075e9941b491dc384744873446eee63d2ee56afa33a9d125f5ab67d88281bf3f

General

Target

document-246961895.xls
Size

138KB
MD5

daf8e8e76614a4d0d15d8cbd57adefd2
SHA1

12213007f05143448971f1e306eb0724b60bbb9b
SHA256

d8e3f79d4c4e19a8562abfb10a88303b97d5bfaca4d1b7d152881923f813cac8
SHA512

d16387f4ae9c736fe835674ca776dbfd287b1433ac992ae60d4cd2c6f066f8adb7969063854b38cd7d92a50a89f407c81f95fe01b16c244fc39fc1b48a07b234

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	2320	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 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

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 2320	1400	EXCEL.EXE	rundll32.exe
PID 1400 wrote to memory of 2320	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-246961895.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:2320

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/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/1400-6-0x00007FF98ADC0000-0x00007FF98B3F7000-memory.dmp

Filesize
6.2MB

Download
memory/2320-7-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads