2baf563da8db9e2ed765fa7697025d277d06ee53424f6513671f2f6b7441387b

General

Target

CompensationClaim_172261928_03152021.xls
Size

233KB
MD5

632c4d92e87e694a6268db1817611c5c
SHA1

e8348d9ba173c7f5a4dbe33ea86459eb0f9af10c
SHA256

2baf563da8db9e2ed765fa7697025d277d06ee53424f6513671f2f6b7441387b
SHA512

c5266f654e58094cdcfff9390f13bb9361294a72c8eac386db49f82b8f9f0d985f2e920e4cf59dbf7cc6d274b5a46c26c4fdc540e5d33fc502442e728f6c4ff0

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 3 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

Rundll32.exeRundll32.exeRundll32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1172	1192	Rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3520	1192	Rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1524	1192	Rundll32.exe	EXCEL.EXE

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

EXCEL.EXE

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1192 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

1192 EXCEL.EXE
1192 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
1192	EXCEL.EXE
1192	EXCEL.EXE
1192	EXCEL.EXE
1192	EXCEL.EXE
1192	EXCEL.EXE
1192	EXCEL.EXE
1192	EXCEL.EXE
1192	EXCEL.EXE
1192	EXCEL.EXE
1192	EXCEL.EXE
1192	EXCEL.EXE
1192	EXCEL.EXE

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1192 wrote to memory of 1172	1192	EXCEL.EXE	Rundll32.exe
PID 1192 wrote to memory of 1172	1192	EXCEL.EXE	Rundll32.exe
PID 1192 wrote to memory of 3520	1192	EXCEL.EXE	Rundll32.exe
PID 1192 wrote to memory of 3520	1192	EXCEL.EXE	Rundll32.exe
PID 1192 wrote to memory of 1524	1192	EXCEL.EXE	Rundll32.exe
PID 1192 wrote to memory of 1524	1192	EXCEL.EXE	Rundll32.exe

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\CompensationClaim_172261928_03152021.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1192

C:\Windows\SYSTEM32\Rundll32.exe
Rundll32 ..\SOT.GOT,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1172

C:\Windows\SYSTEM32\Rundll32.exe
Rundll32 ..\SOT.GOT1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3520

C:\Windows\SYSTEM32\Rundll32.exe
Rundll32 ..\SOT.GOT2,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1524

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1172-7-0x0000000000000000-mapping.dmp

Download
memory/1192-2-0x00007FFC444D0000-0x00007FFC444E0000-memory.dmp

Filesize
64KB

Download
memory/1192-3-0x00007FFC444D0000-0x00007FFC444E0000-memory.dmp

Filesize
64KB

Download
memory/1192-4-0x00007FFC444D0000-0x00007FFC444E0000-memory.dmp

Filesize
64KB

Download
memory/1192-5-0x00007FFC68C70000-0x00007FFC692A7000-memory.dmp

Filesize
6.2MB

Download
memory/1192-6-0x00007FFC444D0000-0x00007FFC444E0000-memory.dmp

Filesize
64KB

Download
memory/1524-9-0x0000000000000000-mapping.dmp

Download
memory/3520-8-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads