Malware Analysis Report

2025-08-05 21:39

Sample ID 221110-mjnkgshae3
Target 237b60f922241157a85d147ba1243226d3763872abd6dbb66d98f0550cea7d0c.xls
SHA256 237b60f922241157a85d147ba1243226d3763872abd6dbb66d98f0550cea7d0c
Tags
macro xlm emotet epoch5 banker persistence trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V6

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

237b60f922241157a85d147ba1243226d3763872abd6dbb66d98f0550cea7d0c

Threat Level: Known bad

The file 237b60f922241157a85d147ba1243226d3763872abd6dbb66d98f0550cea7d0c.xls was found to be: Known bad.

Malicious Activity Summary

macro xlm emotet epoch5 banker persistence trojan

Emotet

Process spawned unexpected child process

Suspicious Office macro

Downloads MZ/PE file

Loads dropped DLL

Adds Run key to start application

Enumerates system info in registry

Suspicious use of SetWindowsHookEx

Checks processor information in registry

Suspicious behavior: AddClipboardFormatListener

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2022-11-10 10:29

Signatures

Suspicious Office macro

macro xlm
Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2022-11-10 10:29

Reported

2022-11-10 10:32

Platform

win10-20220812-en

Max time kernel

132s

Max time network

134s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\237b60f922241157a85d147ba1243226d3763872abd6dbb66d98f0550cea7d0c.xls"

Signatures

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A

Enumerates system info in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
N/A N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A

Processes

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\237b60f922241157a85d147ba1243226d3763872abd6dbb66d98f0550cea7d0c.xls"

Network

Files

memory/1604-120-0x00007FFED9F20000-0x00007FFED9F30000-memory.dmp

memory/1604-121-0x00007FFED9F20000-0x00007FFED9F30000-memory.dmp

memory/1604-122-0x00007FFED9F20000-0x00007FFED9F30000-memory.dmp

memory/1604-123-0x00007FFED9F20000-0x00007FFED9F30000-memory.dmp

memory/1604-132-0x00007FFED6450000-0x00007FFED6460000-memory.dmp

memory/1604-133-0x00007FFED6450000-0x00007FFED6460000-memory.dmp

memory/1604-290-0x00007FFED9F20000-0x00007FFED9F30000-memory.dmp

memory/1604-291-0x00007FFED9F20000-0x00007FFED9F30000-memory.dmp

memory/1604-293-0x00007FFED9F20000-0x00007FFED9F30000-memory.dmp

memory/1604-292-0x00007FFED9F20000-0x00007FFED9F30000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2022-11-10 10:29

Reported

2022-11-10 10:32

Platform

win10-20220901-en

Max time kernel

148s

Max time network

147s

Command Line

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\237b60f922241157a85d147ba1243226d3763872abd6dbb66d98f0550cea7d0c.xls"

Signatures

Emotet

trojan banker emotet

Process spawned unexpected child process

Description Indicator Process Target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process N/A C:\Windows\System32\regsvr32.exe C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process N/A C:\Windows\System32\regsvr32.exe C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process N/A C:\Windows\System32\regsvr32.exe C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process N/A C:\Windows\System32\regsvr32.exe C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE

Downloads MZ/PE file

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Windows\System32\regsvr32.exe N/A
N/A N/A C:\Windows\System32\regsvr32.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run C:\Windows\system32\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Fbiy.dll = "C:\\Windows\\system32\\regsvr32.exe \"C:\\Windows\\system32\\NrqtG\\Fbiy.dll\"" C:\Windows\system32\regsvr32.exe N/A
Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run C:\Windows\system32\regsvr32.exe N/A
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\DUzhnpOCizEYUpUS.dll = "C:\\Windows\\system32\\regsvr32.exe \"C:\\Windows\\system32\\IcpCxPodwgJDfVk\\DUzhnpOCizEYUpUS.dll\"" C:\Windows\system32\regsvr32.exe N/A

Checks processor information in registry

Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A

Enumerates system info in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A

Suspicious behavior: AddClipboardFormatListener

Description Indicator Process Target
N/A N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1644 wrote to memory of 452 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\System32\regsvr32.exe
PID 1644 wrote to memory of 452 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\System32\regsvr32.exe
PID 452 wrote to memory of 3208 N/A C:\Windows\System32\regsvr32.exe C:\Windows\system32\regsvr32.exe
PID 452 wrote to memory of 3208 N/A C:\Windows\System32\regsvr32.exe C:\Windows\system32\regsvr32.exe
PID 1644 wrote to memory of 1196 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\System32\regsvr32.exe
PID 1644 wrote to memory of 1196 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\System32\regsvr32.exe
PID 1196 wrote to memory of 2112 N/A C:\Windows\System32\regsvr32.exe C:\Windows\system32\regsvr32.exe
PID 1196 wrote to memory of 2112 N/A C:\Windows\System32\regsvr32.exe C:\Windows\system32\regsvr32.exe
PID 1644 wrote to memory of 1956 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\System32\regsvr32.exe
PID 1644 wrote to memory of 1956 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\System32\regsvr32.exe
PID 1644 wrote to memory of 1948 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\System32\regsvr32.exe
PID 1644 wrote to memory of 1948 N/A C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE C:\Windows\System32\regsvr32.exe

Processes

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE

"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\237b60f922241157a85d147ba1243226d3763872abd6dbb66d98f0550cea7d0c.xls"

C:\Windows\System32\regsvr32.exe

C:\Windows\System32\regsvr32.exe /S ..\elv1.ooocccxxx

C:\Windows\system32\regsvr32.exe

C:\Windows\system32\regsvr32.exe "C:\Windows\system32\IcpCxPodwgJDfVk\DUzhnpOCizEYUpUS.dll"

C:\Windows\System32\regsvr32.exe

C:\Windows\System32\regsvr32.exe /S ..\elv2.ooocccxxx

C:\Windows\system32\regsvr32.exe

C:\Windows\system32\regsvr32.exe "C:\Windows\system32\NrqtG\Fbiy.dll"

C:\Windows\System32\regsvr32.exe

C:\Windows\System32\regsvr32.exe /S ..\elv3.ooocccxxx

C:\Windows\System32\regsvr32.exe

C:\Windows\System32\regsvr32.exe /S ..\elv4.ooocccxxx

Network

Country Destination Domain Proto
FR 2.16.119.157:443 tcp
US 8.8.8.8:53 bosny.com udp
TH 203.151.59.20:443 bosny.com tcp
US 8.8.8.8:53 navylin.com udp
CN 47.92.133.65:80 navylin.com tcp
US 20.42.65.84:443 tcp
US 209.197.3.8:80 tcp
US 8.8.8.8:53 asrani.garudaputih.com udp
SG 51.79.133.157:80 asrani.garudaputih.com tcp
US 8.8.8.8:53 db.rikaz.tech udp
DE 135.125.230.197:80 db.rikaz.tech tcp
ID 115.178.55.22:80 115.178.55.22 tcp
ID 115.178.55.22:80 115.178.55.22 tcp

Files

memory/1644-120-0x00007FFED8750000-0x00007FFED8760000-memory.dmp

memory/1644-121-0x00007FFED8750000-0x00007FFED8760000-memory.dmp

memory/1644-122-0x00007FFED8750000-0x00007FFED8760000-memory.dmp

memory/1644-123-0x00007FFED8750000-0x00007FFED8760000-memory.dmp

memory/1644-132-0x00007FFED5040000-0x00007FFED5050000-memory.dmp

memory/1644-133-0x00007FFED5040000-0x00007FFED5050000-memory.dmp

memory/452-267-0x0000000000000000-mapping.dmp

C:\Users\Admin\elv1.ooocccxxx

MD5 54663713c4755b14824b36f31af99561
SHA1 242cb103a9c653490fe70e9624f8598d0351a88f
SHA256 64c4ca763f96b5ebf7c01b3f68d8d82a56872a274e2ea9cfbb9d8971794cc115
SHA512 374b79727f32540783b6370df3a0a95717abe0b441b5d1e85660371ed59d021acacee8c1027b74d246fcf5455df03340e9ed7349a78c615f49e904e0762886b0

\Users\Admin\elv1.ooocccxxx

MD5 54663713c4755b14824b36f31af99561
SHA1 242cb103a9c653490fe70e9624f8598d0351a88f
SHA256 64c4ca763f96b5ebf7c01b3f68d8d82a56872a274e2ea9cfbb9d8971794cc115
SHA512 374b79727f32540783b6370df3a0a95717abe0b441b5d1e85660371ed59d021acacee8c1027b74d246fcf5455df03340e9ed7349a78c615f49e904e0762886b0

memory/452-271-0x0000000000750000-0x000000000077E000-memory.dmp

memory/3208-279-0x0000000000000000-mapping.dmp

memory/1196-285-0x0000000000000000-mapping.dmp

C:\Users\Admin\elv2.ooocccxxx

MD5 4e8c394222a8ad3a013d41781d24070f
SHA1 84598e96917e7413baaa8906b4da8310360a41e5
SHA256 1a481aa005d82e3ac514e4fd4525615b08285e2d1f52d4b650b0fb540cbd33a6
SHA512 59b3e55f375daa7ad7bc0125b675d4dfb57fbf3ad7ab0744f7d54099057d17e0757ecb241fcab6e226e79f914954ca31221798ee75661e9ba738604e8d8cbf32

\Users\Admin\elv2.ooocccxxx

MD5 4e8c394222a8ad3a013d41781d24070f
SHA1 84598e96917e7413baaa8906b4da8310360a41e5
SHA256 1a481aa005d82e3ac514e4fd4525615b08285e2d1f52d4b650b0fb540cbd33a6
SHA512 59b3e55f375daa7ad7bc0125b675d4dfb57fbf3ad7ab0744f7d54099057d17e0757ecb241fcab6e226e79f914954ca31221798ee75661e9ba738604e8d8cbf32

memory/2112-293-0x0000000000000000-mapping.dmp

memory/1956-299-0x0000000000000000-mapping.dmp

memory/1948-300-0x0000000000000000-mapping.dmp