e75d1f70aaf82289112e4b3859563131738019cfb2198a96a5d6197a99db4f20

General

Target

Documents449.xlsm
Size

57KB
MD5

9dbad542b671f4e700258b2c58a9195b
SHA1

0a24b5ba33f37c387a9895702959169f4f577bfa
SHA256

3d799da3e93bebcb93e74ebf906a4690914aa338538eb7abe5627ff87e455da7
SHA512

f50541f6c7059f7a61fe9896b6d0eccfedc34a5b3a81ee7232ea792d0946105c1070785decb54357a3b834a67a3fb37edeab4ab093a474d7a546b0f75b0a5647

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://yar03jmtvr03jtqg.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	816	2044	wmic.exe	EXCEL.EXE
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	344	528	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\MenuExt	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 (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
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
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
Key created	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

2044 EXCEL.EXE

pid	process
2044	EXCEL.EXE

Suspicious use of AdjustPrivilegeToken 40 IoCs

Processes:

wmic.exe

description	pid	process
Token: SeIncreaseQuotaPrivilege	816	wmic.exe
Token: SeSecurityPrivilege	816	wmic.exe
Token: SeTakeOwnershipPrivilege	816	wmic.exe
Token: SeLoadDriverPrivilege	816	wmic.exe
Token: SeSystemProfilePrivilege	816	wmic.exe
Token: SeSystemtimePrivilege	816	wmic.exe
Token: SeProfSingleProcessPrivilege	816	wmic.exe
Token: SeIncBasePriorityPrivilege	816	wmic.exe
Token: SeCreatePagefilePrivilege	816	wmic.exe
Token: SeBackupPrivilege	816	wmic.exe
Token: SeRestorePrivilege	816	wmic.exe
Token: SeShutdownPrivilege	816	wmic.exe
Token: SeDebugPrivilege	816	wmic.exe
Token: SeSystemEnvironmentPrivilege	816	wmic.exe
Token: SeRemoteShutdownPrivilege	816	wmic.exe
Token: SeUndockPrivilege	816	wmic.exe
Token: SeManageVolumePrivilege	816	wmic.exe
Token: 33	816	wmic.exe
Token: 34	816	wmic.exe
Token: 35	816	wmic.exe
Token: SeIncreaseQuotaPrivilege	816	wmic.exe
Token: SeSecurityPrivilege	816	wmic.exe
Token: SeTakeOwnershipPrivilege	816	wmic.exe
Token: SeLoadDriverPrivilege	816	wmic.exe
Token: SeSystemProfilePrivilege	816	wmic.exe
Token: SeSystemtimePrivilege	816	wmic.exe
Token: SeProfSingleProcessPrivilege	816	wmic.exe
Token: SeIncBasePriorityPrivilege	816	wmic.exe
Token: SeCreatePagefilePrivilege	816	wmic.exe
Token: SeBackupPrivilege	816	wmic.exe
Token: SeRestorePrivilege	816	wmic.exe
Token: SeShutdownPrivilege	816	wmic.exe
Token: SeDebugPrivilege	816	wmic.exe
Token: SeSystemEnvironmentPrivilege	816	wmic.exe
Token: SeRemoteShutdownPrivilege	816	wmic.exe
Token: SeUndockPrivilege	816	wmic.exe
Token: SeManageVolumePrivilege	816	wmic.exe
Token: 33	816	wmic.exe
Token: 34	816	wmic.exe
Token: 35	816	wmic.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

2044 EXCEL.EXE
2044 EXCEL.EXE
2044 EXCEL.EXE

pid	process
2044	EXCEL.EXE
2044	EXCEL.EXE
2044	EXCEL.EXE

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 2044 wrote to memory of 816	2044	EXCEL.EXE	wmic.exe
PID 2044 wrote to memory of 816	2044	EXCEL.EXE	wmic.exe
PID 2044 wrote to memory of 816	2044	EXCEL.EXE	wmic.exe
PID 2044 wrote to memory of 816	2044	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\Documents449.xlsm
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2044

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:816

C:\Windows\system32\regsvr32.exe
regsvr32 -s C:\Users\Public\microsoft.security
1⤵
- Process spawned unexpected child process
PID:344

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

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Downloads

memory/344-7-0x000007FEFC011000-0x000007FEFC013000-memory.dmp

Filesize
8KB

Download
memory/816-6-0x0000000000000000-mapping.dmp

Download
memory/1656-5-0x000007FEF77C0000-0x000007FEF7A3A000-memory.dmp

Filesize
2.5MB

Download
memory/2044-2-0x000000002F711000-0x000000002F714000-memory.dmp

Filesize
12KB

Download
memory/2044-3-0x0000000071671000-0x0000000071673000-memory.dmp

Filesize
8KB

Download
memory/2044-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads