adb1792503545b345fb3c79a4c490a5e27de7b13bca2de9fcea8941d239ae3cb

General

Target

document-1087888573.xls
Size

315KB
MD5

0d16e6e549190be8fa9203dbdb49a86c
SHA1

290482b1d71993fbf1b78faa193b4babafb16b89
SHA256

adb1792503545b345fb3c79a4c490a5e27de7b13bca2de9fcea8941d239ae3cb
SHA512

9d2cbb8ddbf8858882e40efba08063ff7fa6953795f2fd25a4cd3c53a56215074d65b492fc53c34b8e1aa06cb58cca763dcdf2bea5a69c2800c66ae3963f4ab4

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	744	1824	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-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
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
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\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt	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
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 (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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1824 EXCEL.EXE
Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

EXCEL.EXE

pid process

1824 EXCEL.EXE
1824 EXCEL.EXE
1824 EXCEL.EXE
1824 EXCEL.EXE
1824 EXCEL.EXE
1824 EXCEL.EXE
1824 EXCEL.EXE

pid	process
1824	EXCEL.EXE

pid	process
1824	EXCEL.EXE
1824	EXCEL.EXE
1824	EXCEL.EXE
1824	EXCEL.EXE
1824	EXCEL.EXE
1824	EXCEL.EXE
1824	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1824 wrote to memory of 744	1824	EXCEL.EXE	rundll32.exe
PID 1824 wrote to memory of 744	1824	EXCEL.EXE	rundll32.exe
PID 1824 wrote to memory of 744	1824	EXCEL.EXE	rundll32.exe
PID 1824 wrote to memory of 744	1824	EXCEL.EXE	rundll32.exe
PID 1824 wrote to memory of 744	1824	EXCEL.EXE	rundll32.exe
PID 1824 wrote to memory of 744	1824	EXCEL.EXE	rundll32.exe
PID 1824 wrote to memory of 744	1824	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-1087888573.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1824

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\woifm.cjd,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:744

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/744-6-0x0000000000000000-mapping.dmp

Download
memory/744-7-0x00000000760F1000-0x00000000760F3000-memory.dmp

Filesize
8KB

Download
memory/748-5-0x000007FEF7FE0000-0x000007FEF825A000-memory.dmp

Filesize
2.5MB

Download
memory/1824-2-0x000000002F931000-0x000000002F934000-memory.dmp

Filesize
12KB

Download
memory/1824-3-0x00000000719D1000-0x00000000719D3000-memory.dmp

Filesize
8KB

Download
memory/1824-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads