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Analysis
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max time kernel
119s -
max time network
117s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
21/09/2024, 01:44
Static task
static1
Behavioral task
behavioral1
Sample
bb405b380c623b401a5d4f6cc23b3d91ad871a76bd4dd19a6fce30f34d5f5784N.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
bb405b380c623b401a5d4f6cc23b3d91ad871a76bd4dd19a6fce30f34d5f5784N.exe
Resource
win10v2004-20240802-en
General
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Target
bb405b380c623b401a5d4f6cc23b3d91ad871a76bd4dd19a6fce30f34d5f5784N.exe
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Size
514KB
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MD5
dc53d3f643ba19a1c7967cc380660640
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SHA1
149b6e91d5039c843903765cc4e9f4b2b334559a
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SHA256
bb405b380c623b401a5d4f6cc23b3d91ad871a76bd4dd19a6fce30f34d5f5784
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SHA512
8b03d73a7d9d99235679087d9d5f1e0c50448454d847421f4b860f57c26b2b0a6460c415dcf340a3d4bd08b5e63ef6a51199cad737e1ed215f96a883514be66f
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SSDEEP
12288:l/lc87eqqV5e+wBV6O+NXJzwByDZJtwuSdd8wfG68XimP:l/SqqHeVBx4XJ0kxtSPJJKimP
Malware Config
Signatures
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Executes dropped EXE 3 IoCs
pid Process 2544 ctfmvr32.exe 2400 ~C9F3.tmp 2932 nets_ssp.exe -
Loads dropped DLL 3 IoCs
pid Process 2988 bb405b380c623b401a5d4f6cc23b3d91ad871a76bd4dd19a6fce30f34d5f5784N.exe 2988 bb405b380c623b401a5d4f6cc23b3d91ad871a76bd4dd19a6fce30f34d5f5784N.exe 2544 ctfmvr32.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\netsethc = "C:\\Users\\Admin\\AppData\\Roaming\\MRINings\\ctfmvr32.exe" bb405b380c623b401a5d4f6cc23b3d91ad871a76bd4dd19a6fce30f34d5f5784N.exe -
Drops file in System32 directory 1 IoCs
description ioc Process File created C:\Windows\SysWOW64\nets_ssp.exe bb405b380c623b401a5d4f6cc23b3d91ad871a76bd4dd19a6fce30f34d5f5784N.exe -
System Location Discovery: System Language Discovery 1 TTPs 3 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 nets_ssp.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language bb405b380c623b401a5d4f6cc23b3d91ad871a76bd4dd19a6fce30f34d5f5784N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ctfmvr32.exe -
Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 2544 ctfmvr32.exe 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE 1192 Explorer.EXE -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2544 ctfmvr32.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 2988 wrote to memory of 2544 2988 bb405b380c623b401a5d4f6cc23b3d91ad871a76bd4dd19a6fce30f34d5f5784N.exe 30 PID 2988 wrote to memory of 2544 2988 bb405b380c623b401a5d4f6cc23b3d91ad871a76bd4dd19a6fce30f34d5f5784N.exe 30 PID 2988 wrote to memory of 2544 2988 bb405b380c623b401a5d4f6cc23b3d91ad871a76bd4dd19a6fce30f34d5f5784N.exe 30 PID 2988 wrote to memory of 2544 2988 bb405b380c623b401a5d4f6cc23b3d91ad871a76bd4dd19a6fce30f34d5f5784N.exe 30 PID 2544 wrote to memory of 2400 2544 ctfmvr32.exe 32 PID 2544 wrote to memory of 2400 2544 ctfmvr32.exe 32 PID 2544 wrote to memory of 2400 2544 ctfmvr32.exe 32 PID 2544 wrote to memory of 2400 2544 ctfmvr32.exe 32 PID 2400 wrote to memory of 1192 2400 ~C9F3.tmp 21
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵
- Suspicious behavior: EnumeratesProcesses
PID:1192 -
C:\Users\Admin\AppData\Local\Temp\bb405b380c623b401a5d4f6cc23b3d91ad871a76bd4dd19a6fce30f34d5f5784N.exe"C:\Users\Admin\AppData\Local\Temp\bb405b380c623b401a5d4f6cc23b3d91ad871a76bd4dd19a6fce30f34d5f5784N.exe"2⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2988 -
C:\Users\Admin\AppData\Roaming\MRINings\ctfmvr32.exe"C:\Users\Admin\AppData\Roaming\MRINings"3⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2544 -
C:\Users\Admin\AppData\Local\Temp\~C9F3.tmp1192 526856 2544 14⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2400
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C:\Windows\SysWOW64\nets_ssp.exeC:\Windows\SysWOW64\nets_ssp.exe -s1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2932
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
8KB
MD586dc243576cf5c7445451af37631eea9
SHA199a81c47c4c02f32c0ab456bfa23c306c7a09bf9
SHA25625d2a671e1b5b5b95697ac0234ce4d46e0d0894919521b54aabebd9daecf994a
SHA512c7310524f9b65f811146c1eb6ae944966351ac88a95fbc1ac422d8810730e5e212a7e28090ad758ea23c96ba38073e7fcf42460575e7f09dbc759a45c5d5a4a4
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Filesize
514KB
MD5a56b90f2b70260ab04ceccac3db3db69
SHA1aacc9ac58175bbf65a690f76f119d0379cb69063
SHA256b1bbcd79841458f39ac1c48b5c460604126a975b3702156351ae073a2915eee9
SHA512e4074284c1f353dfea3fc70f2682c85e264b92459e7f7c6e26903539d4731dc21658bcf6ead517b979cec2529433b33e1f7dc4ca578ed6dfbf7bf1ca308c2d05