24c6558f2fb6d51f674db36a608073276fb6d7ae856a6d5d096d4a1dafb9ef1d

General

Target

document-329225670.xls
Size

138KB
MD5

8ca40e8ffb40bbb82e77b32f513275d8
SHA1

cbba0b1b68e56e99036b8fca41d7c2e78ed87cd2
SHA256

24c6558f2fb6d51f674db36a608073276fb6d7ae856a6d5d096d4a1dafb9ef1d
SHA512

fb653ed5b06bf8a3ca0acef4b3a192da2a360b9dc5cd0a80503edbd87d73b70e80f2979210455b771c196ff9465ccd246042c985e5c8aea0dd3828d80c564172

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

rundll32.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	2464	1400	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	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\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1400 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
1400	EXCEL.EXE
1400	EXCEL.EXE
1400	EXCEL.EXE
1400	EXCEL.EXE
1400	EXCEL.EXE
1400	EXCEL.EXE
1400	EXCEL.EXE
1400	EXCEL.EXE
1400	EXCEL.EXE
1400	EXCEL.EXE
1400	EXCEL.EXE
1400	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1400 wrote to memory of 2464	1400	EXCEL.EXE	rundll32.exe
PID 1400 wrote to memory of 2464	1400	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\document-329225670.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1400

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\zfbfg.ere,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:2464

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/1400-2-0x00007FF967810000-0x00007FF967820000-memory.dmp

Filesize
64KB

Download
memory/1400-3-0x00007FF967810000-0x00007FF967820000-memory.dmp

Filesize
64KB

Download
memory/1400-4-0x00007FF967810000-0x00007FF967820000-memory.dmp

Filesize
64KB

Download
memory/1400-5-0x00007FF967810000-0x00007FF967820000-memory.dmp

Filesize
64KB

Download
memory/1400-6-0x00007FF98AD80000-0x00007FF98B3B7000-memory.dmp

Filesize
6.2MB

Download
memory/2464-7-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads