b3adb44ad0055c7118d70dc49b3ff4ed51208f740e9dbc3f5041e7f5baa2589c

General

Target

audit-1290630629.xlsb
Size

155KB
MD5

4ba1fbc31761dc93b3957d77e6d87bb6
SHA1

65843c8d1e72ef009e88093d7cbe74b22af217e6
SHA256

b3adb44ad0055c7118d70dc49b3ff4ed51208f740e9dbc3f5041e7f5baa2589c
SHA512

785c34e09dbd9a629c5e56ee7da4a9032945ccf095fe60c5e45d8436b426909301a6d7a8414f89b5f7406ddafd8fce1a0ea48d743de0b45608ad8c229c4b4437

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

https://shadiinfo.com/2DP6mQeg/pt.html

xlm40.dropper

https://treasurechestcaribbean.com/pZ2Z61bqa/pt.html

Signatures

Process spawned unexpected child process 2 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

regsvr32.exeregsvr32.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	760	1032	regsvr32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1140	1032	regsvr32.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\Toolbar	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
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 (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
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
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
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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1032 EXCEL.EXE
Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

EXCEL.EXE

pid process

1032 EXCEL.EXE
1032 EXCEL.EXE
1032 EXCEL.EXE
1032 EXCEL.EXE
1032 EXCEL.EXE
1032 EXCEL.EXE
1032 EXCEL.EXE

pid	process
1032	EXCEL.EXE

pid	process
1032	EXCEL.EXE
1032	EXCEL.EXE
1032	EXCEL.EXE
1032	EXCEL.EXE
1032	EXCEL.EXE
1032	EXCEL.EXE
1032	EXCEL.EXE

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1032 wrote to memory of 1428	1032	EXCEL.EXE	splwow64.exe
PID 1032 wrote to memory of 1428	1032	EXCEL.EXE	splwow64.exe
PID 1032 wrote to memory of 1428	1032	EXCEL.EXE	splwow64.exe
PID 1032 wrote to memory of 1428	1032	EXCEL.EXE	splwow64.exe
PID 1032 wrote to memory of 760	1032	EXCEL.EXE	regsvr32.exe
PID 1032 wrote to memory of 760	1032	EXCEL.EXE	regsvr32.exe
PID 1032 wrote to memory of 760	1032	EXCEL.EXE	regsvr32.exe
PID 1032 wrote to memory of 760	1032	EXCEL.EXE	regsvr32.exe
PID 1032 wrote to memory of 760	1032	EXCEL.EXE	regsvr32.exe
PID 1032 wrote to memory of 760	1032	EXCEL.EXE	regsvr32.exe
PID 1032 wrote to memory of 760	1032	EXCEL.EXE	regsvr32.exe
PID 1032 wrote to memory of 1140	1032	EXCEL.EXE	regsvr32.exe
PID 1032 wrote to memory of 1140	1032	EXCEL.EXE	regsvr32.exe
PID 1032 wrote to memory of 1140	1032	EXCEL.EXE	regsvr32.exe
PID 1032 wrote to memory of 1140	1032	EXCEL.EXE	regsvr32.exe
PID 1032 wrote to memory of 1140	1032	EXCEL.EXE	regsvr32.exe
PID 1032 wrote to memory of 1140	1032	EXCEL.EXE	regsvr32.exe
PID 1032 wrote to memory of 1140	1032	EXCEL.EXE	regsvr32.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\audit-1290630629.xlsb
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1032

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:1428

C:\Windows\SysWOW64\regsvr32.exe
regsvr32 -s ..\covi1.dll
2⤵
- Process spawned unexpected child process
PID:760

C:\Windows\SysWOW64\regsvr32.exe
regsvr32 -s ..\covi2.dll
2⤵
- Process spawned unexpected child process
PID:1140

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/760-65-0x0000000000000000-mapping.dmp

Download
memory/760-66-0x0000000075591000-0x0000000075593000-memory.dmp

Filesize
8KB

Download
memory/1032-60-0x000000002FFB1000-0x000000002FFB4000-memory.dmp

Filesize
12KB

Download
memory/1032-61-0x0000000071191000-0x0000000071193000-memory.dmp

Filesize
8KB

Download
memory/1032-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1140-67-0x0000000000000000-mapping.dmp

Download
memory/1428-63-0x0000000000000000-mapping.dmp

Download
memory/1428-64-0x000007FEFB991000-0x000007FEFB993000-memory.dmp

Filesize
8KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads