99464d2fe2aa5abbfb5c8f51d90d0848b5fd6df3dde9d042d3f6b2bb6269ee03

General

Target

CompensationClaim_1766530077_03122021.xls
Size

280KB
MD5

e57b0fec2bcc5e65fd5afd5a90a07aa3
SHA1

696cd7d64807e7830943bdccd95e7a2663b44c80
SHA256

99464d2fe2aa5abbfb5c8f51d90d0848b5fd6df3dde9d042d3f6b2bb6269ee03
SHA512

8849a2c23616abf869ea4612b1fb80db329415b64e5304f153a6a4e4b7d4e2bd20b57f9bd0b8357246356973ab04be5daed58f984880130c8e07930cf2cf04ec

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://185.82.219.161/44267.9645141204.dat

xlm40.dropper

http://45.140.146.26/44267.9645141204.dat

xlm40.dropper

http://188.127.227.167/44267.9645141204.dat

xlm40.dropper

http://44267.9645141204.dat

Signatures

Process spawned unexpected child process 3 IoCs

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

Processes:

rundll32.exerundll32.exerundll32.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	1032	1740	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	968	1740	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	744	1740	rundll32.exe	EXCEL.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
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 (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
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\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
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
Set value (str)	\REGISTRY\USER\S-1-5-21-3825035466-2522850611-591511364-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1740 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1740 EXCEL.EXE
1740 EXCEL.EXE
1740 EXCEL.EXE

pid	process
1740	EXCEL.EXE

pid	process
1740	EXCEL.EXE
1740	EXCEL.EXE
1740	EXCEL.EXE

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1740 wrote to memory of 1032	1740	EXCEL.EXE	rundll32.exe
PID 1740 wrote to memory of 1032	1740	EXCEL.EXE	rundll32.exe
PID 1740 wrote to memory of 1032	1740	EXCEL.EXE	rundll32.exe
PID 1740 wrote to memory of 1032	1740	EXCEL.EXE	rundll32.exe
PID 1740 wrote to memory of 1032	1740	EXCEL.EXE	rundll32.exe
PID 1740 wrote to memory of 1032	1740	EXCEL.EXE	rundll32.exe
PID 1740 wrote to memory of 1032	1740	EXCEL.EXE	rundll32.exe
PID 1740 wrote to memory of 968	1740	EXCEL.EXE	rundll32.exe
PID 1740 wrote to memory of 968	1740	EXCEL.EXE	rundll32.exe
PID 1740 wrote to memory of 968	1740	EXCEL.EXE	rundll32.exe
PID 1740 wrote to memory of 968	1740	EXCEL.EXE	rundll32.exe
PID 1740 wrote to memory of 968	1740	EXCEL.EXE	rundll32.exe
PID 1740 wrote to memory of 968	1740	EXCEL.EXE	rundll32.exe
PID 1740 wrote to memory of 968	1740	EXCEL.EXE	rundll32.exe
PID 1740 wrote to memory of 744	1740	EXCEL.EXE	rundll32.exe
PID 1740 wrote to memory of 744	1740	EXCEL.EXE	rundll32.exe
PID 1740 wrote to memory of 744	1740	EXCEL.EXE	rundll32.exe
PID 1740 wrote to memory of 744	1740	EXCEL.EXE	rundll32.exe
PID 1740 wrote to memory of 744	1740	EXCEL.EXE	rundll32.exe
PID 1740 wrote to memory of 744	1740	EXCEL.EXE	rundll32.exe
PID 1740 wrote to memory of 744	1740	EXCEL.EXE	rundll32.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\CompensationClaim_1766530077_03122021.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1740

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Runtim.broks,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1032

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Runtim.broks1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:968

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Runtim.broks2,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:744

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/744-10-0x0000000000000000-mapping.dmp

Download
memory/968-8-0x0000000000000000-mapping.dmp

Download
memory/1032-6-0x0000000000000000-mapping.dmp

Download
memory/1032-7-0x00000000766F1000-0x00000000766F3000-memory.dmp

Filesize
8KB

Download
memory/1740-2-0x000000002F341000-0x000000002F344000-memory.dmp

Filesize
12KB

Download
memory/1740-3-0x00000000715E1000-0x00000000715E3000-memory.dmp

Filesize
8KB

Download
memory/1740-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1876-5-0x000007FEF63D0000-0x000007FEF664A000-memory.dmp

Filesize
2.5MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads