8bfd6da153f43e819ed278b72ab71cbe9bb6f6f12a3d83372db44040d437e601

General

Target

document-680008354.xls
Size

85KB
MD5

6cafc4b93a4c66581441b5600cc5966d
SHA1

ec60a23a49f04ae580e8efec984af57ef418df55
SHA256

b136a63d91105af8f36bd2548e6fecf275a0ace8bbe79f2c621efde9239abafc
SHA512

a59fc98b8b086104411a07040729f7472b7965a8e7a622dd69907b4d109200c1c6c985f5cfbc3ffb523d6f139df23f77ab3e6b81343c8721a9f7078e6d444cfc

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://ugrl28bxsnh02kohk.com/mrch.gif

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

rundll32.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	440	1640	rundll32.exe	EXCEL.EXE

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

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

Processes:

EXCEL.EXE

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt	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
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
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

Processes:

EXCEL.EXE

pid process

1640 EXCEL.EXE
Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

EXCEL.EXE

pid process

1640 EXCEL.EXE
1640 EXCEL.EXE
1640 EXCEL.EXE
1640 EXCEL.EXE
1640 EXCEL.EXE

pid	process
1640	EXCEL.EXE

pid	process
1640	EXCEL.EXE
1640	EXCEL.EXE
1640	EXCEL.EXE
1640	EXCEL.EXE
1640	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1640 wrote to memory of 440	1640	EXCEL.EXE	rundll32.exe
PID 1640 wrote to memory of 440	1640	EXCEL.EXE	rundll32.exe
PID 1640 wrote to memory of 440	1640	EXCEL.EXE	rundll32.exe
PID 1640 wrote to memory of 440	1640	EXCEL.EXE	rundll32.exe
PID 1640 wrote to memory of 440	1640	EXCEL.EXE	rundll32.exe
PID 1640 wrote to memory of 440	1640	EXCEL.EXE	rundll32.exe
PID 1640 wrote to memory of 440	1640	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\document-680008354.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1640

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\IEUDLK.CJF,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:440

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

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Downloads

memory/440-11-0x0000000000000000-mapping.dmp

Download
memory/440-12-0x00000000761E1000-0x00000000761E3000-memory.dmp

Filesize
8KB

Download
memory/1640-2-0x000000002F531000-0x000000002F534000-memory.dmp

Filesize
12KB

Download
memory/1640-3-0x0000000071521000-0x0000000071523000-memory.dmp

Filesize
8KB

Download
memory/1640-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1640-5-0x00000000004C0000-0x00000000004C1000-memory.dmp

Filesize
4KB

Download
memory/1640-7-0x00000000004C0000-0x00000000004C1000-memory.dmp

Filesize
4KB

Download
memory/1640-9-0x00000000004C0000-0x00000000004C1000-memory.dmp

Filesize
4KB

Download
memory/1676-10-0x000007FEF6380000-0x000007FEF65FA000-memory.dmp

Filesize
2.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads