b8ecb1dd6b410011cfd634ebfdc483952ffb6547d47aaa50f9761c6a056990e0

General

Target

b8ecb1dd6b410011cfd634ebfdc483952ffb6547d47aaa50f9761c6a056990e0.xls
Size

122KB
MD5

6be43dc72cc636a2bca94fc13b7ca4ad
SHA1

3a9d19148de2fb228723b33b717111674531449d
SHA256

b8ecb1dd6b410011cfd634ebfdc483952ffb6547d47aaa50f9761c6a056990e0
SHA512

a6f7f7637da55c2afc760e5d5480f7fff4d8a60a850049b30b56e270c2a879f8b68f3b236db6fb7be2c6f17275ed8cd23239a2f2dc6a435f269d440691d28ede
SSDEEP

3072:7sl6Nc7yRzs1H75wkZUgsPI4ukoRWGNvZPcrWVbrTQ7IHqkchYX1qi58:Il6Nc7yRzs1H75wkZUgsPI4ukoRWGNv3

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.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2036	1420	cmd.exe	79
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4568	1420	cmd.exe	79
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	684	1420	cmd.exe	79

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

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\C0575E00\:Zone.Identifier:$DATA	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1420	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
1420	EXCEL.EXE
1420	EXCEL.EXE
1420	EXCEL.EXE
1420	EXCEL.EXE
1420	EXCEL.EXE
1420	EXCEL.EXE
1420	EXCEL.EXE
1420	EXCEL.EXE
1420	EXCEL.EXE
1420	EXCEL.EXE
1420	EXCEL.EXE
1420	EXCEL.EXE
1420	EXCEL.EXE
1420	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1420 wrote to memory of 2036	1420	EXCEL.EXE	82
PID 1420 wrote to memory of 2036	1420	EXCEL.EXE	82
PID 1420 wrote to memory of 684	1420	EXCEL.EXE	86
PID 1420 wrote to memory of 684	1420	EXCEL.EXE	86
PID 1420 wrote to memory of 4568	1420	EXCEL.EXE	85
PID 1420 wrote to memory of 4568	1420	EXCEL.EXE	85
PID 2036 wrote to memory of 4964	2036	cmd.exe	88
PID 2036 wrote to memory of 4964	2036	cmd.exe	88

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
4964	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\b8ecb1dd6b410011cfd634ebfdc483952ffb6547d47aaa50f9761c6a056990e0.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:1420
- 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:2036
- - C:\Windows\system32\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - Views/modifies file attributes
    PID:4964
- 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:4568
- 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:684

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1420-147-0x0000022D2F390000-0x0000022D2F392000-memory.dmp

Filesize
8KB

Download
memory/1420-142-0x0000022D2F390000-0x0000022D2F392000-memory.dmp

Filesize
8KB

Download
memory/1420-138-0x00007FFB1B8F0000-0x00007FFB1B900000-memory.dmp

Filesize
64KB

Download
memory/1420-139-0x00007FFB1B8F0000-0x00007FFB1B900000-memory.dmp

Filesize
64KB

Download
memory/1420-140-0x00007FFB19520000-0x00007FFB19530000-memory.dmp

Filesize
64KB

Download
memory/1420-141-0x00007FFB19520000-0x00007FFB19530000-memory.dmp

Filesize
64KB

Download
memory/1420-137-0x00007FFB1B8F0000-0x00007FFB1B900000-memory.dmp

Filesize
64KB

Download
memory/1420-151-0x00007FFB1B8F0000-0x00007FFB1B900000-memory.dmp

Filesize
64KB

Download
memory/1420-136-0x00007FFB1B8F0000-0x00007FFB1B900000-memory.dmp

Filesize
64KB

Download
memory/1420-150-0x00007FFB1B8F0000-0x00007FFB1B900000-memory.dmp

Filesize
64KB

Download
memory/1420-152-0x00007FFB1B8F0000-0x00007FFB1B900000-memory.dmp

Filesize
64KB

Download
memory/1420-135-0x00007FFB1B8F0000-0x00007FFB1B900000-memory.dmp

Filesize
64KB

Download
memory/1420-149-0x00007FFB1B8F0000-0x00007FFB1B900000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads