a29c86e43e78cfb3ba3759f7946d15d826129031ee884ebe3f76ef2fa90ababf

General

Target

catalog-2006600259.xls
Size

367KB
MD5

ed2013b4e4ccbc43be8f3a0413e099c1
SHA1

d039486f9775447792797d286467ac3d8ac987d4
SHA256

9997a64dd776de7a5c84866db4d7278b8218b9bef0ff2167c520d4ba7dd07db7
SHA512

c914134e55b48faac35c333739dedd5763382f0b60bd08bff8a29c62abc0a28ed172275e2b573ba0da4d0e455d96c47bf45b6f92040b4091c96f2ae9a376534a

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	2572	708	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	864	708	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

708 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
708	EXCEL.EXE
708	EXCEL.EXE
708	EXCEL.EXE
708	EXCEL.EXE
708	EXCEL.EXE
708	EXCEL.EXE
708	EXCEL.EXE
708	EXCEL.EXE
708	EXCEL.EXE
708	EXCEL.EXE
708	EXCEL.EXE
708	EXCEL.EXE
708	EXCEL.EXE
708	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 708 wrote to memory of 2572	708	EXCEL.EXE	rundll32.exe
PID 708 wrote to memory of 2572	708	EXCEL.EXE	rundll32.exe
PID 708 wrote to memory of 864	708	EXCEL.EXE	rundll32.exe
PID 708 wrote to memory of 864	708	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\catalog-2006600259.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:708

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:2572

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:864

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

Replay Monitor

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Downloads

memory/708-114-0x00007FF661D40000-0x00007FF6652F6000-memory.dmp

Filesize
53.7MB

Download
memory/708-115-0x00007FFF79C30000-0x00007FFF79C40000-memory.dmp

Filesize
64KB

Download
memory/708-116-0x00007FFF79C30000-0x00007FFF79C40000-memory.dmp

Filesize
64KB

Download
memory/708-117-0x00007FFF79C30000-0x00007FFF79C40000-memory.dmp

Filesize
64KB

Download
memory/708-118-0x00007FFF79C30000-0x00007FFF79C40000-memory.dmp

Filesize
64KB

Download
memory/708-121-0x00007FFF79C30000-0x00007FFF79C40000-memory.dmp

Filesize
64KB

Download
memory/708-122-0x00007FFF9B130000-0x00007FFF9C21E000-memory.dmp

Filesize
16.9MB

Download
memory/708-123-0x00007FFF99230000-0x00007FFF9B125000-memory.dmp

Filesize
31.0MB

Download
memory/864-180-0x0000000000000000-mapping.dmp

Download
memory/2572-179-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads