fa330a94a6b73e2458396e509688752bb02dc85af0e88798e703d2650644c0bf

General

Target

catalog-2108006509.xls
Size

367KB
MD5

4f99063e13647ee01483ed6275143f04
SHA1

b025c1c1ba4049342bf5d09bed1f648f993a3245
SHA256

0bdc34a774a349651649e01545e08f8b15593642da389063fcf6f7b9c580fcbd
SHA512

02136a3208f3b5fb432e0978d33d84708d0a741d437b5562ae1cbdcd9ec09c8471c3259cec2d21a3b8430755edc5c1b0c9301108c887432454a30427a6e4af77

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	3748	860	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3892	860	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

860 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE
860	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 860 wrote to memory of 3748	860	EXCEL.EXE	rundll32.exe
PID 860 wrote to memory of 3748	860	EXCEL.EXE	rundll32.exe
PID 860 wrote to memory of 3892	860	EXCEL.EXE	rundll32.exe
PID 860 wrote to memory of 3892	860	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-2108006509.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:860

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3748

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3892

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/860-114-0x00007FF6BBFB0000-0x00007FF6BF566000-memory.dmp

Filesize
53.7MB

Download
memory/860-115-0x00007FF9DCDF0000-0x00007FF9DCE00000-memory.dmp

Filesize
64KB

Download
memory/860-116-0x00007FF9DCDF0000-0x00007FF9DCE00000-memory.dmp

Filesize
64KB

Download
memory/860-117-0x00007FF9DCDF0000-0x00007FF9DCE00000-memory.dmp

Filesize
64KB

Download
memory/860-118-0x00007FF9DCDF0000-0x00007FF9DCE00000-memory.dmp

Filesize
64KB

Download
memory/860-119-0x00007FF9DCDF0000-0x00007FF9DCE00000-memory.dmp

Filesize
64KB

Download
memory/860-122-0x00007FF9FD980000-0x00007FF9FEA6E000-memory.dmp

Filesize
16.9MB

Download
memory/860-123-0x00007FF9FBA80000-0x00007FF9FD975000-memory.dmp

Filesize
31.0MB

Download
memory/3748-179-0x0000000000000000-mapping.dmp

Download
memory/3892-180-0x0000000000000000-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