ed17094f3e820674c9fa18192292108e8766d28eb0afcc0cf350a44b54196c1d

General

Target

document-1900770373.xls
Size

88KB
MD5

139a10b28479f4f9e2e4465053e039f8
SHA1

10251eb69e603ed7259265015b71b1160e3b4a06
SHA256

ed17094f3e820674c9fa18192292108e8766d28eb0afcc0cf350a44b54196c1d
SHA512

a37e69ad6fad31c7c39dd263d59758230e29add9c93b59d747dc4616fcf0c4ced09293a9d5e3fe633712311e4347483983fba5a713193f660b8f0fda2320cb88

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	3732	3248	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

3248 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
3248	EXCEL.EXE
3248	EXCEL.EXE
3248	EXCEL.EXE
3248	EXCEL.EXE
3248	EXCEL.EXE
3248	EXCEL.EXE
3248	EXCEL.EXE
3248	EXCEL.EXE
3248	EXCEL.EXE
3248	EXCEL.EXE
3248	EXCEL.EXE
3248	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3248 wrote to memory of 3732	3248	EXCEL.EXE	rundll32.exe
PID 3248 wrote to memory of 3732	3248	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-1900770373.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3248

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\idefje.ekfd,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3732

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/3248-2-0x00007FF7FC7D0000-0x00007FF7FC7E0000-memory.dmp

Filesize
64KB

Download
memory/3248-3-0x00007FF7FC7D0000-0x00007FF7FC7E0000-memory.dmp

Filesize
64KB

Download
memory/3248-4-0x00007FF7FC7D0000-0x00007FF7FC7E0000-memory.dmp

Filesize
64KB

Download
memory/3248-5-0x00007FF7FC7D0000-0x00007FF7FC7E0000-memory.dmp

Filesize
64KB

Download
memory/3248-6-0x00007FF81FB70000-0x00007FF8201A7000-memory.dmp

Filesize
6.2MB

Download
memory/3732-7-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads