Analysis
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max time kernel
152s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
13/03/2024, 03:44
Static task
static1
Behavioral task
behavioral1
Sample
c4e30adbc0004c8b24f86e36cfff81f7.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
c4e30adbc0004c8b24f86e36cfff81f7.exe
Resource
win10v2004-20240226-en
General
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Target
c4e30adbc0004c8b24f86e36cfff81f7.exe
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Size
13.0MB
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MD5
c4e30adbc0004c8b24f86e36cfff81f7
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SHA1
e77b025e8ae17a4c8485929593118423f745423b
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SHA256
901847a959678fa8c5a673996b31303d6de209e124ad922debe57f019c38fe25
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SHA512
460e5b118caa460ea144fa9d03bb09aa80085be28d3890dc0c03761a773f15d20e57e9e0a4886ba82fcc3a89d80ad36a44972c60e603d3bf19397ae0a8c5f21f
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SSDEEP
49152:NQsPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP:NQ
Malware Config
Extracted
tofsee
43.231.4.7
lazystax.ru
Signatures
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Creates new service(s) 1 TTPs
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Modifies Windows Firewall 2 TTPs 1 IoCs
pid Process 4804 netsh.exe -
Sets service image path in registry 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\oufiyglm\ImagePath = "C:\\Windows\\SysWOW64\\oufiyglm\\vvualzgj.exe" svchost.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Control Panel\International\Geo\Nation c4e30adbc0004c8b24f86e36cfff81f7.exe -
Deletes itself 1 IoCs
pid Process 3100 svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 656 vvualzgj.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 656 set thread context of 3100 656 vvualzgj.exe 110 -
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 3328 sc.exe 772 sc.exe 4172 sc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 4612 wrote to memory of 4852 4612 c4e30adbc0004c8b24f86e36cfff81f7.exe 97 PID 4612 wrote to memory of 4852 4612 c4e30adbc0004c8b24f86e36cfff81f7.exe 97 PID 4612 wrote to memory of 4852 4612 c4e30adbc0004c8b24f86e36cfff81f7.exe 97 PID 4612 wrote to memory of 3232 4612 c4e30adbc0004c8b24f86e36cfff81f7.exe 99 PID 4612 wrote to memory of 3232 4612 c4e30adbc0004c8b24f86e36cfff81f7.exe 99 PID 4612 wrote to memory of 3232 4612 c4e30adbc0004c8b24f86e36cfff81f7.exe 99 PID 4612 wrote to memory of 3328 4612 c4e30adbc0004c8b24f86e36cfff81f7.exe 101 PID 4612 wrote to memory of 3328 4612 c4e30adbc0004c8b24f86e36cfff81f7.exe 101 PID 4612 wrote to memory of 3328 4612 c4e30adbc0004c8b24f86e36cfff81f7.exe 101 PID 4612 wrote to memory of 772 4612 c4e30adbc0004c8b24f86e36cfff81f7.exe 103 PID 4612 wrote to memory of 772 4612 c4e30adbc0004c8b24f86e36cfff81f7.exe 103 PID 4612 wrote to memory of 772 4612 c4e30adbc0004c8b24f86e36cfff81f7.exe 103 PID 4612 wrote to memory of 4172 4612 c4e30adbc0004c8b24f86e36cfff81f7.exe 105 PID 4612 wrote to memory of 4172 4612 c4e30adbc0004c8b24f86e36cfff81f7.exe 105 PID 4612 wrote to memory of 4172 4612 c4e30adbc0004c8b24f86e36cfff81f7.exe 105 PID 4612 wrote to memory of 4804 4612 c4e30adbc0004c8b24f86e36cfff81f7.exe 107 PID 4612 wrote to memory of 4804 4612 c4e30adbc0004c8b24f86e36cfff81f7.exe 107 PID 4612 wrote to memory of 4804 4612 c4e30adbc0004c8b24f86e36cfff81f7.exe 107 PID 656 wrote to memory of 3100 656 vvualzgj.exe 110 PID 656 wrote to memory of 3100 656 vvualzgj.exe 110 PID 656 wrote to memory of 3100 656 vvualzgj.exe 110 PID 656 wrote to memory of 3100 656 vvualzgj.exe 110 PID 656 wrote to memory of 3100 656 vvualzgj.exe 110
Processes
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C:\Users\Admin\AppData\Local\Temp\c4e30adbc0004c8b24f86e36cfff81f7.exe"C:\Users\Admin\AppData\Local\Temp\c4e30adbc0004c8b24f86e36cfff81f7.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4612 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\oufiyglm\2⤵PID:4852
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\vvualzgj.exe" C:\Windows\SysWOW64\oufiyglm\2⤵PID:3232
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create oufiyglm binPath= "C:\Windows\SysWOW64\oufiyglm\vvualzgj.exe /d\"C:\Users\Admin\AppData\Local\Temp\c4e30adbc0004c8b24f86e36cfff81f7.exe\"" type= own start= auto DisplayName= "wifi support"2⤵
- Launches sc.exe
PID:3328
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description oufiyglm "wifi internet conection"2⤵
- Launches sc.exe
PID:772
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start oufiyglm2⤵
- Launches sc.exe
PID:4172
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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
PID:4804
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C:\Windows\SysWOW64\oufiyglm\vvualzgj.exeC:\Windows\SysWOW64\oufiyglm\vvualzgj.exe /d"C:\Users\Admin\AppData\Local\Temp\c4e30adbc0004c8b24f86e36cfff81f7.exe"1⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:656 -
C:\Windows\SysWOW64\svchost.exesvchost.exe2⤵
- Sets service image path in registry
- Deletes itself
PID:3100
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3940 --field-trial-handle=2284,i,15722001240173834669,15048020084704567542,262144 --variations-seed-version /prefetch:81⤵PID:1592
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
2Windows Service
2Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2.7MB
MD59ce7c16f8a117f83e95fa911a36bdc9d
SHA157ffddcaea9c8964903657b7a3b13bfc4c2fb315
SHA2560b3d1e861cd53804c95b1b9062b18fceba2cde8c159a3197958e6901826837f6
SHA5124c5786c56a6edcb54e2450d18a521408f7513b38028575e05d9a30bcc38009d65a0eab3c43f7414b021e40ef013c59ccdb921d8876172deac52cbca9e2c2abd7
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Filesize
12.1MB
MD59878ab660d43259b25df192d9a1a5ed4
SHA1d5412da0f7608058918c322cc143bb771f25f16f
SHA2562795f3ed9b3e88edb0b8afe5e4b763cd6105d9a8ca18ae14bfd58a5ed9e4fb5e
SHA512348a99369467a0c864d73b2c22e84c09c89ad014448361c86f9fcbb909e10093c5b8c4032f24c176cbfc82e206eed379a3c08283784477633468dd36e9c2afc9