ec928e9f10b2097621f5a01e4f4a902777365b7a07765a5f94348387d0bb951b

General

Target

Documents455.xlsm
Size

57KB
MD5

48f94f4fccda26ad7944d041729923ae
SHA1

0548fd594ef2ab9d0e200dd411893882b94b8940
SHA256

ec928e9f10b2097621f5a01e4f4a902777365b7a07765a5f94348387d0bb951b
SHA512

b14624d2ae5e7352dc7105d40fb2d270f47f8eb1567d66397bd1584f4dc966b4d27a6861e24d04376b7b664f65ce188cc36dcfccebfe23be8ecb2482f5262d1f

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://cfkko03vvxohq03taep.com/index.gif

Signatures

Process spawned unexpected child process 2 IoCs

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

Processes:

wmic.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	552	1888	wmic.exe	EXCEL.EXE
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	1108	1900	regsvr32.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-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar	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 (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
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
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 (int)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	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

1888 EXCEL.EXE

pid	process
1888	EXCEL.EXE

Suspicious use of AdjustPrivilegeToken 40 IoCs

Processes:

wmic.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	552	wmic.exe
Token: SeSecurityPrivilege	552	wmic.exe
Token: SeTakeOwnershipPrivilege	552	wmic.exe
Token: SeLoadDriverPrivilege	552	wmic.exe
Token: SeSystemProfilePrivilege	552	wmic.exe
Token: SeSystemtimePrivilege	552	wmic.exe
Token: SeProfSingleProcessPrivilege	552	wmic.exe
Token: SeIncBasePriorityPrivilege	552	wmic.exe
Token: SeCreatePagefilePrivilege	552	wmic.exe
Token: SeBackupPrivilege	552	wmic.exe
Token: SeRestorePrivilege	552	wmic.exe
Token: SeShutdownPrivilege	552	wmic.exe
Token: SeDebugPrivilege	552	wmic.exe
Token: SeSystemEnvironmentPrivilege	552	wmic.exe
Token: SeRemoteShutdownPrivilege	552	wmic.exe
Token: SeUndockPrivilege	552	wmic.exe
Token: SeManageVolumePrivilege	552	wmic.exe
Token: 33	552	wmic.exe
Token: 34	552	wmic.exe
Token: 35	552	wmic.exe
Token: SeIncreaseQuotaPrivilege	552	wmic.exe
Token: SeSecurityPrivilege	552	wmic.exe
Token: SeTakeOwnershipPrivilege	552	wmic.exe
Token: SeLoadDriverPrivilege	552	wmic.exe
Token: SeSystemProfilePrivilege	552	wmic.exe
Token: SeSystemtimePrivilege	552	wmic.exe
Token: SeProfSingleProcessPrivilege	552	wmic.exe
Token: SeIncBasePriorityPrivilege	552	wmic.exe
Token: SeCreatePagefilePrivilege	552	wmic.exe
Token: SeBackupPrivilege	552	wmic.exe
Token: SeRestorePrivilege	552	wmic.exe
Token: SeShutdownPrivilege	552	wmic.exe
Token: SeDebugPrivilege	552	wmic.exe
Token: SeSystemEnvironmentPrivilege	552	wmic.exe
Token: SeRemoteShutdownPrivilege	552	wmic.exe
Token: SeUndockPrivilege	552	wmic.exe
Token: SeManageVolumePrivilege	552	wmic.exe
Token: 33	552	wmic.exe
Token: 34	552	wmic.exe
Token: 35	552	wmic.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1888 EXCEL.EXE
1888 EXCEL.EXE
1888 EXCEL.EXE

pid	process
1888	EXCEL.EXE
1888	EXCEL.EXE
1888	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1888 wrote to memory of 552	1888	EXCEL.EXE	wmic.exe
PID 1888 wrote to memory of 552	1888	EXCEL.EXE	wmic.exe
PID 1888 wrote to memory of 552	1888	EXCEL.EXE	wmic.exe
PID 1888 wrote to memory of 552	1888	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\Documents455.xlsm
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1888

C:\Windows\SysWOW64\Wbem\wmic.exe
wmic.exe process call create 'regsvr32 -s C:\Users\Public\microsoft.security'
2⤵
- Process spawned unexpected child process
- Suspicious use of AdjustPrivilegeToken
PID:552

C:\Windows\system32\regsvr32.exe
regsvr32 -s C:\Users\Public\microsoft.security
1⤵
- Process spawned unexpected child process
PID:1108

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/552-6-0x0000000000000000-mapping.dmp

Download
memory/1108-7-0x000007FEFBA71000-0x000007FEFBA73000-memory.dmp

Filesize
8KB

Download
memory/1760-5-0x000007FEF6080000-0x000007FEF62FA000-memory.dmp

Filesize
2.5MB

Download
memory/1888-2-0x000000002F531000-0x000000002F534000-memory.dmp

Filesize
12KB

Download
memory/1888-3-0x0000000071271000-0x0000000071273000-memory.dmp

Filesize
8KB

Download
memory/1888-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads