87437de0c4fbde322bec0d7bf897927d60d4903925632aa4373bac43ed82f695

General

Target

Debt-Details-2065399866-05132021.xlsm
Size

196KB
MD5

ac9df8f0a9eb4d16bd673611f8062429
SHA1

76e7b947f54aada88a3ac4b892202ba9549f8e12
SHA256

87437de0c4fbde322bec0d7bf897927d60d4903925632aa4373bac43ed82f695
SHA512

7f299de372983072b5e149a2e47209daf202786678629e8f64bfddb137a553ad118795e48eb7dc74a1eeaaf5cff9b7f007403e9e4ffa4adc9d117ddade58bb5b

Score

10^/10

Malware Config

Extracted

Language

xlm4.0

Source

URLs

xlm40.dropper

http://195.123.221.179/44330.0206428241.dat

xlm40.dropper

http://188.165.62.17/44330.0206428241.dat

xlm40.dropper

http://185.183.98.29/44330.0206428241.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	632	1104	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	384	1104	rundll32.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	112	1104	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-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\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-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\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-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1104 EXCEL.EXE
Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

EXCEL.EXE

pid process

1104 EXCEL.EXE
1104 EXCEL.EXE
1104 EXCEL.EXE
1104 EXCEL.EXE
1104 EXCEL.EXE
1104 EXCEL.EXE
1104 EXCEL.EXE

pid	process
1104	EXCEL.EXE

pid	process
1104	EXCEL.EXE
1104	EXCEL.EXE
1104	EXCEL.EXE
1104	EXCEL.EXE
1104	EXCEL.EXE
1104	EXCEL.EXE
1104	EXCEL.EXE

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

EXCEL.EXE

description	pid	process	target process
PID 1104 wrote to memory of 632	1104	EXCEL.EXE	rundll32.exe
PID 1104 wrote to memory of 632	1104	EXCEL.EXE	rundll32.exe
PID 1104 wrote to memory of 632	1104	EXCEL.EXE	rundll32.exe
PID 1104 wrote to memory of 632	1104	EXCEL.EXE	rundll32.exe
PID 1104 wrote to memory of 632	1104	EXCEL.EXE	rundll32.exe
PID 1104 wrote to memory of 632	1104	EXCEL.EXE	rundll32.exe
PID 1104 wrote to memory of 632	1104	EXCEL.EXE	rundll32.exe
PID 1104 wrote to memory of 384	1104	EXCEL.EXE	rundll32.exe
PID 1104 wrote to memory of 384	1104	EXCEL.EXE	rundll32.exe
PID 1104 wrote to memory of 384	1104	EXCEL.EXE	rundll32.exe
PID 1104 wrote to memory of 384	1104	EXCEL.EXE	rundll32.exe
PID 1104 wrote to memory of 384	1104	EXCEL.EXE	rundll32.exe
PID 1104 wrote to memory of 384	1104	EXCEL.EXE	rundll32.exe
PID 1104 wrote to memory of 384	1104	EXCEL.EXE	rundll32.exe
PID 1104 wrote to memory of 112	1104	EXCEL.EXE	rundll32.exe
PID 1104 wrote to memory of 112	1104	EXCEL.EXE	rundll32.exe
PID 1104 wrote to memory of 112	1104	EXCEL.EXE	rundll32.exe
PID 1104 wrote to memory of 112	1104	EXCEL.EXE	rundll32.exe
PID 1104 wrote to memory of 112	1104	EXCEL.EXE	rundll32.exe
PID 1104 wrote to memory of 112	1104	EXCEL.EXE	rundll32.exe
PID 1104 wrote to memory of 112	1104	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\Debt-Details-2065399866-05132021.xlsm
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1104

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\lertio.cersw,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:632

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\lertio.cersw1,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:384

C:\Windows\SysWOW64\rundll32.exe
rundll32 ..\lertio.cersw2,DllRegisterServer
2⤵
- Process spawned unexpected child process
PID:112

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/112-67-0x0000000000000000-mapping.dmp

Download
memory/384-65-0x0000000000000000-mapping.dmp

Download
memory/632-63-0x0000000000000000-mapping.dmp

Download
memory/632-64-0x0000000076E11000-0x0000000076E13000-memory.dmp

Filesize
8KB

Download
memory/1104-60-0x000000002FA41000-0x000000002FA44000-memory.dmp

Filesize
12KB

Download
memory/1104-61-0x0000000071D01000-0x0000000071D03000-memory.dmp

Filesize
8KB

Download
memory/1104-62-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads