cd60e1d6118e22064957380a8560864383002669727845475c3952a0a9d73976

General

Target

5ab773c02727b145ed54b44f2958ccb6.xls
Size

289KB
MD5

5ab773c02727b145ed54b44f2958ccb6
SHA1

1d53be4a8374d8d93d1ffce5b1883c576a1d4102
SHA256

cd60e1d6118e22064957380a8560864383002669727845475c3952a0a9d73976
SHA512

3678a908bc8b35486e5a5169e21674845ba0821a0bad0286a058422835ac35f2a0ece3150aa4486760a787e06abf954dbed5433aa6b9c527fc0963fef49b0b51
SSDEEP

3072:3P99KZ26S+xPffpSRRRDLuTUXnPjAYmOEHEGjq4yW9WDecBGPfeZh1HHebx8kAP7:/9YZ26S+PW5EwNMY68h8CO3

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	1520	5112	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3312	5112	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3368	5112	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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

5112 EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
5112	EXCEL.EXE
5112	EXCEL.EXE
5112	EXCEL.EXE
5112	EXCEL.EXE
5112	EXCEL.EXE
5112	EXCEL.EXE
5112	EXCEL.EXE
5112	EXCEL.EXE
5112	EXCEL.EXE
5112	EXCEL.EXE
5112	EXCEL.EXE
5112	EXCEL.EXE
5112	EXCEL.EXE
5112	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 5112 wrote to memory of 1520	5112	EXCEL.EXE	cmd.exe
PID 5112 wrote to memory of 1520	5112	EXCEL.EXE	cmd.exe
PID 5112 wrote to memory of 3368	5112	EXCEL.EXE	cmd.exe
PID 5112 wrote to memory of 3368	5112	EXCEL.EXE	cmd.exe
PID 5112 wrote to memory of 3312	5112	EXCEL.EXE	cmd.exe
PID 5112 wrote to memory of 3312	5112	EXCEL.EXE	cmd.exe
PID 1520 wrote to memory of 2248	1520	cmd.exe	attrib.exe
PID 1520 wrote to memory of 2248	1520	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

2248 attrib.exe

pid	process
2248	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\5ab773c02727b145ed54b44f2958ccb6.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5112

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:1520

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:2248

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:3312

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:3368

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/1520-139-0x0000000000000000-mapping.dmp

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memory/2248-142-0x0000000000000000-mapping.dmp

Download
memory/3312-141-0x0000000000000000-mapping.dmp

Download
memory/3368-140-0x0000000000000000-mapping.dmp

Download
memory/5112-135-0x00007FF8A9F90000-0x00007FF8A9FA0000-memory.dmp

Filesize
64KB

Download
memory/5112-137-0x00007FF8A76C0000-0x00007FF8A76D0000-memory.dmp

Filesize
64KB

Download
memory/5112-138-0x00007FF8A76C0000-0x00007FF8A76D0000-memory.dmp

Filesize
64KB

Download
memory/5112-136-0x00007FF8A9F90000-0x00007FF8A9FA0000-memory.dmp

Filesize
64KB

Download
memory/5112-132-0x00007FF8A9F90000-0x00007FF8A9FA0000-memory.dmp

Filesize
64KB

Download
memory/5112-134-0x00007FF8A9F90000-0x00007FF8A9FA0000-memory.dmp

Filesize
64KB

Download
memory/5112-133-0x00007FF8A9F90000-0x00007FF8A9FA0000-memory.dmp

Filesize
64KB

Download
memory/5112-144-0x00007FF8A9F90000-0x00007FF8A9FA0000-memory.dmp

Filesize
64KB

Download
memory/5112-145-0x00007FF8A9F90000-0x00007FF8A9FA0000-memory.dmp

Filesize
64KB

Download
memory/5112-146-0x00007FF8A9F90000-0x00007FF8A9FA0000-memory.dmp

Filesize
64KB

Download
memory/5112-147-0x00007FF8A9F90000-0x00007FF8A9FA0000-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