1a5b07ad875ff013b0a98cab20382645f0465201b6b29a83b99b671a5240a40d

General

Target

CompensationClaim_916887251_03122021.xls
Size

280KB
MD5

00b3e93aa50b54e4370685eac11359e0
SHA1

979caebf13a6a7bb3ce36ca4d63596bf98fe75d3
SHA256

1a5b07ad875ff013b0a98cab20382645f0465201b6b29a83b99b671a5240a40d
SHA512

0caa35aea822cf77c397abadebfbd8deecf2b8ad41497cbc9270e1c83e9a3122112307d3dcb810488f4843b072fc32677d84a1f55be23bbf2526a0638de385bd

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://185.82.219.161/44267.7524708333.dat

xlm40.dropper

http://45.140.146.26/44267.7524708333.dat

xlm40.dropper

http://188.127.227.167/44267.7524708333.dat

xlm40.dropper

http://44267.7524708333.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	368	1832	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	564	1832	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	616	1832	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\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	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
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

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1832 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1832 EXCEL.EXE
1832 EXCEL.EXE
1832 EXCEL.EXE

pid	process
1832	EXCEL.EXE

pid	process
1832	EXCEL.EXE
1832	EXCEL.EXE
1832	EXCEL.EXE

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1832 wrote to memory of 368	1832	EXCEL.EXE	rundll32.exe
PID 1832 wrote to memory of 368	1832	EXCEL.EXE	rundll32.exe
PID 1832 wrote to memory of 368	1832	EXCEL.EXE	rundll32.exe
PID 1832 wrote to memory of 368	1832	EXCEL.EXE	rundll32.exe
PID 1832 wrote to memory of 368	1832	EXCEL.EXE	rundll32.exe
PID 1832 wrote to memory of 368	1832	EXCEL.EXE	rundll32.exe
PID 1832 wrote to memory of 368	1832	EXCEL.EXE	rundll32.exe
PID 1832 wrote to memory of 564	1832	EXCEL.EXE	rundll32.exe
PID 1832 wrote to memory of 564	1832	EXCEL.EXE	rundll32.exe
PID 1832 wrote to memory of 564	1832	EXCEL.EXE	rundll32.exe
PID 1832 wrote to memory of 564	1832	EXCEL.EXE	rundll32.exe
PID 1832 wrote to memory of 564	1832	EXCEL.EXE	rundll32.exe
PID 1832 wrote to memory of 564	1832	EXCEL.EXE	rundll32.exe
PID 1832 wrote to memory of 564	1832	EXCEL.EXE	rundll32.exe
PID 1832 wrote to memory of 616	1832	EXCEL.EXE	rundll32.exe
PID 1832 wrote to memory of 616	1832	EXCEL.EXE	rundll32.exe
PID 1832 wrote to memory of 616	1832	EXCEL.EXE	rundll32.exe
PID 1832 wrote to memory of 616	1832	EXCEL.EXE	rundll32.exe
PID 1832 wrote to memory of 616	1832	EXCEL.EXE	rundll32.exe
PID 1832 wrote to memory of 616	1832	EXCEL.EXE	rundll32.exe
PID 1832 wrote to memory of 616	1832	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_916887251_03122021.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1832

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Runtim.broks,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:368

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Runtim.broks1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:564

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Runtim.broks2,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:616

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/368-6-0x0000000000000000-mapping.dmp

Download
memory/368-7-0x0000000075DE1000-0x0000000075DE3000-memory.dmp

Filesize
8KB

Download
memory/564-8-0x0000000000000000-mapping.dmp

Download
memory/616-10-0x0000000000000000-mapping.dmp

Download
memory/1832-2-0x000000002FE11000-0x000000002FE14000-memory.dmp

Filesize
12KB

Download
memory/1832-3-0x0000000070ED1000-0x0000000070ED3000-memory.dmp

Filesize
8KB

Download
memory/1832-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1876-5-0x000007FEF5D50000-0x000007FEF5FCA000-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