76fe96d3bf7ac8c80fb1a41f2dce3dc25e4e92b7b9bd07ea77971d6eacaa3418

General

Target

Complaint-Copy-586583352-03092021.xls
Size

80KB
MD5

c59317100bd570df0a5729f966f1d841
SHA1

5d4e7fd3ecafad8c999e82a7cdc95efe3d04447d
SHA256

c7a7d8e5ba1e52d7fdcc0ebabc1a0b11b6cf87281bfdcab8f9945588c8c8903c
SHA512

fd77b45c1e41a58de7e7c2d5e4b1faa7036c2a065e8f24c26df39ef8ab91c449864036e4f45ac0ad9c31a13e6ce0fb100a3b0ae28bc3633555a774cfca12d19e

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://www.kncomputers.com/zbremh/44264.8228959491.dat

xlm40.dropper

http://pureaqua.pk/foioij/44264.8228959491.dat

xlm40.dropper

http://sklep.omax.pl/bahuvxwm/44264.8228959491.dat

xlm40.dropper

http://nirvanaeyehospital.com/tabnhw/44264.8228959491.dat

xlm40.dropper

http://simplithy.co.uk/hxxnhl/44264.8228959491.dat

Signatures

Process spawned unexpected child process 5 IoCs

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

Processes:

rundll32.exerundll32.exerundll32.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	2044	784	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1144	784	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	456	784	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	964	784	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	524	784	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
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\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
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

784 EXCEL.EXE
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

EXCEL.EXE

pid process

784 EXCEL.EXE
784 EXCEL.EXE
784 EXCEL.EXE

pid	process
784	EXCEL.EXE

pid	process
784	EXCEL.EXE
784	EXCEL.EXE
784	EXCEL.EXE

Suspicious use of WriteProcessMemory 35 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 784 wrote to memory of 2044	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 2044	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 2044	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 2044	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 2044	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 2044	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 2044	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 1144	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 1144	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 1144	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 1144	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 1144	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 1144	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 1144	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 456	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 456	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 456	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 456	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 456	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 456	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 456	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 964	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 964	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 964	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 964	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 964	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 964	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 964	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 524	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 524	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 524	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 524	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 524	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 524	784	EXCEL.EXE	rundll32.exe
PID 784 wrote to memory of 524	784	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\Complaint-Copy-586583352-03092021.xls
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:784

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Soft.soft,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:2044

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Soft.soft1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:1144

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Soft.soft2,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:456

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Soft.soft3,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:964

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\Soft.soft4,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:524

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/456-10-0x0000000000000000-mapping.dmp

Download
memory/524-14-0x0000000000000000-mapping.dmp

Download
memory/784-2-0x000000002FB91000-0x000000002FB94000-memory.dmp

Filesize
12KB

Download
memory/784-3-0x0000000071191000-0x0000000071193000-memory.dmp

Filesize
8KB

Download
memory/784-4-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/964-12-0x0000000000000000-mapping.dmp

Download
memory/1144-8-0x0000000000000000-mapping.dmp

Download
memory/1732-5-0x000007FEF6010000-0x000007FEF628A000-memory.dmp

Filesize
2.5MB

Download
memory/2044-6-0x0000000000000000-mapping.dmp

Download
memory/2044-7-0x0000000075C61000-0x0000000075C63000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads