9da89b3ccaddc54aee4e70afeecf02900666fb930b404999c91e9e2ad96586df

General

Target

catalog-2000415751.xls
Size

367KB
MD5

4b814c69cf6d994300b87271bc1ee91f
SHA1

b01bce93377816a30f52f607fa0132f08bc95fd6
SHA256

14f9ac0c6073b33f3798882e8512672bc457c0ad87e47d8bb9f6a04e8d878ab5
SHA512

eba72e087980c3236f05452aa98607aed2afdacf145778f7b9e63c9ed980d9fbcc470e71f26c3064e183de0e53185c9ed5ba203a495a6ba0aa517d9989cdf686

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	3760	3456	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2692	3456	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 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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	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

3456 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
3456	EXCEL.EXE
3456	EXCEL.EXE
3456	EXCEL.EXE
3456	EXCEL.EXE
3456	EXCEL.EXE
3456	EXCEL.EXE
3456	EXCEL.EXE
3456	EXCEL.EXE
3456	EXCEL.EXE
3456	EXCEL.EXE
3456	EXCEL.EXE
3456	EXCEL.EXE
3456	EXCEL.EXE
3456	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3456 wrote to memory of 3760	3456	EXCEL.EXE	rundll32.exe
PID 3456 wrote to memory of 3760	3456	EXCEL.EXE	rundll32.exe
PID 3456 wrote to memory of 2692	3456	EXCEL.EXE	rundll32.exe
PID 3456 wrote to memory of 2692	3456	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-2000415751.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3456

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3760

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:2692

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/2692-180-0x0000000000000000-mapping.dmp

Download
memory/3456-114-0x00007FF6F0450000-0x00007FF6F3A06000-memory.dmp

Filesize
53.7MB

Download
memory/3456-115-0x00007FFBF09B0000-0x00007FFBF09C0000-memory.dmp

Filesize
64KB

Download
memory/3456-116-0x00007FFBF09B0000-0x00007FFBF09C0000-memory.dmp

Filesize
64KB

Download
memory/3456-117-0x00007FFBF09B0000-0x00007FFBF09C0000-memory.dmp

Filesize
64KB

Download
memory/3456-118-0x00007FFBF09B0000-0x00007FFBF09C0000-memory.dmp

Filesize
64KB

Download
memory/3456-122-0x00007FFBF09B0000-0x00007FFBF09C0000-memory.dmp

Filesize
64KB

Download
memory/3456-121-0x00007FFC114E0000-0x00007FFC125CE000-memory.dmp

Filesize
16.9MB

Download
memory/3456-123-0x00007FFC0F5E0000-0x00007FFC114D5000-memory.dmp

Filesize
31.0MB

Download
memory/3760-179-0x0000000000000000-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