bd7729979ce89a15f5a8195fa33f17c5fc59d5636f3294ef8f397decd6f05c79

General

Target

SecuriteInfo.com.Heur.1516.25525.xls
Size

274KB
MD5

86bcd1dbc5f256c0cd0ef95d57821946
SHA1

6b7e3f13faafed23d1460ae25a2caef46a5ad8ae
SHA256

bd7729979ce89a15f5a8195fa33f17c5fc59d5636f3294ef8f397decd6f05c79
SHA512

660d524c08eee362d88920671f4adacb42278c7dcc749cd82b8d59cbfb8862fce3411e71a2388b73d150d91f7d9436a7d2e6fe0f39fd83eedc049804fbc60051

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://parkisolutions.com/nerugin.dll

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	1228	1240	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-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\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-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\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-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1240 EXCEL.EXE

Suspicious use of SetWindowsHookEx 12 IoCs

Processes:

EXCEL.EXE

pid	process
1240	EXCEL.EXE
1240	EXCEL.EXE
1240	EXCEL.EXE
1240	EXCEL.EXE
1240	EXCEL.EXE
1240	EXCEL.EXE
1240	EXCEL.EXE
1240	EXCEL.EXE
1240	EXCEL.EXE
1240	EXCEL.EXE
1240	EXCEL.EXE
1240	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1240 wrote to memory of 1228	1240	EXCEL.EXE	rundll32.exe
PID 1240 wrote to memory of 1228	1240	EXCEL.EXE	rundll32.exe
PID 1240 wrote to memory of 1228	1240	EXCEL.EXE	rundll32.exe
PID 1240 wrote to memory of 1228	1240	EXCEL.EXE	rundll32.exe
PID 1240 wrote to memory of 1228	1240	EXCEL.EXE	rundll32.exe
PID 1240 wrote to memory of 1228	1240	EXCEL.EXE	rundll32.exe
PID 1240 wrote to memory of 1228	1240	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\SecuriteInfo.com.Heur.1516.25525.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1240

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\iofjgjfldnd.hde,StartW
2⤵
- Process spawned unexpected child process
PID:1228

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/1228-62-0x0000000000000000-mapping.dmp

Download
memory/1228-63-0x00000000752B1000-0x00000000752B3000-memory.dmp

Filesize
8KB

Download
memory/1240-59-0x000000002FA51000-0x000000002FA54000-memory.dmp

Filesize
12KB

Download
memory/1240-60-0x0000000070E41000-0x0000000070E43000-memory.dmp

Filesize
8KB

Download
memory/1240-61-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads