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Analysis
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max time kernel
150s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
07/12/2022, 03:21
Static task
static1
Behavioral task
behavioral1
Sample
d4fc34a12fb7bb9523b9417760bdb1475529d970968ba302d7f9255eacd6d1f4.exe
Resource
win7-20221111-en
windows7-x64
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
d4fc34a12fb7bb9523b9417760bdb1475529d970968ba302d7f9255eacd6d1f4.exe
Resource
win10v2004-20220812-en
windows10-2004-x64
10 signatures
150 seconds
General
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Target
d4fc34a12fb7bb9523b9417760bdb1475529d970968ba302d7f9255eacd6d1f4.exe
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Size
268KB
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MD5
fc45fa53e829f51ddf3e3faaa60d2755
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SHA1
5e148ce7dee7ba6be90bb18490fd8df9b404985c
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SHA256
d4fc34a12fb7bb9523b9417760bdb1475529d970968ba302d7f9255eacd6d1f4
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SHA512
9b45746bbbe24d023cb60d854621fb6552d4705eba39d579c9c3a46370dabc6c274c896c653a1f9184376aeb109af582397dbaad2ccebadc1230dd1793541ab1
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SSDEEP
3072:lwzaPbxlh0xpuneIl6BjNlgnCW5tweOmJViklsKsJ5lB0e5/NhYrx5X7rZ6IA17i:lw8AI8anCWcilu5lB08PY7X7rZ6ti
Score
10/10
Malware Config
Signatures
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Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" d4fc34a12fb7bb9523b9417760bdb1475529d970968ba302d7f9255eacd6d1f4.exe Set value (int) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowSuperHidden = "0" bimoj.exe -
Executes dropped EXE 1 IoCs
pid Process 4204 bimoj.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-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation d4fc34a12fb7bb9523b9417760bdb1475529d970968ba302d7f9255eacd6d1f4.exe -
Adds Run key to start application 2 TTPs 29 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bimoj = "C:\\Users\\Admin\\bimoj.exe /r" bimoj.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bimoj = "C:\\Users\\Admin\\bimoj.exe /b" bimoj.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bimoj = "C:\\Users\\Admin\\bimoj.exe /o" bimoj.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bimoj = "C:\\Users\\Admin\\bimoj.exe /f" bimoj.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bimoj = "C:\\Users\\Admin\\bimoj.exe /m" bimoj.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bimoj = "C:\\Users\\Admin\\bimoj.exe /e" bimoj.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bimoj = "C:\\Users\\Admin\\bimoj.exe /s" bimoj.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bimoj = "C:\\Users\\Admin\\bimoj.exe /z" bimoj.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bimoj = "C:\\Users\\Admin\\bimoj.exe /a" bimoj.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bimoj = "C:\\Users\\Admin\\bimoj.exe /n" bimoj.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bimoj = "C:\\Users\\Admin\\bimoj.exe /h" bimoj.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bimoj = "C:\\Users\\Admin\\bimoj.exe /k" bimoj.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bimoj = "C:\\Users\\Admin\\bimoj.exe /d" bimoj.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bimoj = "C:\\Users\\Admin\\bimoj.exe /g" bimoj.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bimoj = "C:\\Users\\Admin\\bimoj.exe /y" bimoj.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bimoj = "C:\\Users\\Admin\\bimoj.exe /w" bimoj.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bimoj = "C:\\Users\\Admin\\bimoj.exe /p" bimoj.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bimoj = "C:\\Users\\Admin\\bimoj.exe /q" bimoj.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bimoj = "C:\\Users\\Admin\\bimoj.exe /j" d4fc34a12fb7bb9523b9417760bdb1475529d970968ba302d7f9255eacd6d1f4.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bimoj = "C:\\Users\\Admin\\bimoj.exe /j" bimoj.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bimoj = "C:\\Users\\Admin\\bimoj.exe /v" bimoj.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ d4fc34a12fb7bb9523b9417760bdb1475529d970968ba302d7f9255eacd6d1f4.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bimoj = "C:\\Users\\Admin\\bimoj.exe /i" bimoj.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bimoj = "C:\\Users\\Admin\\bimoj.exe /x" bimoj.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bimoj = "C:\\Users\\Admin\\bimoj.exe /c" bimoj.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bimoj = "C:\\Users\\Admin\\bimoj.exe /t" bimoj.exe Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\Run\ bimoj.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bimoj = "C:\\Users\\Admin\\bimoj.exe /l" bimoj.exe Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\bimoj = "C:\\Users\\Admin\\bimoj.exe /u" bimoj.exe -
Maps connected drives based on registry 3 TTPs 4 IoCs
Disk information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum d4fc34a12fb7bb9523b9417760bdb1475529d970968ba302d7f9255eacd6d1f4.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 d4fc34a12fb7bb9523b9417760bdb1475529d970968ba302d7f9255eacd6d1f4.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum bimoj.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0 bimoj.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings d4fc34a12fb7bb9523b9417760bdb1475529d970968ba302d7f9255eacd6d1f4.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2484 d4fc34a12fb7bb9523b9417760bdb1475529d970968ba302d7f9255eacd6d1f4.exe 2484 d4fc34a12fb7bb9523b9417760bdb1475529d970968ba302d7f9255eacd6d1f4.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe 4204 bimoj.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 2484 d4fc34a12fb7bb9523b9417760bdb1475529d970968ba302d7f9255eacd6d1f4.exe 4204 bimoj.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2484 wrote to memory of 4204 2484 d4fc34a12fb7bb9523b9417760bdb1475529d970968ba302d7f9255eacd6d1f4.exe 81 PID 2484 wrote to memory of 4204 2484 d4fc34a12fb7bb9523b9417760bdb1475529d970968ba302d7f9255eacd6d1f4.exe 81 PID 2484 wrote to memory of 4204 2484 d4fc34a12fb7bb9523b9417760bdb1475529d970968ba302d7f9255eacd6d1f4.exe 81
Processes
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C:\Users\Admin\AppData\Local\Temp\d4fc34a12fb7bb9523b9417760bdb1475529d970968ba302d7f9255eacd6d1f4.exe"C:\Users\Admin\AppData\Local\Temp\d4fc34a12fb7bb9523b9417760bdb1475529d970968ba302d7f9255eacd6d1f4.exe"1⤵
- Modifies visiblity of hidden/system files in Explorer
- Checks computer location settings
- Adds Run key to start application
- Maps connected drives based on registry
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2484 -
C:\Users\Admin\bimoj.exe"C:\Users\Admin\bimoj.exe"2⤵
- Modifies visiblity of hidden/system files in Explorer
- Executes dropped EXE
- Adds Run key to start application
- Maps connected drives based on registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
PID:4204
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C:\Windows\System32\rundll32.exeC:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding1⤵PID:4492
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
268KB
MD5fc45fa53e829f51ddf3e3faaa60d2755
SHA15e148ce7dee7ba6be90bb18490fd8df9b404985c
SHA256d4fc34a12fb7bb9523b9417760bdb1475529d970968ba302d7f9255eacd6d1f4
SHA5129b45746bbbe24d023cb60d854621fb6552d4705eba39d579c9c3a46370dabc6c274c896c653a1f9184376aeb109af582397dbaad2ccebadc1230dd1793541ab1
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Filesize
268KB
MD5fc45fa53e829f51ddf3e3faaa60d2755
SHA15e148ce7dee7ba6be90bb18490fd8df9b404985c
SHA256d4fc34a12fb7bb9523b9417760bdb1475529d970968ba302d7f9255eacd6d1f4
SHA5129b45746bbbe24d023cb60d854621fb6552d4705eba39d579c9c3a46370dabc6c274c896c653a1f9184376aeb109af582397dbaad2ccebadc1230dd1793541ab1