Analysis
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max time kernel
166s -
max time network
181s -
platform
windows10-2004_x64 -
resource
win10v2004-20221111-en -
resource tags
arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system -
submitted
28-11-2022 05:44
Static task
static1
Behavioral task
behavioral1
Sample
d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe
Resource
win10v2004-20221111-en
General
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Target
d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe
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Size
388KB
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MD5
56d9e668c269c3af0ef56c1449f4d07c
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SHA1
3c9d803e3f03f4390d05cc6d260986006684c725
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SHA256
d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e
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SHA512
132d3f2731879f94b601ff9bd65846bf54b0e0bf72830f6decbbb5a39962e15ba5efc728456183d0fc87562e1a0ff8b0153f48c0db785f18ea0092ead0dfb9cd
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SSDEEP
6144:d7pyQuvDj9rOcNeaqbAnIBYz+cGsMXKmwCEHL9Oh9nCMaCQn:dNyQA3nIgp/MXKmwCjFCSq
Malware Config
Signatures
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Executes dropped EXE 2 IoCs
Processes:
btbchdh.exebtbchdh.exepid process 1420 btbchdh.exe 4912 btbchdh.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exebtbchdh.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe Key value queried \REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation btbchdh.exe -
Adds Run key to start application 2 TTPs 4 IoCs
Processes:
btbchdh.exedescription ioc process Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\Run btbchdh.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\svv_e = "C:\\Users\\Admin\\AppData\\Roaming\\btbchdh.exe" btbchdh.exe Key created \REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce btbchdh.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\*svv_e = "C:\\Users\\Admin\\AppData\\Roaming\\btbchdh.exe" btbchdh.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 44 ipinfo.io -
Suspicious use of SetThreadContext 2 IoCs
Processes:
d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exebtbchdh.exedescription pid process target process PID 2132 set thread context of 1244 2132 d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe PID 1420 set thread context of 4912 1420 btbchdh.exe btbchdh.exe -
Drops file in Program Files directory 64 IoCs
Processes:
btbchdh.exedescription ioc process File opened for modification C:\Program Files\7-Zip\Lang\ps.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\ka.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\ky.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\lv.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\nb.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\ba.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\bn.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\ko.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\lij.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\lt.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\th.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\zh-tw.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\readme.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\fi.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\fr.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\kk.txt btbchdh.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ClickToRun\ClientCapabilities.json btbchdh.exe File opened for modification C:\Program Files\Google\Chrome\Application\89.0.4389.114\Extensions\external_extensions.json btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\kab.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\mng2.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\mr.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\nl.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\sa.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\de.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\eu.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\hy.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\tt.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\yo.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\License.txt btbchdh.exe File opened for modification C:\Program Files\CheckpointApprove.7z btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\hi.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\ku-ckb.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\ug.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\si.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\tr.txt btbchdh.exe File opened for modification C:\Program Files\EnableRegister.odt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\br.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\ms.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\pt.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\ext.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\ku.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\sq.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\sr-spc.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\gu.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\io.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\ro.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\hu.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\eo.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\ga.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\hr.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\nn.txt btbchdh.exe File opened for modification C:\Program Files\Common Files\microsoft shared\ink\ThirdPartyNotices.MSHWLatin.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\az.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\cs.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\cy.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\sr-spl.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\ta.txt btbchdh.exe File opened for modification C:\Program Files\Google\Chrome\Application\89.0.4389.114\chrome_100_percent.pak btbchdh.exe File opened for modification C:\Program Files\7-Zip\History.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\af.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\sl.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\kaa.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\mng.txt btbchdh.exe File opened for modification C:\Program Files\7-Zip\Lang\pt-br.txt btbchdh.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Interacts with shadow copies 2 TTPs 1 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
Processes:
vssadmin.exepid process 4720 vssadmin.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
Processes:
d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exebtbchdh.exebtbchdh.exepid process 2132 d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe 2132 d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe 2132 d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe 2132 d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe 1420 btbchdh.exe 1420 btbchdh.exe 1420 btbchdh.exe 1420 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe 4912 btbchdh.exe -
Suspicious use of AdjustPrivilegeToken 5 IoCs
Processes:
d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exebtbchdh.exevssvc.exedescription pid process Token: SeDebugPrivilege 1244 d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe Token: SeDebugPrivilege 4912 btbchdh.exe Token: SeBackupPrivilege 1916 vssvc.exe Token: SeRestorePrivilege 1916 vssvc.exe Token: SeAuditPrivilege 1916 vssvc.exe -
Suspicious use of SetWindowsHookEx 4 IoCs
Processes:
d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exebtbchdh.exepid process 2132 d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe 2132 d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe 1420 btbchdh.exe 1420 btbchdh.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exed114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exebtbchdh.exebtbchdh.exedescription pid process target process PID 2132 wrote to memory of 1244 2132 d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe PID 2132 wrote to memory of 1244 2132 d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe PID 2132 wrote to memory of 1244 2132 d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe PID 2132 wrote to memory of 1244 2132 d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe PID 2132 wrote to memory of 1244 2132 d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe PID 2132 wrote to memory of 1244 2132 d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe PID 2132 wrote to memory of 1244 2132 d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe PID 2132 wrote to memory of 1244 2132 d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe PID 2132 wrote to memory of 1244 2132 d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe PID 1244 wrote to memory of 1420 1244 d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe btbchdh.exe PID 1244 wrote to memory of 1420 1244 d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe btbchdh.exe PID 1244 wrote to memory of 1420 1244 d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe btbchdh.exe PID 1420 wrote to memory of 4912 1420 btbchdh.exe btbchdh.exe PID 1420 wrote to memory of 4912 1420 btbchdh.exe btbchdh.exe PID 1420 wrote to memory of 4912 1420 btbchdh.exe btbchdh.exe PID 1420 wrote to memory of 4912 1420 btbchdh.exe btbchdh.exe PID 1420 wrote to memory of 4912 1420 btbchdh.exe btbchdh.exe PID 1420 wrote to memory of 4912 1420 btbchdh.exe btbchdh.exe PID 1420 wrote to memory of 4912 1420 btbchdh.exe btbchdh.exe PID 1420 wrote to memory of 4912 1420 btbchdh.exe btbchdh.exe PID 1420 wrote to memory of 4912 1420 btbchdh.exe btbchdh.exe PID 1244 wrote to memory of 344 1244 d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe cmd.exe PID 1244 wrote to memory of 344 1244 d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe cmd.exe PID 1244 wrote to memory of 344 1244 d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe cmd.exe PID 4912 wrote to memory of 4720 4912 btbchdh.exe vssadmin.exe PID 4912 wrote to memory of 4720 4912 btbchdh.exe vssadmin.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe"C:\Users\Admin\AppData\Local\Temp\d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exeC:\Users\Admin\AppData\Local\Temp\d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e.exe2⤵
- Checks computer location settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\btbchdh.exeC:\Users\Admin\AppData\Roaming\btbchdh.exe3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\btbchdh.exeC:\Users\Admin\AppData\Roaming\btbchdh.exe4⤵
- Executes dropped EXE
- Checks computer location settings
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\vssadmin.exe"C:\Windows\System32\vssadmin.exe" delete shadows /all /Quiet5⤵
- Interacts with shadow copies
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\D11447~1.EXE >> NUL3⤵
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Roaming\btbchdh.exeFilesize
388KB
MD556d9e668c269c3af0ef56c1449f4d07c
SHA13c9d803e3f03f4390d05cc6d260986006684c725
SHA256d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e
SHA512132d3f2731879f94b601ff9bd65846bf54b0e0bf72830f6decbbb5a39962e15ba5efc728456183d0fc87562e1a0ff8b0153f48c0db785f18ea0092ead0dfb9cd
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C:\Users\Admin\AppData\Roaming\btbchdh.exeFilesize
388KB
MD556d9e668c269c3af0ef56c1449f4d07c
SHA13c9d803e3f03f4390d05cc6d260986006684c725
SHA256d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e
SHA512132d3f2731879f94b601ff9bd65846bf54b0e0bf72830f6decbbb5a39962e15ba5efc728456183d0fc87562e1a0ff8b0153f48c0db785f18ea0092ead0dfb9cd
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C:\Users\Admin\AppData\Roaming\btbchdh.exeFilesize
388KB
MD556d9e668c269c3af0ef56c1449f4d07c
SHA13c9d803e3f03f4390d05cc6d260986006684c725
SHA256d114473c66431d2776572bb1245e83d6602f71e980ff1084d6827300c47f4a9e
SHA512132d3f2731879f94b601ff9bd65846bf54b0e0bf72830f6decbbb5a39962e15ba5efc728456183d0fc87562e1a0ff8b0153f48c0db785f18ea0092ead0dfb9cd
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memory/344-149-0x0000000000000000-mapping.dmp
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memory/1244-135-0x0000000000400000-0x0000000001400000-memory.dmpFilesize
16.0MB
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memory/1244-137-0x0000000000400000-0x0000000000467000-memory.dmpFilesize
412KB
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memory/1244-138-0x0000000074DD0000-0x0000000074E09000-memory.dmpFilesize
228KB
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memory/1244-136-0x0000000000400000-0x0000000001400000-memory.dmpFilesize
16.0MB
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memory/1244-132-0x0000000000000000-mapping.dmp
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memory/1244-133-0x0000000000400000-0x0000000001400000-memory.dmpFilesize
16.0MB
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memory/1244-151-0x0000000074DD0000-0x0000000074E09000-memory.dmpFilesize
228KB
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memory/1244-150-0x0000000000400000-0x0000000000467000-memory.dmpFilesize
412KB
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memory/1420-139-0x0000000000000000-mapping.dmp
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memory/2132-134-0x0000000000B00000-0x0000000000B04000-memory.dmpFilesize
16KB
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memory/4720-153-0x0000000000000000-mapping.dmp
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memory/4912-142-0x0000000000000000-mapping.dmp
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memory/4912-148-0x0000000074DD0000-0x0000000074E09000-memory.dmpFilesize
228KB
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memory/4912-147-0x0000000000400000-0x0000000000467000-memory.dmpFilesize
412KB
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memory/4912-146-0x0000000000400000-0x0000000001400000-memory.dmpFilesize
16.0MB
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memory/4912-152-0x0000000000400000-0x0000000000467000-memory.dmpFilesize
412KB
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memory/4912-145-0x0000000000400000-0x0000000001400000-memory.dmpFilesize
16.0MB