Analysis
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max time kernel
125s -
max time network
127s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
05/08/2024, 07:15
Static task
static1
Behavioral task
behavioral1
Sample
MalwareBazaar.exe
Resource
win7-20240704-en
General
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Target
MalwareBazaar.exe
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Size
797KB
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MD5
8718d3b1d0a9550282544407fe4611b5
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SHA1
39d3ad59b8171f98e36455332261cd3b8ae69efa
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SHA256
45a822e7976bd1a2e146ca406840eb17a1686f3617d83b2046919064c938232d
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SHA512
5d09ad49b557b0a242e6077937e05c7be51620a89adc0be49883045148a7c01e2a26aadb603855160f21fa29929092400f323e0ae28c8089d3653c40307fbb3b
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SSDEEP
24576:x6xaakhDbnMNWyGx14ru/1kmNmf+JPspT6:GChDrMNWPn/1kNf+JPsF6
Malware Config
Signatures
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Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 1084 powershell.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-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation MalwareBazaar.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4496 set thread context of 2932 4496 MalwareBazaar.exe 98 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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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 MalwareBazaar.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 3648 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 19 IoCs
pid Process 4496 MalwareBazaar.exe 4496 MalwareBazaar.exe 4496 MalwareBazaar.exe 1084 powershell.exe 1084 powershell.exe 2932 RegSvcs.exe 2932 RegSvcs.exe 2932 RegSvcs.exe 2932 RegSvcs.exe 2932 RegSvcs.exe 2932 RegSvcs.exe 2932 RegSvcs.exe 2932 RegSvcs.exe 2932 RegSvcs.exe 2932 RegSvcs.exe 2932 RegSvcs.exe 2932 RegSvcs.exe 2932 RegSvcs.exe 2932 RegSvcs.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 4496 MalwareBazaar.exe Token: SeDebugPrivilege 1084 powershell.exe -
Suspicious use of WriteProcessMemory 16 IoCs
description pid Process procid_target PID 4496 wrote to memory of 1084 4496 MalwareBazaar.exe 94 PID 4496 wrote to memory of 1084 4496 MalwareBazaar.exe 94 PID 4496 wrote to memory of 1084 4496 MalwareBazaar.exe 94 PID 4496 wrote to memory of 3648 4496 MalwareBazaar.exe 96 PID 4496 wrote to memory of 3648 4496 MalwareBazaar.exe 96 PID 4496 wrote to memory of 3648 4496 MalwareBazaar.exe 96 PID 4496 wrote to memory of 2932 4496 MalwareBazaar.exe 98 PID 4496 wrote to memory of 2932 4496 MalwareBazaar.exe 98 PID 4496 wrote to memory of 2932 4496 MalwareBazaar.exe 98 PID 4496 wrote to memory of 2932 4496 MalwareBazaar.exe 98 PID 4496 wrote to memory of 2932 4496 MalwareBazaar.exe 98 PID 4496 wrote to memory of 2932 4496 MalwareBazaar.exe 98 PID 4496 wrote to memory of 2932 4496 MalwareBazaar.exe 98 PID 4496 wrote to memory of 2932 4496 MalwareBazaar.exe 98 PID 4496 wrote to memory of 2932 4496 MalwareBazaar.exe 98 PID 4496 wrote to memory of 2932 4496 MalwareBazaar.exe 98
Processes
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C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4496 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zAvLHYWJkwVKS.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1084
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zAvLHYWJkwVKS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7D3A.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:3648
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
PID:2932
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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 --field-trial-handle=4252,i,2727319350781907497,7925939240893079607,262144 --variations-seed-version --mojo-platform-channel-handle=4132 /prefetch:81⤵PID:2064
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD58b3cb54df154ef8037954ade7ed7a900
SHA195db6f8d69590ab7efe4f9bb077c00ed1c20b71a
SHA2563e6e1de4084b52ce81dc0ae2c47ac58d9ab23d3fe8964f37097cdbff256bfd6a
SHA5125533711f7f82dcaab63bdaf879370bfa509227ed3be1304067ef138b35cc5d1ce8a4dd8405dcdec9e1b8d4d58199b4835c05a882509b8643fb6e6d2d690bf20a