d80fe38b47b7ee9bc76e40c8e6027b5e5546af1be8d9e3aa0af9ad05bca0dc14

General

Target

CompensationClaim_847899379_03122021.xls
Size

280KB
MD5

3e7a0655c80129cc84e6b0415f0acedf
SHA1

1def6f7e96b0f4a8b4300cb1dd1bde39bed50520
SHA256

908cc857270fcc0f0c278165df9cf6b5ff008388722e687eb9d6544def9c49db
SHA512

f5c040662fee49c81d2bd21409ca84d2c3083b4253fdfe8765d47c41b608f2a741b725901f256c17725c7089daa30a4f3151dc31478b240cdd3d72363b188041

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://185.82.219.161/44268.5271414352.dat

xlm40.dropper

http://45.140.146.26/44268.5271414352.dat

xlm40.dropper

http://188.127.227.167/44268.5271414352.dat

xlm40.dropper

http://44268.5271414352.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	1812	1856	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1772	1856	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1544	1856	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
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\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-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\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-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1856 EXCEL.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

EXCEL.EXE

pid process

1856 EXCEL.EXE
1856 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1856 EXCEL.EXE
1856 EXCEL.EXE
1856 EXCEL.EXE

pid	process
1856	EXCEL.EXE

pid	process
1856	EXCEL.EXE
1856	EXCEL.EXE

pid	process
1856	EXCEL.EXE
1856	EXCEL.EXE
1856	EXCEL.EXE

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1856 wrote to memory of 1812	1856	EXCEL.EXE	rundll32.exe
PID 1856 wrote to memory of 1812	1856	EXCEL.EXE	rundll32.exe
PID 1856 wrote to memory of 1812	1856	EXCEL.EXE	rundll32.exe
PID 1856 wrote to memory of 1812	1856	EXCEL.EXE	rundll32.exe
PID 1856 wrote to memory of 1812	1856	EXCEL.EXE	rundll32.exe
PID 1856 wrote to memory of 1812	1856	EXCEL.EXE	rundll32.exe
PID 1856 wrote to memory of 1812	1856	EXCEL.EXE	rundll32.exe
PID 1856 wrote to memory of 1772	1856	EXCEL.EXE	rundll32.exe
PID 1856 wrote to memory of 1772	1856	EXCEL.EXE	rundll32.exe
PID 1856 wrote to memory of 1772	1856	EXCEL.EXE	rundll32.exe
PID 1856 wrote to memory of 1772	1856	EXCEL.EXE	rundll32.exe
PID 1856 wrote to memory of 1772	1856	EXCEL.EXE	rundll32.exe
PID 1856 wrote to memory of 1772	1856	EXCEL.EXE	rundll32.exe
PID 1856 wrote to memory of 1772	1856	EXCEL.EXE	rundll32.exe
PID 1856 wrote to memory of 1544	1856	EXCEL.EXE	rundll32.exe
PID 1856 wrote to memory of 1544	1856	EXCEL.EXE	rundll32.exe
PID 1856 wrote to memory of 1544	1856	EXCEL.EXE	rundll32.exe
PID 1856 wrote to memory of 1544	1856	EXCEL.EXE	rundll32.exe
PID 1856 wrote to memory of 1544	1856	EXCEL.EXE	rundll32.exe
PID 1856 wrote to memory of 1544	1856	EXCEL.EXE	rundll32.exe
PID 1856 wrote to memory of 1544	1856	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_847899379_03122021.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:1856

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Runtim.broks,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1812

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Runtim.broks1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1772

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Runtim.broks2,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1544

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/1544-10-0x0000000000000000-mapping.dmp

Download
memory/1652-5-0x000007FEF67C0000-0x000007FEF6A3A000-memory.dmp

Filesize
2.5MB

Download
memory/1772-8-0x0000000000000000-mapping.dmp

Download
memory/1812-6-0x0000000000000000-mapping.dmp

Download
memory/1812-7-0x00000000767E1000-0x00000000767E3000-memory.dmp

Filesize
8KB

Download
memory/1856-2-0x000000002F2A1000-0x000000002F2A4000-memory.dmp

Filesize
12KB

Download
memory/1856-3-0x00000000719D1000-0x00000000719D3000-memory.dmp

Filesize
8KB

Download
memory/1856-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads