Analysis
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max time kernel
113s -
max time network
112s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
17/10/2024, 00:42
Static task
static1
Behavioral task
behavioral1
Sample
c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe
Resource
win10v2004-20241007-en
General
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Target
c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe
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Size
230KB
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MD5
419dd4c9c0bc71f42d9cc51111821b60
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SHA1
a3482fd1713761374c061d1db26bb03924252bf6
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SHA256
c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0
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SHA512
5b6e352015ff708bc2ad8dad9f226a908e8ae3960efe6e92b24320c785a6b5f3ff1326e905f7fea19acd17a7549b1d585a5702d71755004a8ef91dbbe6be5841
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SSDEEP
6144:6Piynu0cvT2wQc4+T6YWtQSh/iuGkq7L2/zlUMp:6Piynu0cK9g6YWtp7TWSO4
Malware Config
Signatures
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Deletes itself 1 IoCs
pid Process 1760 vhcis.exe -
Executes dropped EXE 2 IoCs
pid Process 1760 vhcis.exe 212 mnuuihmkm.exe -
Loads dropped DLL 1 IoCs
pid Process 212 mnuuihmkm.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
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\esf = "c:\\Program Files\\jwuuu\\mnuuihmkm.exe \"c:\\Program Files\\jwuuu\\mnuuihmkm.dll\",EnumSourceFiles" mnuuihmkm.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\n: mnuuihmkm.exe File opened (read-only) \??\u: mnuuihmkm.exe File opened (read-only) \??\y: mnuuihmkm.exe File opened (read-only) \??\o: mnuuihmkm.exe File opened (read-only) \??\q: mnuuihmkm.exe File opened (read-only) \??\t: mnuuihmkm.exe File opened (read-only) \??\i: mnuuihmkm.exe File opened (read-only) \??\l: mnuuihmkm.exe File opened (read-only) \??\s: mnuuihmkm.exe File opened (read-only) \??\v: mnuuihmkm.exe File opened (read-only) \??\w: mnuuihmkm.exe File opened (read-only) \??\e: mnuuihmkm.exe File opened (read-only) \??\g: mnuuihmkm.exe File opened (read-only) \??\h: mnuuihmkm.exe File opened (read-only) \??\x: mnuuihmkm.exe File opened (read-only) \??\z: mnuuihmkm.exe File opened (read-only) \??\k: mnuuihmkm.exe File opened (read-only) \??\m: mnuuihmkm.exe File opened (read-only) \??\p: mnuuihmkm.exe File opened (read-only) \??\r: mnuuihmkm.exe File opened (read-only) \??\a: mnuuihmkm.exe File opened (read-only) \??\b: mnuuihmkm.exe File opened (read-only) \??\j: mnuuihmkm.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.
description ioc Process File opened for modification \??\PHYSICALDRIVE0 mnuuihmkm.exe -
Drops file in Program Files directory 4 IoCs
description ioc Process File created \??\c:\Program Files\jwuuu\mnuuihmkm.exe vhcis.exe File opened for modification \??\c:\Program Files\jwuuu\mnuuihmkm.exe vhcis.exe File opened for modification \??\c:\Program Files\jwuuu vhcis.exe File created \??\c:\Program Files\jwuuu\mnuuihmkm.dll vhcis.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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language PING.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language vhcis.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language mnuuihmkm.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe -
System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
pid Process 1716 cmd.exe 464 PING.EXE -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString mnuuihmkm.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 mnuuihmkm.exe -
Runs ping.exe 1 TTPs 1 IoCs
pid Process 464 PING.EXE -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 212 mnuuihmkm.exe 212 mnuuihmkm.exe 212 mnuuihmkm.exe 212 mnuuihmkm.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 212 mnuuihmkm.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1872 c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe 1760 vhcis.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 1872 wrote to memory of 1716 1872 c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe 86 PID 1872 wrote to memory of 1716 1872 c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe 86 PID 1872 wrote to memory of 1716 1872 c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe 86 PID 1716 wrote to memory of 464 1716 cmd.exe 88 PID 1716 wrote to memory of 464 1716 cmd.exe 88 PID 1716 wrote to memory of 464 1716 cmd.exe 88 PID 1716 wrote to memory of 1760 1716 cmd.exe 90 PID 1716 wrote to memory of 1760 1716 cmd.exe 90 PID 1716 wrote to memory of 1760 1716 cmd.exe 90 PID 1760 wrote to memory of 212 1760 vhcis.exe 91 PID 1760 wrote to memory of 212 1760 vhcis.exe 91 PID 1760 wrote to memory of 212 1760 vhcis.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe"C:\Users\Admin\AppData\Local\Temp\c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1872 -
C:\Windows\SysWOW64\cmd.execmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\vhcis.exe "C:\Users\Admin\AppData\Local\Temp\c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.exe"2⤵
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:1716 -
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:464
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C:\Users\Admin\AppData\Local\Temp\vhcis.exeC:\Users\Admin\AppData\Local\Temp\\vhcis.exe "C:\Users\Admin\AppData\Local\Temp\c4ce38d1726fe8dfa333c8fa570894424b3e2a3583d75eab9703f68d9361ffb0N.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:1760 -
\??\c:\Program Files\jwuuu\mnuuihmkm.exe"c:\Program Files\jwuuu\mnuuihmkm.exe" "c:\Program Files\jwuuu\mnuuihmkm.dll",EnumSourceFiles C:\Users\Admin\AppData\Local\Temp\vhcis.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:212
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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
230KB
MD529bf6a60045085f25f007815281fa750
SHA183791db40f7113d76d22cb246477b2b2797620f8
SHA2560fcadc1a3e25685ce366503f6c99f01ec267e9ff23c9ee4e6395b31f4855da8b
SHA5126cdc55a12e34b35ce784eb7c88297bd04ec83ec766413c33b0c200db11282c9a9eeb3a35bc5bd8480b8ce1fde6af6246fe285cd40a4c91cd1342fbee10e862e6
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Filesize
180KB
MD5934d96d55b33424ca1ca2920a6b7b8cd
SHA14ef50658d97ebc5c84929bbd35cf0741549395b1
SHA256b203a2cbbc2eda8b6ae588c1d1e2f59eb39297fd261c4de93f75921d48ad2301
SHA5126ac311c44af3f72fdc1d6f9e2d3d17959064db727d2f3e9b5b61e863850cf3e6543010e5c801647dbe6a82ca0c8755186a9d595c4a0eba1347dbb45bd8894c32