - Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 860 powershell.exe 580 powershell.exe 452 conhost.exe 1864 powershell.exe 1340 powershell.exe 520 conhost.exe - Suspicious use of AdjustPrivilegeToken 7 IoCs
description pid Process Token: SeDebugPrivilege 1796 9c5bea6a72a2f471aa79a87d526c1897.exe Token: SeDebugPrivilege 860 powershell.exe Token: SeDebugPrivilege 580 powershell.exe Token: SeDebugPrivilege 452 conhost.exe Token: SeDebugPrivilege 1864 powershell.exe Token: SeDebugPrivilege 1340 powershell.exe Token: SeDebugPrivilege 520 conhost.exe - Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 1796 wrote to memory of 1352 1796 9c5bea6a72a2f471aa79a87d526c1897.exe 29 PID 1796 wrote to memory of 1352 1796 9c5bea6a72a2f471aa79a87d526c1897.exe 29 PID 1796 wrote to memory of 1352 1796 9c5bea6a72a2f471aa79a87d526c1897.exe 29 PID 1796 wrote to memory of 1352 1796 9c5bea6a72a2f471aa79a87d526c1897.exe 29 PID 1352 wrote to memory of 452 1352 598718.exe 30 PID 1352 wrote to memory of 452 1352 598718.exe 30 PID 1352 wrote to memory of 452 1352 598718.exe 30 PID 1352 wrote to memory of 452 1352 598718.exe 30 PID 452 wrote to memory of 984 452 conhost.exe 31 PID 452 wrote to memory of 984 452 conhost.exe 31 PID 452 wrote to memory of 984 452 conhost.exe 31 PID 984 wrote to memory of 860 984 cmd.exe 33 PID 984 wrote to memory of 860 984 cmd.exe 33 PID 984 wrote to memory of 860 984 cmd.exe 33 PID 984 wrote to memory of 580 984 cmd.exe 34 PID 984 wrote to memory of 580 984 cmd.exe 34 PID 984 wrote to memory of 580 984 cmd.exe 34 PID 452 wrote to memory of 1636 452 conhost.exe 35 PID 452 wrote to memory of 1636 452 conhost.exe 35 PID 452 wrote to memory of 1636 452 conhost.exe 35 PID 1636 wrote to memory of 316 1636 cmd.exe 37 PID 1636 wrote to memory of 316 1636 cmd.exe 37 PID 1636 wrote to memory of 316 1636 cmd.exe 37 PID 452 wrote to memory of 1056 452 conhost.exe 40 PID 452 wrote to memory of 1056 452 conhost.exe 40 PID 452 wrote to memory of 1056 452 conhost.exe 40 PID 1056 wrote to memory of 2004 1056 cmd.exe 42 PID 1056 wrote to memory of 2004 1056 cmd.exe 42 PID 1056 wrote to memory of 2004 1056 cmd.exe 42 PID 2004 wrote to memory of 520 2004 updater.exe 43 PID 2004 wrote to memory of 520 2004 updater.exe 43 PID 2004 wrote to memory of 520 2004 updater.exe 43 PID 2004 wrote to memory of 520 2004 updater.exe 43 PID 520 wrote to memory of 1680 520 conhost.exe 44 PID 520 wrote to memory of 1680 520 conhost.exe 44 PID 520 wrote to memory of 1680 520 conhost.exe 44 PID 1680 wrote to memory of 1864 1680 cmd.exe 46 PID 1680 wrote to memory of 1864 1680 cmd.exe 46 PID 1680 wrote to memory of 1864 1680 cmd.exe 46 PID 1680 wrote to memory of 1340 1680 cmd.exe 47 PID 1680 wrote to memory of 1340 1680 cmd.exe 47 PID 1680 wrote to memory of 1340 1680 cmd.exe 47 PID 520 wrote to memory of 1992 520 conhost.exe 48 PID 520 wrote to memory of 1992 520 conhost.exe 48 PID 520 wrote to memory of 1992 520 conhost.exe 48 PID 520 wrote to memory of 1676 520 conhost.exe 49 PID 520 wrote to memory of 1676 520 conhost.exe 49 PID 520 wrote to memory of 1676 520 conhost.exe 49 PID 520 wrote to memory of 1676 520 conhost.exe 49 PID 520 wrote to memory of 1676 520 conhost.exe 49 PID 520 wrote to memory of 1676 520 conhost.exe 49 PID 520 wrote to memory of 1676 520 conhost.exe 49 PID 520 wrote to memory of 1676 520 conhost.exe 49 PID 520 wrote to memory of 1676 520 conhost.exe 49 PID 520 wrote to memory of 1676 520 conhost.exe 49 PID 520 wrote to memory of 1676 520 conhost.exe 49 PID 520 wrote to memory of 1676 520 conhost.exe 49 PID 520 wrote to memory of 1676 520 conhost.exe 49 PID 520 wrote to memory of 1676 520 conhost.exe 49 PID 520 wrote to memory of 1676 520 conhost.exe 49 PID 520 wrote to memory of 1676 520 conhost.exe 49 PID 1676 wrote to memory of 752 1676 explorer.exe 50 PID 1676 wrote to memory of 752 1676 explorer.exe 50 PID 1676 wrote to memory of 752 1676 explorer.exe 50
Processes
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C:\Users\Admin\AppData\Local\Temp\9c5bea6a72a2f471aa79a87d526c1897.exe"C:\Users\Admin\AppData\Local\Temp\9c5bea6a72a2f471aa79a87d526c1897.exe"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1796 -
C:\Users\Admin\AppData\Local\598718.exe"C:\Users\Admin\AppData\Local\598718.exe"2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:1352 -
C:\Windows\System32\conhost.exe"C:\Windows\System32\conhost.exe" "C:\Users\Admin\AppData\Local\598718.exe"3⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:452 -
C:\Windows\System32\cmd.exe"cmd" cmd /c powershell -EncodedCommand "QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAALQBGAG8AcgBjAGUA" & powershell -EncodedCommand "QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4ARQB4AHQAZQBuAHMAaQBvAG4AIABAACgAJwBlAHgAZQAnACwAJwBkAGwAbAAnACkAIAAtAEYAbwByAGMAZQA=" & exit4⤵
- Suspicious use of WriteProcessMemory
PID:984 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -EncodedCommand "QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAALQBGAG8AcgBjAGUA"5⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:860
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -EncodedCommand "QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4ARQB4AHQAZQBuAHMAaQBvAG4AIABAACgAJwBlAHgAZQAnACwAJwBkAGwAbAAnACkAIAAtAEYAbwByAGMAZQA="5⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:580
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C:\Windows\System32\cmd.exe"cmd" /c schtasks /create /f /sc onlogon /rl highest /tn "updater" /tr "C:\Users\Admin\AppData\Roaming\Chrome\updater.exe"4⤵
- Suspicious use of WriteProcessMemory
PID:1636 -
C:\Windows\system32\schtasks.exeschtasks /create /f /sc onlogon /rl highest /tn "updater" /tr "C:\Users\Admin\AppData\Roaming\Chrome\updater.exe"5⤵
- Creates scheduled task(s)
PID:316
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C:\Windows\System32\cmd.exe"cmd" cmd /c "C:\Users\Admin\AppData\Roaming\Chrome\updater.exe"4⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1056 -
C:\Users\Admin\AppData\Roaming\Chrome\updater.exeC:\Users\Admin\AppData\Roaming\Chrome\updater.exe5⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2004 -
C:\Windows\System32\conhost.exe"C:\Windows\System32\conhost.exe" "C:\Users\Admin\AppData\Roaming\Chrome\updater.exe"6⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:520 -
C:\Windows\System32\cmd.exe"cmd" cmd /c powershell -EncodedCommand "QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAALQBGAG8AcgBjAGUA" & powershell -EncodedCommand "QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4ARQB4AHQAZQBuAHMAaQBvAG4AIABAACgAJwBlAHgAZQAnACwAJwBkAGwAbAAnACkAIAAtAEYAbwByAGMAZQA=" & exit7⤵
- Suspicious use of WriteProcessMemory
PID:1680 -
C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -EncodedCommand "QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAALQBGAG8AcgBjAGUA"8⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1864
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exepowershell -EncodedCommand "QQBkAGQALQBNAHAAUAByAGUAZgBlAHIAZQBuAGMAZQAgAC0ARQB4AGMAbAB1AHMAaQBvAG4ARQB4AHQAZQBuAHMAaQBvAG4AIABAACgAJwBlAHgAZQAnACwAJwBkAGwAbAAnACkAIAAtAEYAbwByAGMAZQA="8⤵
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1340
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C:\Users\Admin\AppData\Roaming\Windows\Telemetry\sihost64.exe"C:\Users\Admin\AppData\Roaming\Windows\Telemetry\sihost64.exe"7⤵
- Executes dropped EXE
PID:1992 -
C:\Windows\System32\conhost.exe"C:\Windows\System32\conhost.exe" "ojrakkcpgz"8⤵PID:452
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C:\Windows\explorer.exeC:\Windows\explorer.exe shpiczjxwdufjl0 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7⤵
- Suspicious use of WriteProcessMemory
PID:1676 -
C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 1676 -s 1568⤵
- Program crash
PID:752
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