Analysis
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max time kernel
36s -
max time network
35s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
03-10-2024 19:46
Static task
static1
Behavioral task
behavioral1
Sample
5b41291f73a514e0f2e432f4cf3345d5288af613c04b1c7549cd7d30c6d96a67.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
5b41291f73a514e0f2e432f4cf3345d5288af613c04b1c7549cd7d30c6d96a67.exe
Resource
win10v2004-20240802-en
General
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Target
5b41291f73a514e0f2e432f4cf3345d5288af613c04b1c7549cd7d30c6d96a67.exe
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Size
282KB
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MD5
ae05ab72d8dbb35a8b17af6681139515
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SHA1
76619f7e9ff8c13ad4ceb0d2f694eff58941e34c
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SHA256
5b41291f73a514e0f2e432f4cf3345d5288af613c04b1c7549cd7d30c6d96a67
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SHA512
06f9e06e5a953b36a8d6706d788e931ae7117ba5075da984b52209113350434f026a68197e9acfa98a96991092f82f4a0d242f7f0a6d3a3d13561e73564b45db
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SSDEEP
6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkfc:boSeGUA5YZazpXUmZhZ6SV
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
5b41291f73a514e0f2e432f4cf3345d5288af613c04b1c7549cd7d30c6d96a67.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\Control Panel\International\Geo\Nation 5b41291f73a514e0f2e432f4cf3345d5288af613c04b1c7549cd7d30c6d96a67.exe -
Executes dropped EXE 1 IoCs
Processes:
a1punf5t2of.exepid Process 1160 a1punf5t2of.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
5b41291f73a514e0f2e432f4cf3345d5288af613c04b1c7549cd7d30c6d96a67.exedescription ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-656926755-4116854191-210765258-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" 5b41291f73a514e0f2e432f4cf3345d5288af613c04b1c7549cd7d30c6d96a67.exe -
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 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
5b41291f73a514e0f2e432f4cf3345d5288af613c04b1c7549cd7d30c6d96a67.exea1punf5t2of.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 5b41291f73a514e0f2e432f4cf3345d5288af613c04b1c7549cd7d30c6d96a67.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language a1punf5t2of.exe -
Suspicious use of WriteProcessMemory 6 IoCs
Processes:
5b41291f73a514e0f2e432f4cf3345d5288af613c04b1c7549cd7d30c6d96a67.exea1punf5t2of.exedescription pid Process procid_target PID 4172 wrote to memory of 1160 4172 5b41291f73a514e0f2e432f4cf3345d5288af613c04b1c7549cd7d30c6d96a67.exe 89 PID 4172 wrote to memory of 1160 4172 5b41291f73a514e0f2e432f4cf3345d5288af613c04b1c7549cd7d30c6d96a67.exe 89 PID 4172 wrote to memory of 1160 4172 5b41291f73a514e0f2e432f4cf3345d5288af613c04b1c7549cd7d30c6d96a67.exe 89 PID 1160 wrote to memory of 3080 1160 a1punf5t2of.exe 92 PID 1160 wrote to memory of 3080 1160 a1punf5t2of.exe 92 PID 1160 wrote to memory of 3080 1160 a1punf5t2of.exe 92
Processes
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C:\Users\Admin\AppData\Local\Temp\5b41291f73a514e0f2e432f4cf3345d5288af613c04b1c7549cd7d30c6d96a67.exe"C:\Users\Admin\AppData\Local\Temp\5b41291f73a514e0f2e432f4cf3345d5288af613c04b1c7549cd7d30c6d96a67.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4172 -
C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1160 -
C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"3⤵PID:3080
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
282KB
MD576413ac55fea23bdf6508e5ce1024702
SHA150555f0cdd3e40dc2c0402eff2f8132dc98c175d
SHA256067d07fa80744257c0ad58cec23a28f47790d63470f904c3d066f68898b3b2f1
SHA5125e86979e7fe46a7639fd0f153f458b2176a6484b18895e2e0509f1636616d8144dfb692ff06197d7b331a8d51923c0d62bd7d1712095ef905321862f17b9aee5