Analysis
-
max time kernel
146s -
max time network
146s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
03-09-2024 10:23
Static task
static1
Behavioral task
behavioral1
Sample
48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe
Resource
win10v2004-20240802-en
General
-
Target
48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe
-
Size
11.2MB
-
MD5
ffdceebfd66c68c128cd5c7e349881b5
-
SHA1
19e173e67dea7a78b95bce015cf4a58dc2f976c7
-
SHA256
48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82
-
SHA512
be958ffd1343a1e1c06ea68a29fa6861c6a1762a74f227190c7d2597a0a64f9926527491b8a11835975d6bf7743359423c9dbf090523d9585c7d1afb623acbd8
-
SSDEEP
49152:wNbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb7:w
Malware Config
Extracted
tofsee
defeatwax.ru
refabyd.info
Signatures
-
Processes:
svchost.exedescription ioc process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows Defender\Exclusions\Paths\C:\Windows\SysWOW64\bclfvlov = "0" svchost.exe -
Creates new service(s) 2 TTPs
-
Modifies Windows Firewall 2 TTPs 1 IoCs
Processes:
netsh.exepid process 2612 netsh.exe -
Sets service image path in registry 2 TTPs 1 IoCs
Processes:
svchost.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\services\bclfvlov\ImagePath = "C:\\Windows\\SysWOW64\\bclfvlov\\tayjojxl.exe" svchost.exe -
Deletes itself 1 IoCs
Processes:
svchost.exepid process 1664 svchost.exe -
Executes dropped EXE 1 IoCs
Processes:
tayjojxl.exepid process 2556 tayjojxl.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
tayjojxl.exedescription pid process target process PID 2556 set thread context of 1664 2556 tayjojxl.exe svchost.exe -
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.
Processes:
sc.exesc.exesc.exepid process 2800 sc.exe 2776 sc.exe 2564 sc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
-
Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs
Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.
Processes:
netsh.exedescription ioc process Key opened \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh netsh.exe Key queried \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh netsh.exe Key value enumerated \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\NetSh netsh.exe -
System Location Discovery: System Language Discovery 1 TTPs 9 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
cmd.execmd.exesc.exesc.exetayjojxl.exesvchost.exe48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exesc.exenetsh.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language tayjojxl.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language svchost.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language sc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language netsh.exe -
Suspicious use of WriteProcessMemory 30 IoCs
Processes:
48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exetayjojxl.exedescription pid process target process PID 2696 wrote to memory of 2684 2696 48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe cmd.exe PID 2696 wrote to memory of 2684 2696 48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe cmd.exe PID 2696 wrote to memory of 2684 2696 48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe cmd.exe PID 2696 wrote to memory of 2684 2696 48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe cmd.exe PID 2696 wrote to memory of 2804 2696 48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe cmd.exe PID 2696 wrote to memory of 2804 2696 48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe cmd.exe PID 2696 wrote to memory of 2804 2696 48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe cmd.exe PID 2696 wrote to memory of 2804 2696 48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe cmd.exe PID 2696 wrote to memory of 2564 2696 48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe sc.exe PID 2696 wrote to memory of 2564 2696 48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe sc.exe PID 2696 wrote to memory of 2564 2696 48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe sc.exe PID 2696 wrote to memory of 2564 2696 48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe sc.exe PID 2696 wrote to memory of 2800 2696 48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe sc.exe PID 2696 wrote to memory of 2800 2696 48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe sc.exe PID 2696 wrote to memory of 2800 2696 48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe sc.exe PID 2696 wrote to memory of 2800 2696 48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe sc.exe PID 2696 wrote to memory of 2776 2696 48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe sc.exe PID 2696 wrote to memory of 2776 2696 48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe sc.exe PID 2696 wrote to memory of 2776 2696 48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe sc.exe PID 2696 wrote to memory of 2776 2696 48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe sc.exe PID 2696 wrote to memory of 2612 2696 48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe netsh.exe PID 2696 wrote to memory of 2612 2696 48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe netsh.exe PID 2696 wrote to memory of 2612 2696 48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe netsh.exe PID 2696 wrote to memory of 2612 2696 48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe netsh.exe PID 2556 wrote to memory of 1664 2556 tayjojxl.exe svchost.exe PID 2556 wrote to memory of 1664 2556 tayjojxl.exe svchost.exe PID 2556 wrote to memory of 1664 2556 tayjojxl.exe svchost.exe PID 2556 wrote to memory of 1664 2556 tayjojxl.exe svchost.exe PID 2556 wrote to memory of 1664 2556 tayjojxl.exe svchost.exe PID 2556 wrote to memory of 1664 2556 tayjojxl.exe svchost.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe"C:\Users\Admin\AppData\Local\Temp\48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe"1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2696 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\bclfvlov\2⤵
- System Location Discovery: System Language Discovery
PID:2684 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\tayjojxl.exe" C:\Windows\SysWOW64\bclfvlov\2⤵
- System Location Discovery: System Language Discovery
PID:2804 -
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create bclfvlov binPath= "C:\Windows\SysWOW64\bclfvlov\tayjojxl.exe /d\"C:\Users\Admin\AppData\Local\Temp\48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe\"" type= own start= auto DisplayName= "wifi support"2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2564 -
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description bclfvlov "wifi internet conection"2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2800 -
C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start bclfvlov2⤵
- Launches sc.exe
- System Location Discovery: System Language Discovery
PID:2776 -
C:\Windows\SysWOW64\netsh.exe"C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul2⤵
- Modifies Windows Firewall
- Event Triggered Execution: Netsh Helper DLL
- System Location Discovery: System Language Discovery
PID:2612
-
C:\Windows\SysWOW64\bclfvlov\tayjojxl.exeC:\Windows\SysWOW64\bclfvlov\tayjojxl.exe /d"C:\Users\Admin\AppData\Local\Temp\48e0ce9cfa0bd0951aaf6cff66593631c06472384d593641fe76854c7d0b3f82.exe"1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2556 -
C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Windows security bypass
- Sets service image path in registry
- Deletes itself
- System Location Discovery: System Language Discovery
PID:1664
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Event Triggered Execution
1Netsh Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Event Triggered Execution
1Netsh Helper DLL
1Defense Evasion
Impair Defenses
2Disable or Modify System Firewall
1Disable or Modify Tools
1Modify Registry
2Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
12.4MB
MD5c1f31314116e015bd52ad1d58a3a40ca
SHA168880c062dcd594f5a5807ded014d2caea0e4752
SHA256f3e068467030002b429df4b450a8eaea2d44285538986ed9ee23909df2e74779
SHA5123dae8020d5f30b1231b71cc9bda37b0b11712316e96250b47d6c815397d78b46c9d9c3ad975dc378f85c4dca60a4fcaa87ccfed277debf5556603e598be22303