c1cd69fc3732c7ea9367a29c1c8e11b1da20d198206824b25853205435342865

General

Target

catalog-1984326870.xls
Size

367KB
MD5

ac4c199d9b5c0a440f44a9c0a3687e34
SHA1

43b155c9687ce4c9c1764644ee6a38014057b89b
SHA256

33457a213d130dc99a596e1374edd16414e61cd67377d2134bfd463f94b77c01
SHA512

9f792d920c06bd9affdc3eb9861488f521de1e3bd34202332cf54cf84240947be68ea57bd6fa60a7c0c517a7be789b3a649c30aab1503463888427b31b4c96ee

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	1304	636	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1736	636	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

636 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
636	EXCEL.EXE
636	EXCEL.EXE
636	EXCEL.EXE
636	EXCEL.EXE
636	EXCEL.EXE
636	EXCEL.EXE
636	EXCEL.EXE
636	EXCEL.EXE
636	EXCEL.EXE
636	EXCEL.EXE
636	EXCEL.EXE
636	EXCEL.EXE
636	EXCEL.EXE
636	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 636 wrote to memory of 1304	636	EXCEL.EXE	rundll32.exe
PID 636 wrote to memory of 1304	636	EXCEL.EXE	rundll32.exe
PID 636 wrote to memory of 1736	636	EXCEL.EXE	rundll32.exe
PID 636 wrote to memory of 1736	636	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-1984326870.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:636

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1304

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1736

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

Replay Monitor

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Downloads

memory/636-114-0x00007FF627310000-0x00007FF62A8C6000-memory.dmp

Filesize
53.7MB

Download
memory/636-115-0x00007FFF50D30000-0x00007FFF50D40000-memory.dmp

Filesize
64KB

Download
memory/636-116-0x00007FFF50D30000-0x00007FFF50D40000-memory.dmp

Filesize
64KB

Download
memory/636-117-0x00007FFF50D30000-0x00007FFF50D40000-memory.dmp

Filesize
64KB

Download
memory/636-118-0x00007FFF50D30000-0x00007FFF50D40000-memory.dmp

Filesize
64KB

Download
memory/636-121-0x00007FFF50D30000-0x00007FFF50D40000-memory.dmp

Filesize
64KB

Download
memory/636-122-0x00007FFF714C0000-0x00007FFF725AE000-memory.dmp

Filesize
16.9MB

Download
memory/636-123-0x00007FFF6F5C0000-0x00007FFF714B5000-memory.dmp

Filesize
31.0MB

Download
memory/1304-179-0x0000000000000000-mapping.dmp

Download
memory/1736-180-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads