Analysis Overview
SHA256
a2e85069fc46ebd9d42f5032342656337b40583c3f94f82f653e17dd5bae7f5f
Threat Level: Known bad
The file a2e85069fc46ebd9d42f5032342656337b40583c3f94f82f653e17dd5bae7f5f was found to be: Known bad.
Malicious Activity Summary
Bazar Loader
Process spawned unexpected child process
Bazar/Team9 Loader payload
Loads dropped DLL
Enumerates system info in registry
Suspicious use of SetWindowsHookEx
Checks processor information in registry
Suspicious behavior: AddClipboardFormatListener
Suspicious use of WriteProcessMemory
MITRE ATT&CK
Enterprise Matrix V6
Analysis: static1
Detonation Overview
Reported
2022-01-19 03:45
Signatures
Analysis: behavioral1
Detonation Overview
Submitted
2022-01-19 03:45
Reported
2022-01-19 03:47
Platform
win10-en-20211208
Max time kernel
118s
Max time network
136s
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 |
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 value queried | \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | N/A |
| 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 |
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 1052 wrote to memory of 2452 | N/A | C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE | C:\Windows\SYSTEM32\rundll32.exe |
| PID 1052 wrote to memory of 2452 | 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\a2e85069fc46ebd9d42f5032342656337b40583c3f94f82f653e17dd5bae7f5f.xll"
C:\Windows\SYSTEM32\rundll32.exe
rundll32 C:\Users\Admin\JavaObjectReflectJ.dll , dopt
Network
| Country | Destination | Domain | Proto |
| US | 52.109.12.18:443 | tcp |
Files
memory/1052-115-0x00007FF89DB10000-0x00007FF89DB20000-memory.dmp
memory/1052-116-0x00007FF89DB10000-0x00007FF89DB20000-memory.dmp
\Users\Admin\AppData\Local\Temp\a2e85069fc46ebd9d42f5032342656337b40583c3f94f82f653e17dd5bae7f5f.xll
| MD5 | 3ac316aac73c0740b4991a78b88832bf |
| SHA1 | 5b9890709fb8c6a3f22868992fed7dbc2dfcc003 |
| SHA256 | a2e85069fc46ebd9d42f5032342656337b40583c3f94f82f653e17dd5bae7f5f |
| SHA512 | fba4392e148a1dc6c4214217cddea51f104b1b193a4dd4eca5b904fd5a96bc68bc4988ab02a22ea0d576f081b4154931813c2a957697ed9613bde0afd8690c0a |
\Users\Admin\AppData\Local\Temp\a2e85069fc46ebd9d42f5032342656337b40583c3f94f82f653e17dd5bae7f5f.xll
| MD5 | 3ac316aac73c0740b4991a78b88832bf |
| SHA1 | 5b9890709fb8c6a3f22868992fed7dbc2dfcc003 |
| SHA256 | a2e85069fc46ebd9d42f5032342656337b40583c3f94f82f653e17dd5bae7f5f |
| SHA512 | fba4392e148a1dc6c4214217cddea51f104b1b193a4dd4eca5b904fd5a96bc68bc4988ab02a22ea0d576f081b4154931813c2a957697ed9613bde0afd8690c0a |
C:\Users\Admin\JavaObjectReflectJ.dll
| MD5 | cb308f7f9e61f9ec5b41cfabf4e1b62c |
| SHA1 | 2a9d6252a71291dbf41b3983dd566c14f96c401c |
| SHA256 | 139d41298c43094178abdb9f1184633cfe176244bdfbb40c78c112033c2a666d |
| SHA512 | 9a084e535f41e232a9d80f8c175f5efc7f65faddc8e632e75eeeb0a2330146c43444dc8f7ffc31049317b0343a561209548edafb4d930e55f8221ab0cbc83c02 |
\Users\Admin\JavaObjectReflectJ.dll
| MD5 | cb308f7f9e61f9ec5b41cfabf4e1b62c |
| SHA1 | 2a9d6252a71291dbf41b3983dd566c14f96c401c |
| SHA256 | 139d41298c43094178abdb9f1184633cfe176244bdfbb40c78c112033c2a666d |
| SHA512 | 9a084e535f41e232a9d80f8c175f5efc7f65faddc8e632e75eeeb0a2330146c43444dc8f7ffc31049317b0343a561209548edafb4d930e55f8221ab0cbc83c02 |
memory/2452-901-0x0000000180000000-0x000000018003C000-memory.dmp