79c710035d6c84916c7a6bd307e46e7ffe83c45fa5528742382163cc820f069c

General

Target

catalog-2020881978.xls
Size

367KB
MD5

5a2568db8e7c6a6ca1d5fa3fa0551fbd
SHA1

407b216f063b697c7e7a11a0bdff3aee0db9a4c2
SHA256

959bf91990f85486ed20a9107aa06a661d11e4acebfebca1aa1e50f96f3b446b
SHA512

57479d7287bf0252c24287c6c4526439618a4aaefcf57f380c3f5826f3c1bb224d8fed6ab07153e0bea8e68f4a6207a7dbd4e2be9b56551cb4e7466aa21cf3db

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	3456	1928	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3096	1928	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

1928 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
1928	EXCEL.EXE
1928	EXCEL.EXE
1928	EXCEL.EXE
1928	EXCEL.EXE
1928	EXCEL.EXE
1928	EXCEL.EXE
1928	EXCEL.EXE
1928	EXCEL.EXE
1928	EXCEL.EXE
1928	EXCEL.EXE
1928	EXCEL.EXE
1928	EXCEL.EXE
1928	EXCEL.EXE
1928	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1928 wrote to memory of 3456	1928	EXCEL.EXE	rundll32.exe
PID 1928 wrote to memory of 3456	1928	EXCEL.EXE	rundll32.exe
PID 1928 wrote to memory of 3096	1928	EXCEL.EXE	rundll32.exe
PID 1928 wrote to memory of 3096	1928	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-2020881978.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1928

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3456

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3096

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/1928-114-0x00007FF6F5430000-0x00007FF6F89E6000-memory.dmp

Filesize
53.7MB

Download
memory/1928-116-0x00007FF810580000-0x00007FF810590000-memory.dmp

Filesize
64KB

Download
memory/1928-115-0x00007FF810580000-0x00007FF810590000-memory.dmp

Filesize
64KB

Download
memory/1928-118-0x00007FF810580000-0x00007FF810590000-memory.dmp

Filesize
64KB

Download
memory/1928-117-0x00007FF810580000-0x00007FF810590000-memory.dmp

Filesize
64KB

Download
memory/1928-122-0x00007FF810580000-0x00007FF810590000-memory.dmp

Filesize
64KB

Download
memory/1928-121-0x00007FF8307F0000-0x00007FF8318DE000-memory.dmp

Filesize
16.9MB

Download
memory/1928-123-0x00007FF82E8F0000-0x00007FF8307E5000-memory.dmp

Filesize
31.0MB

Download
memory/3096-180-0x0000000000000000-mapping.dmp

Download
memory/3456-179-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads