Malware Analysis Report

2025-01-03 06:13

Sample ID 240522-kzdzwaaa89
Target 66bac30c44aea6d125048e6a31ab6043_JaffaCakes118
SHA256 07c58ac7886991fef6439b5e5270ca1d9e1086ce829eb75d6c0e608a6075d3e1
Tags
emotet 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

07c58ac7886991fef6439b5e5270ca1d9e1086ce829eb75d6c0e608a6075d3e1

Threat Level: Known bad

The file 66bac30c44aea6d125048e6a31ab6043_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

emotet banker trojan

Emotet

Drops file in System32 directory

Enumerates physical storage devices

Unsigned PE

Modifies data under HKEY_USERS

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: RenamesItself

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-22 09:01

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-22 09:01

Reported

2024-05-22 09:04

Platform

win7-20240221-en

Max time kernel

130s

Max time network

145s

Command Line

"C:\Users\Admin\AppData\Local\Temp\66bac30c44aea6d125048e6a31ab6043_JaffaCakes118.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\wmistrdefrag.exe N/A

Enumerates physical storage devices

Modifies data under HKEY_USERS

Description Indicator Process Target
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5B3D4CC0-94C3-48DB-B0C9-F2E6D1D2AAB0} C:\Windows\SysWOW64\wmistrdefrag.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5B3D4CC0-94C3-48DB-B0C9-F2E6D1D2AAB0}\WpadDecision = "0" C:\Windows\SysWOW64\wmistrdefrag.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-dd-42-11-1f-8d C:\Windows\SysWOW64\wmistrdefrag.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5B3D4CC0-94C3-48DB-B0C9-F2E6D1D2AAB0}\5e-dd-42-11-1f-8d C:\Windows\SysWOW64\wmistrdefrag.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\wmistrdefrag.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\wmistrdefrag.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\wmistrdefrag.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad C:\Windows\SysWOW64\wmistrdefrag.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-dd-42-11-1f-8d\WpadDecision = "0" C:\Windows\SysWOW64\wmistrdefrag.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\wmistrdefrag.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\wmistrdefrag.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-dd-42-11-1f-8d\WpadDecisionTime = 800c68bb26acda01 C:\Windows\SysWOW64\wmistrdefrag.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" C:\Windows\SysWOW64\wmistrdefrag.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0075000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\wmistrdefrag.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5B3D4CC0-94C3-48DB-B0C9-F2E6D1D2AAB0}\WpadDecisionReason = "1" C:\Windows\SysWOW64\wmistrdefrag.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5B3D4CC0-94C3-48DB-B0C9-F2E6D1D2AAB0}\WpadNetworkName = "Network 3" C:\Windows\SysWOW64\wmistrdefrag.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\5e-dd-42-11-1f-8d\WpadDecisionReason = "1" C:\Windows\SysWOW64\wmistrdefrag.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections C:\Windows\SysWOW64\wmistrdefrag.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix C:\Windows\SysWOW64\wmistrdefrag.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\wmistrdefrag.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{5B3D4CC0-94C3-48DB-B0C9-F2E6D1D2AAB0}\WpadDecisionTime = 800c68bb26acda01 C:\Windows\SysWOW64\wmistrdefrag.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\66bac30c44aea6d125048e6a31ab6043_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\66bac30c44aea6d125048e6a31ab6043_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\66bac30c44aea6d125048e6a31ab6043_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\66bac30c44aea6d125048e6a31ab6043_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\66bac30c44aea6d125048e6a31ab6043_JaffaCakes118.exe"

C:\Windows\SysWOW64\wmistrdefrag.exe

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

C:\Windows\SysWOW64\wmistrdefrag.exe

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

Network

Country Destination Domain Proto
ZA 197.245.46.11:80 tcp
ZA 197.245.46.11:80 tcp
CA 216.46.44.93:80 tcp
CA 216.46.44.93:80 tcp
US 96.232.248.52:80 tcp
US 96.232.248.52:80 tcp

Files

memory/2320-6-0x00000000002E0000-0x0000000000300000-memory.dmp

memory/2320-5-0x00000000002C0000-0x00000000002CD000-memory.dmp

memory/2320-4-0x00000000002D0000-0x00000000002DD000-memory.dmp

memory/2320-0-0x00000000002D0000-0x00000000002DD000-memory.dmp

memory/1212-11-0x0000000000250000-0x000000000025D000-memory.dmp

memory/1212-7-0x0000000000250000-0x000000000025D000-memory.dmp

memory/1212-13-0x0000000000260000-0x0000000000280000-memory.dmp

memory/1212-12-0x0000000000240000-0x000000000024D000-memory.dmp

memory/2320-14-0x00000000002C0000-0x00000000002CD000-memory.dmp

memory/2484-15-0x0000000000260000-0x000000000026D000-memory.dmp

memory/2484-21-0x00000000003C0000-0x00000000003E0000-memory.dmp

memory/2484-20-0x0000000000250000-0x000000000025D000-memory.dmp

memory/2484-19-0x0000000000260000-0x000000000026D000-memory.dmp

memory/2624-26-0x0000000000310000-0x000000000031D000-memory.dmp

memory/2624-22-0x0000000000310000-0x000000000031D000-memory.dmp

memory/2624-28-0x00000000003B0000-0x00000000003D0000-memory.dmp

memory/2624-27-0x0000000000300000-0x000000000030D000-memory.dmp

memory/2484-29-0x0000000000250000-0x000000000025D000-memory.dmp

memory/1212-31-0x0000000000240000-0x000000000024D000-memory.dmp

memory/1212-30-0x0000000000400000-0x000000000041B000-memory.dmp

memory/2624-32-0x0000000000300000-0x000000000030D000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-22 09:01

Reported

2024-05-22 09:04

Platform

win10v2004-20240426-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\66bac30c44aea6d125048e6a31ab6043_JaffaCakes118.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\INetCache\Content.IE5 C:\Windows\SysWOW64\prxyshlp.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE C:\Windows\SysWOW64\prxyshlp.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies C:\Windows\SysWOW64\prxyshlp.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 C:\Windows\SysWOW64\prxyshlp.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\prxyshlp.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\prxyshlp.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\prxyshlp.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\66bac30c44aea6d125048e6a31ab6043_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\66bac30c44aea6d125048e6a31ab6043_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\66bac30c44aea6d125048e6a31ab6043_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\66bac30c44aea6d125048e6a31ab6043_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\66bac30c44aea6d125048e6a31ab6043_JaffaCakes118.exe"

C:\Windows\SysWOW64\prxyshlp.exe

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

C:\Windows\SysWOW64\prxyshlp.exe

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 72.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
ZA 197.245.46.11:80 tcp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
CA 216.46.44.93:80 tcp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 96.232.248.52:80 tcp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
ZA 41.169.36.237:80 tcp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
ZA 197.87.144.210:8080 tcp
BS 24.244.177.40:8080 tcp

Files

memory/4428-0-0x0000000002030000-0x000000000203D000-memory.dmp

memory/4428-5-0x0000000002040000-0x000000000204D000-memory.dmp

memory/4428-1-0x0000000002040000-0x000000000204D000-memory.dmp

memory/4428-6-0x0000000002050000-0x0000000002070000-memory.dmp

memory/3740-12-0x0000000002030000-0x000000000203D000-memory.dmp

memory/4428-13-0x0000000002030000-0x000000000203D000-memory.dmp

memory/5036-20-0x0000000000D10000-0x0000000000D30000-memory.dmp

memory/5036-19-0x0000000000CF0000-0x0000000000CFD000-memory.dmp

memory/5036-18-0x0000000000D00000-0x0000000000D0D000-memory.dmp

memory/5036-15-0x0000000000D00000-0x0000000000D0D000-memory.dmp

memory/4020-27-0x0000000000E50000-0x0000000000E70000-memory.dmp

memory/4020-26-0x0000000000E30000-0x0000000000E3D000-memory.dmp

memory/4020-25-0x0000000000E40000-0x0000000000E4D000-memory.dmp

memory/4020-21-0x0000000000E40000-0x0000000000E4D000-memory.dmp

memory/5036-28-0x0000000000CF0000-0x0000000000CFD000-memory.dmp

memory/3740-30-0x0000000002030000-0x000000000203D000-memory.dmp

memory/3740-29-0x0000000000400000-0x000000000041B000-memory.dmp

memory/4020-31-0x0000000000E30000-0x0000000000E3D000-memory.dmp