b2883b728b9bf8074b8f47fd588ed241e73ebd7ed878001fe06599b956c9917c

General

Target

document-1388821476.xls
Size

138KB
MD5

102c42e37d69f7b0bdd22535e943701d
SHA1

9b6d23586cad108bd8ad634cdc274d7848427149
SHA256

64cc0ef2b4d2b1ee6d5604fbbaf3517472d933da6bb5b77126a5d2a1b3c553b7
SHA512

9ebcac73058ec1cca2248ee5c262766d8d5de9aa956072aef23faa38189c2a3daa8a8e0abcca86ce7715d5977916e130d6e368855db4ea6286e2521f66ecf700

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	2124	576	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

576 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
576	EXCEL.EXE
576	EXCEL.EXE
576	EXCEL.EXE
576	EXCEL.EXE
576	EXCEL.EXE
576	EXCEL.EXE
576	EXCEL.EXE
576	EXCEL.EXE
576	EXCEL.EXE
576	EXCEL.EXE
576	EXCEL.EXE
576	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description pid process target process

PID 576 wrote to memory of 2124 576 EXCEL.EXE rundll32.exe
PID 576 wrote to memory of 2124 576 EXCEL.EXE rundll32.exe

description	pid	process	target process
PID 576 wrote to memory of 2124	576	EXCEL.EXE	rundll32.exe
PID 576 wrote to memory of 2124	576	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-1388821476.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:576

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\zfbfg.ere,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:2124

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/576-2-0x00007FFD37CB0000-0x00007FFD37CC0000-memory.dmp

Filesize
64KB

Download
memory/576-3-0x00007FFD37CB0000-0x00007FFD37CC0000-memory.dmp

Filesize
64KB

Download
memory/576-4-0x00007FFD37CB0000-0x00007FFD37CC0000-memory.dmp

Filesize
64KB

Download
memory/576-6-0x00007FFD37CB0000-0x00007FFD37CC0000-memory.dmp

Filesize
64KB

Download
memory/576-5-0x00007FFD5D940000-0x00007FFD5DF77000-memory.dmp

Filesize
6.2MB

Download
memory/2124-7-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads