6a85bb6dd317fcc11de29c8515d1ea380cc1df8263ede0df939e20bd391c061f

General

Target

catalog-2067790092.xls
Size

367KB
MD5

0e233d233fe28fdec10cc9840c1e347e
SHA1

79b4f1fb4d46a42b21a47a07626dca0944ecf243
SHA256

ba0435c6e249638889beae55cce35a295588435c83d4467d2e01422e0e10e6a6
SHA512

d72164de9d8f48a5e2bc710f568ee4d4b10c2c9754359c1d418256a24ddaa4bb36aeeda08abc71e59d7ad2af13246713cc1ce9d51e666c87fc15f4b028f929ea

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	4064	364	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1320	364	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

364 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
364	EXCEL.EXE
364	EXCEL.EXE
364	EXCEL.EXE
364	EXCEL.EXE
364	EXCEL.EXE
364	EXCEL.EXE
364	EXCEL.EXE
364	EXCEL.EXE
364	EXCEL.EXE
364	EXCEL.EXE
364	EXCEL.EXE
364	EXCEL.EXE
364	EXCEL.EXE
364	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 364 wrote to memory of 4064	364	EXCEL.EXE	rundll32.exe
PID 364 wrote to memory of 4064	364	EXCEL.EXE	rundll32.exe
PID 364 wrote to memory of 1320	364	EXCEL.EXE	rundll32.exe
PID 364 wrote to memory of 1320	364	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-2067790092.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:364

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:4064

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1320

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/364-114-0x00007FF6A1C20000-0x00007FF6A51D6000-memory.dmp

Filesize
53.7MB

Download
memory/364-115-0x00007FFEB3A10000-0x00007FFEB3A20000-memory.dmp

Filesize
64KB

Download
memory/364-116-0x00007FFEB3A10000-0x00007FFEB3A20000-memory.dmp

Filesize
64KB

Download
memory/364-117-0x00007FFEB3A10000-0x00007FFEB3A20000-memory.dmp

Filesize
64KB

Download
memory/364-118-0x00007FFEB3A10000-0x00007FFEB3A20000-memory.dmp

Filesize
64KB

Download
memory/364-121-0x00007FFEB3A10000-0x00007FFEB3A20000-memory.dmp

Filesize
64KB

Download
memory/364-122-0x00007FFED4AA0000-0x00007FFED5B8E000-memory.dmp

Filesize
16.9MB

Download
memory/364-123-0x00007FFED2BA0000-0x00007FFED4A95000-memory.dmp

Filesize
31.0MB

Download
memory/1320-180-0x0000000000000000-mapping.dmp

Download
memory/4064-179-0x0000000000000000-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