0b8ce1cd004ccb37f3b7d1289601a48350de8d4a0fee3345f01cd87fb7bef6e5

General

Target

0b8ce1cd004ccb37f3b7d1289601a48350de8d4a0fee3345f01cd87fb7bef6e5.xls
Size

100KB
MD5

e4da8c809ba9d566b6e4f5401c5b41cf
SHA1

923b9629da93c5e69fbcf749c17d2864a0f51515
SHA256

0b8ce1cd004ccb37f3b7d1289601a48350de8d4a0fee3345f01cd87fb7bef6e5
SHA512

71d233894a20519b5d1e186774d56a8d1acacec3b3b6b38a8062df55ff8e6b75a6fd3b12a74885663ceebb44402204016310ee728f2fc320bfb98d8597731613
SSDEEP

1536:KpVrvHMGqSjDUTHY4BjryV/ZZ95ADXn0nWVbrzQ7ITkSN1GQA23KsY7nJdMcOu4W:CYeWVbrzQ7ITks8Oa4BzK

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	1144	1612	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	3552	1612	cmd.exe	EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4140	1612	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\9E875E00\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1612 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\9E875E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

Processes:

EXCEL.EXE

pid	process
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE
1612	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 1612 wrote to memory of 1144	1612	EXCEL.EXE	cmd.exe
PID 1612 wrote to memory of 1144	1612	EXCEL.EXE	cmd.exe
PID 1612 wrote to memory of 3552	1612	EXCEL.EXE	cmd.exe
PID 1612 wrote to memory of 3552	1612	EXCEL.EXE	cmd.exe
PID 1612 wrote to memory of 4140	1612	EXCEL.EXE	cmd.exe
PID 1612 wrote to memory of 4140	1612	EXCEL.EXE	cmd.exe
PID 1144 wrote to memory of 2348	1144	cmd.exe	attrib.exe
PID 1144 wrote to memory of 2348	1144	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

2348 attrib.exe

pid	process
2348	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\0b8ce1cd004ccb37f3b7d1289601a48350de8d4a0fee3345f01cd87fb7bef6e5.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:1612

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:1144

C:\Windows\system32\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:2348

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:3552

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:4140

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/1144-139-0x0000000000000000-mapping.dmp

Download
memory/1612-138-0x00007FFD16840000-0x00007FFD16850000-memory.dmp

Filesize
64KB

Download
memory/1612-144-0x00007FFD189F0000-0x00007FFD18A00000-memory.dmp

Filesize
64KB

Download
memory/1612-135-0x00007FFD189F0000-0x00007FFD18A00000-memory.dmp

Filesize
64KB

Download
memory/1612-136-0x00007FFD189F0000-0x00007FFD18A00000-memory.dmp

Filesize
64KB

Download
memory/1612-137-0x00007FFD16840000-0x00007FFD16850000-memory.dmp

Filesize
64KB

Download
memory/1612-132-0x00007FFD189F0000-0x00007FFD18A00000-memory.dmp

Filesize
64KB

Download
memory/1612-133-0x00007FFD189F0000-0x00007FFD18A00000-memory.dmp

Filesize
64KB

Download
memory/1612-147-0x00007FFD189F0000-0x00007FFD18A00000-memory.dmp

Filesize
64KB

Download
memory/1612-145-0x00007FFD189F0000-0x00007FFD18A00000-memory.dmp

Filesize
64KB

Download
memory/1612-146-0x00007FFD189F0000-0x00007FFD18A00000-memory.dmp

Filesize
64KB

Download
memory/1612-134-0x00007FFD189F0000-0x00007FFD18A00000-memory.dmp

Filesize
64KB

Download
memory/2348-142-0x0000000000000000-mapping.dmp

Download
memory/3552-140-0x0000000000000000-mapping.dmp

Download
memory/4140-141-0x0000000000000000-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