9fcb88b31b3472e6e32bc678ec6145f959dd4d588a0325bc17743b675a592ec6

General

Target

document-2048961057.xls
Size

86KB
MD5

a2eef102370b2ce65dc2a5716aadfab5
SHA1

2856f0d6609ab8e70e179cf3e56dabcabcde68b3
SHA256

fc3dee9ee4cc942f9905d7d19c7e205bad05df8f403c687068dda98e882c3e14
SHA512

0bd681a414eb795df747f01080d6dbe6fcd190262497998a91b4455c93e67eee69f84834c4b093a63eaf4767460f358748979360b517d15369d48d0a76727785

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://etysu02scnabr03wzaxue.com/index.xls

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	996	384	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-1-5-21-293278959-2699126792-324916226-1000\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
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\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 (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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

384 EXCEL.EXE
Suspicious use of SetWindowsHookEx 5 IoCs

Processes:

EXCEL.EXE

pid process

384 EXCEL.EXE
384 EXCEL.EXE
384 EXCEL.EXE
384 EXCEL.EXE
384 EXCEL.EXE

pid	process
384	EXCEL.EXE

pid	process
384	EXCEL.EXE
384	EXCEL.EXE
384	EXCEL.EXE
384	EXCEL.EXE
384	EXCEL.EXE

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 384 wrote to memory of 996	384	EXCEL.EXE	rundll32.exe
PID 384 wrote to memory of 996	384	EXCEL.EXE	rundll32.exe
PID 384 wrote to memory of 996	384	EXCEL.EXE	rundll32.exe
PID 384 wrote to memory of 996	384	EXCEL.EXE	rundll32.exe
PID 384 wrote to memory of 996	384	EXCEL.EXE	rundll32.exe
PID 384 wrote to memory of 996	384	EXCEL.EXE	rundll32.exe
PID 384 wrote to memory of 996	384	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-2048961057.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:384

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Ihjsazcx.rke,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:996

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/384-2-0x000000002F581000-0x000000002F584000-memory.dmp

Filesize
12KB

Download
memory/384-3-0x0000000071281000-0x0000000071283000-memory.dmp

Filesize
8KB

Download
memory/384-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/996-6-0x0000000000000000-mapping.dmp

Download
memory/996-7-0x0000000076241000-0x0000000076243000-memory.dmp

Filesize
8KB

Download
memory/1444-5-0x000007FEF7300000-0x000007FEF757A000-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