7e2a11cecbc2923948aadee268e34f62c2d6e661986e52ae495358a24b64bcfe

General

Target

Cu1QR2z38E4W2NgQHfqV.xlsm
Size

86KB
MD5

e0cc41db104dd584ec0892a6d9272857
SHA1

6981c956a823237fdf70f7991c1e26e3f717c2bf
SHA256

7e2a11cecbc2923948aadee268e34f62c2d6e661986e52ae495358a24b64bcfe
SHA512

475edf003707a8146f986501598a16b97db8b5b2137a3ed2ac1188a90b311d70de7870d6aa0ffa60e2b60006091c1749a6cef733300f26385ab7a0f4ef8c07fd

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 2 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

rundll32.exerundll32.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	3108	3152	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3468	3152	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 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

3152 EXCEL.EXE

Suspicious use of SetWindowsHookEx 17 IoCs

Processes:

EXCEL.EXE

pid	process
3152	EXCEL.EXE
3152	EXCEL.EXE
3152	EXCEL.EXE
3152	EXCEL.EXE
3152	EXCEL.EXE
3152	EXCEL.EXE
3152	EXCEL.EXE
3152	EXCEL.EXE
3152	EXCEL.EXE
3152	EXCEL.EXE
3152	EXCEL.EXE
3152	EXCEL.EXE
3152	EXCEL.EXE
3152	EXCEL.EXE
3152	EXCEL.EXE
3152	EXCEL.EXE
3152	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3152 wrote to memory of 3108	3152	EXCEL.EXE	rundll32.exe
PID 3152 wrote to memory of 3108	3152	EXCEL.EXE	rundll32.exe
PID 3152 wrote to memory of 3468	3152	EXCEL.EXE	rundll32.exe
PID 3152 wrote to memory of 3468	3152	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\Cu1QR2z38E4W2NgQHfqV.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3152

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\wett.xiu2,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3108

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\wett.xiu1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3468

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

C:\Users\Admin\wett.xiu1
MD5
0357aa49ea850b11b99d09a2479c321b

SHA1
41472ba5c40f61fa1c77c42cf06248f13b8785f0

SHA256
0ff0b7fcb090c65d0bdcb2af4bbd2c30f33356b3ce9b117186fa20391ef840a3

SHA512
a317a0f035b8dff7ca60c76b0b75698a3528fd4c7c5e915292c982d2b38c1c937c318362c891e93bee6fdb1b166764d7183140a837fd23daa2be3d2dac5a5dfc

Download Submit
memory/3108-179-0x0000000000000000-mapping.dmp

Download
memory/3152-114-0x00007FF7D4230000-0x00007FF7D77E6000-memory.dmp

Filesize
53.7MB

Download
memory/3152-115-0x00007FF800890000-0x00007FF8008A0000-memory.dmp

Filesize
64KB

Download
memory/3152-116-0x00007FF800890000-0x00007FF8008A0000-memory.dmp

Filesize
64KB

Download
memory/3152-117-0x00007FF800890000-0x00007FF8008A0000-memory.dmp

Filesize
64KB

Download
memory/3152-118-0x00007FF800890000-0x00007FF8008A0000-memory.dmp

Filesize
64KB

Download
memory/3152-122-0x00007FF800890000-0x00007FF8008A0000-memory.dmp

Filesize
64KB

Download
memory/3152-121-0x00007FF821040000-0x00007FF82212E000-memory.dmp

Filesize
16.9MB

Download
memory/3152-123-0x00007FF81F140000-0x00007FF821035000-memory.dmp

Filesize
31.0MB

Download
memory/3468-180-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads