9949352737ebfbbb301f6510b47a16b2ddb41f7c26b90eb35ff91d4dbd7cdd20

Analysis

max time kernel
70s
max time network
72s
platform
windows7_x64
resource
win7v20201028
submitted
01/04/2021, 18:23

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General

Target
1930.xlsm
Size 84KB
Sample210401-sshbvyfdbx
SHA256 9949352737ebfbbb301f6510b47a16b2ddb41f7c26b90eb35ff91d4dbd7cdd20
MD5 fd176c75c255423b982d25ab9cdb33c1
SHA1 d96bd2b43ae1be9f74de695854b27d9a44c1d57c
SHA512 1e7da26635cb0a33a565dd4f8f77493f2a2efbe773fbc9e8baba317e3976fa313fb8e77ba0aa696a4fa9830d98896d2b23f93dd68f0f131ae79e1c6aff0c89a6
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://comosairdoburaco.com.br/ds/0104.gif
xlm40.dropper
https://accesslinksgroup.com/ds/0104.gif
xlm40.dropper
https://ponchokhana.com/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	920	1108	rundll32.exe	24
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	760	1108	rundll32.exe	24
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1068	1108	rundll32.exe	24
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1312	1108	rundll32.exe	24
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1140	1108	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	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 (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\Se&nd to OneNote	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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1108	EXCEL.EXE

Suspicious use of SetWindowsHookEx 13 IoCs

pid	Process
1108	EXCEL.EXE
1108	EXCEL.EXE
1108	EXCEL.EXE
1108	EXCEL.EXE
1108	EXCEL.EXE
1108	EXCEL.EXE
1108	EXCEL.EXE
1108	EXCEL.EXE
1108	EXCEL.EXE
1108	EXCEL.EXE
1108	EXCEL.EXE
1108	EXCEL.EXE
1108	EXCEL.EXE

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 1108 wrote to memory of 920	1108	EXCEL.EXE	31
PID 1108 wrote to memory of 920	1108	EXCEL.EXE	31
PID 1108 wrote to memory of 920	1108	EXCEL.EXE	31
PID 1108 wrote to memory of 920	1108	EXCEL.EXE	31
PID 1108 wrote to memory of 920	1108	EXCEL.EXE	31
PID 1108 wrote to memory of 920	1108	EXCEL.EXE	31
PID 1108 wrote to memory of 920	1108	EXCEL.EXE	31
PID 1108 wrote to memory of 760	1108	EXCEL.EXE	32
PID 1108 wrote to memory of 760	1108	EXCEL.EXE	32
PID 1108 wrote to memory of 760	1108	EXCEL.EXE	32
PID 1108 wrote to memory of 760	1108	EXCEL.EXE	32
PID 1108 wrote to memory of 760	1108	EXCEL.EXE	32
PID 1108 wrote to memory of 760	1108	EXCEL.EXE	32
PID 1108 wrote to memory of 760	1108	EXCEL.EXE	32
PID 1108 wrote to memory of 1068	1108	EXCEL.EXE	33
PID 1108 wrote to memory of 1068	1108	EXCEL.EXE	33
PID 1108 wrote to memory of 1068	1108	EXCEL.EXE	33
PID 1108 wrote to memory of 1068	1108	EXCEL.EXE	33
PID 1108 wrote to memory of 1068	1108	EXCEL.EXE	33
PID 1108 wrote to memory of 1068	1108	EXCEL.EXE	33
PID 1108 wrote to memory of 1068	1108	EXCEL.EXE	33
PID 1108 wrote to memory of 1312	1108	EXCEL.EXE	34
PID 1108 wrote to memory of 1312	1108	EXCEL.EXE	34
PID 1108 wrote to memory of 1312	1108	EXCEL.EXE	34
PID 1108 wrote to memory of 1312	1108	EXCEL.EXE	34
PID 1108 wrote to memory of 1312	1108	EXCEL.EXE	34
PID 1108 wrote to memory of 1312	1108	EXCEL.EXE	34
PID 1108 wrote to memory of 1312	1108	EXCEL.EXE	34
PID 1108 wrote to memory of 1140	1108	EXCEL.EXE	35
PID 1108 wrote to memory of 1140	1108	EXCEL.EXE	35
PID 1108 wrote to memory of 1140	1108	EXCEL.EXE	35
PID 1108 wrote to memory of 1140	1108	EXCEL.EXE	35
PID 1108 wrote to memory of 1140	1108	EXCEL.EXE	35
PID 1108 wrote to memory of 1140	1108	EXCEL.EXE	35
PID 1108 wrote to memory of 1140	1108	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\1930.xlsm
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1108
- C:\Windows\SysWOW64\rundll32.exe
  rundll32 ..\iekdhfe.dsk,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:920
- C:\Windows\SysWOW64\rundll32.exe
  rundll32 ..\iekdhfe.dsk1,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:760
- C:\Windows\SysWOW64\rundll32.exe
  rundll32 ..\iekdhfe.dsk2,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:1068
- C:\Windows\SysWOW64\rundll32.exe
  rundll32 ..\iekdhfe.dsk3,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:1312
- C:\Windows\SysWOW64\rundll32.exe
  rundll32 ..\iekdhfe.dsk4,DllRegisterServer
  2⤵
  - Process spawned unexpected child process
  PID:1140

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

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Downloads

memory/920-12-0x00000000760D1000-0x00000000760D3000-memory.dmp

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memory/1108-5-0x0000000001DA0000-0x0000000001DA1000-memory.dmp

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memory/1108-9-0x0000000001DA0000-0x0000000001DA1000-memory.dmp

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memory/1108-7-0x0000000001DA0000-0x0000000001DA1000-memory.dmp

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memory/1108-2-0x000000002F0F1000-0x000000002F0F4000-memory.dmp

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memory/1108-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

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memory/1108-3-0x0000000071251000-0x0000000071253000-memory.dmp

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memory/1972-10-0x000007FEF7510000-0x000007FEF778A000-memory.dmp

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Analysis

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General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads