Resubmissions
09/12/2022, 19:46
221209-ygxwxsea85906/12/2022, 22:31
221206-2fvxqadb5v906/12/2022, 22:22
221206-2abxnace4t9Analysis
- max time kernel
119s - max time network
125s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system - submitted
06/12/2022, 22:31
Static task
static1
General
- Target 63280649d4a12229157f421ee6ba5fdcc4a9217343f1b5edb43aa87efaa94e90.exe
- Size 891KB
- Sample221206-2fvxqadb5v
- SHA256 63280649d4a12229157f421ee6ba5fdcc4a9217343f1b5edb43aa87efaa94e90
- MD5 cc101b016deadd7d54994e282e89a2ec
- SHA1 c0f8324e2ab8d197e897d8c20cb27359dc92ac8a
- SHA512 1584cc57ced08d8673af119c256df8a9e9430b546c768bd7965c9d481a73d14d2acca9c72446c54e777aff995f849e1ee210c2bfe92098763a381f2105687f3a
- SSDEEP 12288:NoCNfsZC/u4aOXa+ZQYJpnFCmkSN0/F1:NoCFsiZqeJr4F
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Detectes Phoenix Miner Payload 3 IoCs
resource yara_rule behavioral1/memory/2552-155-0x0000000140000000-0x000000014082B000-memory.dmp miner_phoenix behavioral1/memory/2552-156-0x0000000140000000-0x000000014082B000-memory.dmp miner_phoenix behavioral1/memory/2552-157-0x0000000140000000-0x000000014082B000-memory.dmp miner_phoenix - Executes dropped EXE 1 IoCs
pid Process 5088 OZWS.exe -
resource yara_rule behavioral1/memory/2552-151-0x0000000140000000-0x000000014082B000-memory.dmp upx behavioral1/memory/2552-153-0x0000000140000000-0x000000014082B000-memory.dmp upx behavioral1/memory/2552-154-0x0000000140000000-0x000000014082B000-memory.dmp upx behavioral1/memory/2552-155-0x0000000140000000-0x000000014082B000-memory.dmp upx behavioral1/memory/2552-156-0x0000000140000000-0x000000014082B000-memory.dmp upx behavioral1/memory/2552-157-0x0000000140000000-0x000000014082B000-memory.dmp upx - 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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation OZWS.exe - Uses the VBS compiler for execution 1 TTPs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
pid Process 2552 RegSvcs.exe 2552 RegSvcs.exe - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 5088 set thread context of 3768 5088 OZWS.exe 93 PID 5088 set thread context of 2552 5088 OZWS.exe 98 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 1 IoCs
pid pid_target Process procid_target 1772 5088 WerFault.exe 85 - Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 1188 schtasks.exe - Delays execution with timeout.exe 1 IoCs
pid Process 4932 timeout.exe - Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 5088 OZWS.exe 5088 OZWS.exe - Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2112 63280649d4a12229157f421ee6ba5fdcc4a9217343f1b5edb43aa87efaa94e90.exe Token: SeDebugPrivilege 5088 OZWS.exe - Suspicious use of WriteProcessMemory 33 IoCs
description pid Process procid_target PID 2112 wrote to memory of 4804 2112 63280649d4a12229157f421ee6ba5fdcc4a9217343f1b5edb43aa87efaa94e90.exe 81 PID 2112 wrote to memory of 4804 2112 63280649d4a12229157f421ee6ba5fdcc4a9217343f1b5edb43aa87efaa94e90.exe 81 PID 4804 wrote to memory of 4932 4804 cmd.exe 84 PID 4804 wrote to memory of 4932 4804 cmd.exe 84 PID 4804 wrote to memory of 5088 4804 cmd.exe 85 PID 4804 wrote to memory of 5088 4804 cmd.exe 85 PID 5088 wrote to memory of 5068 5088 OZWS.exe 86 PID 5088 wrote to memory of 5068 5088 OZWS.exe 86 PID 5068 wrote to memory of 1188 5068 cmd.exe 88 PID 5068 wrote to memory of 1188 5068 cmd.exe 88 PID 5088 wrote to memory of 3768 5088 OZWS.exe 93 PID 5088 wrote to memory of 3768 5088 OZWS.exe 93 PID 5088 wrote to memory of 3768 5088 OZWS.exe 93 PID 5088 wrote to memory of 3768 5088 OZWS.exe 93 PID 5088 wrote to memory of 3768 5088 OZWS.exe 93 PID 5088 wrote to memory of 3768 5088 OZWS.exe 93 PID 5088 wrote to memory of 3768 5088 OZWS.exe 93 PID 5088 wrote to memory of 3768 5088 OZWS.exe 93 PID 5088 wrote to memory of 3768 5088 OZWS.exe 93 PID 5088 wrote to memory of 3768 5088 OZWS.exe 93 PID 5088 wrote to memory of 3768 5088 OZWS.exe 93 PID 5088 wrote to memory of 3768 5088 OZWS.exe 93 PID 5088 wrote to memory of 3768 5088 OZWS.exe 93 PID 5088 wrote to memory of 3768 5088 OZWS.exe 93 PID 3768 wrote to memory of 3468 3768 vbc.exe 94 PID 3768 wrote to memory of 3468 3768 vbc.exe 94 PID 5088 wrote to memory of 2552 5088 OZWS.exe 98 PID 5088 wrote to memory of 2552 5088 OZWS.exe 98 PID 5088 wrote to memory of 2552 5088 OZWS.exe 98 PID 5088 wrote to memory of 2552 5088 OZWS.exe 98 PID 5088 wrote to memory of 2552 5088 OZWS.exe 98 PID 5088 wrote to memory of 2552 5088 OZWS.exe 98 PID 5088 wrote to memory of 2552 5088 OZWS.exe 98
Processes
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C:\Users\Admin\AppData\Local\Temp\63280649d4a12229157f421ee6ba5fdcc4a9217343f1b5edb43aa87efaa94e90.exe"C:\Users\Admin\AppData\Local\Temp\63280649d4a12229157f421ee6ba5fdcc4a9217343f1b5edb43aa87efaa94e90.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2112 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8840.tmp.bat""2⤵
- Suspicious use of WriteProcessMemory
PID:4804 -
C:\Windows\system32\timeout.exetimeout 33⤵
- Delays execution with timeout.exe
PID:4932
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C:\ProgramData\root\OZWS.exe"C:\ProgramData\root\OZWS.exe"3⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5088 -
C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc MINUTE /mo 5 /RL HIGHEST /tn "OZWS" /tr "C:\ProgramData\root\OZWS.exe"4⤵
- Suspicious use of WriteProcessMemory
PID:5068 -
C:\Windows\system32\schtasks.exeschtasks /create /f /sc MINUTE /mo 5 /RL HIGHEST /tn "OZWS" /tr "C:\ProgramData\root\OZWS.exe"5⤵
- Creates scheduled task(s)
PID:1188
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe -pool ssl://eu1-etc.ethermine.org:5555 -wal 0x979e2ea1C1BCfd64418f80D32218e26951A5090d.Rig001 -coin etc -log 04⤵
- Suspicious use of WriteProcessMemory
PID:3768 -
C:\Windows\system32\cmd.exeC:\Windows\system32\cmd.exe /c cls5⤵PID:3468
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegSvcs.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\RegSvcs.exe -pool ssl://eu1-etc.ethermine.org:5555 -wal 0x979e2ea1C1BCfd64418f80D32218e26951A5090d.Rig001 -coin etc -log 04⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
PID:2552
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 5088 -s 23364⤵
- Program crash
PID:1772
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -pss -s 424 -p 5088 -ip 50881⤵PID:3460
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\ProgramData\root\OZWS.exe
- Size 891KB
- SHA256 63280649d4a12229157f421ee6ba5fdcc4a9217343f1b5edb43aa87efaa94e90
- MD5 cc101b016deadd7d54994e282e89a2ec
- SHA1 c0f8324e2ab8d197e897d8c20cb27359dc92ac8a
- SHA512 1584cc57ced08d8673af119c256df8a9e9430b546c768bd7965c9d481a73d14d2acca9c72446c54e777aff995f849e1ee210c2bfe92098763a381f2105687f3a
- SSDEEP 12288:NoCNfsZC/u4aOXa+ZQYJpnFCmkSN0/F1:NoCFsiZqeJr4F
- MD5 SHA1 SHA512 SSDEEP
- Path C:\ProgramData\root\OZWS.exe
- Size 891KB
- SHA256 63280649d4a12229157f421ee6ba5fdcc4a9217343f1b5edb43aa87efaa94e90
- MD5 cc101b016deadd7d54994e282e89a2ec
- SHA1 c0f8324e2ab8d197e897d8c20cb27359dc92ac8a
- SHA512 1584cc57ced08d8673af119c256df8a9e9430b546c768bd7965c9d481a73d14d2acca9c72446c54e777aff995f849e1ee210c2bfe92098763a381f2105687f3a
- SSDEEP 12288:NoCNfsZC/u4aOXa+ZQYJpnFCmkSN0/F1:NoCFsiZqeJr4F
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\tmp8840.tmp.bat
- Size 137B
- SHA256 c6b1454ebefc60ed29daf9f9ca94db7aa8044b31fd3518ffb28a792725705086
- MD5 5af6e10ba24772b867f9e8aaaf290283
- SHA1 5849ee194b74f8cbb99bfd503e34c2e14f2ecf0e
- SHA512 d99e864997285a70ab58433a522ec15a642b12071a7d514ed4d6fe0806adb5374a8e7ed842abc8b73c243d3cfe1e39a088a49e3abe99601ce1cd553e3db92b29
- MD5 SHA1 SHA512