02c595803dc392dc235f662d7124b5e7814d2fa3e271b0ef7db3eefbbae03be3

General

Target

document-175074882.xls
Size

138KB
MD5

025d30c1239a11145861d23830ab7371
SHA1

cb4bd95fed11cd01217b724afb805ce3bd1fbd22
SHA256

13c940fd10db22f5270f1a5b20272f9ca3653f7e7d77a1265759b8c9994ef016
SHA512

1e3ace43d88beb9fc66064489c328b23f9285d7366ffb50763e2b02507afb1eaed38da486ed37687885262bd9edd2e78d78e8152a6ea4e7643755cdb904e62d2

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	2916	4704	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\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	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

4704 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

4704 EXCEL.EXE
4704 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4704	EXCEL.EXE
4704	EXCEL.EXE
4704	EXCEL.EXE
4704	EXCEL.EXE
4704	EXCEL.EXE
4704	EXCEL.EXE
4704	EXCEL.EXE
4704	EXCEL.EXE
4704	EXCEL.EXE
4704	EXCEL.EXE
4704	EXCEL.EXE
4704	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 4704 wrote to memory of 2916	4704	EXCEL.EXE	rundll32.exe
PID 4704 wrote to memory of 2916	4704	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-175074882.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:4704

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\zfbfg.ere,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:2916

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/2916-7-0x0000000000000000-mapping.dmp

Download
memory/4704-2-0x00007FF82F820000-0x00007FF82F830000-memory.dmp

Filesize
64KB

Download
memory/4704-3-0x00007FF82F820000-0x00007FF82F830000-memory.dmp

Filesize
64KB

Download
memory/4704-4-0x00007FF82F820000-0x00007FF82F830000-memory.dmp

Filesize
64KB

Download
memory/4704-5-0x00007FF853020000-0x00007FF853657000-memory.dmp

Filesize
6.2MB

Download
memory/4704-6-0x00007FF82F820000-0x00007FF82F830000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads