Resubmissions
10-03-2021 22:41
210310-c4hgxpl6m6 1010-03-2021 22:03
210310-atmrjjrp5x 1022-02-2021 18:34
210222-mfkm1zpavj 10Analysis
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max time kernel
17s -
max time network
16s -
platform
windows7_x64 -
resource
win7v20201028 -
submitted
22-02-2021 18:34
Static task
static1
Behavioral task
behavioral1
Sample
391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe
Resource
win7v20201028
Behavioral task
behavioral2
Sample
391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe
Resource
win10v20201028
General
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Target
391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe
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Size
75KB
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MD5
98b04a1cfdf18674315ec137733553a7
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SHA1
dd1cdb8782b5e08695b006393d1e8ab4e447556e
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SHA256
391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e
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SHA512
3c5d9884a922b4b974c3dbd0e6f73292b7bfa761a1e50cfb1af07752261cf1a8ea2520a13f28f7040d788bff3837c62c7a6595f03b1c1be5f8d4ea9848f09cb5
Malware Config
Extracted
C:\How To Restore Your Files.txt
http://gtmx56k4hutn3ikv.onion/blog/ff6b763849c49971c7ef8508064a3d8681529c7f45e532ff9e3d9ec13165263b/
http://gtmx56k4hutn3ikv.onion/
http://babukq4e2p4wu4iq.onion/login.php?id=l6Kr29xLbfnq1f0jzES55LLmmrZPd8
Signatures
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Enumerates connected drives 3 TTPs 24 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exedescription ioc process File opened (read-only) \??\A: 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe File opened (read-only) \??\S: 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe File opened (read-only) \??\F: 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe File opened (read-only) \??\Z: 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe File opened (read-only) \??\V: 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe File opened (read-only) \??\R: 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe File opened (read-only) \??\Y: 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe File opened (read-only) \??\I: 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe File opened (read-only) \??\B: 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe File opened (read-only) \??\K: 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe File opened (read-only) \??\Q: 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe File opened (read-only) \??\O: 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe File opened (read-only) \??\G: 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe File opened (read-only) \??\P: 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe File opened (read-only) \??\J: 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe File opened (read-only) \??\L: 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe File opened (read-only) \??\X: 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe File opened (read-only) \??\W: 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe File opened (read-only) \??\E: 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe File opened (read-only) \??\T: 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe File opened (read-only) \??\M: 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe File opened (read-only) \??\U: 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe File opened (read-only) \??\H: 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe File opened (read-only) \??\N: 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.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 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
Processes:
vssadmin.exevssadmin.exepid process 1776 vssadmin.exe 1096 vssadmin.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exepid process 1932 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
vssvc.exedescription pid process Token: SeBackupPrivilege 1704 vssvc.exe Token: SeRestorePrivilege 1704 vssvc.exe Token: SeAuditPrivilege 1704 vssvc.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.execmd.execmd.exedescription pid process target process PID 1932 wrote to memory of 1444 1932 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe cmd.exe PID 1932 wrote to memory of 1444 1932 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe cmd.exe PID 1932 wrote to memory of 1444 1932 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe cmd.exe PID 1932 wrote to memory of 1444 1932 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe cmd.exe PID 1444 wrote to memory of 1776 1444 cmd.exe vssadmin.exe PID 1444 wrote to memory of 1776 1444 cmd.exe vssadmin.exe PID 1444 wrote to memory of 1776 1444 cmd.exe vssadmin.exe PID 1932 wrote to memory of 1108 1932 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe cmd.exe PID 1932 wrote to memory of 1108 1932 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe cmd.exe PID 1932 wrote to memory of 1108 1932 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe cmd.exe PID 1932 wrote to memory of 1108 1932 391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe cmd.exe PID 1108 wrote to memory of 1096 1108 cmd.exe vssadmin.exe PID 1108 wrote to memory of 1096 1108 cmd.exe vssadmin.exe PID 1108 wrote to memory of 1096 1108 cmd.exe vssadmin.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe"C:\Users\Admin\AppData\Local\Temp\391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe"1⤵
- Enumerates connected drives
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1932 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet2⤵
- Suspicious use of WriteProcessMemory
PID:1444 -
C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:1776
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet2⤵
- Suspicious use of WriteProcessMemory
PID:1108 -
C:\Windows\system32\vssadmin.exevssadmin.exe delete shadows /all /quiet3⤵
- Interacts with shadow copies
PID:1096
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1704