Malware Analysis Report

2024-09-22 23:23

Sample ID 240526-n2rkjaaa4v
Target 756517b66f383614847c911c741b5f6b_JaffaCakes118
SHA256 1f552efb5aa1cca30b22e3e8eada588387d599188c7895ee79ef6b4cee4d88b3
Tags
emotet epoch2 banker trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

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

1f552efb5aa1cca30b22e3e8eada588387d599188c7895ee79ef6b4cee4d88b3

Threat Level: Known bad

The file 756517b66f383614847c911c741b5f6b_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

emotet epoch2 banker trojan

Emotet

Drops file in System32 directory

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Modifies data under HKEY_USERS

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: RenamesItself

Suspicious use of SetWindowsHookEx

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-05-26 11:53

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-26 11:53

Reported

2024-05-26 11:56

Platform

win7-20240508-en

Max time kernel

150s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\756517b66f383614847c911c741b5f6b_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\malertmaker.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 C:\Windows\SysWOW64\malertmaker.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ca-02-5b-62-74-e4 C:\Windows\SysWOW64\malertmaker.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ca-02-5b-62-74-e4\WpadDetectedUrl C:\Windows\SysWOW64\malertmaker.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{02FFA379-EAE0-4C23-A05C-D513EEABB480}\WpadDecisionTime = c06839ae63afda01 C:\Windows\SysWOW64\malertmaker.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\malertmaker.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections C:\Windows\SysWOW64\malertmaker.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\malertmaker.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ca-02-5b-62-74-e4\WpadDecisionReason = "1" C:\Windows\SysWOW64\malertmaker.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{02FFA379-EAE0-4C23-A05C-D513EEABB480}\WpadNetworkName = "Network 3" C:\Windows\SysWOW64\malertmaker.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ca-02-5b-62-74-e4\WpadDecisionTime = c0604f7363afda01 C:\Windows\SysWOW64\malertmaker.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ca-02-5b-62-74-e4\WpadDecision = "0" C:\Windows\SysWOW64\malertmaker.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\malertmaker.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0098000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\malertmaker.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{02FFA379-EAE0-4C23-A05C-D513EEABB480}\WpadDecisionReason = "1" C:\Windows\SysWOW64\malertmaker.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{02FFA379-EAE0-4C23-A05C-D513EEABB480}\WpadDecision = "0" C:\Windows\SysWOW64\malertmaker.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" C:\Windows\SysWOW64\malertmaker.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{02FFA379-EAE0-4C23-A05C-D513EEABB480} C:\Windows\SysWOW64\malertmaker.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\ca-02-5b-62-74-e4\WpadDecisionTime = c06839ae63afda01 C:\Windows\SysWOW64\malertmaker.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix C:\Windows\SysWOW64\malertmaker.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\malertmaker.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\malertmaker.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000004000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0098000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\malertmaker.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{02FFA379-EAE0-4C23-A05C-D513EEABB480}\ca-02-5b-62-74-e4 C:\Windows\SysWOW64\malertmaker.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\malertmaker.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{02FFA379-EAE0-4C23-A05C-D513EEABB480}\WpadDecisionTime = c0604f7363afda01 C:\Windows\SysWOW64\malertmaker.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\756517b66f383614847c911c741b5f6b_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\756517b66f383614847c911c741b5f6b_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\756517b66f383614847c911c741b5f6b_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\756517b66f383614847c911c741b5f6b_JaffaCakes118.exe

--6c355abb

C:\Windows\SysWOW64\malertmaker.exe

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

C:\Windows\SysWOW64\malertmaker.exe

--2418104b

Network

Country Destination Domain Proto
AT 212.186.191.177:80 tcp
AT 212.186.191.177:80 tcp
ES 91.242.138.5:80 tcp
ES 91.242.138.5:80 tcp
US 173.13.135.102:80 tcp
US 173.13.135.102:80 tcp
CN 59.110.18.236:443 tcp
CN 59.110.18.236:443 tcp
US 8.8.8.8:53 udp

Files

memory/2344-0-0x0000000000390000-0x00000000003A7000-memory.dmp

memory/2344-5-0x0000000000340000-0x0000000000351000-memory.dmp

memory/2944-6-0x0000000000520000-0x0000000000537000-memory.dmp

memory/2696-11-0x0000000000500000-0x0000000000517000-memory.dmp

memory/2944-16-0x0000000000400000-0x000000000049F000-memory.dmp

memory/2700-17-0x0000000000530000-0x0000000000547000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-26 11:53

Reported

2024-05-26 11:56

Platform

win10v2004-20240508-en

Max time kernel

145s

Max time network

155s

Command Line

"C:\Users\Admin\AppData\Local\Temp\756517b66f383614847c911c741b5f6b_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\luawow.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE C:\Windows\SysWOW64\luawow.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies C:\Windows\SysWOW64\luawow.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 C:\Windows\SysWOW64\luawow.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\luawow.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\luawow.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\luawow.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\756517b66f383614847c911c741b5f6b_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\756517b66f383614847c911c741b5f6b_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\756517b66f383614847c911c741b5f6b_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\756517b66f383614847c911c741b5f6b_JaffaCakes118.exe

--6c355abb

C:\Windows\SysWOW64\luawow.exe

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

C:\Windows\SysWOW64\luawow.exe

--611abd39

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 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 101.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 134.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
AT 212.186.191.177:80 tcp
US 8.8.8.8:53 31.251.17.2.in-addr.arpa udp
ES 91.242.138.5:80 tcp
US 8.8.8.8:53 82.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 173.13.135.102:80 tcp
US 8.8.8.8:53 43.229.111.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
CN 59.110.18.236:443 tcp
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
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 45.56.88.91:443 tcp
GB 51.68.220.244:8080 tcp

Files

memory/4928-0-0x00000000023C0000-0x00000000023D7000-memory.dmp

memory/4928-5-0x00000000021F0000-0x0000000002201000-memory.dmp

memory/3448-6-0x00000000006A0000-0x00000000006B7000-memory.dmp

memory/3448-11-0x0000000000400000-0x000000000049F000-memory.dmp

memory/1152-13-0x0000000000F80000-0x0000000000F97000-memory.dmp

C:\ProgramData\Microsoft\Crypto\RSA\S-1-5-18\01edac8cae020cd42786e051ebe37b67_6833eb7b-8d4b-4cdd-9502-9bbf7fc1cf9f

MD5 5f22af36aff2e43cacf9a56ba4166900
SHA1 914ede992f5edd5523a3a127a88f7bca60c69665
SHA256 e0671a7dbf4fca7d937ff1300471c5823a57786710faba9f85daf9e843281e3a
SHA512 f7fd666c6dcdae2bf235bb2b00791cf00519579e3181e5e3fd67e70c9a4027d48335b6498f6116efa5e513b7750b0eebeb484a63555d277939923bb48d4f3bc8

memory/4984-20-0x0000000000DA0000-0x0000000000DB7000-memory.dmp