422b9d537dc3f46750f5f3b7953b65cf28f2207004f215ea8b4d5a2134628d29

General

Target

422b9d537dc3f46750f5f3b7953b65cf28f2207004f215ea8b4d5a2134628d29.xls
Size

88KB
MD5

a7977e110156520f5c0fcf811f23fe21
SHA1

5620352280c708c599a26887e125820581d1f01c
SHA256

422b9d537dc3f46750f5f3b7953b65cf28f2207004f215ea8b4d5a2134628d29
SHA512

0fb8c43972a5937bbe4d687ef09b283485fc255f90e2a67bb36039ab461051d5a912c525d6d27da611a2b5e5bbd388e6c5eb546a944896da205f1d9b871ba137
SSDEEP

1536:kcuu+d/jbqKV6+Z5wqC7U8UdB1gxv7yZmspH7+cclKiEZClsQ6NqTBun5oXq3KO3:+B1gxv7yZmspH7+cclKisQ6NqTBun5oL

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	2552	2760	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4528	2760	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4300	2760	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\05175E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2760 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\05175E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
2760	EXCEL.EXE
2760	EXCEL.EXE
2760	EXCEL.EXE
2760	EXCEL.EXE
2760	EXCEL.EXE
2760	EXCEL.EXE
2760	EXCEL.EXE
2760	EXCEL.EXE
2760	EXCEL.EXE
2760	EXCEL.EXE
2760	EXCEL.EXE
2760	EXCEL.EXE
2760	EXCEL.EXE
2760	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 2760 wrote to memory of 2552	2760	EXCEL.EXE	cmd.exe
PID 2760 wrote to memory of 2552	2760	EXCEL.EXE	cmd.exe
PID 2760 wrote to memory of 4528	2760	EXCEL.EXE	cmd.exe
PID 2760 wrote to memory of 4528	2760	EXCEL.EXE	cmd.exe
PID 2760 wrote to memory of 4300	2760	EXCEL.EXE	cmd.exe
PID 2760 wrote to memory of 4300	2760	EXCEL.EXE	cmd.exe
PID 2552 wrote to memory of 4216	2552	cmd.exe	attrib.exe
PID 2552 wrote to memory of 4216	2552	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

4216 attrib.exe

pid	process
4216	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\422b9d537dc3f46750f5f3b7953b65cf28f2207004f215ea8b4d5a2134628d29.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:2760

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:2552

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:4216

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:4528

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: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/2552-139-0x0000000000000000-mapping.dmp

Download
memory/2760-144-0x000001F9DEA5C000-0x000001F9DEA5E000-memory.dmp

Filesize
8KB

Download
memory/2760-147-0x00007FFD5C5D0000-0x00007FFD5C5E0000-memory.dmp

Filesize
64KB

Download
memory/2760-135-0x00007FFD5C5D0000-0x00007FFD5C5E0000-memory.dmp

Filesize
64KB

Download
memory/2760-136-0x00007FFD5C5D0000-0x00007FFD5C5E0000-memory.dmp

Filesize
64KB

Download
memory/2760-149-0x00007FFD5C5D0000-0x00007FFD5C5E0000-memory.dmp

Filesize
64KB

Download
memory/2760-138-0x00007FFD5A380000-0x00007FFD5A390000-memory.dmp

Filesize
64KB

Download
memory/2760-133-0x00007FFD5C5D0000-0x00007FFD5C5E0000-memory.dmp

Filesize
64KB

Download
memory/2760-134-0x00007FFD5C5D0000-0x00007FFD5C5E0000-memory.dmp

Filesize
64KB

Download
memory/2760-137-0x00007FFD5A380000-0x00007FFD5A390000-memory.dmp

Filesize
64KB

Download
memory/2760-142-0x000001F9DEA5C000-0x000001F9DEA5E000-memory.dmp

Filesize
8KB

Download
memory/2760-148-0x00007FFD5C5D0000-0x00007FFD5C5E0000-memory.dmp

Filesize
64KB

Download
memory/2760-132-0x00007FFD5C5D0000-0x00007FFD5C5E0000-memory.dmp

Filesize
64KB

Download
memory/2760-146-0x00007FFD5C5D0000-0x00007FFD5C5E0000-memory.dmp

Filesize
64KB

Download
memory/4216-143-0x0000000000000000-mapping.dmp

Download
memory/4300-141-0x0000000000000000-mapping.dmp

Download
memory/4528-140-0x0000000000000000-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