3b122aeceaa8b0e3f3283a69b819a96ab707e9427a15625ace138c4c7d89d570

General

Target

3b122aeceaa8b0e3f3283a69b819a96ab707e9427a15625ace138c4c7d89d570.xls
Size

83KB
MD5

4ba0115d627adcaedec76f2c0c5f3eb5
SHA1

d8b74cc8b74767a65c1605e2c24df1d03b590627
SHA256

3b122aeceaa8b0e3f3283a69b819a96ab707e9427a15625ace138c4c7d89d570
SHA512

3da194e332f8571f082c927ac248cf3499820bcb042f5bf1ee236aebf439e2f05110544763deec7ec5aa03c8962a331338f5376155e27118e778f383382d5d38
SSDEEP

1536:gerrrr2RRQc7wKEt2jcc0lbxOvTgZWIhY7nJdJoOd7cJtXwHIDF:x2jcc0lbxOrm2AJtXwoF

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	3392	2100	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2820	2100	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4300	2100	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\1DF65E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2100 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\1DF65E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
2100	EXCEL.EXE
2100	EXCEL.EXE
2100	EXCEL.EXE
2100	EXCEL.EXE
2100	EXCEL.EXE
2100	EXCEL.EXE
2100	EXCEL.EXE
2100	EXCEL.EXE
2100	EXCEL.EXE
2100	EXCEL.EXE
2100	EXCEL.EXE
2100	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 2100 wrote to memory of 3392	2100	EXCEL.EXE	cmd.exe
PID 2100 wrote to memory of 3392	2100	EXCEL.EXE	cmd.exe
PID 2100 wrote to memory of 4300	2100	EXCEL.EXE	cmd.exe
PID 2100 wrote to memory of 4300	2100	EXCEL.EXE	cmd.exe
PID 2100 wrote to memory of 2820	2100	EXCEL.EXE	cmd.exe
PID 2100 wrote to memory of 2820	2100	EXCEL.EXE	cmd.exe
PID 3392 wrote to memory of 2804	3392	cmd.exe	attrib.exe
PID 3392 wrote to memory of 2804	3392	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

2804 attrib.exe

pid	process
2804	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\3b122aeceaa8b0e3f3283a69b819a96ab707e9427a15625ace138c4c7d89d570.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:2100

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:3392

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:2804

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:2820

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:4300

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

Replay Monitor

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Downloads

memory/2100-144-0x0000028E78BC7000-0x0000028E78BC9000-memory.dmp

Filesize
8KB

Download
memory/2100-151-0x00007FFBBAEF0000-0x00007FFBBAF00000-memory.dmp

Filesize
64KB

Download
memory/2100-150-0x00007FFBBAEF0000-0x00007FFBBAF00000-memory.dmp

Filesize
64KB

Download
memory/2100-135-0x00007FFBBAEF0000-0x00007FFBBAF00000-memory.dmp

Filesize
64KB

Download
memory/2100-136-0x00007FFBBAEF0000-0x00007FFBBAF00000-memory.dmp

Filesize
64KB

Download
memory/2100-137-0x00007FFBB8690000-0x00007FFBB86A0000-memory.dmp

Filesize
64KB

Download
memory/2100-138-0x00007FFBB8690000-0x00007FFBB86A0000-memory.dmp

Filesize
64KB

Download
memory/2100-149-0x00007FFBBAEF0000-0x00007FFBBAF00000-memory.dmp

Filesize
64KB

Download
memory/2100-134-0x00007FFBBAEF0000-0x00007FFBBAF00000-memory.dmp

Filesize
64KB

Download
memory/2100-133-0x00007FFBBAEF0000-0x00007FFBBAF00000-memory.dmp

Filesize
64KB

Download
memory/2100-143-0x0000028E78A09000-0x0000028E78A0B000-memory.dmp

Filesize
8KB

Download
memory/2100-148-0x00007FFBBAEF0000-0x00007FFBBAF00000-memory.dmp

Filesize
64KB

Download
memory/2100-132-0x00007FFBBAEF0000-0x00007FFBBAF00000-memory.dmp

Filesize
64KB

Download
memory/2100-145-0x0000028E78A09000-0x0000028E78A0B000-memory.dmp

Filesize
8KB

Download
memory/2100-146-0x0000028E78BC7000-0x0000028E78BC9000-memory.dmp

Filesize
8KB

Download
memory/2804-142-0x0000000000000000-mapping.dmp

Download
memory/2820-141-0x0000000000000000-mapping.dmp

Download
memory/3392-139-0x0000000000000000-mapping.dmp

Download
memory/4300-140-0x0000000000000000-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