Analysis
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max time kernel
149s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
09-11-2024 18:59
Static task
static1
Behavioral task
behavioral1
Sample
e5d9abd22a8e1ca75678a21b97e69c92acb3268670edaf1dd4831a16160cb019.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
e5d9abd22a8e1ca75678a21b97e69c92acb3268670edaf1dd4831a16160cb019.exe
Resource
win10v2004-20241007-en
General
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Target
e5d9abd22a8e1ca75678a21b97e69c92acb3268670edaf1dd4831a16160cb019.exe
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Size
200KB
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MD5
9933491afe789b82723b7f8499fe85aa
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SHA1
3e3cbea4eab8dc8bc7b372567e1e99dbb4dc526f
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SHA256
e5d9abd22a8e1ca75678a21b97e69c92acb3268670edaf1dd4831a16160cb019
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SHA512
ac2ca28a223d67784833c581ac5b5ab90e9614f1e07a27cb9ed4e60cc901df0025fe95e9eb467cdbb37a77ceb7287c0f9c1598409c6f5a9e840f4eb4bd1fa7e2
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SSDEEP
3072:fP5gvNVLIfHQja1RfmLQADwSKkhU+tLgT5lODbiC8r1PkTX:X2vnSwjaOcADw9cUeCOfx
Malware Config
Signatures
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Deletes itself 1 IoCs
Processes:
uiuywlok.exepid process 1532 uiuywlok.exe -
Executes dropped EXE 2 IoCs
Processes:
uiuywlok.exeutw.exepid process 1532 uiuywlok.exe 3692 utw.exe -
Loads dropped DLL 1 IoCs
Processes:
utw.exepid process 3692 utw.exe -
Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
Processes:
utw.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Depend = "c:\\Program Files\\xqunc\\utw.exe \"c:\\Program Files\\xqunc\\utwth.dll\",Compliance" utw.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
utw.exedescription ioc process File opened (read-only) \??\i: utw.exe File opened (read-only) \??\t: utw.exe File opened (read-only) \??\x: utw.exe File opened (read-only) \??\y: utw.exe File opened (read-only) \??\z: utw.exe File opened (read-only) \??\a: utw.exe File opened (read-only) \??\h: utw.exe File opened (read-only) \??\j: utw.exe File opened (read-only) \??\q: utw.exe File opened (read-only) \??\e: utw.exe File opened (read-only) \??\g: utw.exe File opened (read-only) \??\k: utw.exe File opened (read-only) \??\o: utw.exe File opened (read-only) \??\p: utw.exe File opened (read-only) \??\s: utw.exe File opened (read-only) \??\b: utw.exe File opened (read-only) \??\l: utw.exe File opened (read-only) \??\m: utw.exe File opened (read-only) \??\n: utw.exe File opened (read-only) \??\r: utw.exe File opened (read-only) \??\u: utw.exe File opened (read-only) \??\v: utw.exe File opened (read-only) \??\w: utw.exe -
Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
Processes:
utw.exedescription ioc process File opened for modification \??\PHYSICALDRIVE0 utw.exe -
Drops file in Program Files directory 4 IoCs
Processes:
uiuywlok.exedescription ioc process File opened for modification \??\c:\Program Files\xqunc uiuywlok.exe File created \??\c:\Program Files\xqunc\utwth.dll uiuywlok.exe File created \??\c:\Program Files\xqunc\utw.exe uiuywlok.exe File opened for modification \??\c:\Program Files\xqunc\utw.exe uiuywlok.exe -
System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
utw.exee5d9abd22a8e1ca75678a21b97e69c92acb3268670edaf1dd4831a16160cb019.execmd.exePING.EXEuiuywlok.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language utw.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language e5d9abd22a8e1ca75678a21b97e69c92acb3268670edaf1dd4831a16160cb019.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PING.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language uiuywlok.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
Processes:
PING.EXEcmd.exepid process 2816 PING.EXE 4796 cmd.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
utw.exedescription ioc process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 utw.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString utw.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
utw.exepid process 3692 utw.exe 3692 utw.exe 3692 utw.exe 3692 utw.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
utw.exedescription pid process Token: SeDebugPrivilege 3692 utw.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
e5d9abd22a8e1ca75678a21b97e69c92acb3268670edaf1dd4831a16160cb019.exeuiuywlok.exepid process 4676 e5d9abd22a8e1ca75678a21b97e69c92acb3268670edaf1dd4831a16160cb019.exe 1532 uiuywlok.exe -
Suspicious use of WriteProcessMemory 12 IoCs
Processes:
e5d9abd22a8e1ca75678a21b97e69c92acb3268670edaf1dd4831a16160cb019.execmd.exeuiuywlok.exedescription pid process target process PID 4676 wrote to memory of 4796 4676 e5d9abd22a8e1ca75678a21b97e69c92acb3268670edaf1dd4831a16160cb019.exe cmd.exe PID 4676 wrote to memory of 4796 4676 e5d9abd22a8e1ca75678a21b97e69c92acb3268670edaf1dd4831a16160cb019.exe cmd.exe PID 4676 wrote to memory of 4796 4676 e5d9abd22a8e1ca75678a21b97e69c92acb3268670edaf1dd4831a16160cb019.exe cmd.exe PID 4796 wrote to memory of 2816 4796 cmd.exe PING.EXE PID 4796 wrote to memory of 2816 4796 cmd.exe PING.EXE PID 4796 wrote to memory of 2816 4796 cmd.exe PING.EXE PID 4796 wrote to memory of 1532 4796 cmd.exe uiuywlok.exe PID 4796 wrote to memory of 1532 4796 cmd.exe uiuywlok.exe PID 4796 wrote to memory of 1532 4796 cmd.exe uiuywlok.exe PID 1532 wrote to memory of 3692 1532 uiuywlok.exe utw.exe PID 1532 wrote to memory of 3692 1532 uiuywlok.exe utw.exe PID 1532 wrote to memory of 3692 1532 uiuywlok.exe utw.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\e5d9abd22a8e1ca75678a21b97e69c92acb3268670edaf1dd4831a16160cb019.exe"C:\Users\Admin\AppData\Local\Temp\e5d9abd22a8e1ca75678a21b97e69c92acb3268670edaf1dd4831a16160cb019.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4676 -
C:\Windows\SysWOW64\cmd.execmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\uiuywlok.exe "C:\Users\Admin\AppData\Local\Temp\e5d9abd22a8e1ca75678a21b97e69c92acb3268670edaf1dd4831a16160cb019.exe"2⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:4796 -
C:\Windows\SysWOW64\PING.EXEping 127.0.0.1 -n 23⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Runs ping.exe
PID:2816 -
C:\Users\Admin\AppData\Local\Temp\uiuywlok.exeC:\Users\Admin\AppData\Local\Temp\\uiuywlok.exe "C:\Users\Admin\AppData\Local\Temp\e5d9abd22a8e1ca75678a21b97e69c92acb3268670edaf1dd4831a16160cb019.exe"3⤵
- Deletes itself
- Executes dropped EXE
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1532 -
\??\c:\Program Files\xqunc\utw.exe"c:\Program Files\xqunc\utw.exe" "c:\Program Files\xqunc\utwth.dll",Compliance C:\Users\Admin\AppData\Local\Temp\uiuywlok.exe4⤵
- Executes dropped EXE
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3692
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
1Credentials In Files
1Replay Monitor
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Downloads
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Filesize
60KB
MD5889b99c52a60dd49227c5e485a016679
SHA18fa889e456aa646a4d0a4349977430ce5fa5e2d7
SHA2566cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910
SHA51208933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641
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Filesize
201KB
MD511b623939f9f2c5d1cb07cc32b1069eb
SHA16b46c0c57b3a7e88750794b5d3ece35e4d1ba8c2
SHA25612c27db594cbc1af0225a810ceedbaba9a280999d008121bb286870a4a9de5c5
SHA51255000661aebff959964f9adb190f5df2797d6522902a03ccad3418ea34560f515522ce52fe02cc9b34aab81ee29ced3a9258d616063b64cd92b9c8cd819ed890
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Filesize
141KB
MD5f7086063cfcdb28d6d287254a9bc2b04
SHA186d60e83e3a6444ad00f9d84fdd5ba50086d6c96
SHA25686e5509b30dab6ecbca585c6fe376c6986abcb5c9a9b0411e7b6bd844eb8c1e1
SHA51276f29c56ba8f5a479b8a163a37f2cc27ff4f662b9779f70f6075d5b2211a5cd50848a4bc99e8f435534e8d8acbaa812546aafdd6668d78b5c29f2ca7ca0eb930