Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
17-12-2024 04:21
Static task
static1
Behavioral task
behavioral1
Sample
b42e54290ed4aad3ce47fee33a85c5438736e76c26f85a6e422a9da60203f219.exe
Resource
win7-20241023-en
General
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Target
b42e54290ed4aad3ce47fee33a85c5438736e76c26f85a6e422a9da60203f219.exe
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Size
1.7MB
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MD5
d8c2dbe1dc35a7cdac6842d48fecb333
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SHA1
e2c05c1cd61c9085f23f1462acdc10444c52dc0a
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SHA256
b42e54290ed4aad3ce47fee33a85c5438736e76c26f85a6e422a9da60203f219
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SHA512
b90e0dbc88945aa4c75cfe4c9b6b8e9046a363eaca6797a8fe44b27e9c9224e06b1380465cb61439256f64fce05f8d5006bb932101b3d42970cb5db6a0ae5dc7
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SSDEEP
49152:KVGfuwDAsjKlaPIfyJsEQgRT4+Agta6x:IGfj9PIyWEfRTUw
Malware Config
Extracted
lumma
https://sordid-snaked.cyou/api
https://awake-weaves.cyou/api
https://wrathful-jammy.cyou/api
https://debonairnukk.xyz/api
https://diffuculttan.xyz/api
https://effecterectz.xyz/api
https://deafeninggeh.biz/api
https://immureprech.biz/api
https://tacitglibbr.biz/api
Extracted
stealc
stok
http://185.215.113.206
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url_path
/c4becf79229cb002.php
Extracted
lumma
https://tacitglibbr.biz/api
Signatures
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Lumma family
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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableBehaviorMonitoring = "1" TG7TCAJ3LVXWA8JF1LS.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableIOAVProtection = "1" TG7TCAJ3LVXWA8JF1LS.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableOnAccessProtection = "1" TG7TCAJ3LVXWA8JF1LS.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1" TG7TCAJ3LVXWA8JF1LS.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection\DisableScanOnRealtimeEnable = "1" TG7TCAJ3LVXWA8JF1LS.exe Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Policies\Microsoft\Windows Defender\Real-Time Protection TG7TCAJ3LVXWA8JF1LS.exe -
Stealc family
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Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ TG7TCAJ3LVXWA8JF1LS.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ R5FWT2RTDM58RLJ6PS4D9TP.exe Key opened \REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__ b42e54290ed4aad3ce47fee33a85c5438736e76c26f85a6e422a9da60203f219.exe -
Downloads MZ/PE file
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Checks BIOS information in registry 2 TTPs 6 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion b42e54290ed4aad3ce47fee33a85c5438736e76c26f85a6e422a9da60203f219.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion b42e54290ed4aad3ce47fee33a85c5438736e76c26f85a6e422a9da60203f219.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion TG7TCAJ3LVXWA8JF1LS.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion TG7TCAJ3LVXWA8JF1LS.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion R5FWT2RTDM58RLJ6PS4D9TP.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion R5FWT2RTDM58RLJ6PS4D9TP.exe -
Executes dropped EXE 2 IoCs
pid Process 1808 TG7TCAJ3LVXWA8JF1LS.exe 4108 R5FWT2RTDM58RLJ6PS4D9TP.exe -
Identifies Wine through registry keys 2 TTPs 3 IoCs
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Wine b42e54290ed4aad3ce47fee33a85c5438736e76c26f85a6e422a9da60203f219.exe Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Wine TG7TCAJ3LVXWA8JF1LS.exe Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Wine R5FWT2RTDM58RLJ6PS4D9TP.exe -
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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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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description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features TG7TCAJ3LVXWA8JF1LS.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0" TG7TCAJ3LVXWA8JF1LS.exe -
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
pid Process 2932 b42e54290ed4aad3ce47fee33a85c5438736e76c26f85a6e422a9da60203f219.exe 1808 TG7TCAJ3LVXWA8JF1LS.exe 4108 R5FWT2RTDM58RLJ6PS4D9TP.exe -
System Location Discovery: System Language Discovery 1 TTPs 3 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 b42e54290ed4aad3ce47fee33a85c5438736e76c26f85a6e422a9da60203f219.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language TG7TCAJ3LVXWA8JF1LS.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language R5FWT2RTDM58RLJ6PS4D9TP.exe -
Suspicious behavior: EnumeratesProcesses 12 IoCs
pid Process 2932 b42e54290ed4aad3ce47fee33a85c5438736e76c26f85a6e422a9da60203f219.exe 2932 b42e54290ed4aad3ce47fee33a85c5438736e76c26f85a6e422a9da60203f219.exe 2932 b42e54290ed4aad3ce47fee33a85c5438736e76c26f85a6e422a9da60203f219.exe 2932 b42e54290ed4aad3ce47fee33a85c5438736e76c26f85a6e422a9da60203f219.exe 2932 b42e54290ed4aad3ce47fee33a85c5438736e76c26f85a6e422a9da60203f219.exe 2932 b42e54290ed4aad3ce47fee33a85c5438736e76c26f85a6e422a9da60203f219.exe 1808 TG7TCAJ3LVXWA8JF1LS.exe 1808 TG7TCAJ3LVXWA8JF1LS.exe 4108 R5FWT2RTDM58RLJ6PS4D9TP.exe 4108 R5FWT2RTDM58RLJ6PS4D9TP.exe 1808 TG7TCAJ3LVXWA8JF1LS.exe 1808 TG7TCAJ3LVXWA8JF1LS.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1808 TG7TCAJ3LVXWA8JF1LS.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 2932 wrote to memory of 1808 2932 b42e54290ed4aad3ce47fee33a85c5438736e76c26f85a6e422a9da60203f219.exe 90 PID 2932 wrote to memory of 1808 2932 b42e54290ed4aad3ce47fee33a85c5438736e76c26f85a6e422a9da60203f219.exe 90 PID 2932 wrote to memory of 1808 2932 b42e54290ed4aad3ce47fee33a85c5438736e76c26f85a6e422a9da60203f219.exe 90 PID 2932 wrote to memory of 4108 2932 b42e54290ed4aad3ce47fee33a85c5438736e76c26f85a6e422a9da60203f219.exe 91 PID 2932 wrote to memory of 4108 2932 b42e54290ed4aad3ce47fee33a85c5438736e76c26f85a6e422a9da60203f219.exe 91 PID 2932 wrote to memory of 4108 2932 b42e54290ed4aad3ce47fee33a85c5438736e76c26f85a6e422a9da60203f219.exe 91
Processes
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C:\Users\Admin\AppData\Local\Temp\b42e54290ed4aad3ce47fee33a85c5438736e76c26f85a6e422a9da60203f219.exe"C:\Users\Admin\AppData\Local\Temp\b42e54290ed4aad3ce47fee33a85c5438736e76c26f85a6e422a9da60203f219.exe"1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2932 -
C:\Users\Admin\AppData\Local\Temp\TG7TCAJ3LVXWA8JF1LS.exe"C:\Users\Admin\AppData\Local\Temp\TG7TCAJ3LVXWA8JF1LS.exe"2⤵
- Modifies Windows Defender Real-time Protection settings
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Windows security modification
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1808
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C:\Users\Admin\AppData\Local\Temp\R5FWT2RTDM58RLJ6PS4D9TP.exe"C:\Users\Admin\AppData\Local\Temp\R5FWT2RTDM58RLJ6PS4D9TP.exe"2⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Executes dropped EXE
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:4108
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Network
MITRE ATT&CK Enterprise v15
Defense Evasion
Impair Defenses
2Disable or Modify Tools
2Modify Registry
2Virtualization/Sandbox Evasion
2Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
3Credentials In Files
3Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2.8MB
MD57d8e297d9b2cdcb4bfc19cb761f0abf8
SHA17c41c6737ebc85cee2b5f61fdc515606356ed262
SHA2568a988b1b507d489e9627de9f397353e9713e8bdd8125686d3fbcba852ca77bf6
SHA512e937f013c613a5b5ad6df0ceb78b97711328c767bb353ecdc61f29e72e64bced3dde757c5a77ae1516d902e5099f10c9b2455381610f4827d52c2b44e6d4fd41
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Filesize
1.7MB
MD52bd7be5558ce4203112063f6b2c45454
SHA1c0aa5acecc953e6cab2482b12c9e31ee9ce2804c
SHA256be4d98eb32b36999f88fa786b3ee8d77abf2177421c04984c27e16aa8153e4aa
SHA51269e472d56b45a8ce6df10725f80e20738327a4d9037894e8da910747081ce9496e5c4c59cf23a128088cea1c62a514ddf457680854a37cdcf27c22eeffe546f2