Analysis
- max time kernel
138s - max time network
146s - platform
windows7_x64 - resource
win7 - submitted
14/10/2020, 13:33
Static task
static1
Behavioral task
behavioral1
Sample
build.exe
Resource
win7
0 signatures
0 seconds
General
- Target build.exe
- Size 50KB
- Sample201014-25vexq9rts
- SHA256 62a3f96dbc53b59dc32cac8f2627992d4152cbd6735e488c4ae86f089dc97aa8
- MD5 32597080058c61fcac322844fd5fb5c6
- SHA1 1ec63c8236bef08d61fcd87e2b693a4abf1b452e
- SHA512 9c4af38e20a9ed57d4b417aa3166cad7b9c2c5adfc3a2e6aeaf3a82ad44181c375141c5bb646f6ce2ceebeb50bfd1417dc243a776e36502080a54062a1ee4607
- MD5 SHA1 SHA512
Malware Config
Extracted
Family
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lokibot
C2
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http://mecharnise.ir/eb4/fre.php
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http://kbfvzoboss.bid/alien/fre.php
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http://alphastand.trade/alien/fre.php
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http://alphastand.win/alien/fre.php
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http://alphastand.top/alien/fre.php
Signatures
- Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Local\\Temp\\build.exe\"" build.exe - Drops startup file 2 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\build.exe build.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\build.exe build.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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description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Real-Time Protection build.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Spynet\SubmitSamplesConsent = "0" build.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Exclusions build.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\build.exe = "0" build.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\build.exe = "0" build.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" build.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features build.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" build.exe Key created \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Exclusions\Paths build.exe - Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\build.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\build.exe" build.exe Set value (str) \REGISTRY\USER\S-1-5-21-1131729243-447456001-3632642222-1000\Software\Microsoft\Windows\CurrentVersion\Run\<Unknown> = "C:\\Users\\Admin\\AppData\\Local\\Temp\\build.exe" build.exe - Legitimate hosting services abused for malware hosting/C2 1 TTPs
- Suspicious use of NtSetInformationThreadHideFromDebugger 12 IoCs
pid Process 1124 build.exe 1124 build.exe 1124 build.exe 1124 build.exe 1124 build.exe 1124 build.exe 1124 build.exe 1124 build.exe 1124 build.exe 1124 build.exe 1124 build.exe 1124 build.exe - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1124 set thread context of 764 1124 build.exe 38 - Program crash 1 IoCs
pid pid_target Process procid_target 1064 1124 WerFault.exe 23 - Delays execution with timeout.exe 1 IoCs
pid Process 1688 timeout.exe - Suspicious behavior: EnumeratesProcesses 17 IoCs
pid Process 1124 build.exe 1124 build.exe 1124 build.exe 1892 powershell.exe 1000 powershell.exe 1952 powershell.exe 572 powershell.exe 572 powershell.exe 1000 powershell.exe 1952 powershell.exe 1892 powershell.exe 1064 WerFault.exe 1064 WerFault.exe 1064 WerFault.exe 1064 WerFault.exe 1064 WerFault.exe 1064 WerFault.exe - Suspicious behavior: RenamesItself 1 IoCs
pid Process 764 build.exe - Suspicious use of AdjustPrivilegeToken 7 IoCs
description pid Process Token: SeDebugPrivilege 1124 build.exe Token: SeDebugPrivilege 1892 powershell.exe Token: SeDebugPrivilege 1000 powershell.exe Token: SeDebugPrivilege 572 powershell.exe Token: SeDebugPrivilege 1952 powershell.exe Token: SeDebugPrivilege 1064 WerFault.exe Token: SeDebugPrivilege 764 build.exe - Suspicious use of WriteProcessMemory 35 IoCs
description pid Process procid_target PID 1124 wrote to memory of 1688 1124 build.exe 25 PID 1124 wrote to memory of 1688 1124 build.exe 25 PID 1124 wrote to memory of 1688 1124 build.exe 25 PID 1124 wrote to memory of 1688 1124 build.exe 25 PID 1124 wrote to memory of 1892 1124 build.exe 30 PID 1124 wrote to memory of 1892 1124 build.exe 30 PID 1124 wrote to memory of 1892 1124 build.exe 30 PID 1124 wrote to memory of 1892 1124 build.exe 30 PID 1124 wrote to memory of 1952 1124 build.exe 32 PID 1124 wrote to memory of 1952 1124 build.exe 32 PID 1124 wrote to memory of 1952 1124 build.exe 32 PID 1124 wrote to memory of 1952 1124 build.exe 32 PID 1124 wrote to memory of 1000 1124 build.exe 34 PID 1124 wrote to memory of 1000 1124 build.exe 34 PID 1124 wrote to memory of 1000 1124 build.exe 34 PID 1124 wrote to memory of 1000 1124 build.exe 34 PID 1124 wrote to memory of 572 1124 build.exe 36 PID 1124 wrote to memory of 572 1124 build.exe 36 PID 1124 wrote to memory of 572 1124 build.exe 36 PID 1124 wrote to memory of 572 1124 build.exe 36 PID 1124 wrote to memory of 764 1124 build.exe 38 PID 1124 wrote to memory of 764 1124 build.exe 38 PID 1124 wrote to memory of 764 1124 build.exe 38 PID 1124 wrote to memory of 764 1124 build.exe 38 PID 1124 wrote to memory of 764 1124 build.exe 38 PID 1124 wrote to memory of 764 1124 build.exe 38 PID 1124 wrote to memory of 764 1124 build.exe 38 PID 1124 wrote to memory of 764 1124 build.exe 38 PID 1124 wrote to memory of 764 1124 build.exe 38 PID 1124 wrote to memory of 764 1124 build.exe 38 PID 1124 wrote to memory of 764 1124 build.exe 38 PID 1124 wrote to memory of 1064 1124 build.exe 40 PID 1124 wrote to memory of 1064 1124 build.exe 40 PID 1124 wrote to memory of 1064 1124 build.exe 40 PID 1124 wrote to memory of 1064 1124 build.exe 40
Processes
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C:\Users\Admin\AppData\Local\Temp\build.exe"C:\Users\Admin\AppData\Local\Temp\build.exe"1⤵
- Modifies WinLogon for persistence
- Drops startup file
- Windows security modification
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1124 -
C:\Windows\SysWOW64\timeout.exetimeout 42⤵
- Delays execution with timeout.exe
PID:1688
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\build.exe" -Force2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1892
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\build.exe" -Force2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1952
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\build.exe" -Force2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1000
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\build.exe" -Force2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:572
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C:\Users\Admin\AppData\Local\Temp\build.exe"C:\Users\Admin\AppData\Local\Temp\build.exe"2⤵
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
PID:764
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1124 -s 18922⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1064
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