be7845ed01ffc55fee1afc3dfe920fe26fc6b992ba9ae33a35e036c1b4b9f0d4

General

Target

document-1911271790.xls
Size

88KB
MD5

b06088f340daf14e2329423e6c03a3d8
SHA1

16cb3c036658cb410b7ba2af0e5b580791d43271
SHA256

9c60f9e70aacfccb250fe5cce6d0cf8701e5dc08c2aa9ac44db5e95d8f51130a
SHA512

6fb87d80550049a3a2750c8d3e0078d75a30b1e987c0f4d1afc40030fe95242c5146e4206bafd3f8c36be1f6b6cdd257e7dd90690f8f14b7df66e06889da2aee

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://ishikapress.com/ds/1802.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	672	1904	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\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\MenuExt	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
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
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1904 EXCEL.EXE
Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

EXCEL.EXE

pid process

1904 EXCEL.EXE
1904 EXCEL.EXE
1904 EXCEL.EXE
1904 EXCEL.EXE
1904 EXCEL.EXE
1904 EXCEL.EXE
1904 EXCEL.EXE

pid	process
1904	EXCEL.EXE

pid	process
1904	EXCEL.EXE
1904	EXCEL.EXE
1904	EXCEL.EXE
1904	EXCEL.EXE
1904	EXCEL.EXE
1904	EXCEL.EXE
1904	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1904 wrote to memory of 672	1904	EXCEL.EXE	rundll32.exe
PID 1904 wrote to memory of 672	1904	EXCEL.EXE	rundll32.exe
PID 1904 wrote to memory of 672	1904	EXCEL.EXE	rundll32.exe
PID 1904 wrote to memory of 672	1904	EXCEL.EXE	rundll32.exe
PID 1904 wrote to memory of 672	1904	EXCEL.EXE	rundll32.exe
PID 1904 wrote to memory of 672	1904	EXCEL.EXE	rundll32.exe
PID 1904 wrote to memory of 672	1904	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-1911271790.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1904

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\idefje.ekfd,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:672

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/672-12-0x0000000000000000-mapping.dmp

Download
memory/672-13-0x00000000766F1000-0x00000000766F3000-memory.dmp

Filesize
8KB

Download
memory/1808-10-0x000007FEF7730000-0x000007FEF79AA000-memory.dmp

Filesize
2.5MB

Download
memory/1904-2-0x000000002FF71000-0x000000002FF74000-memory.dmp

Filesize
12KB

Download
memory/1904-3-0x00000000715E1000-0x00000000715E3000-memory.dmp

Filesize
8KB

Download
memory/1904-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1904-5-0x00000000004F0000-0x00000000004F1000-memory.dmp

Filesize
4KB

Download
memory/1904-7-0x00000000004F0000-0x00000000004F1000-memory.dmp

Filesize
4KB

Download
memory/1904-9-0x00000000004F0000-0x00000000004F1000-memory.dmp

Filesize
4KB

Download
memory/1904-11-0x00000000004F0000-0x00000000004F1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads