Analysis
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max time kernel
119s -
max time network
114s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
19-09-2024 05:56
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
81d3b5c3abd888345da43a96a2b9c6e70769317b5f738f1ef2e45f800c1412ecN.exe
Resource
win7-20240903-en
windows7-x64
13 signatures
120 seconds
Behavioral task
behavioral2
Sample
81d3b5c3abd888345da43a96a2b9c6e70769317b5f738f1ef2e45f800c1412ecN.exe
Resource
win10v2004-20240802-en
windows10-2004-x64
12 signatures
120 seconds
General
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Target
81d3b5c3abd888345da43a96a2b9c6e70769317b5f738f1ef2e45f800c1412ecN.exe
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Size
71KB
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MD5
91e7ea17217219ae6ff5e247a80486d0
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SHA1
67256a5f430a8f92745107bd607058c0360dc962
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SHA256
81d3b5c3abd888345da43a96a2b9c6e70769317b5f738f1ef2e45f800c1412ec
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SHA512
2b784d1f8ef7155d84d39aa10ccb83f18caea5f7c1b34de285386aee881e401f75fb2ea98b07c24fbfa6f90f5bba8c452cd7de5ad2f59c1078d1384df760cedc
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SSDEEP
1536:xCbu2+qEzyX/vh4K+AI5JZC17KNfMCIG3nc3ij/OVVhcEnYJhy:gu2+qEzyX/vh4K+AI5JZCMNbI2nSiDOJ
Score
10/10
Malware Config
Signatures
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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "25600" ourgeafon.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600" ourgeafon.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600" ourgeafon.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600" ourgeafon.exe -
Boot or Logon Autostart Execution: Active Setup 2 TTPs 4 IoCs
Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4B564957-4c50-554a-4B56-49574C50554a} ourgeafon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4B564957-4c50-554a-4B56-49574C50554a}\01234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123 = "a" ourgeafon.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4B564957-4c50-554a-4B56-49574C50554a}\IsInstalled = "1" ourgeafon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Active Setup\Installed Components\{4B564957-4c50-554a-4B56-49574C50554a}\StubPath = "C:\\Windows\\system32\\agxines.exe" ourgeafon.exe -
Event Triggered Execution: Image File Execution Options Injection 1 TTPs 3 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe ourgeafon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\0123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 = "a" ourgeafon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\Debugger = "C:\\Windows\\system32\\osboobak-emoas.exe" ourgeafon.exe -
Executes dropped EXE 2 IoCs
pid Process 4024 ourgeafon.exe 1244 ourgeafon.exe -
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusOverride = "25600" ourgeafon.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\AntiVirusDisableNotify = "25600" ourgeafon.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\FirewallDisableNotify = "25600" ourgeafon.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Security Center\UpdatesDisableNotify = "25600" ourgeafon.exe -
description ioc Process Delete value \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe\Debugger ourgeafon.exe -
Modifies WinLogon 2 TTPs 5 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B} ourgeafon.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify ourgeafon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345 = "a" ourgeafon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\DLLName = "C:\\Windows\\system32\\uthovof-edeab.dll" ourgeafon.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\{BC84DF00-BC38-9902-8082-6FCBF2D87A0B}\Startup = "Startup" ourgeafon.exe -
Drops file in System32 directory 9 IoCs
description ioc Process File opened for modification C:\Windows\SysWOW64\ourgeafon.exe 81d3b5c3abd888345da43a96a2b9c6e70769317b5f738f1ef2e45f800c1412ecN.exe File created C:\Windows\SysWOW64\ourgeafon.exe 81d3b5c3abd888345da43a96a2b9c6e70769317b5f738f1ef2e45f800c1412ecN.exe File created C:\Windows\SysWOW64\agxines.exe ourgeafon.exe File created C:\Windows\SysWOW64\uthovof-edeab.dll ourgeafon.exe File opened for modification C:\Windows\SysWOW64\ourgeafon.exe ourgeafon.exe File opened for modification C:\Windows\SysWOW64\osboobak-emoas.exe ourgeafon.exe File created C:\Windows\SysWOW64\osboobak-emoas.exe ourgeafon.exe File opened for modification C:\Windows\SysWOW64\agxines.exe ourgeafon.exe File opened for modification C:\Windows\SysWOW64\uthovof-edeab.dll ourgeafon.exe -
System Location Discovery: System Language Discovery 1 TTPs 2 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 81d3b5c3abd888345da43a96a2b9c6e70769317b5f738f1ef2e45f800c1412ecN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ourgeafon.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 4024 ourgeafon.exe 4024 ourgeafon.exe 1244 ourgeafon.exe 1244 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe 4024 ourgeafon.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4024 ourgeafon.exe -
Suspicious use of WriteProcessMemory 64 IoCs
description pid Process procid_target PID 2144 wrote to memory of 4024 2144 81d3b5c3abd888345da43a96a2b9c6e70769317b5f738f1ef2e45f800c1412ecN.exe 82 PID 2144 wrote to memory of 4024 2144 81d3b5c3abd888345da43a96a2b9c6e70769317b5f738f1ef2e45f800c1412ecN.exe 82 PID 2144 wrote to memory of 4024 2144 81d3b5c3abd888345da43a96a2b9c6e70769317b5f738f1ef2e45f800c1412ecN.exe 82 PID 4024 wrote to memory of 1244 4024 ourgeafon.exe 83 PID 4024 wrote to memory of 1244 4024 ourgeafon.exe 83 PID 4024 wrote to memory of 1244 4024 ourgeafon.exe 83 PID 4024 wrote to memory of 624 4024 ourgeafon.exe 5 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56 PID 4024 wrote to memory of 3376 4024 ourgeafon.exe 56
Processes
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C:\Windows\system32\winlogon.exewinlogon.exe1⤵PID:624
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:3376
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C:\Users\Admin\AppData\Local\Temp\81d3b5c3abd888345da43a96a2b9c6e70769317b5f738f1ef2e45f800c1412ecN.exe"C:\Users\Admin\AppData\Local\Temp\81d3b5c3abd888345da43a96a2b9c6e70769317b5f738f1ef2e45f800c1412ecN.exe"2⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2144 -
C:\Windows\SysWOW64\ourgeafon.exe"C:\Windows\SysWOW64\ourgeafon.exe"3⤵
- Windows security bypass
- Boot or Logon Autostart Execution: Active Setup
- Event Triggered Execution: Image File Execution Options Injection
- Executes dropped EXE
- Windows security modification
- Indicator Removal: Clear Persistence
- Modifies WinLogon
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4024 -
C:\Windows\SysWOW64\ourgeafon.exe--k33p4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:1244
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
2Active Setup
1Winlogon Helper DLL
1Event Triggered Execution
1Image File Execution Options Injection
1Privilege Escalation
Boot or Logon Autostart Execution
2Active Setup
1Winlogon Helper DLL
1Event Triggered Execution
1Image File Execution Options Injection
1Replay Monitor
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Downloads
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Filesize
71KB
MD54ba9ac85957606739c750fea20c05e31
SHA1a96244b8161ec33e4279c01f1086a84fb45a376e
SHA2567a9fdf5e2775122dec85941076bb5b990e4ceda233262d7bd826dd9587cc0fe4
SHA51262760d7984b1f50f2daf22c27549c06d9182859f70cff7a6de8b787e12ca1bd29068b60b8c54bf85c73c84d7bd4c22965a4b47cf9422cfb064caeaaa969d63d5
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Filesize
72KB
MD5e11b64a0b0d06c356359931354d80ec6
SHA1723ded4f51464411aee277a2ae7472fee44ca6e4
SHA2566fb0fd9b342187c7e5486c93cb88646e032c42d958ac6dff12017145b5bbcc77
SHA5122fdeffc95974e7b10be7dc26376c01302c3a5c55b21fb9fb5b38dbf7e4f8e0e46b509c0f3b01f246438a905f735382ef25a9c88bfc44df141e139adaee4feb81
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Filesize
68KB
MD5753a7c7814a258f71cbe0d8d32663fa5
SHA11c2256b5d0ddc6d2e0ca5b44e0ea9aab832fb69c
SHA256740c16aaf9acdfd1aac8131f1ea244652fe3c0e57a1d5175ff9ba7094de0fc1b
SHA512b130da6d07edb6f8058f97bd18eaec07cb7db91688c193f4ebb63d738329383891bde169d2e9af4a1b8138e059530b962561ab49bd9188caeeb042bd74312bfd
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Filesize
5KB
MD5f37b21c00fd81bd93c89ce741a88f183
SHA1b2796500597c68e2f5638e1101b46eaf32676c1c
SHA25676cf016fd77cb5a06c6ed4674ddc2345e8390c010cf344491a6e742baf2c0fb0
SHA512252fe66dea9a4b9aebc5fd2f24434719cb25159ba51549d9de407f44b6a2f7bce6e071be02c4f2ad6aef588c77f12c00ed415eb54f96dec1b077326e101ce0f4