Analysis
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max time kernel
148s -
max time network
188s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
24-11-2022 16:58
Static task
static1
Behavioral task
behavioral1
Sample
8ba41c7311481426b3858304c2ef122c3121123abcb9387c8b0bd300b1c5fe39.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
8ba41c7311481426b3858304c2ef122c3121123abcb9387c8b0bd300b1c5fe39.exe
Resource
win10v2004-20220812-en
General
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Target
8ba41c7311481426b3858304c2ef122c3121123abcb9387c8b0bd300b1c5fe39.exe
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Size
176KB
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MD5
eebfdbc8bf820a7751f02050b0f5cd16
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SHA1
721db8bf3778570d6cd18fb749030ce99704d094
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SHA256
8ba41c7311481426b3858304c2ef122c3121123abcb9387c8b0bd300b1c5fe39
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SHA512
aaa37c396de5e3bdc7ef2c5ce620646192349953f7fbf7dedcdb0f3d81c24b33a6ef05a5d501c08f58df86f1fd0356ee902fccd24da20c9c5ae90aa87c15cf3f
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SSDEEP
3072:tsGkrEM7aAMll8bqndiaxemXELx9HRkF/aZNJosLtFLFEKWP1Ih:+V7El8bIdia50TzNJoUHLCl
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
Processes:
Wbem.exepid process 4592 Wbem.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
8ba41c7311481426b3858304c2ef122c3121123abcb9387c8b0bd300b1c5fe39.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation 8ba41c7311481426b3858304c2ef122c3121123abcb9387c8b0bd300b1c5fe39.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
8ba41c7311481426b3858304c2ef122c3121123abcb9387c8b0bd300b1c5fe39.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update Service = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Wbem.exe\"" 8ba41c7311481426b3858304c2ef122c3121123abcb9387c8b0bd300b1c5fe39.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of WriteProcessMemory 2 IoCs
Processes:
8ba41c7311481426b3858304c2ef122c3121123abcb9387c8b0bd300b1c5fe39.exedescription pid process target process PID 1200 wrote to memory of 4592 1200 8ba41c7311481426b3858304c2ef122c3121123abcb9387c8b0bd300b1c5fe39.exe Wbem.exe PID 1200 wrote to memory of 4592 1200 8ba41c7311481426b3858304c2ef122c3121123abcb9387c8b0bd300b1c5fe39.exe Wbem.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\8ba41c7311481426b3858304c2ef122c3121123abcb9387c8b0bd300b1c5fe39.exe"C:\Users\Admin\AppData\Local\Temp\8ba41c7311481426b3858304c2ef122c3121123abcb9387c8b0bd300b1c5fe39.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Wbem.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Wbem.exe"2⤵
- Executes dropped EXE
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\win32host.sysFilesize
119B
MD52f7e28c750ae783bb237425e8f74b8e6
SHA162c06e064ec63b9a1e39423ac81db35d644f745a
SHA25636f630c077b16345ce8b77e049ad1d95163edf56792e5b9b7e6fa6b2c57abedf
SHA512b4f57dbcb3392f9bd1e4bd94ea36f9bc47388bf51bf9785033bc23ba7eab813d6a8e3e782bdd438626afff03d9d01f5eeaaff3486678d84e2d6787ada1582057
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Wbem.exeFilesize
176KB
MD5eebfdbc8bf820a7751f02050b0f5cd16
SHA1721db8bf3778570d6cd18fb749030ce99704d094
SHA2568ba41c7311481426b3858304c2ef122c3121123abcb9387c8b0bd300b1c5fe39
SHA512aaa37c396de5e3bdc7ef2c5ce620646192349953f7fbf7dedcdb0f3d81c24b33a6ef05a5d501c08f58df86f1fd0356ee902fccd24da20c9c5ae90aa87c15cf3f
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Wbem.exeFilesize
176KB
MD5eebfdbc8bf820a7751f02050b0f5cd16
SHA1721db8bf3778570d6cd18fb749030ce99704d094
SHA2568ba41c7311481426b3858304c2ef122c3121123abcb9387c8b0bd300b1c5fe39
SHA512aaa37c396de5e3bdc7ef2c5ce620646192349953f7fbf7dedcdb0f3d81c24b33a6ef05a5d501c08f58df86f1fd0356ee902fccd24da20c9c5ae90aa87c15cf3f
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memory/1200-132-0x00007FF8CACB0000-0x00007FF8CB6E6000-memory.dmpFilesize
10.2MB
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memory/4592-133-0x0000000000000000-mapping.dmp
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memory/4592-136-0x00007FF8CABF0000-0x00007FF8CB626000-memory.dmpFilesize
10.2MB