599d603c93bf5cd03e3e8aa799a8b72652295a0f7fe4e600061670204af6b00e

General

Target

e62151ef095f34f439fdaa2b49ed85ab.xls
Size

285KB
MD5

e62151ef095f34f439fdaa2b49ed85ab
SHA1

5e3968aaa7aa8e28a1c1748ebc8befc76c5db8d4
SHA256

599d603c93bf5cd03e3e8aa799a8b72652295a0f7fe4e600061670204af6b00e
SHA512

d316ffe3d97cbeb16c1249e8fbd5d884f314812eac43ec0e916f3fe90ef5b47c8e99b45d0732e1b3963526f80037e868bea37729498b5d187d0446ab81a2df59
SSDEEP

3072:hLmn79y02k3//tPffqSRRRDLuTRXnPjAYnOEHEGjq4yWJWDecBGPfeZz1HHebx8v:27Y02k3//sJOEwdMYo8J8COw8

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 3 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

cmd.execmd.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	4444	4872	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4424	4872	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	5032	4872	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

NTFS ADS 1 IoCs

Processes:

EXCEL.EXE

description ioc process

File created C:\Users\Admin\AppData\Local\Temp\1C765E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

4872 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\1C765E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
4872	EXCEL.EXE
4872	EXCEL.EXE
4872	EXCEL.EXE
4872	EXCEL.EXE
4872	EXCEL.EXE
4872	EXCEL.EXE
4872	EXCEL.EXE
4872	EXCEL.EXE
4872	EXCEL.EXE
4872	EXCEL.EXE
4872	EXCEL.EXE
4872	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 4872 wrote to memory of 4444	4872	EXCEL.EXE	cmd.exe
PID 4872 wrote to memory of 4444	4872	EXCEL.EXE	cmd.exe
PID 4872 wrote to memory of 5032	4872	EXCEL.EXE	cmd.exe
PID 4872 wrote to memory of 5032	4872	EXCEL.EXE	cmd.exe
PID 4872 wrote to memory of 4424	4872	EXCEL.EXE	cmd.exe
PID 4872 wrote to memory of 4424	4872	EXCEL.EXE	cmd.exe
PID 4444 wrote to memory of 4308	4444	cmd.exe	attrib.exe
PID 4444 wrote to memory of 4308	4444	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

4308 attrib.exe

pid	process
4308	attrib.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\e62151ef095f34f439fdaa2b49ed85ab.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4872

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:4444

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:4308

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
2⤵
- Process spawned unexpected child process
PID:4424

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
2⤵
- Process spawned unexpected child process
PID:5032

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

1

T1158

Privilege Escalation

Defense Evasion

Hidden Files and Directories

1

T1158

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/4308-142-0x0000000000000000-mapping.dmp

Download
memory/4424-141-0x0000000000000000-mapping.dmp

Download
memory/4444-139-0x0000000000000000-mapping.dmp

Download
memory/4872-135-0x00007FFB5E990000-0x00007FFB5E9A0000-memory.dmp

Filesize
64KB

Download
memory/4872-136-0x00007FFB5E990000-0x00007FFB5E9A0000-memory.dmp

Filesize
64KB

Download
memory/4872-137-0x00007FFB5C930000-0x00007FFB5C940000-memory.dmp

Filesize
64KB

Download
memory/4872-138-0x00007FFB5C930000-0x00007FFB5C940000-memory.dmp

Filesize
64KB

Download
memory/4872-132-0x00007FFB5E990000-0x00007FFB5E9A0000-memory.dmp

Filesize
64KB

Download
memory/4872-134-0x00007FFB5E990000-0x00007FFB5E9A0000-memory.dmp

Filesize
64KB

Download
memory/4872-133-0x00007FFB5E990000-0x00007FFB5E9A0000-memory.dmp

Filesize
64KB

Download
memory/4872-144-0x00007FFB5E990000-0x00007FFB5E9A0000-memory.dmp

Filesize
64KB

Download
memory/4872-145-0x00007FFB5E990000-0x00007FFB5E9A0000-memory.dmp

Filesize
64KB

Download
memory/4872-146-0x00007FFB5E990000-0x00007FFB5E9A0000-memory.dmp

Filesize
64KB

Download
memory/4872-147-0x00007FFB5E990000-0x00007FFB5E9A0000-memory.dmp

Filesize
64KB

Download
memory/5032-140-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads