Analysis
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max time kernel
143s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
31/08/2024, 07:46
Static task
static1
Behavioral task
behavioral1
Sample
cc6f4385cd9e778f241bddc1467e1e8c_JaffaCakes118.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
cc6f4385cd9e778f241bddc1467e1e8c_JaffaCakes118.exe
Resource
win10v2004-20240802-en
General
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Target
cc6f4385cd9e778f241bddc1467e1e8c_JaffaCakes118.exe
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Size
755KB
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MD5
cc6f4385cd9e778f241bddc1467e1e8c
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SHA1
77d091a48cfe12a00e4e9e5ce76ba0df8245d631
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SHA256
3cf884c82bfa4d0465dc71b089185a784dde18ca0d5dfa6b9f9a35ff5950a92d
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SHA512
b263cd148f5411e89a77bbc2965d6534c12ffe7759a5757788a0b24884e382077552671dd1447e7c34576d5c2b525035a294723b98381d5302df7d85d9dbc49c
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SSDEEP
12288:F9pfgD4Ea7F9oTIUrDcD51DTVYEfSp4fTSNvcdXm7H8RG6RbJJvH2:r1gXb7roPVYEf7fWpqXm77+JvH2
Malware Config
Signatures
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ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
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description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" mstwain32.exe -
ModiLoader Second Stage 13 IoCs
resource yara_rule behavioral1/memory/292-3-0x0000000000401000-0x000000000044C000-memory.dmp modiloader_stage2 behavioral1/memory/292-4-0x0000000000400000-0x0000000000505000-memory.dmp modiloader_stage2 behavioral1/memory/292-16-0x0000000000401000-0x000000000044C000-memory.dmp modiloader_stage2 behavioral1/memory/292-15-0x0000000000400000-0x0000000000505000-memory.dmp modiloader_stage2 behavioral1/memory/1140-22-0x0000000000400000-0x0000000000505000-memory.dmp modiloader_stage2 behavioral1/memory/1140-26-0x0000000000400000-0x0000000000505000-memory.dmp modiloader_stage2 behavioral1/memory/1140-29-0x0000000000400000-0x0000000000505000-memory.dmp modiloader_stage2 behavioral1/memory/1140-30-0x0000000000400000-0x0000000000505000-memory.dmp modiloader_stage2 behavioral1/memory/1140-31-0x0000000000400000-0x0000000000505000-memory.dmp modiloader_stage2 behavioral1/memory/1140-32-0x0000000000400000-0x0000000000505000-memory.dmp modiloader_stage2 behavioral1/memory/1140-33-0x0000000000400000-0x0000000000505000-memory.dmp modiloader_stage2 behavioral1/memory/1140-36-0x0000000000400000-0x0000000000505000-memory.dmp modiloader_stage2 behavioral1/memory/1140-37-0x0000000000400000-0x0000000000505000-memory.dmp modiloader_stage2 -
Deletes itself 1 IoCs
pid Process 1140 mstwain32.exe -
Executes dropped EXE 1 IoCs
pid Process 1140 mstwain32.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-940600906-3464502421-4240639183-1000\Software\Microsoft\Windows\CurrentVersion\Run\mstwain32 = "C:\\Windows\\mstwain32.exe" mstwain32.exe -
description ioc Process Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA cc6f4385cd9e778f241bddc1467e1e8c_JaffaCakes118.exe Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA mstwain32.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" mstwain32.exe -
Drops file in Windows directory 4 IoCs
description ioc Process File opened for modification C:\Windows\mstwain32.exe cc6f4385cd9e778f241bddc1467e1e8c_JaffaCakes118.exe File created C:\Windows\ntdtcstp.dll mstwain32.exe File created C:\Windows\cmsetac.dll mstwain32.exe File created C:\Windows\mstwain32.exe cc6f4385cd9e778f241bddc1467e1e8c_JaffaCakes118.exe -
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 2 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 cc6f4385cd9e778f241bddc1467e1e8c_JaffaCakes118.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language mstwain32.exe -
Modifies registry class 4 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\wd1342760268b.fdr cc6f4385cd9e778f241bddc1467e1e8c_JaffaCakes118.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\wd1342760268b.fdr\ = 28459d1309f43e19cf746c9a0c8953ae117d2b3612e2d2ee cc6f4385cd9e778f241bddc1467e1e8c_JaffaCakes118.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\wd1342760268b.fdr mstwain32.exe Set value (data) \REGISTRY\MACHINE\SOFTWARE\Classes\wd1342760268b.fdr\ = 28459d1309f43e19cf746c9a0c8953ae117d2b3612e2d2ee mstwain32.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
description pid Process Token: SeDebugPrivilege 292 cc6f4385cd9e778f241bddc1467e1e8c_JaffaCakes118.exe Token: SeBackupPrivilege 1712 vssvc.exe Token: SeRestorePrivilege 1712 vssvc.exe Token: SeAuditPrivilege 1712 vssvc.exe Token: SeDebugPrivilege 1140 mstwain32.exe Token: SeDebugPrivilege 1140 mstwain32.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1140 mstwain32.exe 1140 mstwain32.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 292 wrote to memory of 1140 292 cc6f4385cd9e778f241bddc1467e1e8c_JaffaCakes118.exe 33 PID 292 wrote to memory of 1140 292 cc6f4385cd9e778f241bddc1467e1e8c_JaffaCakes118.exe 33 PID 292 wrote to memory of 1140 292 cc6f4385cd9e778f241bddc1467e1e8c_JaffaCakes118.exe 33 PID 292 wrote to memory of 1140 292 cc6f4385cd9e778f241bddc1467e1e8c_JaffaCakes118.exe 33 -
System policy modification 1 TTPs 1 IoCs
description ioc Process Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0" mstwain32.exe -
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\cc6f4385cd9e778f241bddc1467e1e8c_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\cc6f4385cd9e778f241bddc1467e1e8c_JaffaCakes118.exe"1⤵
- Checks whether UAC is enabled
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:292 -
C:\Windows\mstwain32.exe"C:\Windows\mstwain32.exe" \melt "C:\Users\Admin\AppData\Local\Temp\cc6f4385cd9e778f241bddc1467e1e8c_JaffaCakes118.exe"2⤵
- UAC bypass
- Deletes itself
- Executes dropped EXE
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- System policy modification
PID:1140
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1712
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Impair Defenses
1Disable or Modify Tools
1Modify Registry
3Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Roaming\Microsoft\Crypto\RSA\S-1-5-21-940600906-3464502421-4240639183-1000\549b9b645cadfe6bb4bc69cf363c354c_c13b6b87-25b1-4e34-a420-7feacfe0b8db
Filesize2KB
MD5f97f9e17eafdd0105a4e11bafde04b40
SHA1ba06a7abe986a61b71889b80a6f9b02b22d40667
SHA2564783424121e6c2f870dc931b374d20c62c764eddc5769d2f536609adc1226abb
SHA512778c4aab55f6f0fe44dbc9a97f53b59ec8ed2e35901f77afebaea57c738ad301412760709ab909b51335ddd7676cd8f8c1410c5751f2ef5cc74282bcd6c5f50e
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Filesize
755KB
MD5cc6f4385cd9e778f241bddc1467e1e8c
SHA177d091a48cfe12a00e4e9e5ce76ba0df8245d631
SHA2563cf884c82bfa4d0465dc71b089185a784dde18ca0d5dfa6b9f9a35ff5950a92d
SHA512b263cd148f5411e89a77bbc2965d6534c12ffe7759a5757788a0b24884e382077552671dd1447e7c34576d5c2b525035a294723b98381d5302df7d85d9dbc49c