a7fcf4db18ca60e8cf3db3a2c3e1525e4cf4f2dbee71e24eeb454e95af2d28cb

General

Target

document-910135933.xls
Size

88KB
MD5

814282f1d7fd479acd82713add78e6c6
SHA1

0a8b3f73bad2b6c0ec9b5baf348d1734f809f4ab
SHA256

76aa36a044f5bce1d9bed46da22c92670ed558caf67745e5c1fa351710e8bb1d
SHA512

8994cb14a450b2ca9b03af6f8c698e38d4e5cfe88246b9d996dc25fc570e3c3a6e7102ad7e30e07f50f68d344b58a43a1bb82a73ff015ccd7bd5b64aa94a1e00

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://mygrandmomskitchen.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	1112	1752	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\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
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
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
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 (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

1752 EXCEL.EXE
Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

EXCEL.EXE

pid process

1752 EXCEL.EXE
1752 EXCEL.EXE
1752 EXCEL.EXE
1752 EXCEL.EXE
1752 EXCEL.EXE

pid	process
1752	EXCEL.EXE

pid	process
1752	EXCEL.EXE
1752	EXCEL.EXE
1752	EXCEL.EXE
1752	EXCEL.EXE
1752	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1752 wrote to memory of 1112	1752	EXCEL.EXE	rundll32.exe
PID 1752 wrote to memory of 1112	1752	EXCEL.EXE	rundll32.exe
PID 1752 wrote to memory of 1112	1752	EXCEL.EXE	rundll32.exe
PID 1752 wrote to memory of 1112	1752	EXCEL.EXE	rundll32.exe
PID 1752 wrote to memory of 1112	1752	EXCEL.EXE	rundll32.exe
PID 1752 wrote to memory of 1112	1752	EXCEL.EXE	rundll32.exe
PID 1752 wrote to memory of 1112	1752	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-910135933.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1752

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\idefje.ekfd,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1112

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/1112-6-0x0000000000000000-mapping.dmp

Download
memory/1112-7-0x0000000075EB1000-0x0000000075EB3000-memory.dmp

Filesize
8KB

Download
memory/1752-2-0x000000002FB81000-0x000000002FB84000-memory.dmp

Filesize
12KB

Download
memory/1752-3-0x0000000071011000-0x0000000071013000-memory.dmp

Filesize
8KB

Download
memory/1752-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1976-5-0x000007FEF7160000-0x000007FEF73DA000-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