ec171b75af63ea52f84db80fbecab1444291731cfdb2a996f91dd120fb7e93a4

General

Target

catalog-1964910546.xls
Size

367KB
MD5

63186ef7d86ae1aeba36979bc857435a
SHA1

ebe3601b4880964ca69439a708f8778c0905e1bf
SHA256

0c5dd93384b5274f95c10a857b49d8d595e1f1b8ce7ed59b18027b7d29471814
SHA512

12ed95aab677a2f486ff91a07c975392ff09da6925c8e94b82a3605f39a5bd2ff70e10f365a73ed7eddd7fc867319b598b1dfd786f6576ee473890ad09b653b7

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	3784	3724	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2404	3724	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

3724 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
3724	EXCEL.EXE
3724	EXCEL.EXE
3724	EXCEL.EXE
3724	EXCEL.EXE
3724	EXCEL.EXE
3724	EXCEL.EXE
3724	EXCEL.EXE
3724	EXCEL.EXE
3724	EXCEL.EXE
3724	EXCEL.EXE
3724	EXCEL.EXE
3724	EXCEL.EXE
3724	EXCEL.EXE
3724	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3724 wrote to memory of 3784	3724	EXCEL.EXE	rundll32.exe
PID 3724 wrote to memory of 3784	3724	EXCEL.EXE	rundll32.exe
PID 3724 wrote to memory of 2404	3724	EXCEL.EXE	rundll32.exe
PID 3724 wrote to memory of 2404	3724	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-1964910546.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3724

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3784

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:2404

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/2404-180-0x0000000000000000-mapping.dmp

Download
memory/3724-114-0x00007FF7EDC60000-0x00007FF7F1216000-memory.dmp

Filesize
53.7MB

Download
memory/3724-115-0x00007FFA247C0000-0x00007FFA247D0000-memory.dmp

Filesize
64KB

Download
memory/3724-116-0x00007FFA247C0000-0x00007FFA247D0000-memory.dmp

Filesize
64KB

Download
memory/3724-118-0x00007FFA247C0000-0x00007FFA247D0000-memory.dmp

Filesize
64KB

Download
memory/3724-117-0x00007FFA247C0000-0x00007FFA247D0000-memory.dmp

Filesize
64KB

Download
memory/3724-121-0x00007FFA247C0000-0x00007FFA247D0000-memory.dmp

Filesize
64KB

Download
memory/3724-122-0x00007FFA44D80000-0x00007FFA45E6E000-memory.dmp

Filesize
16.9MB

Download
memory/3724-123-0x000002656EAC0000-0x00000265709B5000-memory.dmp

Filesize
31.0MB

Download
memory/3784-179-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads