8461a810d08fc9918a79ea4e5d510eca3dde43f7076e95ecf6cb3964441661ed

General

Target

catalog-2015381752.xls
Size

367KB
MD5

2b0059a2d746cbb36071a3549d1b0aee
SHA1

0d35e67aee4c2a9b8961989f2a5d7db96d34667d
SHA256

f26af7447fceee713d76b44cd568935348d56e564e9088c175c14a85414bbe9e
SHA512

e3bcea63b7b87369d925e8fe7f323564ae11db6a32b28275d8448aa49a8ed93c1e2b081c8b6e08b4a8f17175fd0698f73aec748110e5cf0d58e8dab258312d4d

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	1096	508	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1092	508	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

508 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
508	EXCEL.EXE
508	EXCEL.EXE
508	EXCEL.EXE
508	EXCEL.EXE
508	EXCEL.EXE
508	EXCEL.EXE
508	EXCEL.EXE
508	EXCEL.EXE
508	EXCEL.EXE
508	EXCEL.EXE
508	EXCEL.EXE
508	EXCEL.EXE
508	EXCEL.EXE
508	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 508 wrote to memory of 1096	508	EXCEL.EXE	rundll32.exe
PID 508 wrote to memory of 1096	508	EXCEL.EXE	rundll32.exe
PID 508 wrote to memory of 1092	508	EXCEL.EXE	rundll32.exe
PID 508 wrote to memory of 1092	508	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-2015381752.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:508

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1096

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1092

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

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Downloads

memory/508-114-0x00007FF79CD30000-0x00007FF7A02E6000-memory.dmp

Filesize
53.7MB

Download
memory/508-115-0x00007FF94EEB0000-0x00007FF94EEC0000-memory.dmp

Filesize
64KB

Download
memory/508-116-0x00007FF94EEB0000-0x00007FF94EEC0000-memory.dmp

Filesize
64KB

Download
memory/508-118-0x00007FF94EEB0000-0x00007FF94EEC0000-memory.dmp

Filesize
64KB

Download
memory/508-117-0x00007FF94EEB0000-0x00007FF94EEC0000-memory.dmp

Filesize
64KB

Download
memory/508-121-0x00007FF96F780000-0x00007FF97086E000-memory.dmp

Filesize
16.9MB

Download
memory/508-122-0x00007FF94EEB0000-0x00007FF94EEC0000-memory.dmp

Filesize
64KB

Download
memory/508-123-0x000001AB00000000-0x000001AB01EF5000-memory.dmp

Filesize
31.0MB

Download
memory/1092-180-0x0000000000000000-mapping.dmp

Download
memory/1096-179-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads