63abc500d2a9f12692276d1cd2becc0ce16719ab69a69ea9827bd411f12b4291

Analysis

max time kernel
108s
max time network
108s
platform
windows10_x64
resource
win10v20210410
submitted
06-05-2021 22:02

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General

Target

Inv_399139_86191.xlsm
Size

26KB
MD5

498adcc5b1c0e59baa8779fb8a1b72df
SHA1

e5c0063a99e22394ce84104ea5d775e48dbd70a4
SHA256

7db855d25c3468c8b0cc6ed349e16f8611a875aa0c8b95b98c4c1845fc503c7b
SHA512

0effc72caeb94dc7475c4371fdaa692676bf24fbcc2f79386e5f05f9012734afa46984d80547a2c1cf61f5b4d5574944d4ac24163b02aa39bf568f6b7a1884f2

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

WerFault.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	752	1744	WerFault.exe	EXCEL.EXE

Suspicious use of NtCreateProcessExOtherParentProcess 1 IoCs

Processes:

WerFault.exe

description pid process target process

PID 752 created 1744 752 WerFault.exe EXCEL.EXE
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

752 1744 WerFault.exe EXCEL.EXE

description	pid	process	target process
PID 752 created 1744	752	WerFault.exe	EXCEL.EXE

pid	pid_target	process	target process
752	1744	WerFault.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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1744 EXCEL.EXE

pid	process
1744	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 15 IoCs

Processes:

WerFault.exe

pid	process
752	WerFault.exe
752	WerFault.exe
752	WerFault.exe
752	WerFault.exe
752	WerFault.exe
752	WerFault.exe
752	WerFault.exe
752	WerFault.exe
752	WerFault.exe
752	WerFault.exe
752	WerFault.exe
752	WerFault.exe
752	WerFault.exe
752	WerFault.exe
752	WerFault.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

WerFault.exe

description pid process

Token: SeDebugPrivilege 752 WerFault.exe
Suspicious use of SetWindowsHookEx 8 IoCs

Processes:

EXCEL.EXE

pid process

1744 EXCEL.EXE
1744 EXCEL.EXE
1744 EXCEL.EXE
1744 EXCEL.EXE
1744 EXCEL.EXE
1744 EXCEL.EXE
1744 EXCEL.EXE
1744 EXCEL.EXE

description	pid	process
Token: SeDebugPrivilege	752	WerFault.exe

pid	process
1744	EXCEL.EXE
1744	EXCEL.EXE
1744	EXCEL.EXE
1744	EXCEL.EXE
1744	EXCEL.EXE
1744	EXCEL.EXE
1744	EXCEL.EXE
1744	EXCEL.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\Inv_399139_86191.xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1744
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 1744 -s 4676
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of NtCreateProcessExOtherParentProcess
  - Program crash
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:752

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1744-114-0x00007FF69D940000-0x00007FF6A0EF6000-memory.dmp

Filesize
53.7MB

Download
memory/1744-115-0x00007FF824490000-0x00007FF8244A0000-memory.dmp

Filesize
64KB

Download
memory/1744-116-0x00007FF824490000-0x00007FF8244A0000-memory.dmp

Filesize
64KB

Download
memory/1744-117-0x00007FF824490000-0x00007FF8244A0000-memory.dmp

Filesize
64KB

Download
memory/1744-118-0x00007FF824490000-0x00007FF8244A0000-memory.dmp

Filesize
64KB

Download
memory/1744-121-0x00007FF844C90000-0x00007FF845D7E000-memory.dmp

Filesize
16.9MB

Download
memory/1744-122-0x00007FF824490000-0x00007FF8244A0000-memory.dmp

Filesize
64KB

Download
memory/1744-123-0x00007FF842D90000-0x00007FF844C85000-memory.dmp

Filesize
31.0MB

Download
memory/1744-179-0x000001923D170000-0x000001923D174000-memory.dmp

Filesize
16KB

Download