Malware Analysis Report

2025-01-03 06:25

Sample ID 240312-ysws1acb37
Target task1.zip
SHA256 da385110321ef4da4d3660452118bda7c598c38f4b7ccf577cb67c266bdf2c61
Tags
emotet epoch2 banker trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

da385110321ef4da4d3660452118bda7c598c38f4b7ccf577cb67c266bdf2c61

Threat Level: Known bad

The file task1.zip was found to be: Known bad.

Malicious Activity Summary

emotet epoch2 banker trojan

Emotet

Emotet payload

Executes dropped EXE

Drops file in System32 directory

Unsigned PE

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: RenamesItself

Suspicious use of WriteProcessMemory

Modifies registry class

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-03-12 20:03

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-03-12 20:03

Reported

2024-03-12 20:07

Platform

win10-20240221-en

Max time kernel

201s

Max time network

221s

Command Line

"C:\Users\Admin\AppData\Local\Temp\task1.exe"

Signatures

Emotet

trojan banker emotet

Emotet payload

trojan banker
Description Indicator Process Target
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A
N/A N/A N/A N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\dmcmnutils\tbs.exe N/A

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\dmcmnutils\tbs.exe C:\Users\Admin\AppData\Local\Temp\task1.exe N/A

Enumerates physical storage devices

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\USER\S-1-5-21-1531961169-1615826105-2188682873-1000_Classes\Local Settings C:\Windows\explorer.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\task1.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\task1.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\task1.exe N/A
N/A N/A C:\Windows\SysWOW64\dmcmnutils\tbs.exe N/A
N/A N/A C:\Windows\SysWOW64\dmcmnutils\tbs.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 680 wrote to memory of 2920 N/A C:\Users\Admin\AppData\Local\Temp\task1.exe C:\Windows\SysWOW64\dmcmnutils\tbs.exe
PID 680 wrote to memory of 2920 N/A C:\Users\Admin\AppData\Local\Temp\task1.exe C:\Windows\SysWOW64\dmcmnutils\tbs.exe
PID 680 wrote to memory of 2920 N/A C:\Users\Admin\AppData\Local\Temp\task1.exe C:\Windows\SysWOW64\dmcmnutils\tbs.exe

Processes

C:\Users\Admin\AppData\Local\Temp\task1.exe

"C:\Users\Admin\AppData\Local\Temp\task1.exe"

C:\Windows\SysWOW64\dmcmnutils\tbs.exe

"C:\Windows\SysWOW64\dmcmnutils\tbs.exe"

C:\Windows\System32\rundll32.exe

C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding

C:\Windows\explorer.exe

"C:\Windows\explorer.exe" shell:::{52205fd8-5dfb-447d-801a-d0b52f2e83e1}

C:\Windows\explorer.exe

C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding

Network

Country Destination Domain Proto
US 74.219.172.26:80 tcp
US 134.209.36.254:8080 tcp
US 104.156.59.7:8080 tcp
NZ 120.138.30.150:8080 tcp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
BG 194.187.133.160:443 tcp
US 104.236.246.93:8080 tcp
US 74.208.45.104:8080 tcp
US 8.8.8.8:53 1.173.189.20.in-addr.arpa udp
TR 78.187.156.31:80 tcp
MX 187.161.206.24:80 tcp
US 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
FR 94.23.216.33:80 tcp
US 172.91.208.86:80 tcp

Files

memory/680-0-0x00000000006E0000-0x00000000006F2000-memory.dmp

memory/680-3-0x00000000005B0000-0x00000000005BF000-memory.dmp

memory/680-5-0x00000000005C0000-0x00000000005D0000-memory.dmp

C:\Windows\SysWOW64\dmcmnutils\tbs.exe

MD5 2ba73d2d47cf2d388446b781613b7eff
SHA1 c75c7eb4814835388881d1b4c2db67e64a023e1e
SHA256 06c6442d5bb110140ac1cdbcf1be52388441b9a0750d59b743acc6b52d19582b
SHA512 667ddc16765d8c3c3596bb734174862db1f2ac24037c361a2e37ec9824c35a8926728400025d62c62c361b1b1e1a9d1e3b4c38c2c5989eee832e083481e50caa

memory/2920-9-0x0000000000A20000-0x0000000000A32000-memory.dmp

memory/2920-13-0x0000000000A40000-0x0000000000A50000-memory.dmp