Malware Analysis Report

2025-01-03 06:01

Sample ID 240402-lwjavsdc4y
Target b1cad1540ecb290088252635f8e130022eed7486eb128c0ca3d676945d60a9fc.zip
SHA256 3a5d3ccbe1161064dd4900cbd8ca11797b13b9692fc66d3a632e53767b4fdc34
Tags
emotet epoch3 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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

3a5d3ccbe1161064dd4900cbd8ca11797b13b9692fc66d3a632e53767b4fdc34

Threat Level: Known bad

The file b1cad1540ecb290088252635f8e130022eed7486eb128c0ca3d676945d60a9fc.zip was found to be: Known bad.

Malicious Activity Summary

emotet epoch3 banker trojan

Emotet

Drops file in System32 directory

Unsigned PE

Enumerates physical storage devices

Modifies data under HKEY_USERS

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: RenamesItself

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-04-02 09:52

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-04-02 09:52

Reported

2024-04-02 09:55

Platform

win7-20240221-en

Max time kernel

140s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b1cad1540ecb290088252635f8e130022eed7486eb128c0ca3d676945d60a9fc.exe"

Signatures

Emotet

trojan banker emotet

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat C:\Windows\SysWOW64\rebrandrebrand.exe N/A

Enumerates physical storage devices

Modifies data under HKEY_USERS

Description Indicator Process Target
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{064763DF-A25E-4BED-A124-A3EF5B565EB6}\WpadDecisionReason = "1" C:\Windows\SysWOW64\rebrandrebrand.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000004000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f008e000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\rebrandrebrand.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\rebrandrebrand.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\rebrandrebrand.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" C:\Windows\SysWOW64\rebrandrebrand.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections C:\Windows\SysWOW64\rebrandrebrand.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\rebrandrebrand.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad C:\Windows\SysWOW64\rebrandrebrand.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{064763DF-A25E-4BED-A124-A3EF5B565EB6}\WpadDecisionTime = 80f6c89ee384da01 C:\Windows\SysWOW64\rebrandrebrand.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\rebrandrebrand.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix C:\Windows\SysWOW64\rebrandrebrand.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2a-4c-bf-fa-c7-32\WpadDecisionTime = e01f78dee384da01 C:\Windows\SysWOW64\rebrandrebrand.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\rebrandrebrand.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\rebrandrebrand.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2a-4c-bf-fa-c7-32\WpadDecisionReason = "1" C:\Windows\SysWOW64\rebrandrebrand.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2a-4c-bf-fa-c7-32\WpadDecision = "0" C:\Windows\SysWOW64\rebrandrebrand.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{064763DF-A25E-4BED-A124-A3EF5B565EB6}\WpadDecisionTime = e01f78dee384da01 C:\Windows\SysWOW64\rebrandrebrand.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{064763DF-A25E-4BED-A124-A3EF5B565EB6}\WpadNetworkName = "Network 3" C:\Windows\SysWOW64\rebrandrebrand.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{064763DF-A25E-4BED-A124-A3EF5B565EB6}\2a-4c-bf-fa-c7-32 C:\Windows\SysWOW64\rebrandrebrand.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2a-4c-bf-fa-c7-32 C:\Windows\SysWOW64\rebrandrebrand.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2a-4c-bf-fa-c7-32\WpadDecisionTime = 80f6c89ee384da01 C:\Windows\SysWOW64\rebrandrebrand.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\2a-4c-bf-fa-c7-32\WpadDetectedUrl C:\Windows\SysWOW64\rebrandrebrand.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f008e000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\rebrandrebrand.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{064763DF-A25E-4BED-A124-A3EF5B565EB6}\WpadDecision = "0" C:\Windows\SysWOW64\rebrandrebrand.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{064763DF-A25E-4BED-A124-A3EF5B565EB6} C:\Windows\SysWOW64\rebrandrebrand.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b1cad1540ecb290088252635f8e130022eed7486eb128c0ca3d676945d60a9fc.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 3008 wrote to memory of 2136 N/A C:\Users\Admin\AppData\Local\Temp\b1cad1540ecb290088252635f8e130022eed7486eb128c0ca3d676945d60a9fc.exe C:\Users\Admin\AppData\Local\Temp\b1cad1540ecb290088252635f8e130022eed7486eb128c0ca3d676945d60a9fc.exe
PID 3008 wrote to memory of 2136 N/A C:\Users\Admin\AppData\Local\Temp\b1cad1540ecb290088252635f8e130022eed7486eb128c0ca3d676945d60a9fc.exe C:\Users\Admin\AppData\Local\Temp\b1cad1540ecb290088252635f8e130022eed7486eb128c0ca3d676945d60a9fc.exe
PID 3008 wrote to memory of 2136 N/A C:\Users\Admin\AppData\Local\Temp\b1cad1540ecb290088252635f8e130022eed7486eb128c0ca3d676945d60a9fc.exe C:\Users\Admin\AppData\Local\Temp\b1cad1540ecb290088252635f8e130022eed7486eb128c0ca3d676945d60a9fc.exe
PID 3008 wrote to memory of 2136 N/A C:\Users\Admin\AppData\Local\Temp\b1cad1540ecb290088252635f8e130022eed7486eb128c0ca3d676945d60a9fc.exe C:\Users\Admin\AppData\Local\Temp\b1cad1540ecb290088252635f8e130022eed7486eb128c0ca3d676945d60a9fc.exe
PID 2636 wrote to memory of 2620 N/A C:\Windows\SysWOW64\rebrandrebrand.exe C:\Windows\SysWOW64\rebrandrebrand.exe
PID 2636 wrote to memory of 2620 N/A C:\Windows\SysWOW64\rebrandrebrand.exe C:\Windows\SysWOW64\rebrandrebrand.exe
PID 2636 wrote to memory of 2620 N/A C:\Windows\SysWOW64\rebrandrebrand.exe C:\Windows\SysWOW64\rebrandrebrand.exe
PID 2636 wrote to memory of 2620 N/A C:\Windows\SysWOW64\rebrandrebrand.exe C:\Windows\SysWOW64\rebrandrebrand.exe

Processes

C:\Users\Admin\AppData\Local\Temp\b1cad1540ecb290088252635f8e130022eed7486eb128c0ca3d676945d60a9fc.exe

"C:\Users\Admin\AppData\Local\Temp\b1cad1540ecb290088252635f8e130022eed7486eb128c0ca3d676945d60a9fc.exe"

C:\Users\Admin\AppData\Local\Temp\b1cad1540ecb290088252635f8e130022eed7486eb128c0ca3d676945d60a9fc.exe

--34872623

C:\Windows\SysWOW64\rebrandrebrand.exe

"C:\Windows\SysWOW64\rebrandrebrand.exe"

C:\Windows\SysWOW64\rebrandrebrand.exe

--da5a7012

Network

Country Destination Domain Proto
PE 190.117.206.153:443 tcp
PE 190.117.206.153:443 tcp
PK 203.99.187.137:443 tcp
PK 203.99.187.137:443 tcp
CU 200.55.168.82:20 tcp
CU 200.55.168.82:20 tcp
US 70.32.94.58:8080 tcp

Files

memory/3008-0-0x0000000000240000-0x0000000000256000-memory.dmp

memory/3008-5-0x0000000000230000-0x0000000000240000-memory.dmp

memory/2636-11-0x00000000001D0000-0x00000000001E6000-memory.dmp

memory/3008-21-0x0000000000230000-0x0000000000240000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-04-02 09:52

Reported

2024-04-02 09:55

Platform

win10v2004-20240226-en

Max time kernel

141s

Max time network

165s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b1cad1540ecb290088252635f8e130022eed7486eb128c0ca3d676945d60a9fc.exe"

Signatures

Emotet

trojan banker emotet

Drops file in System32 directory

Description Indicator Process Target
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies C:\Windows\SysWOW64\capminimum.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 C:\Windows\SysWOW64\capminimum.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 C:\Windows\SysWOW64\capminimum.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE C:\Windows\SysWOW64\capminimum.exe N/A

Enumerates physical storage devices

Modifies data under HKEY_USERS

Description Indicator Process Target
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix C:\Windows\SysWOW64\capminimum.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\capminimum.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\capminimum.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b1cad1540ecb290088252635f8e130022eed7486eb128c0ca3d676945d60a9fc.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b1cad1540ecb290088252635f8e130022eed7486eb128c0ca3d676945d60a9fc.exe

"C:\Users\Admin\AppData\Local\Temp\b1cad1540ecb290088252635f8e130022eed7486eb128c0ca3d676945d60a9fc.exe"

C:\Users\Admin\AppData\Local\Temp\b1cad1540ecb290088252635f8e130022eed7486eb128c0ca3d676945d60a9fc.exe

--34872623

C:\Windows\SysWOW64\capminimum.exe

"C:\Windows\SysWOW64\capminimum.exe"

C:\Windows\SysWOW64\capminimum.exe

--8827b70e

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe

"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3928 --field-trial-handle=2252,i,16504368816373493055,9578615028378602855,262144 --variations-seed-version /prefetch:8

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 218.110.86.104.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 13.107.253.64:443 tcp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 57.162.23.2.in-addr.arpa udp
US 8.8.8.8:53 9.66.18.2.in-addr.arpa udp
PE 190.117.206.153:443 tcp
US 8.8.8.8:53 130.211.222.173.in-addr.arpa udp
PK 203.99.187.137:443 tcp
US 8.8.8.8:53 79.121.231.20.in-addr.arpa udp
US 8.8.8.8:53 29.243.111.52.in-addr.arpa udp
CU 200.55.168.82:20 tcp
US 70.32.94.58:8080 tcp
GB 213.138.100.98:8080 tcp
US 8.8.8.8:53 5.173.189.20.in-addr.arpa udp

Files

memory/3768-1-0x0000000000550000-0x0000000000560000-memory.dmp

memory/3768-0-0x00000000021E0000-0x00000000021F6000-memory.dmp

memory/2588-6-0x0000000000520000-0x0000000000536000-memory.dmp

memory/4908-11-0x0000000000E50000-0x0000000000E66000-memory.dmp

memory/2080-16-0x0000000000C60000-0x0000000000C76000-memory.dmp