Analysis
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max time kernel
1s -
max time network
147s -
platform
windows10-2004_x64 -
resource
win10v2004-20231222-en -
resource tags
arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system -
submitted
07/01/2024, 19:21
Static task
static1
Behavioral task
behavioral1
Sample
a511396442a36431fa575db4a1db79be.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
a511396442a36431fa575db4a1db79be.exe
Resource
win10v2004-20231222-en
General
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Target
a511396442a36431fa575db4a1db79be.exe
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Size
512KB
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MD5
a511396442a36431fa575db4a1db79be
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SHA1
2559152c5fdd746f76c9335e1b4fafcb16657b6d
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SHA256
7daaabc1b929c83288bc103aa3b60d23df7e17d3616ec899027abf08cb7efce3
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SHA512
035461372a5393f04d4bdc500872fc09368e2d2ffb8eba26d59120038b516aeeab4a83f10a294fbd22b694e768d5730a5da21d0599439278e49054a72839f4be
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SSDEEP
6144:1VY0W0sVVZ/dkq5BCoFaJ2i5Lf24C07N5OvSLTUF6pQxI6Upe2cBnTu19bcodj62:1gDhdkq5BCoC5LfWSLTUQpr2Zu19Qm5/
Malware Config
Signatures
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Modifies visibility of file extensions in Explorer 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\HideFileExt = "1" gqrvcvfvws.exe -
Modifies visiblity of hidden/system files in Explorer 2 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" gqrvcvfvws.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" gqrvcvfvws.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" gqrvcvfvws.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" gqrvcvfvws.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" gqrvcvfvws.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" gqrvcvfvws.exe -
Disables RegEdit via registry modification 1 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools = "1" gqrvcvfvws.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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation a511396442a36431fa575db4a1db79be.exe -
Executes dropped EXE 5 IoCs
pid Process 2272 gqrvcvfvws.exe 4392 ockacaabryqpnuw.exe 2984 nnkerwzo.exe 5056 vqssoglepddkl.exe 2648 nnkerwzo.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "1" gqrvcvfvws.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "1" gqrvcvfvws.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirstRunDisabled = "1" gqrvcvfvws.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "1" gqrvcvfvws.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallOverride = "1" gqrvcvfvws.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "1" gqrvcvfvws.exe -
Adds Run key to start application 2 TTPs 3 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\uctdpphw = "gqrvcvfvws.exe" ockacaabryqpnuw.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\luxzuzux = "ockacaabryqpnuw.exe" ockacaabryqpnuw.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ = "vqssoglepddkl.exe" ockacaabryqpnuw.exe -
Enumerates connected drives 3 TTPs 46 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
description ioc Process File opened (read-only) \??\w: nnkerwzo.exe File opened (read-only) \??\z: gqrvcvfvws.exe File opened (read-only) \??\k: gqrvcvfvws.exe File opened (read-only) \??\t: gqrvcvfvws.exe File opened (read-only) \??\w: gqrvcvfvws.exe File opened (read-only) \??\o: nnkerwzo.exe File opened (read-only) \??\a: gqrvcvfvws.exe File opened (read-only) \??\p: gqrvcvfvws.exe File opened (read-only) \??\u: gqrvcvfvws.exe File opened (read-only) \??\y: gqrvcvfvws.exe File opened (read-only) \??\a: nnkerwzo.exe File opened (read-only) \??\m: nnkerwzo.exe File opened (read-only) \??\t: nnkerwzo.exe File opened (read-only) \??\y: nnkerwzo.exe File opened (read-only) \??\e: gqrvcvfvws.exe File opened (read-only) \??\m: gqrvcvfvws.exe File opened (read-only) \??\o: gqrvcvfvws.exe File opened (read-only) \??\s: gqrvcvfvws.exe File opened (read-only) \??\g: nnkerwzo.exe File opened (read-only) \??\r: nnkerwzo.exe File opened (read-only) \??\x: gqrvcvfvws.exe File opened (read-only) \??\v: nnkerwzo.exe File opened (read-only) \??\z: nnkerwzo.exe File opened (read-only) \??\g: gqrvcvfvws.exe File opened (read-only) \??\n: gqrvcvfvws.exe File opened (read-only) \??\v: gqrvcvfvws.exe File opened (read-only) \??\b: nnkerwzo.exe File opened (read-only) \??\e: nnkerwzo.exe File opened (read-only) \??\b: gqrvcvfvws.exe File opened (read-only) \??\h: gqrvcvfvws.exe File opened (read-only) \??\l: gqrvcvfvws.exe File opened (read-only) \??\k: nnkerwzo.exe File opened (read-only) \??\n: nnkerwzo.exe File opened (read-only) \??\s: nnkerwzo.exe File opened (read-only) \??\i: gqrvcvfvws.exe File opened (read-only) \??\r: gqrvcvfvws.exe File opened (read-only) \??\p: nnkerwzo.exe File opened (read-only) \??\q: nnkerwzo.exe File opened (read-only) \??\j: nnkerwzo.exe File opened (read-only) \??\l: nnkerwzo.exe File opened (read-only) \??\u: nnkerwzo.exe File opened (read-only) \??\x: nnkerwzo.exe File opened (read-only) \??\j: gqrvcvfvws.exe File opened (read-only) \??\q: gqrvcvfvws.exe File opened (read-only) \??\h: nnkerwzo.exe File opened (read-only) \??\i: nnkerwzo.exe -
Modifies WinLogon 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\SFCScan = "0" gqrvcvfvws.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\SFCDisable = "4294967197" gqrvcvfvws.exe -
AutoIT Executable 3 IoCs
AutoIT scripts compiled to PE executables.
resource yara_rule behavioral2/memory/1912-0-0x0000000000400000-0x0000000000496000-memory.dmp autoit_exe behavioral2/files/0x0007000000023210-18.dat autoit_exe behavioral2/files/0x0007000000023213-5.dat autoit_exe -
Drops file in System32 directory 9 IoCs
description ioc Process File created C:\Windows\SysWOW64\ockacaabryqpnuw.exe a511396442a36431fa575db4a1db79be.exe File opened for modification C:\Windows\SysWOW64\ockacaabryqpnuw.exe a511396442a36431fa575db4a1db79be.exe File opened for modification C:\Windows\SysWOW64\nnkerwzo.exe a511396442a36431fa575db4a1db79be.exe File opened for modification C:\Windows\SysWOW64\vqssoglepddkl.exe a511396442a36431fa575db4a1db79be.exe File created C:\Windows\SysWOW64\gqrvcvfvws.exe a511396442a36431fa575db4a1db79be.exe File opened for modification C:\Windows\SysWOW64\gqrvcvfvws.exe a511396442a36431fa575db4a1db79be.exe File opened for modification C:\Windows\SysWOW64\msvbvm60.dll gqrvcvfvws.exe File created C:\Windows\SysWOW64\nnkerwzo.exe a511396442a36431fa575db4a1db79be.exe File created C:\Windows\SysWOW64\vqssoglepddkl.exe a511396442a36431fa575db4a1db79be.exe -
Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification C:\Windows\mydoc.rtf a511396442a36431fa575db4a1db79be.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Modifies registry class 20 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com2 = "6ABAFACEF966F19883083B40869A3993B38D03FD42690239E1BF459E09D4" a511396442a36431fa575db4a1db79be.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com4 = "7F8CFCF94F5A82129137D7207DE0BD93E632594367436335D798" a511396442a36431fa575db4a1db79be.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\StartCom1 = "E0F46BB6FF1B21DCD10BD1D58A0E9014" a511396442a36431fa575db4a1db79be.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.wsc\ = "txtfile" gqrvcvfvws.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.vbs\ = "txtfile" gqrvcvfvws.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.reg gqrvcvfvws.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com1 = "33442D799D5282596A3F77D670202DD87CF265DA" a511396442a36431fa575db4a1db79be.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\StartCom2 = "184CC7741493DBB1B9C17F97ECE237BA" a511396442a36431fa575db4a1db79be.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.WSH\ = "txtfile" gqrvcvfvws.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.wsc gqrvcvfvws.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.reg\ = "txtfile" gqrvcvfvws.exe Key created \REGISTRY\MACHINE\Software\Classes\CLV.Classes a511396442a36431fa575db4a1db79be.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\CLV.Classes\Com3 = "2FC5B15D47E5399852CCB9D5339FD7C9" a511396442a36431fa575db4a1db79be.exe Key created \REGISTRY\USER\S-1-5-21-1168293393-3419776239-306423207-1000_Classes\Local Settings a511396442a36431fa575db4a1db79be.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.bat gqrvcvfvws.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.bat\ = "txtfile" gqrvcvfvws.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.wsh gqrvcvfvws.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.wsf gqrvcvfvws.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\.WSF\ = "txtfile" gqrvcvfvws.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\.vbs gqrvcvfvws.exe -
Suspicious behavior: AddClipboardFormatListener 2 IoCs
pid Process 2056 WINWORD.EXE 2056 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 58 IoCs
pid Process 1912 a511396442a36431fa575db4a1db79be.exe 1912 a511396442a36431fa575db4a1db79be.exe 1912 a511396442a36431fa575db4a1db79be.exe 1912 a511396442a36431fa575db4a1db79be.exe 1912 a511396442a36431fa575db4a1db79be.exe 1912 a511396442a36431fa575db4a1db79be.exe 1912 a511396442a36431fa575db4a1db79be.exe 1912 a511396442a36431fa575db4a1db79be.exe 1912 a511396442a36431fa575db4a1db79be.exe 1912 a511396442a36431fa575db4a1db79be.exe 1912 a511396442a36431fa575db4a1db79be.exe 1912 a511396442a36431fa575db4a1db79be.exe 1912 a511396442a36431fa575db4a1db79be.exe 1912 a511396442a36431fa575db4a1db79be.exe 1912 a511396442a36431fa575db4a1db79be.exe 1912 a511396442a36431fa575db4a1db79be.exe 2272 gqrvcvfvws.exe 2272 gqrvcvfvws.exe 2272 gqrvcvfvws.exe 2272 gqrvcvfvws.exe 2272 gqrvcvfvws.exe 2272 gqrvcvfvws.exe 2272 gqrvcvfvws.exe 2272 gqrvcvfvws.exe 2272 gqrvcvfvws.exe 2272 gqrvcvfvws.exe 4392 ockacaabryqpnuw.exe 4392 ockacaabryqpnuw.exe 4392 ockacaabryqpnuw.exe 4392 ockacaabryqpnuw.exe 4392 ockacaabryqpnuw.exe 4392 ockacaabryqpnuw.exe 4392 ockacaabryqpnuw.exe 4392 ockacaabryqpnuw.exe 2984 nnkerwzo.exe 2984 nnkerwzo.exe 2984 nnkerwzo.exe 2984 nnkerwzo.exe 2984 nnkerwzo.exe 2984 nnkerwzo.exe 2984 nnkerwzo.exe 2984 nnkerwzo.exe 4392 ockacaabryqpnuw.exe 4392 ockacaabryqpnuw.exe 5056 vqssoglepddkl.exe 5056 vqssoglepddkl.exe 5056 vqssoglepddkl.exe 5056 vqssoglepddkl.exe 5056 vqssoglepddkl.exe 5056 vqssoglepddkl.exe 5056 vqssoglepddkl.exe 5056 vqssoglepddkl.exe 5056 vqssoglepddkl.exe 5056 vqssoglepddkl.exe 5056 vqssoglepddkl.exe 5056 vqssoglepddkl.exe 4392 ockacaabryqpnuw.exe 4392 ockacaabryqpnuw.exe -
Suspicious use of FindShellTrayWindow 18 IoCs
pid Process 1912 a511396442a36431fa575db4a1db79be.exe 1912 a511396442a36431fa575db4a1db79be.exe 1912 a511396442a36431fa575db4a1db79be.exe 2272 gqrvcvfvws.exe 2272 gqrvcvfvws.exe 2272 gqrvcvfvws.exe 4392 ockacaabryqpnuw.exe 4392 ockacaabryqpnuw.exe 4392 ockacaabryqpnuw.exe 2984 nnkerwzo.exe 5056 vqssoglepddkl.exe 2984 nnkerwzo.exe 5056 vqssoglepddkl.exe 2984 nnkerwzo.exe 5056 vqssoglepddkl.exe 2648 nnkerwzo.exe 2648 nnkerwzo.exe 2648 nnkerwzo.exe -
Suspicious use of SendNotifyMessage 18 IoCs
pid Process 1912 a511396442a36431fa575db4a1db79be.exe 1912 a511396442a36431fa575db4a1db79be.exe 1912 a511396442a36431fa575db4a1db79be.exe 2272 gqrvcvfvws.exe 2272 gqrvcvfvws.exe 2272 gqrvcvfvws.exe 4392 ockacaabryqpnuw.exe 4392 ockacaabryqpnuw.exe 4392 ockacaabryqpnuw.exe 2984 nnkerwzo.exe 5056 vqssoglepddkl.exe 2984 nnkerwzo.exe 5056 vqssoglepddkl.exe 2984 nnkerwzo.exe 5056 vqssoglepddkl.exe 2648 nnkerwzo.exe 2648 nnkerwzo.exe 2648 nnkerwzo.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2056 WINWORD.EXE 2056 WINWORD.EXE -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 1912 wrote to memory of 2272 1912 a511396442a36431fa575db4a1db79be.exe 27 PID 1912 wrote to memory of 2272 1912 a511396442a36431fa575db4a1db79be.exe 27 PID 1912 wrote to memory of 2272 1912 a511396442a36431fa575db4a1db79be.exe 27 PID 1912 wrote to memory of 4392 1912 a511396442a36431fa575db4a1db79be.exe 26 PID 1912 wrote to memory of 4392 1912 a511396442a36431fa575db4a1db79be.exe 26 PID 1912 wrote to memory of 4392 1912 a511396442a36431fa575db4a1db79be.exe 26 PID 1912 wrote to memory of 2984 1912 a511396442a36431fa575db4a1db79be.exe 25 PID 1912 wrote to memory of 2984 1912 a511396442a36431fa575db4a1db79be.exe 25 PID 1912 wrote to memory of 2984 1912 a511396442a36431fa575db4a1db79be.exe 25 PID 1912 wrote to memory of 5056 1912 a511396442a36431fa575db4a1db79be.exe 24 PID 1912 wrote to memory of 5056 1912 a511396442a36431fa575db4a1db79be.exe 24 PID 1912 wrote to memory of 5056 1912 a511396442a36431fa575db4a1db79be.exe 24 PID 1912 wrote to memory of 2056 1912 a511396442a36431fa575db4a1db79be.exe 19 PID 1912 wrote to memory of 2056 1912 a511396442a36431fa575db4a1db79be.exe 19 PID 2272 wrote to memory of 2648 2272 gqrvcvfvws.exe 23 PID 2272 wrote to memory of 2648 2272 gqrvcvfvws.exe 23 PID 2272 wrote to memory of 2648 2272 gqrvcvfvws.exe 23
Processes
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C:\Users\Admin\AppData\Local\Temp\a511396442a36431fa575db4a1db79be.exe"C:\Users\Admin\AppData\Local\Temp\a511396442a36431fa575db4a1db79be.exe"1⤵
- Checks computer location settings
- Drops file in System32 directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1912 -
C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE"C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Windows\mydoc.rtf" /o ""2⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:2056
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C:\Windows\SysWOW64\vqssoglepddkl.exevqssoglepddkl.exe2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:5056
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C:\Windows\SysWOW64\nnkerwzo.exennkerwzo.exe2⤵
- Executes dropped EXE
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2984
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C:\Windows\SysWOW64\ockacaabryqpnuw.exeockacaabryqpnuw.exe2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:4392
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C:\Windows\SysWOW64\gqrvcvfvws.exegqrvcvfvws.exe2⤵
- Modifies visibility of file extensions in Explorer
- Modifies visiblity of hidden/system files in Explorer
- Windows security bypass
- Disables RegEdit via registry modification
- Executes dropped EXE
- Windows security modification
- Enumerates connected drives
- Modifies WinLogon
- Drops file in System32 directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2272
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C:\Windows\SysWOW64\nnkerwzo.exeC:\Windows\system32\nnkerwzo.exe1⤵
- Executes dropped EXE
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:2648
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Privilege Escalation
Boot or Logon Autostart Execution
2Registry Run Keys / Startup Folder
1Winlogon Helper DLL
1Defense Evasion
Hide Artifacts
2Hidden Files and Directories
2Impair Defenses
2Disable or Modify Tools
2Modify Registry
6Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
92KB
MD56662b185f19fbf697c56a25c92de7961
SHA10df0c0df0de3724258df2549c583e3c934aca726
SHA256c11edb9e97848e20319fba876d9382c7193f68323eff1f7ed805bb04303bdc86
SHA512c6e2cb83f68a63ca299dae843d2697d41dab8b565fb4005755b0d255b388779b6c1dad97375009c995f0a3d2e0acb4cc820090ca5dc24ee11e1a3de5b1a4921f
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Filesize
99KB
MD57fc6cf931da79ecd4267f22c6a1aefa8
SHA1913682b9a75a4089cc18ec25b28e082916a6b314
SHA2562672445b36639d26c7bcf277704d7f634ea7a6f4eac634027b98fb3f94062487
SHA512272947751145ba29cbfecc6fe73cf5e20cf017c8c436a8af45198499e8b34c5f70215c3d5f21676a2a5de87616e85aa12b5cf0e263d57042e4221f7e12d81eaf