846922f5633e8f805c5365d9dfde58b973adef1c22fe5ce33b03bd90e9326b76

General

Target

document-1541761416.xls
Size

86KB
MD5

36940b6627143038880da0a81dc9f7df
SHA1

d4c2f6b0e04c5678cadb31d26286aca58c5baab8
SHA256

effa3b97b8d62971388819456ada7a792b772b05d7d02d3c4f97bfa1a6056c00
SHA512

c27a75ea1289af591cc6296435b6a05b8f5ed4f2c144ed4f578d0c6e5306e7e8a8e374473c3b40c761f56e5b8637c83fa72381aa5f38147bb624116382501587

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://wlog28dzzmi02spfin.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	612	1152	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
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
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
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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1152 EXCEL.EXE
Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

EXCEL.EXE

pid process

1152 EXCEL.EXE
1152 EXCEL.EXE
1152 EXCEL.EXE
1152 EXCEL.EXE
1152 EXCEL.EXE

pid	process
1152	EXCEL.EXE

pid	process
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE
1152	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1152 wrote to memory of 612	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 612	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 612	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 612	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 612	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 612	1152	EXCEL.EXE	rundll32.exe
PID 1152 wrote to memory of 612	1152	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-1541761416.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1152

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\IEUDLK.CJF,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:612

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/612-6-0x0000000000000000-mapping.dmp

Download
memory/612-7-0x00000000760C1000-0x00000000760C3000-memory.dmp

Filesize
8KB

Download
memory/1152-2-0x000000002F5F1000-0x000000002F5F4000-memory.dmp

Filesize
12KB

Download
memory/1152-3-0x0000000071191000-0x0000000071193000-memory.dmp

Filesize
8KB

Download
memory/1152-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1688-5-0x000007FEF6010000-0x000007FEF628A000-memory.dmp

Filesize
2.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads