04b46a5cf4add15d6d3bf71449ee547eac6d84c841daf418dbb47b00a4361af5

Analysis

max time kernel
144s
max time network
141s
platform
windows7_x64
resource
win7-20230712-en
resource tags

arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
submitted
19-07-2023 13:44

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General

Target

vvv.xlsm
Size

328KB
MD5

e5b6bf1c7ead9f74dc763021ce195b42
SHA1

1a759d31f0c6d8b1f5e3dd389bc78d2c20718e82
SHA256

04b46a5cf4add15d6d3bf71449ee547eac6d84c841daf418dbb47b00a4361af5
SHA512

c1cf06d29a1a1a3aa6505abdc51908373707790c5eeac3d9ad58393ba7e698d453d1a2f260da107453d8ee4f3c2cb148c3ae0a9f7f90bfb9d37b093acee88f11
SSDEEP

6144:eRMlgE+mJ9ABc/nv5k8IKAhBfsOwmLgzLc1pTcsGEdDIPmhsB0vRakfzeQZNPQ:eRMmEv2Bc/nvm8IKABfsYOmauFzQ

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://193.203.202.55/44300,5396033565.dat

xlm40.dropper

http://190.14.37.245/44300,5396033565.dat

xlm40.dropper

http://194.67.214.216/44300,5396033565.dat

Signatures

Process spawned unexpected child process 3 IoCs

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

Processes:

rundll32.exerundll32.exerundll32.exe

description	pid	pid_target	process	target process
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	2732	2444	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	2756	2444	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	2788	2444	rundll32.exe	EXCEL.EXE

Office loads VBA resources, possible macro or embedded object present
Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

EXCEL.EXE

description ioc process

Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2444 EXCEL.EXE
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

EXCEL.EXE

pid process

2444 EXCEL.EXE
Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

EXCEL.EXE

pid process

2444 EXCEL.EXE
2444 EXCEL.EXE
2444 EXCEL.EXE
2444 EXCEL.EXE
2444 EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

pid	process
2444	EXCEL.EXE

pid	process
2444	EXCEL.EXE

pid	process
2444	EXCEL.EXE
2444	EXCEL.EXE
2444	EXCEL.EXE
2444	EXCEL.EXE
2444	EXCEL.EXE

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2444 wrote to memory of 2732	2444	EXCEL.EXE	rundll32.exe
PID 2444 wrote to memory of 2732	2444	EXCEL.EXE	rundll32.exe
PID 2444 wrote to memory of 2732	2444	EXCEL.EXE	rundll32.exe
PID 2444 wrote to memory of 2732	2444	EXCEL.EXE	rundll32.exe
PID 2444 wrote to memory of 2732	2444	EXCEL.EXE	rundll32.exe
PID 2444 wrote to memory of 2732	2444	EXCEL.EXE	rundll32.exe
PID 2444 wrote to memory of 2732	2444	EXCEL.EXE	rundll32.exe
PID 2444 wrote to memory of 2756	2444	EXCEL.EXE	rundll32.exe
PID 2444 wrote to memory of 2756	2444	EXCEL.EXE	rundll32.exe
PID 2444 wrote to memory of 2756	2444	EXCEL.EXE	rundll32.exe
PID 2444 wrote to memory of 2756	2444	EXCEL.EXE	rundll32.exe
PID 2444 wrote to memory of 2756	2444	EXCEL.EXE	rundll32.exe
PID 2444 wrote to memory of 2756	2444	EXCEL.EXE	rundll32.exe
PID 2444 wrote to memory of 2756	2444	EXCEL.EXE	rundll32.exe
PID 2444 wrote to memory of 2788	2444	EXCEL.EXE	rundll32.exe
PID 2444 wrote to memory of 2788	2444	EXCEL.EXE	rundll32.exe
PID 2444 wrote to memory of 2788	2444	EXCEL.EXE	rundll32.exe
PID 2444 wrote to memory of 2788	2444	EXCEL.EXE	rundll32.exe
PID 2444 wrote to memory of 2788	2444	EXCEL.EXE	rundll32.exe
PID 2444 wrote to memory of 2788	2444	EXCEL.EXE	rundll32.exe
PID 2444 wrote to memory of 2788	2444	EXCEL.EXE	rundll32.exe

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\vvv.xlsm
1⤵
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2444
- C:\Windows\SysWOW64\rundll32.exe
  rundll32 ..\Klos.viters,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:2732
- C:\Windows\SysWOW64\rundll32.exe
  rundll32 ..\Klos.viters1,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:2756
- C:\Windows\SysWOW64\rundll32.exe
  rundll32 ..\Klos.viters2,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:2788

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

Replay Monitor

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Downloads

memory/2444-53-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2444-54-0x00000000739AD000-0x00000000739B8000-memory.dmp

Filesize
44KB

Download
memory/2444-55-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download
memory/2444-56-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download
memory/2444-57-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download
memory/2444-58-0x00000000739AD000-0x00000000739B8000-memory.dmp

Filesize
44KB

Download
memory/2444-59-0x0000000000630000-0x0000000000730000-memory.dmp

Filesize
1024KB

Download