7ed87b2de5a5fc84bc6892ee5f5b0aed47a49f4aa716569c072f6edc1e105507

General

Target

catalog-2116408246.xls
Size

367KB
MD5

f2ab3188a76f10a71956ea4443e9e745
SHA1

a000b586d26b7a2a59d9b41751a206c478296ea9
SHA256

dcc1da3532db416111d035a0ec2b8c66977e9efe87495ce342db41204d99c56c
SHA512

7a49f47e63c30f8a9180fd4ae5acc6a569048793984de655b76a98f3b061aa02c1b0e04217934545b58379bb3a5171e78d0542cbbe85622c2e71bf1f932213a0

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	3200	672	rundll32.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	848	672	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

672 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
672	EXCEL.EXE
672	EXCEL.EXE
672	EXCEL.EXE
672	EXCEL.EXE
672	EXCEL.EXE
672	EXCEL.EXE
672	EXCEL.EXE
672	EXCEL.EXE
672	EXCEL.EXE
672	EXCEL.EXE
672	EXCEL.EXE
672	EXCEL.EXE
672	EXCEL.EXE
672	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 672 wrote to memory of 3200	672	EXCEL.EXE	rundll32.exe
PID 672 wrote to memory of 3200	672	EXCEL.EXE	rundll32.exe
PID 672 wrote to memory of 848	672	EXCEL.EXE	rundll32.exe
PID 672 wrote to memory of 848	672	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-2116408246.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:672

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:3200

C:\Windows\SYSTEM32\rundll32.exe
rundll32 ..\tuti.rut1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:848

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/672-114-0x00007FF74E7D0000-0x00007FF751D86000-memory.dmp

Filesize
53.7MB

Download
memory/672-115-0x00007FF8ACF90000-0x00007FF8ACFA0000-memory.dmp

Filesize
64KB

Download
memory/672-116-0x00007FF8ACF90000-0x00007FF8ACFA0000-memory.dmp

Filesize
64KB

Download
memory/672-117-0x00007FF8ACF90000-0x00007FF8ACFA0000-memory.dmp

Filesize
64KB

Download
memory/672-118-0x00007FF8ACF90000-0x00007FF8ACFA0000-memory.dmp

Filesize
64KB

Download
memory/672-119-0x00007FF8ACF90000-0x00007FF8ACFA0000-memory.dmp

Filesize
64KB

Download
memory/672-122-0x00007FF8CD890000-0x00007FF8CE97E000-memory.dmp

Filesize
16.9MB

Download
memory/672-123-0x00007FF8CB990000-0x00007FF8CD885000-memory.dmp

Filesize
31.0MB

Download
memory/848-180-0x0000000000000000-mapping.dmp

Download
memory/3200-179-0x0000000000000000-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