Analysis
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max time kernel
150s -
max time network
149s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
10-11-2024 01:27
Static task
static1
Behavioral task
behavioral1
Sample
e84af8607a3effb4c29eeee87926c47ce1f2867d88db46f2267a62d2b62b5845.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
e84af8607a3effb4c29eeee87926c47ce1f2867d88db46f2267a62d2b62b5845.exe
Resource
win10v2004-20241007-en
General
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Target
e84af8607a3effb4c29eeee87926c47ce1f2867d88db46f2267a62d2b62b5845.exe
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Size
410KB
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MD5
42ded6fecf6e261cae9b73ce58011db7
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SHA1
579b5303fb2c127f8169936aa2e11dc5323c9afa
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SHA256
e84af8607a3effb4c29eeee87926c47ce1f2867d88db46f2267a62d2b62b5845
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SHA512
25d9eea0d589bf2d0f95723f791635ad8a4935048e53b7ec3416a10549120b2c8c874ff41c3861f4f987716bc0f75c5ac27a807c30f3e16d07a0d26578097d8a
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SSDEEP
6144:3w9D91dOrcN3ZGXNYFNmIkYvUIelVjjVtGRyFH4:gtRfJcNYFNm8UhlZGse
Malware Config
Signatures
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Blocklisted process makes network request 10 IoCs
Processes:
rundll32.exeflow pid process 3 2072 rundll32.exe 5 2072 rundll32.exe 8 2072 rundll32.exe 9 2072 rundll32.exe 10 2072 rundll32.exe 13 2072 rundll32.exe 14 2072 rundll32.exe 15 2072 rundll32.exe 17 2072 rundll32.exe 18 2072 rundll32.exe -
Deletes itself 1 IoCs
Processes:
fwbvx.exepid process 2868 fwbvx.exe -
Executes dropped EXE 1 IoCs
Processes:
fwbvx.exepid process 2868 fwbvx.exe -
Loads dropped DLL 6 IoCs
Processes:
cmd.exerundll32.exepid process 2432 cmd.exe 2432 cmd.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.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:
rundll32.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\Dotx = "c:\\windows\\SysWOW64\\rundll32.exe \"c:\\Program Files\\zfdmtizi\\wuhjg.dll\",Verify" rundll32.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
rundll32.exedescription ioc process File opened (read-only) \??\s: rundll32.exe File opened (read-only) \??\i: rundll32.exe File opened (read-only) \??\k: rundll32.exe File opened (read-only) \??\l: rundll32.exe File opened (read-only) \??\q: rundll32.exe File opened (read-only) \??\r: rundll32.exe File opened (read-only) \??\y: rundll32.exe File opened (read-only) \??\g: rundll32.exe File opened (read-only) \??\h: rundll32.exe File opened (read-only) \??\m: rundll32.exe File opened (read-only) \??\o: rundll32.exe File opened (read-only) \??\t: rundll32.exe File opened (read-only) \??\b: rundll32.exe File opened (read-only) \??\e: rundll32.exe File opened (read-only) \??\v: rundll32.exe File opened (read-only) \??\w: rundll32.exe File opened (read-only) \??\x: rundll32.exe File opened (read-only) \??\z: rundll32.exe File opened (read-only) \??\a: rundll32.exe File opened (read-only) \??\j: rundll32.exe File opened (read-only) \??\n: rundll32.exe File opened (read-only) \??\p: rundll32.exe File opened (read-only) \??\u: rundll32.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:
rundll32.exedescription ioc process File opened for modification \??\PHYSICALDRIVE0 rundll32.exe -
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
Processes:
rundll32.exepid process 2072 rundll32.exe -
Drops file in Program Files directory 2 IoCs
Processes:
fwbvx.exedescription ioc process File opened for modification \??\c:\Program Files\zfdmtizi fwbvx.exe File created \??\c:\Program Files\zfdmtizi\wuhjg.dll fwbvx.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:
e84af8607a3effb4c29eeee87926c47ce1f2867d88db46f2267a62d2b62b5845.execmd.exePING.EXEfwbvx.exerundll32.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language e84af8607a3effb4c29eeee87926c47ce1f2867d88db46f2267a62d2b62b5845.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 fwbvx.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language rundll32.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 2276 PING.EXE 2432 cmd.exe -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
Processes:
rundll32.exedescription ioc process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString rundll32.exe Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 rundll32.exe -
Runs ping.exe 1 TTPs 1 IoCs
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Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
rundll32.exepid process 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe 2072 rundll32.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
rundll32.exedescription pid process Token: SeDebugPrivilege 2072 rundll32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
e84af8607a3effb4c29eeee87926c47ce1f2867d88db46f2267a62d2b62b5845.exefwbvx.exepid process 2904 e84af8607a3effb4c29eeee87926c47ce1f2867d88db46f2267a62d2b62b5845.exe 2868 fwbvx.exe -
Suspicious use of WriteProcessMemory 19 IoCs
Processes:
e84af8607a3effb4c29eeee87926c47ce1f2867d88db46f2267a62d2b62b5845.execmd.exefwbvx.exedescription pid process target process PID 2904 wrote to memory of 2432 2904 e84af8607a3effb4c29eeee87926c47ce1f2867d88db46f2267a62d2b62b5845.exe cmd.exe PID 2904 wrote to memory of 2432 2904 e84af8607a3effb4c29eeee87926c47ce1f2867d88db46f2267a62d2b62b5845.exe cmd.exe PID 2904 wrote to memory of 2432 2904 e84af8607a3effb4c29eeee87926c47ce1f2867d88db46f2267a62d2b62b5845.exe cmd.exe PID 2904 wrote to memory of 2432 2904 e84af8607a3effb4c29eeee87926c47ce1f2867d88db46f2267a62d2b62b5845.exe cmd.exe PID 2432 wrote to memory of 2276 2432 cmd.exe PING.EXE PID 2432 wrote to memory of 2276 2432 cmd.exe PING.EXE PID 2432 wrote to memory of 2276 2432 cmd.exe PING.EXE PID 2432 wrote to memory of 2276 2432 cmd.exe PING.EXE PID 2432 wrote to memory of 2868 2432 cmd.exe fwbvx.exe PID 2432 wrote to memory of 2868 2432 cmd.exe fwbvx.exe PID 2432 wrote to memory of 2868 2432 cmd.exe fwbvx.exe PID 2432 wrote to memory of 2868 2432 cmd.exe fwbvx.exe PID 2868 wrote to memory of 2072 2868 fwbvx.exe rundll32.exe PID 2868 wrote to memory of 2072 2868 fwbvx.exe rundll32.exe PID 2868 wrote to memory of 2072 2868 fwbvx.exe rundll32.exe PID 2868 wrote to memory of 2072 2868 fwbvx.exe rundll32.exe PID 2868 wrote to memory of 2072 2868 fwbvx.exe rundll32.exe PID 2868 wrote to memory of 2072 2868 fwbvx.exe rundll32.exe PID 2868 wrote to memory of 2072 2868 fwbvx.exe rundll32.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\e84af8607a3effb4c29eeee87926c47ce1f2867d88db46f2267a62d2b62b5845.exe"C:\Users\Admin\AppData\Local\Temp\e84af8607a3effb4c29eeee87926c47ce1f2867d88db46f2267a62d2b62b5845.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2904 -
C:\Windows\SysWOW64\cmd.execmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\fwbvx.exe "C:\Users\Admin\AppData\Local\Temp\e84af8607a3effb4c29eeee87926c47ce1f2867d88db46f2267a62d2b62b5845.exe"2⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious use of WriteProcessMemory
PID:2432 -
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:2276 -
C:\Users\Admin\AppData\Local\Temp\fwbvx.exeC:\Users\Admin\AppData\Local\Temp\\fwbvx.exe "C:\Users\Admin\AppData\Local\Temp\e84af8607a3effb4c29eeee87926c47ce1f2867d88db46f2267a62d2b62b5845.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:2868 -
\??\c:\windows\SysWOW64\rundll32.exec:\windows\system32\rundll32.exe "c:\Program Files\zfdmtizi\wuhjg.dll",Verify C:\Users\Admin\AppData\Local\Temp\fwbvx.exe4⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Adds Run key to start application
- Enumerates connected drives
- Writes to the Master Boot Record (MBR)
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2072
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
228KB
MD5a4f7b4f4885253fa6ba1fe10c7239d51
SHA1aab872ac23d935cd720b6cf19bde9fde6bdefa04
SHA2569296cafbdedee4c582e03b9ce000b32966a79d3df32dbefaee2ac28c37ee0555
SHA51228368ebf95cb27c73e43501192fe4d00baddbaf1521f099d2adb75a399e6643a5f5803b5bcb25365fac8351d7beac56ec23eba2a3e7e9ff5cd8b264a62aef5a5
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Filesize
410KB
MD5d651e1f47f335a6d44cc26ee7a559706
SHA14f00beaf0ad75d171ff18b2415d7a9d7d289be44
SHA256e27eb877aa864131838f428779168f9a915dbefd89db8d2fff7a5e49bfd74e1b
SHA51263bc98b6a791767921462c96763142aeece3922448d86da36250e9e126ff801b6f03018e408a623bdc7898f62d013cf575d98142d405cb4b51fba3d5ac07efb0