cb5ed7db9aaa4e5e64b4071718b4f9f5d362a678dff212e34f9f7ee155d4dbeb

General

Target

cb5ed7db9aaa4e5e64b4071718b4f9f5d362a678dff212e34f9f7ee155d4dbeb.xls
Size

88KB
MD5

6e1afa6090e9716363e7bda7ac194daf
SHA1

efcfab229662d1f3d1e69d4cdff25ed73b256165
SHA256

cb5ed7db9aaa4e5e64b4071718b4f9f5d362a678dff212e34f9f7ee155d4dbeb
SHA512

9b215b146bcee347b0302348ce033a65013a5047844994e5271eba0f28363950119073d727a0e61870ceba40b7b54b4685d603892b0b7d4b764cbc966d175a1b
SSDEEP

1536:FtttgRi1nrCZpCxmx2jcc0lbxOvTgZFDhY7nJdJoOdLJwXwGT/:tCP2jcc0lbxOrQ2rJwXwY/

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	5100	5012	cmd.exe	79
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	2448	5012	cmd.exe	79
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	4288	5012	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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
5012	EXCEL.EXE

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
5012	EXCEL.EXE
5012	EXCEL.EXE
5012	EXCEL.EXE
5012	EXCEL.EXE
5012	EXCEL.EXE
5012	EXCEL.EXE
5012	EXCEL.EXE
5012	EXCEL.EXE
5012	EXCEL.EXE
5012	EXCEL.EXE
5012	EXCEL.EXE
5012	EXCEL.EXE
5012	EXCEL.EXE
5012	EXCEL.EXE

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 5012 wrote to memory of 1004	5012	EXCEL.EXE	86
PID 5012 wrote to memory of 1004	5012	EXCEL.EXE	86
PID 5012 wrote to memory of 5100	5012	EXCEL.EXE	92
PID 5012 wrote to memory of 5100	5012	EXCEL.EXE	92
PID 5012 wrote to memory of 2448	5012	EXCEL.EXE	93
PID 5012 wrote to memory of 2448	5012	EXCEL.EXE	93
PID 5012 wrote to memory of 4288	5012	EXCEL.EXE	96
PID 5012 wrote to memory of 4288	5012	EXCEL.EXE	96
PID 5100 wrote to memory of 5076	5100	cmd.exe	98
PID 5100 wrote to memory of 5076	5100	cmd.exe	98

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
5076	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\cb5ed7db9aaa4e5e64b4071718b4f9f5d362a678dff212e34f9f7ee155d4dbeb.xls"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:5012
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:1004
- 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:5100
- - C:\Windows\system32\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    3⤵
    - Views/modifies file attributes
    PID:5076
- 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:2448
- 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:4288

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k PrintWorkflow -s PrintWorkflowUserSvc
1⤵
PID:1080

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

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Downloads

memory/5012-145-0x00007FF85CAD0000-0x00007FF85CAE0000-memory.dmp

Filesize
64KB

Download
memory/5012-136-0x00007FF85CAD0000-0x00007FF85CAE0000-memory.dmp

Filesize
64KB

Download
memory/5012-137-0x00007FF85A490000-0x00007FF85A4A0000-memory.dmp

Filesize
64KB

Download
memory/5012-138-0x00007FF85A490000-0x00007FF85A4A0000-memory.dmp

Filesize
64KB

Download
memory/5012-135-0x00007FF85CAD0000-0x00007FF85CAE0000-memory.dmp

Filesize
64KB

Download
memory/5012-134-0x00007FF85CAD0000-0x00007FF85CAE0000-memory.dmp

Filesize
64KB

Download
memory/5012-133-0x00007FF85CAD0000-0x00007FF85CAE0000-memory.dmp

Filesize
64KB

Download
memory/5012-132-0x00007FF85CAD0000-0x00007FF85CAE0000-memory.dmp

Filesize
64KB

Download
memory/5012-146-0x00007FF85CAD0000-0x00007FF85CAE0000-memory.dmp

Filesize
64KB

Download
memory/5012-147-0x00007FF85CAD0000-0x00007FF85CAE0000-memory.dmp

Filesize
64KB

Download
memory/5012-148-0x00007FF85CAD0000-0x00007FF85CAE0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads