65511c269199007b6a378c6f8e48fe58b2398deaef305e6aac5a94afa69ade48

General

Target

document-2116115857.xls
Size

138KB
MD5

298b04a1308d15fec52c6ee0de68b208
SHA1

eaa5b596a388458d54e6b7c9313c1b61689ac817
SHA256

f44844a796ae3701b351e396b6fc5ec77120cc46d377c152dac982c9e4498eb3
SHA512

6176f4eb8fa64f004d2981b3ef1762e38010a798ab1f82d941a06c73b444336323154245c6af83710dfdb619ba5ccafec440e5325395aa7dbf208e16a61c1e3e

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	744	1152	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 opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1152 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

1152 EXCEL.EXE
1152 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description pid process target process

PID 1152 wrote to memory of 744 1152 EXCEL.EXE rundll32.exe
PID 1152 wrote to memory of 744 1152 EXCEL.EXE rundll32.exe

description	pid	process	target process
PID 1152 wrote to memory of 744	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 744	1152	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-2116115857.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:1152

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\zfbfg.ere,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:744

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/744-7-0x0000000000000000-mapping.dmp

Download
memory/1152-2-0x00007FFB31D10000-0x00007FFB31D20000-memory.dmp

Filesize
64KB

Download
memory/1152-3-0x00007FFB31D10000-0x00007FFB31D20000-memory.dmp

Filesize
64KB

Download
memory/1152-4-0x00007FFB31D10000-0x00007FFB31D20000-memory.dmp

Filesize
64KB

Download
memory/1152-5-0x00007FFB54FA0000-0x00007FFB555D7000-memory.dmp

Filesize
6.2MB

Download
memory/1152-6-0x00007FFB31D10000-0x00007FFB31D20000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads