46ddecbf4398ad5a3da87343d2c4033fd54dd8ecca4a66954b81622f822cb3f0

General

Target

254840536256708365.xls
Size

106KB
MD5

55ba3916ea9a011629299b8e22b98a5e
SHA1

06bafc08eeeb7285631ef678c34108d7e73473fa
SHA256

46ddecbf4398ad5a3da87343d2c4033fd54dd8ecca4a66954b81622f822cb3f0
SHA512

3921ec370745370837fcbd5d1f59ad01484d91835b72a0449f28a7c84b12fac51897d8909ffb055c3ee6f6dc1425a1b350fc7120702fde9053b125c7add20d22

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	312	988	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

988 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
988	EXCEL.EXE
988	EXCEL.EXE
988	EXCEL.EXE
988	EXCEL.EXE
988	EXCEL.EXE
988	EXCEL.EXE
988	EXCEL.EXE
988	EXCEL.EXE
988	EXCEL.EXE
988	EXCEL.EXE
988	EXCEL.EXE
988	EXCEL.EXE
988	EXCEL.EXE
988	EXCEL.EXE

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

EXCEL.EXE

description pid process target process

PID 988 wrote to memory of 312 988 EXCEL.EXE rundll32.exe
PID 988 wrote to memory of 312 988 EXCEL.EXE rundll32.exe

description	pid	process	target process
PID 988 wrote to memory of 312	988	EXCEL.EXE	rundll32.exe
PID 988 wrote to memory of 312	988	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\254840536256708365.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:988

C:\Windows\System32\rundll32.exe
"C:\Windows\System32\rundll32.exe" C:\uzkelPc\brvypPe\FXSHmvw.dll,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:312

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/312-7-0x0000000000000000-mapping.dmp

Download
memory/988-2-0x00007FF8DB0A0000-0x00007FF8DB0B0000-memory.dmp

Filesize
64KB

Download
memory/988-3-0x00007FF8DB0A0000-0x00007FF8DB0B0000-memory.dmp

Filesize
64KB

Download
memory/988-4-0x00007FF8DB0A0000-0x00007FF8DB0B0000-memory.dmp

Filesize
64KB

Download
memory/988-5-0x00007FF901040000-0x00007FF901677000-memory.dmp

Filesize
6.2MB

Download
memory/988-6-0x00007FF8DB0A0000-0x00007FF8DB0B0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads