Analysis
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max time kernel
138s -
max time network
149s -
platform
windows10-2004_x64 -
resource
win10v2004-20231023-en -
resource tags
arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system -
submitted
19/11/2023, 22:26
Static task
static1
Behavioral task
behavioral1
Sample
21c38ebbea03aa2ddce570a40ebcbf10217b80b9dde4924ce7119fb13d260edb.exe
Resource
win7-20231020-en
Behavioral task
behavioral2
Sample
21c38ebbea03aa2ddce570a40ebcbf10217b80b9dde4924ce7119fb13d260edb.exe
Resource
win10v2004-20231023-en
General
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Target
21c38ebbea03aa2ddce570a40ebcbf10217b80b9dde4924ce7119fb13d260edb.exe
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Size
329KB
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MD5
c5acf32a68fc55104b5dafc61245bab4
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SHA1
8a1d49efbb20a987cd87d227c4c4016a36c76afb
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SHA256
21c38ebbea03aa2ddce570a40ebcbf10217b80b9dde4924ce7119fb13d260edb
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SHA512
8bc262803139c0420b71ffea63e772124446349d913bb194646c22f0d4dca0cd04d3a3108032c2f31618f482e86fbfa0aa4de63d7c53fcd03dcc438763970808
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SSDEEP
3072:y9xdm7sMhs6Y28qryW6A4bdZc4nJcJW+XkmwVWf4rEVjSHwZROr4bpLkC:yIths6Y28ehy5nJcU6QrEVjWlr4a
Malware Config
Extracted
tofsee
vanaheim.cn
jotunheim.name
Signatures
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Creates new service(s) 1 TTPs
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Modifies Windows Firewall 1 TTPs 1 IoCs
pid Process 3552 netsh.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-1-5-21-2231940048-779848787-2990559741-1000\Control Panel\International\Geo\Nation 21c38ebbea03aa2ddce570a40ebcbf10217b80b9dde4924ce7119fb13d260edb.exe -
Executes dropped EXE 1 IoCs
pid Process 4956 ragrpew.exe -
Launches sc.exe 3 IoCs
Sc.exe is a Windows utlilty to control services on the system.
pid Process 856 sc.exe 4040 sc.exe 2100 sc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
pid pid_target Process procid_target 3760 1792 WerFault.exe 82 -
Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 1792 wrote to memory of 1992 1792 21c38ebbea03aa2ddce570a40ebcbf10217b80b9dde4924ce7119fb13d260edb.exe 104 PID 1792 wrote to memory of 1992 1792 21c38ebbea03aa2ddce570a40ebcbf10217b80b9dde4924ce7119fb13d260edb.exe 104 PID 1792 wrote to memory of 1992 1792 21c38ebbea03aa2ddce570a40ebcbf10217b80b9dde4924ce7119fb13d260edb.exe 104 PID 1792 wrote to memory of 1452 1792 21c38ebbea03aa2ddce570a40ebcbf10217b80b9dde4924ce7119fb13d260edb.exe 106 PID 1792 wrote to memory of 1452 1792 21c38ebbea03aa2ddce570a40ebcbf10217b80b9dde4924ce7119fb13d260edb.exe 106 PID 1792 wrote to memory of 1452 1792 21c38ebbea03aa2ddce570a40ebcbf10217b80b9dde4924ce7119fb13d260edb.exe 106 PID 1792 wrote to memory of 2100 1792 21c38ebbea03aa2ddce570a40ebcbf10217b80b9dde4924ce7119fb13d260edb.exe 108 PID 1792 wrote to memory of 2100 1792 21c38ebbea03aa2ddce570a40ebcbf10217b80b9dde4924ce7119fb13d260edb.exe 108 PID 1792 wrote to memory of 2100 1792 21c38ebbea03aa2ddce570a40ebcbf10217b80b9dde4924ce7119fb13d260edb.exe 108 PID 1792 wrote to memory of 856 1792 21c38ebbea03aa2ddce570a40ebcbf10217b80b9dde4924ce7119fb13d260edb.exe 110 PID 1792 wrote to memory of 856 1792 21c38ebbea03aa2ddce570a40ebcbf10217b80b9dde4924ce7119fb13d260edb.exe 110 PID 1792 wrote to memory of 856 1792 21c38ebbea03aa2ddce570a40ebcbf10217b80b9dde4924ce7119fb13d260edb.exe 110 PID 1792 wrote to memory of 4040 1792 21c38ebbea03aa2ddce570a40ebcbf10217b80b9dde4924ce7119fb13d260edb.exe 112 PID 1792 wrote to memory of 4040 1792 21c38ebbea03aa2ddce570a40ebcbf10217b80b9dde4924ce7119fb13d260edb.exe 112 PID 1792 wrote to memory of 4040 1792 21c38ebbea03aa2ddce570a40ebcbf10217b80b9dde4924ce7119fb13d260edb.exe 112 PID 1792 wrote to memory of 3552 1792 21c38ebbea03aa2ddce570a40ebcbf10217b80b9dde4924ce7119fb13d260edb.exe 114 PID 1792 wrote to memory of 3552 1792 21c38ebbea03aa2ddce570a40ebcbf10217b80b9dde4924ce7119fb13d260edb.exe 114 PID 1792 wrote to memory of 3552 1792 21c38ebbea03aa2ddce570a40ebcbf10217b80b9dde4924ce7119fb13d260edb.exe 114
Processes
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C:\Users\Admin\AppData\Local\Temp\21c38ebbea03aa2ddce570a40ebcbf10217b80b9dde4924ce7119fb13d260edb.exe"C:\Users\Admin\AppData\Local\Temp\21c38ebbea03aa2ddce570a40ebcbf10217b80b9dde4924ce7119fb13d260edb.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1792 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C mkdir C:\Windows\SysWOW64\hgbsvvy\2⤵PID:1992
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C move /Y "C:\Users\Admin\AppData\Local\Temp\ragrpew.exe" C:\Windows\SysWOW64\hgbsvvy\2⤵PID:1452
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" create hgbsvvy binPath= "C:\Windows\SysWOW64\hgbsvvy\ragrpew.exe /d\"C:\Users\Admin\AppData\Local\Temp\21c38ebbea03aa2ddce570a40ebcbf10217b80b9dde4924ce7119fb13d260edb.exe\"" type= own start= auto DisplayName= "wifi support"2⤵
- Launches sc.exe
PID:2100
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" description hgbsvvy "wifi internet conection"2⤵
- Launches sc.exe
PID:856
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C:\Windows\SysWOW64\sc.exe"C:\Windows\System32\sc.exe" start hgbsvvy2⤵
- Launches sc.exe
PID:4040
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C:\Windows\SysWOW64\netsh.exe"C:\Windows\System32\netsh.exe" advfirewall firewall add rule name="Host-process for services of Windows" dir=in action=allow program="C:\Windows\SysWOW64\svchost.exe" enable=yes>nul2⤵
- Modifies Windows Firewall
PID:3552
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1792 -s 5802⤵
- Program crash
PID:3760
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C:\Windows\SysWOW64\hgbsvvy\ragrpew.exeC:\Windows\SysWOW64\hgbsvvy\ragrpew.exe /d"C:\Users\Admin\AppData\Local\Temp\21c38ebbea03aa2ddce570a40ebcbf10217b80b9dde4924ce7119fb13d260edb.exe"1⤵
- Executes dropped EXE
PID:4956
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1792 -ip 17921⤵PID:4928
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
11.7MB
MD5a4a7be2f76bf63ff67c436aaae269c96
SHA1e1e3d6b653c3adf592549d30d09296d345a03eb3
SHA256c2c70c4a076ef8130684ac24baab19ebbbacbd8ce8ee1ec91553967d1cd642f3
SHA512cd4fcb53f9c454e16604b16738044d48bebce48b52f27b06b064d1b1e67d3cabc31b57d688750bcbe14833f1ef29c4e1e868c6fb845ba18257b8a320a93620db
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Filesize
11.7MB
MD5a4a7be2f76bf63ff67c436aaae269c96
SHA1e1e3d6b653c3adf592549d30d09296d345a03eb3
SHA256c2c70c4a076ef8130684ac24baab19ebbbacbd8ce8ee1ec91553967d1cd642f3
SHA512cd4fcb53f9c454e16604b16738044d48bebce48b52f27b06b064d1b1e67d3cabc31b57d688750bcbe14833f1ef29c4e1e868c6fb845ba18257b8a320a93620db