6fef8f8889696624dbd6251d11c9c42ea7618b69ec80b865f780d1981abb6ead

General

Target

CompensationClaim_535312269_03152021.xls
Size

233KB
MD5

7386ba3954abeb94678392a70eadf006
SHA1

eac177926fe173417b9360d680a0971e35f0763c
SHA256

6fef8f8889696624dbd6251d11c9c42ea7618b69ec80b865f780d1981abb6ead
SHA512

8e3ce4add0d22732fe9b325958d58727846240f5888f90b51f4d76e615d2d8f4ff601d2ab686acb9c6d2648fa77d5e2bde45fdb3297452218af607b5e45b6c17

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://188.127.254.114/44270.7357631944.dat

xlm40.dropper

http://185.82.219.160/44270.7357631944.dat

xlm40.dropper

http://45.140.146.34/44270.7357631944.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	816	1596	Rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1096	1596	Rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1788	1596	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-1-5-21-293278959-2699126792-324916226-1000\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\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-293278959-2699126792-324916226-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	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
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

1596 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

1596 EXCEL.EXE
1596 EXCEL.EXE
1596 EXCEL.EXE

pid	process
1596	EXCEL.EXE

pid	process
1596	EXCEL.EXE
1596	EXCEL.EXE
1596	EXCEL.EXE

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1596 wrote to memory of 816	1596	EXCEL.EXE	Rundll32.exe
PID 1596 wrote to memory of 816	1596	EXCEL.EXE	Rundll32.exe
PID 1596 wrote to memory of 816	1596	EXCEL.EXE	Rundll32.exe
PID 1596 wrote to memory of 816	1596	EXCEL.EXE	Rundll32.exe
PID 1596 wrote to memory of 816	1596	EXCEL.EXE	Rundll32.exe
PID 1596 wrote to memory of 816	1596	EXCEL.EXE	Rundll32.exe
PID 1596 wrote to memory of 816	1596	EXCEL.EXE	Rundll32.exe
PID 1596 wrote to memory of 1096	1596	EXCEL.EXE	Rundll32.exe
PID 1596 wrote to memory of 1096	1596	EXCEL.EXE	Rundll32.exe
PID 1596 wrote to memory of 1096	1596	EXCEL.EXE	Rundll32.exe
PID 1596 wrote to memory of 1096	1596	EXCEL.EXE	Rundll32.exe
PID 1596 wrote to memory of 1096	1596	EXCEL.EXE	Rundll32.exe
PID 1596 wrote to memory of 1096	1596	EXCEL.EXE	Rundll32.exe
PID 1596 wrote to memory of 1096	1596	EXCEL.EXE	Rundll32.exe
PID 1596 wrote to memory of 1788	1596	EXCEL.EXE	Rundll32.exe
PID 1596 wrote to memory of 1788	1596	EXCEL.EXE	Rundll32.exe
PID 1596 wrote to memory of 1788	1596	EXCEL.EXE	Rundll32.exe
PID 1596 wrote to memory of 1788	1596	EXCEL.EXE	Rundll32.exe
PID 1596 wrote to memory of 1788	1596	EXCEL.EXE	Rundll32.exe
PID 1596 wrote to memory of 1788	1596	EXCEL.EXE	Rundll32.exe
PID 1596 wrote to memory of 1788	1596	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_535312269_03152021.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1596

C:\Windows\SysWOW64\Rundll32.exe
Rundll32 ..\SOT.GOT,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:816

C:\Windows\SysWOW64\Rundll32.exe
Rundll32 ..\SOT.GOT1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1096

C:\Windows\SysWOW64\Rundll32.exe
Rundll32 ..\SOT.GOT2,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1788

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/816-6-0x0000000000000000-mapping.dmp

Download
memory/816-7-0x0000000075781000-0x0000000075783000-memory.dmp

Filesize
8KB

Download
memory/1096-8-0x0000000000000000-mapping.dmp

Download
memory/1532-5-0x000007FEF7540000-0x000007FEF77BA000-memory.dmp

Filesize
2.5MB

Download
memory/1596-2-0x000000002F131000-0x000000002F134000-memory.dmp

Filesize
12KB

Download
memory/1596-3-0x0000000071331000-0x0000000071333000-memory.dmp

Filesize
8KB

Download
memory/1596-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1596-12-0x0000000000470000-0x0000000000471000-memory.dmp

Filesize
4KB

Download
memory/1788-10-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads