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Analysis
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max time kernel
128s -
max time network
129s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
14/12/2024, 01:02
Behavioral task
behavioral1
Sample
790c0d272971a137154f73bb6cb829ac88a9fa9dceaee1e656392dc8bc1e0c32.exe
Resource
win7-20241010-en
General
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Target
790c0d272971a137154f73bb6cb829ac88a9fa9dceaee1e656392dc8bc1e0c32.exe
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Size
3.0MB
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MD5
a5c760e458503463ed3902bdbf605e4e
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SHA1
2fb83c914783070267e42dbad89fd2c7afc9d9af
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SHA256
790c0d272971a137154f73bb6cb829ac88a9fa9dceaee1e656392dc8bc1e0c32
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SHA512
5b905facc4db2afb1dec0460b965c705c2566d91e2db7a95bc23cbd7dc8cbdb9414d4b4a6306e7a57d5ff4eb658910f12497608d5442cc5d8c740dc5be446b5b
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SSDEEP
49152:XP7p1EZKMnkmWg8LX5prviYDyKS5AypQxbRQAo9JnCmpiu/nRFfjI7L0qb:XPHTPJg8z1mKnypSbRxo9JCm
Malware Config
Extracted
orcus
Mamont
31.44.184.52:38135
sudo_hukjod904skbxj09l4njrec7guj3gu0r
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autostart_method
Disable
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enable_keylogger
false
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install_path
C:\ProgramData\$77RegAsm.exe
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reconnect_delay
10000
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registry_keyname
Sudik
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taskscheduler_taskname
sudik
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watchdog_path
AppData\aga.exe
Signatures
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Orcus family
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Orcus main payload 1 IoCs
resource yara_rule behavioral1/files/0x000a00000001202c-10.dat family_orcus -
Orcurs Rat Executable 9 IoCs
resource yara_rule behavioral1/memory/2716-1-0x00000000011F0000-0x00000000014EE000-memory.dmp orcus behavioral1/files/0x000a00000001202c-10.dat orcus behavioral1/memory/2844-17-0x0000000000C20000-0x0000000000F1E000-memory.dmp orcus behavioral1/memory/2628-32-0x0000000000400000-0x00000000006FE000-memory.dmp orcus behavioral1/memory/2628-31-0x0000000000400000-0x00000000006FE000-memory.dmp orcus behavioral1/memory/2628-28-0x0000000000400000-0x00000000006FE000-memory.dmp orcus behavioral1/memory/2628-26-0x0000000000400000-0x00000000006FE000-memory.dmp orcus behavioral1/memory/2628-33-0x0000000000400000-0x00000000006FE000-memory.dmp orcus behavioral1/memory/908-69-0x0000000000210000-0x000000000050E000-memory.dmp orcus -
Executes dropped EXE 4 IoCs
pid Process 2844 $77RegAsm.exe 1128 $77RegAsm.exe 2432 $77RegAsm.exe 908 $77RegAsm.exe -
Loads dropped DLL 1 IoCs
pid Process 2716 790c0d272971a137154f73bb6cb829ac88a9fa9dceaee1e656392dc8bc1e0c32.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2844 set thread context of 2628 2844 $77RegAsm.exe 32 PID 1128 set thread context of 600 1128 $77RegAsm.exe 34 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 7 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language $77RegAsm.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language installutil.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language caspol.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language $77RegAsm.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language $77RegAsm.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 790c0d272971a137154f73bb6cb829ac88a9fa9dceaee1e656392dc8bc1e0c32.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language $77RegAsm.exe -
Suspicious behavior: EnumeratesProcesses 7 IoCs
pid Process 2716 790c0d272971a137154f73bb6cb829ac88a9fa9dceaee1e656392dc8bc1e0c32.exe 2844 $77RegAsm.exe 2844 $77RegAsm.exe 1128 $77RegAsm.exe 1128 $77RegAsm.exe 2628 installutil.exe 2628 installutil.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2716 790c0d272971a137154f73bb6cb829ac88a9fa9dceaee1e656392dc8bc1e0c32.exe Token: SeDebugPrivilege 2844 $77RegAsm.exe Token: SeDebugPrivilege 1128 $77RegAsm.exe Token: SeDebugPrivilege 2628 installutil.exe -
Suspicious use of WriteProcessMemory 37 IoCs
description pid Process procid_target PID 2716 wrote to memory of 2844 2716 790c0d272971a137154f73bb6cb829ac88a9fa9dceaee1e656392dc8bc1e0c32.exe 30 PID 2716 wrote to memory of 2844 2716 790c0d272971a137154f73bb6cb829ac88a9fa9dceaee1e656392dc8bc1e0c32.exe 30 PID 2716 wrote to memory of 2844 2716 790c0d272971a137154f73bb6cb829ac88a9fa9dceaee1e656392dc8bc1e0c32.exe 30 PID 2716 wrote to memory of 2844 2716 790c0d272971a137154f73bb6cb829ac88a9fa9dceaee1e656392dc8bc1e0c32.exe 30 PID 2612 wrote to memory of 1128 2612 taskeng.exe 33 PID 2612 wrote to memory of 1128 2612 taskeng.exe 33 PID 2612 wrote to memory of 1128 2612 taskeng.exe 33 PID 2612 wrote to memory of 1128 2612 taskeng.exe 33 PID 2844 wrote to memory of 2628 2844 $77RegAsm.exe 32 PID 2844 wrote to memory of 2628 2844 $77RegAsm.exe 32 PID 2844 wrote to memory of 2628 2844 $77RegAsm.exe 32 PID 2844 wrote to memory of 2628 2844 $77RegAsm.exe 32 PID 2844 wrote to memory of 2628 2844 $77RegAsm.exe 32 PID 2844 wrote to memory of 2628 2844 $77RegAsm.exe 32 PID 2844 wrote to memory of 2628 2844 $77RegAsm.exe 32 PID 2844 wrote to memory of 2628 2844 $77RegAsm.exe 32 PID 2844 wrote to memory of 2628 2844 $77RegAsm.exe 32 PID 2844 wrote to memory of 2628 2844 $77RegAsm.exe 32 PID 2844 wrote to memory of 2628 2844 $77RegAsm.exe 32 PID 2844 wrote to memory of 2628 2844 $77RegAsm.exe 32 PID 1128 wrote to memory of 600 1128 $77RegAsm.exe 34 PID 1128 wrote to memory of 600 1128 $77RegAsm.exe 34 PID 1128 wrote to memory of 600 1128 $77RegAsm.exe 34 PID 1128 wrote to memory of 600 1128 $77RegAsm.exe 34 PID 1128 wrote to memory of 600 1128 $77RegAsm.exe 34 PID 1128 wrote to memory of 600 1128 $77RegAsm.exe 34 PID 1128 wrote to memory of 600 1128 $77RegAsm.exe 34 PID 1128 wrote to memory of 600 1128 $77RegAsm.exe 34 PID 1128 wrote to memory of 600 1128 $77RegAsm.exe 34 PID 2612 wrote to memory of 2432 2612 taskeng.exe 37 PID 2612 wrote to memory of 2432 2612 taskeng.exe 37 PID 2612 wrote to memory of 2432 2612 taskeng.exe 37 PID 2612 wrote to memory of 2432 2612 taskeng.exe 37 PID 2612 wrote to memory of 908 2612 taskeng.exe 38 PID 2612 wrote to memory of 908 2612 taskeng.exe 38 PID 2612 wrote to memory of 908 2612 taskeng.exe 38 PID 2612 wrote to memory of 908 2612 taskeng.exe 38
Processes
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C:\Users\Admin\AppData\Local\Temp\790c0d272971a137154f73bb6cb829ac88a9fa9dceaee1e656392dc8bc1e0c32.exe"C:\Users\Admin\AppData\Local\Temp\790c0d272971a137154f73bb6cb829ac88a9fa9dceaee1e656392dc8bc1e0c32.exe"1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2716 -
C:\ProgramData\$77RegAsm.exe"C:\ProgramData\$77RegAsm.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2844 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\installutil.exe"3⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2628
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C:\Windows\system32\taskeng.exetaskeng.exe {A1601603-D253-49C2-AEE1-839271F79074} S-1-5-21-2039016743-699959520-214465309-1000:PIDEURYY\Admin:Interactive:[1]1⤵
- Suspicious use of WriteProcessMemory
PID:2612 -
C:\ProgramData\$77RegAsm.exeC:\ProgramData\$77RegAsm.exe2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1128 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe"3⤵
- System Location Discovery: System Language Discovery
PID:600
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C:\ProgramData\$77RegAsm.exeC:\ProgramData\$77RegAsm.exe2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2432
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C:\ProgramData\$77RegAsm.exeC:\ProgramData\$77RegAsm.exe2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:908
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
357B
MD5a2b76cea3a59fa9af5ea21ff68139c98
SHA135d76475e6a54c168f536e30206578babff58274
SHA256f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839
SHA512b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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Filesize
3.0MB
MD5a5c760e458503463ed3902bdbf605e4e
SHA12fb83c914783070267e42dbad89fd2c7afc9d9af
SHA256790c0d272971a137154f73bb6cb829ac88a9fa9dceaee1e656392dc8bc1e0c32
SHA5125b905facc4db2afb1dec0460b965c705c2566d91e2db7a95bc23cbd7dc8cbdb9414d4b4a6306e7a57d5ff4eb658910f12497608d5442cc5d8c740dc5be446b5b