08d2efae12306032ed57faac347ddfade5192a382612014409216497e6e3ff51

General

Target

Invoice-630405_20211013.xlsb
Size

283KB
MD5

4a017ea95998067010e773e0047643c8
SHA1

c4c6344280074cc96f7ccfbe99c9c2483c5cbe50
SHA256

08d2efae12306032ed57faac347ddfade5192a382612014409216497e6e3ff51
SHA512

f31a6267a53c35535716e7a162fc4ddd3582b98a7444f4a3cf70226fce1f7adb28cbbab9c16b08b730111c43d9556778074cfe4baa0d00516503750fc13cf5ea

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 2 IoCs

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

Processes:

wmic.exemshta.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	1772	1628	wmic.exe	EXCEL.EXE
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	380	820	mshta.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 10 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXEmshta.exe

description	ioc	process
Set value (int)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\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-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2455352368-1077083310-2879168483-1000\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-1-5-21-2455352368-1077083310-2879168483-1000\Software\Microsoft\Internet Explorer\Main	mshta.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1628 EXCEL.EXE

pid	process
1628	EXCEL.EXE

Suspicious use of AdjustPrivilegeToken 40 IoCs

Processes:

wmic.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	1772	wmic.exe
Token: SeSecurityPrivilege	1772	wmic.exe
Token: SeTakeOwnershipPrivilege	1772	wmic.exe
Token: SeLoadDriverPrivilege	1772	wmic.exe
Token: SeSystemProfilePrivilege	1772	wmic.exe
Token: SeSystemtimePrivilege	1772	wmic.exe
Token: SeProfSingleProcessPrivilege	1772	wmic.exe
Token: SeIncBasePriorityPrivilege	1772	wmic.exe
Token: SeCreatePagefilePrivilege	1772	wmic.exe
Token: SeBackupPrivilege	1772	wmic.exe
Token: SeRestorePrivilege	1772	wmic.exe
Token: SeShutdownPrivilege	1772	wmic.exe
Token: SeDebugPrivilege	1772	wmic.exe
Token: SeSystemEnvironmentPrivilege	1772	wmic.exe
Token: SeRemoteShutdownPrivilege	1772	wmic.exe
Token: SeUndockPrivilege	1772	wmic.exe
Token: SeManageVolumePrivilege	1772	wmic.exe
Token: 33	1772	wmic.exe
Token: 34	1772	wmic.exe
Token: 35	1772	wmic.exe
Token: SeIncreaseQuotaPrivilege	1772	wmic.exe
Token: SeSecurityPrivilege	1772	wmic.exe
Token: SeTakeOwnershipPrivilege	1772	wmic.exe
Token: SeLoadDriverPrivilege	1772	wmic.exe
Token: SeSystemProfilePrivilege	1772	wmic.exe
Token: SeSystemtimePrivilege	1772	wmic.exe
Token: SeProfSingleProcessPrivilege	1772	wmic.exe
Token: SeIncBasePriorityPrivilege	1772	wmic.exe
Token: SeCreatePagefilePrivilege	1772	wmic.exe
Token: SeBackupPrivilege	1772	wmic.exe
Token: SeRestorePrivilege	1772	wmic.exe
Token: SeShutdownPrivilege	1772	wmic.exe
Token: SeDebugPrivilege	1772	wmic.exe
Token: SeSystemEnvironmentPrivilege	1772	wmic.exe
Token: SeRemoteShutdownPrivilege	1772	wmic.exe
Token: SeUndockPrivilege	1772	wmic.exe
Token: SeManageVolumePrivilege	1772	wmic.exe
Token: 33	1772	wmic.exe
Token: 34	1772	wmic.exe
Token: 35	1772	wmic.exe

Suspicious use of SetWindowsHookEx 9 IoCs

Processes:

EXCEL.EXE

pid process

1628 EXCEL.EXE
1628 EXCEL.EXE
1628 EXCEL.EXE
1628 EXCEL.EXE
1628 EXCEL.EXE
1628 EXCEL.EXE
1628 EXCEL.EXE
1628 EXCEL.EXE
1628 EXCEL.EXE

pid	process
1628	EXCEL.EXE
1628	EXCEL.EXE
1628	EXCEL.EXE
1628	EXCEL.EXE
1628	EXCEL.EXE
1628	EXCEL.EXE
1628	EXCEL.EXE
1628	EXCEL.EXE
1628	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1628 wrote to memory of 1772	1628	EXCEL.EXE	wmic.exe
PID 1628 wrote to memory of 1772	1628	EXCEL.EXE	wmic.exe
PID 1628 wrote to memory of 1772	1628	EXCEL.EXE	wmic.exe
PID 1628 wrote to memory of 1772	1628	EXCEL.EXE	wmic.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\Invoice-630405_20211013.xlsb
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1628

C:\Windows\SysWOW64\Wbem\wmic.exe
wmic process call create 'mshta C:\ProgramData\ubZVowtaYzhCZEz.rtf'
2⤵
- Process spawned unexpected child process
- Suspicious use of AdjustPrivilegeToken
PID:1772

C:\Windows\system32\mshta.exe
mshta C:\ProgramData\ubZVowtaYzhCZEz.rtf
1⤵
- Process spawned unexpected child process
- Modifies Internet Explorer settings
PID:380

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

C:\ProgramData\ubZVowtaYzhCZEz.rtf
MD5
cdc72376df95397e44787c6683ba2485

SHA1
5cbc8724c3444eaa2d5b17e299e2ab9de136ad68

SHA256
451408c55bfd913a8f1f295a58a6dc20c9bfef11adacf3988597dc728c05ca40

SHA512
2380e4e0b449f0c8997af44251f26d0c32ce48d01431e6cc31c6c1d20ec9fb8cc28fd32504d529074ed2bb4059f01f217ac56578cc6917d4f20c01b6f0095532

Download Submit
memory/1628-60-0x000000002FC91000-0x000000002FC94000-memory.dmp

Filesize
12KB

Download
memory/1628-61-0x0000000071831000-0x0000000071833000-memory.dmp

Filesize
8KB

Download
memory/1628-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1628-64-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1772-63-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads