6cb9eff2c03a7064a655a6117cb62d4bf8694a6fab10588cac60b0781d60ca4d

General

Target
Client_documents_access_1793-1029.xlsm
Size 85KB
Sample210723-e7xcd967t2
SHA256 6cb9eff2c03a7064a655a6117cb62d4bf8694a6fab10588cac60b0781d60ca4d
MD5 e05574d2a2b00fc7b9862ad631ce3315
SHA1 b55f7933231453358bd4e0a033a8030595412b60
SHA512 065d815ac37c355098345392f4ffe1793317e6cd55640f05229c2f1211b9a0dd0941844e7234a27986f8b6a48cb8de1aa883440c23be91450f6b1da9cb9c1468
MD5 SHA1 SHA512

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper
http://162.248.227.39/first.php

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 (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1740	1080	regsvr32.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-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1080	EXCEL.EXE

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1080	EXCEL.EXE
1080	EXCEL.EXE
1080	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1080 wrote to memory of 1740	1080	EXCEL.EXE	31
PID 1080 wrote to memory of 1740	1080	EXCEL.EXE	31
PID 1080 wrote to memory of 1740	1080	EXCEL.EXE	31
PID 1080 wrote to memory of 1740	1080	EXCEL.EXE	31
PID 1080 wrote to memory of 1740	1080	EXCEL.EXE	31
PID 1080 wrote to memory of 1740	1080	EXCEL.EXE	31
PID 1080 wrote to memory of 1740	1080	EXCEL.EXE	31

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\Client_documents_access_1793-1029.xlsm
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1080
- C:\Windows\SysWOW64\regsvr32.exe
  regsvr32 -silent ..\yeieowur.dll
  2⤵
  - Process spawned unexpected child process
  PID:1740

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1080-59-0x000000002F4C1000-0x000000002F4C4000-memory.dmp

Download

memory/1080-60-0x0000000071081000-0x0000000071083000-memory.dmp

Download

memory/1080-61-0x000000005FFF0000-0x0000000060000000-memory.dmp

Download

memory/1740-63-0x0000000075561000-0x0000000075563000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads