07f7f5ac05c7d09206105d3827cdf09e69575f74a0337824ffb0c7fa19dbac0a

General

Target

notif_2227.xlsb
Size

67KB
MD5

b9331085a13ece7ef497f93dcd2741d6
SHA1

c8a844989501bf3e47266d4d5a5e083856bb0feb
SHA256

07f7f5ac05c7d09206105d3827cdf09e69575f74a0337824ffb0c7fa19dbac0a
SHA512

6f4720aa130e45f0c8b1f1f04ae1041c74d4646a04e23e2dd23400333f123b3c3838986e68e101649933951c73665e9bf5d766f762362bea71f3e00d450e0e11

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	3096	4768	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\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4768 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4768	EXCEL.EXE
4768	EXCEL.EXE
4768	EXCEL.EXE
4768	EXCEL.EXE
4768	EXCEL.EXE
4768	EXCEL.EXE
4768	EXCEL.EXE
4768	EXCEL.EXE
4768	EXCEL.EXE
4768	EXCEL.EXE
4768	EXCEL.EXE
4768	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 4768 wrote to memory of 3096	4768	EXCEL.EXE	rundll32.exe
PID 4768 wrote to memory of 3096	4768	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\notif_2227.xlsb"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4768

C:\Windows\System32\rundll32.exe
"C:\Windows\System32\rundll32.exe" C:\YmiReEE\foBcwbz\KCmUWqT.dll,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3096

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/3096-7-0x0000000000000000-mapping.dmp

Download
memory/4768-2-0x00007FF91BD80000-0x00007FF91BD90000-memory.dmp

Filesize
64KB

Download
memory/4768-3-0x00007FF91BD80000-0x00007FF91BD90000-memory.dmp

Filesize
64KB

Download
memory/4768-4-0x00007FF91BD80000-0x00007FF91BD90000-memory.dmp

Filesize
64KB

Download
memory/4768-5-0x00007FF942080000-0x00007FF9426B7000-memory.dmp

Filesize
6.2MB

Download
memory/4768-6-0x00007FF91BD80000-0x00007FF91BD90000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads