b113acba7b518984666082dcdd2fddf18ad7fe76931bf2f92617bd7ba7ce3c21

General

Target

b113acba7b518984666082dcdd2fddf18ad7fe76931bf2f92617bd7ba7ce3c21.xls
Size

96KB
MD5

530cc3a75372b8daf4018775630f4b03
SHA1

5d0562633d777a4fac2d10187c71f9782e8dfc43
SHA256

b113acba7b518984666082dcdd2fddf18ad7fe76931bf2f92617bd7ba7ce3c21
SHA512

d1f475e2eab79c7e0ee43a6fc4cf67a48918156238cf17ae35ca2ae47c16082d478bb1611106c1373236b7a0f978795b719f3c21dfddfee8a7e4c5b721b57aee
SSDEEP

1536:YaaasnaVRJgAv/QsLrag4pGnuifzIgZ95Dt71WVbk2RPIzQ7ITkR62lpIhY7nJdT:YuWVbTuzQ7ITk9M2AJzXwV5km1

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	4824	2820	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	456	2820	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1152	2820	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 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
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	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\8DD65E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2820 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\8DD65E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
2820	EXCEL.EXE
2820	EXCEL.EXE
2820	EXCEL.EXE
2820	EXCEL.EXE
2820	EXCEL.EXE
2820	EXCEL.EXE
2820	EXCEL.EXE
2820	EXCEL.EXE
2820	EXCEL.EXE
2820	EXCEL.EXE
2820	EXCEL.EXE
2820	EXCEL.EXE
2820	EXCEL.EXE
2820	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 2820 wrote to memory of 4824	2820	EXCEL.EXE	cmd.exe
PID 2820 wrote to memory of 4824	2820	EXCEL.EXE	cmd.exe
PID 2820 wrote to memory of 1152	2820	EXCEL.EXE	cmd.exe
PID 2820 wrote to memory of 1152	2820	EXCEL.EXE	cmd.exe
PID 2820 wrote to memory of 456	2820	EXCEL.EXE	cmd.exe
PID 2820 wrote to memory of 456	2820	EXCEL.EXE	cmd.exe
PID 4824 wrote to memory of 996	4824	cmd.exe	attrib.exe
PID 4824 wrote to memory of 996	4824	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

996 attrib.exe

pid	process
996	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\b113acba7b518984666082dcdd2fddf18ad7fe76931bf2f92617bd7ba7ce3c21.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:2820

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:4824

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:996

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:456

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:1152

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/456-141-0x0000000000000000-mapping.dmp

Download
memory/996-142-0x0000000000000000-mapping.dmp

Download
memory/1152-140-0x0000000000000000-mapping.dmp

Download
memory/2820-144-0x0000029996616000-0x0000029996618000-memory.dmp

Filesize
8KB

Download
memory/2820-133-0x00007FFFACC30000-0x00007FFFACC40000-memory.dmp

Filesize
64KB

Download
memory/2820-137-0x00007FFFAA5D0000-0x00007FFFAA5E0000-memory.dmp

Filesize
64KB

Download
memory/2820-138-0x00007FFFAA5D0000-0x00007FFFAA5E0000-memory.dmp

Filesize
64KB

Download
memory/2820-135-0x00007FFFACC30000-0x00007FFFACC40000-memory.dmp

Filesize
64KB

Download
memory/2820-149-0x00007FFFACC30000-0x00007FFFACC40000-memory.dmp

Filesize
64KB

Download
memory/2820-134-0x00007FFFACC30000-0x00007FFFACC40000-memory.dmp

Filesize
64KB

Download
memory/2820-136-0x00007FFFACC30000-0x00007FFFACC40000-memory.dmp

Filesize
64KB

Download
memory/2820-143-0x0000029996616000-0x0000029996618000-memory.dmp

Filesize
8KB

Download
memory/2820-132-0x00007FFFACC30000-0x00007FFFACC40000-memory.dmp

Filesize
64KB

Download
memory/2820-146-0x00007FFFACC30000-0x00007FFFACC40000-memory.dmp

Filesize
64KB

Download
memory/2820-147-0x00007FFFACC30000-0x00007FFFACC40000-memory.dmp

Filesize
64KB

Download
memory/2820-148-0x00007FFFACC30000-0x00007FFFACC40000-memory.dmp

Filesize
64KB

Download
memory/4824-139-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads