ad6d94157dcc3666ab60e3e3b4c8b3399db6b5aa0ffd4f86c090c4e6e2289ede

General

Target

document-1886749459.xls
Size

315KB
MD5

6913e77aeb547e77d868bbf167d3b752
SHA1

6eaf6fb365e609da5036d2017ee1cc165ac848fc
SHA256

8c979e0996db7ae20fbb99272e57aa9d1b13ca8a440563970fe45ea04dcd2be0
SHA512

9016d838bfe88532267b8133198b1d327410af695783f3f8ee04c607706f2a3437ac2e98d016c611f3e2f75853378a325d752940c31cdb4c58d5d30ae4c86394

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://intellectsmart.in/ds/1702.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	1712	1020	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 (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\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-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1020 EXCEL.EXE
Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

EXCEL.EXE

pid process

1020 EXCEL.EXE
1020 EXCEL.EXE
1020 EXCEL.EXE
1020 EXCEL.EXE
1020 EXCEL.EXE

pid	process
1020	EXCEL.EXE

pid	process
1020	EXCEL.EXE
1020	EXCEL.EXE
1020	EXCEL.EXE
1020	EXCEL.EXE
1020	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1020 wrote to memory of 1712	1020	EXCEL.EXE	rundll32.exe
PID 1020 wrote to memory of 1712	1020	EXCEL.EXE	rundll32.exe
PID 1020 wrote to memory of 1712	1020	EXCEL.EXE	rundll32.exe
PID 1020 wrote to memory of 1712	1020	EXCEL.EXE	rundll32.exe
PID 1020 wrote to memory of 1712	1020	EXCEL.EXE	rundll32.exe
PID 1020 wrote to memory of 1712	1020	EXCEL.EXE	rundll32.exe
PID 1020 wrote to memory of 1712	1020	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-1886749459.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1020

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\woifm.cjd,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1712

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/1020-2-0x000000002FDB1000-0x000000002FDB4000-memory.dmp

Filesize
12KB

Download
memory/1020-3-0x0000000070DE1000-0x0000000070DE3000-memory.dmp

Filesize
8KB

Download
memory/1020-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1712-6-0x0000000000000000-mapping.dmp

Download
memory/1712-7-0x00000000753E1000-0x00000000753E3000-memory.dmp

Filesize
8KB

Download
memory/1736-5-0x000007FEF5BD0000-0x000007FEF5E4A000-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