Analysis Overview
SHA256
f983a109d3d2856794352c36289e6f34f0f55420acfdc196ec9c75095eb79c90
Threat Level: Known bad
The file f983a109d3d2856794352c36289e6f34f0f55420acfdc196ec9c75095eb79c90 was found to be: Known bad.
Malicious Activity Summary
Process spawned unexpected child process
Bazar Loader
Bazar/Team9 Loader payload
Blocklisted process makes network request
Loads dropped DLL
Enumerates system info in registry
Suspicious behavior: AddClipboardFormatListener
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Checks processor information in registry
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-01-19 04:26
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-01-19 04:26
Reported
2022-01-19 04:28
Platform
win10v2004-en-20220113
Max time kernel
149s
Max time network
153s
Command Line
Signatures
Bazar Loader
Process spawned unexpected child process
| Description | Indicator | Process | Target |
| Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process | N/A | C:\Windows\SYSTEM32\rundll32.exe | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE |
Bazar/Team9 Loader payload
| Description | Indicator | Process | Target |
| N/A | N/A | N/A | N/A |
Blocklisted process makes network request
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Windows\SYSTEM32\rundll32.exe | N/A |
| N/A | N/A | C:\Windows\SYSTEM32\rundll32.exe | N/A |
Loads dropped DLL
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| N/A | N/A | C:\Windows\SYSTEM32\rundll32.exe | N/A |
Checks processor information in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
Enumerates system info in registry
| Description | Indicator | Process | Target |
| Key opened | \REGISTRY\MACHINE\Hardware\Description\System\BIOS | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| Key value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
Suspicious behavior: AddClipboardFormatListener
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
Suspicious use of SetWindowsHookEx
| Description | Indicator | Process | Target |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| N/A | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
Suspicious use of WriteProcessMemory
| Description | Indicator | Process | Target |
| PID 1432 wrote to memory of 2932 | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | C:\Windows\SYSTEM32\rundll32.exe |
| PID 1432 wrote to memory of 2932 | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | C:\Windows\SYSTEM32\rundll32.exe |
Processes
C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\f983a109d3d2856794352c36289e6f34f0f55420acfdc196ec9c75095eb79c90.xll"
C:\Windows\SYSTEM32\rundll32.exe
rundll32 C:\Users\Admin\JavaObjectReflectO.dll , dopt
Network
| Country | Destination | Domain | Proto |
| UA | 91.201.202.219:443 | tcp | |
| NL | 194.147.115.132:443 | tcp |
Files
memory/1432-130-0x00007FF8A6690000-0x00007FF8A66A0000-memory.dmp
memory/1432-131-0x00007FF8A6690000-0x00007FF8A66A0000-memory.dmp
memory/1432-132-0x00007FF8A6690000-0x00007FF8A66A0000-memory.dmp
memory/1432-133-0x00007FF8A6690000-0x00007FF8A66A0000-memory.dmp
memory/1432-134-0x00007FF8A6690000-0x00007FF8A66A0000-memory.dmp
memory/1432-137-0x00007FF8A4630000-0x00007FF8A4640000-memory.dmp
memory/1432-138-0x00007FF8A4630000-0x00007FF8A4640000-memory.dmp
C:\Users\Admin\AppData\Local\Temp\f983a109d3d2856794352c36289e6f34f0f55420acfdc196ec9c75095eb79c90.xll
| MD5 | e476534e17521b823794d3cc338da3e5 |
| SHA1 | f26daa812ee01d3c5b6cb3412248107ad5b8253d |
| SHA256 | f983a109d3d2856794352c36289e6f34f0f55420acfdc196ec9c75095eb79c90 |
| SHA512 | 32a37814a8110da741386b4aba804002eadbdea1390961bc291acfda709c8d0e0644b68e228d35d828f2b916fbd21b3e4bb2acde2c7ff2a66fc7292462c4d7ae |
C:\Users\Admin\AppData\Local\Temp\f983a109d3d2856794352c36289e6f34f0f55420acfdc196ec9c75095eb79c90.xll
| MD5 | e476534e17521b823794d3cc338da3e5 |
| SHA1 | f26daa812ee01d3c5b6cb3412248107ad5b8253d |
| SHA256 | f983a109d3d2856794352c36289e6f34f0f55420acfdc196ec9c75095eb79c90 |
| SHA512 | 32a37814a8110da741386b4aba804002eadbdea1390961bc291acfda709c8d0e0644b68e228d35d828f2b916fbd21b3e4bb2acde2c7ff2a66fc7292462c4d7ae |
C:\Users\Admin\JavaObjectReflectO.dll
| MD5 | 73ea8ca7f1650fa3b3180b3017a58325 |
| SHA1 | 0dc8d539937870f0d20e207effdab9cc63ef8794 |
| SHA256 | d08b611997513b0e174fee5659b7dc3570b8378bfc3d7cd61c623c6a176b816a |
| SHA512 | cc2b3bf7e3c0993622560fc8ba3fdfd6fb3ee4fc8cc23ba0beae753b180af968457460e5e155f0488a6e5da7cc86f5f7292c07d779dcf5bb137b9f5b8a6881be |
C:\Users\Admin\JavaObjectReflectO.dll
| MD5 | 73ea8ca7f1650fa3b3180b3017a58325 |
| SHA1 | 0dc8d539937870f0d20e207effdab9cc63ef8794 |
| SHA256 | d08b611997513b0e174fee5659b7dc3570b8378bfc3d7cd61c623c6a176b816a |
| SHA512 | cc2b3bf7e3c0993622560fc8ba3fdfd6fb3ee4fc8cc23ba0beae753b180af968457460e5e155f0488a6e5da7cc86f5f7292c07d779dcf5bb137b9f5b8a6881be |
memory/2932-154-0x0000000180000000-0x000000018003C000-memory.dmp
memory/1432-174-0x00007FF8A6690000-0x00007FF8A66A0000-memory.dmp
memory/1432-175-0x00007FF8A6690000-0x00007FF8A66A0000-memory.dmp
memory/1432-176-0x00007FF8A6690000-0x00007FF8A66A0000-memory.dmp
memory/1432-177-0x00007FF8A6690000-0x00007FF8A66A0000-memory.dmp