b4876751b860a5b5cb6b79bb7cbe50feb6163321e7b582f441d3b9ae4fd256cb

Analysis

max time kernel
71s
max time network
75s
platform
windows7_x64
resource
win7v20201028
submitted
01/04/2021, 12:25

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
document-1456634656.xls
Size 180KB
Sample210401-wsft6qp5ca
SHA256 b4876751b860a5b5cb6b79bb7cbe50feb6163321e7b582f441d3b9ae4fd256cb
MD5 5387f366a6fa70fb6a1051fa4d1e04eb
SHA1 13e31ab5a7a9c9945b3915f429a47f5f6ac5837c
SHA512 958e146fc83aaec22cd8dca069afdf1e89bb36797a6db247e75ce09df5a3b08faa808988380a125b94eacb459c8be359acba026143b419dda5856ffe0f363df6
MD5 SHA1 SHA512

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper
https://vts.us.com/ds/0104.gif
xlm40.dropper
https://mundotecnologiasolar.com/ds/0104.gif
xlm40.dropper
https://accesslinksgroup.com/ds/0104.gif
xlm40.dropper
https://ponchokhana.com/ds/0104.gif
xlm40.dropper
https://comosairdoburaco.com.br/ds/0104.gif

Signatures

Process spawned unexpected child process 5 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 (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	916	1072	rundll32.exe	24
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1516	1072	rundll32.exe	24
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	528	1072	rundll32.exe	24
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1480	1072	rundll32.exe	24
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1920	1072	rundll32.exe	24

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1072	EXCEL.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1072	EXCEL.EXE
1072	EXCEL.EXE
1072	EXCEL.EXE

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 1072 wrote to memory of 916	1072	EXCEL.EXE	31
PID 1072 wrote to memory of 916	1072	EXCEL.EXE	31
PID 1072 wrote to memory of 916	1072	EXCEL.EXE	31
PID 1072 wrote to memory of 916	1072	EXCEL.EXE	31
PID 1072 wrote to memory of 916	1072	EXCEL.EXE	31
PID 1072 wrote to memory of 916	1072	EXCEL.EXE	31
PID 1072 wrote to memory of 916	1072	EXCEL.EXE	31
PID 1072 wrote to memory of 1516	1072	EXCEL.EXE	32
PID 1072 wrote to memory of 1516	1072	EXCEL.EXE	32
PID 1072 wrote to memory of 1516	1072	EXCEL.EXE	32
PID 1072 wrote to memory of 1516	1072	EXCEL.EXE	32
PID 1072 wrote to memory of 1516	1072	EXCEL.EXE	32
PID 1072 wrote to memory of 1516	1072	EXCEL.EXE	32
PID 1072 wrote to memory of 1516	1072	EXCEL.EXE	32
PID 1072 wrote to memory of 528	1072	EXCEL.EXE	33
PID 1072 wrote to memory of 528	1072	EXCEL.EXE	33
PID 1072 wrote to memory of 528	1072	EXCEL.EXE	33
PID 1072 wrote to memory of 528	1072	EXCEL.EXE	33
PID 1072 wrote to memory of 528	1072	EXCEL.EXE	33
PID 1072 wrote to memory of 528	1072	EXCEL.EXE	33
PID 1072 wrote to memory of 528	1072	EXCEL.EXE	33
PID 1072 wrote to memory of 1480	1072	EXCEL.EXE	34
PID 1072 wrote to memory of 1480	1072	EXCEL.EXE	34
PID 1072 wrote to memory of 1480	1072	EXCEL.EXE	34
PID 1072 wrote to memory of 1480	1072	EXCEL.EXE	34
PID 1072 wrote to memory of 1480	1072	EXCEL.EXE	34
PID 1072 wrote to memory of 1480	1072	EXCEL.EXE	34
PID 1072 wrote to memory of 1480	1072	EXCEL.EXE	34
PID 1072 wrote to memory of 1920	1072	EXCEL.EXE	35
PID 1072 wrote to memory of 1920	1072	EXCEL.EXE	35
PID 1072 wrote to memory of 1920	1072	EXCEL.EXE	35
PID 1072 wrote to memory of 1920	1072	EXCEL.EXE	35
PID 1072 wrote to memory of 1920	1072	EXCEL.EXE	35
PID 1072 wrote to memory of 1920	1072	EXCEL.EXE	35
PID 1072 wrote to memory of 1920	1072	EXCEL.EXE	35

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\document-1456634656.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1072
- C:\Windows\SysWOW64\rundll32.exe
  rundll32 ..\fikftkm.thj,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:916
- C:\Windows\SysWOW64\rundll32.exe
  rundll32 ..\fikftkm.thj1,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:1516
- C:\Windows\SysWOW64\rundll32.exe
  rundll32 ..\fikftkm.thj2,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:528
- C:\Windows\SysWOW64\rundll32.exe
  rundll32 ..\fikftkm.thj3,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:1480
- C:\Windows\SysWOW64\rundll32.exe
  rundll32 ..\fikftkm.thj4,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:1920

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/916-7-0x0000000075251000-0x0000000075253000-memory.dmp

Download

memory/1072-2-0x000000002F8C1000-0x000000002F8C4000-memory.dmp

Download

memory/1072-3-0x0000000071671000-0x0000000071673000-memory.dmp

Download

memory/1072-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Download

memory/1656-5-0x000007FEF6510000-0x000007FEF678A000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads