Malware Analysis Report

2024-09-22 23:11

Sample ID 240530-jjc7zaba4z
Target 837830a6fa26c07a8d373ca1c2b1982b_JaffaCakes118
SHA256 e36375417c5c4bd1f40fec1e6786a793f8eeb2fc79b60d1430d2d27d300f7456
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

e36375417c5c4bd1f40fec1e6786a793f8eeb2fc79b60d1430d2d27d300f7456

Threat Level: Known bad

The file 837830a6fa26c07a8d373ca1c2b1982b_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 behavior: EnumeratesProcesses

Suspicious behavior: RenamesItself

Suspicious use of WriteProcessMemory

Modifies data under HKEY_USERS

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-05-30 07:41

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-30 07:41

Reported

2024-05-30 07:44

Platform

win7-20240221-en

Max time kernel

146s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\837830a6fa26c07a8d373ca1c2b1982b_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\memonetsh.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 C:\Windows\SysWOW64\memonetsh.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad C:\Windows\SysWOW64\memonetsh.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\memonetsh.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\66-55-12-58-29-b7\WpadDecisionTime = 2052f4dc64b2da01 C:\Windows\SysWOW64\memonetsh.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7C858C43-4292-41AA-99F4-32E1CDB91BFF}\WpadDecisionTime = 00e711ff64b2da01 C:\Windows\SysWOW64\memonetsh.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\66-55-12-58-29-b7\WpadDecisionReason = "1" C:\Windows\SysWOW64\memonetsh.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\memonetsh.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7C858C43-4292-41AA-99F4-32E1CDB91BFF}\WpadDecisionTime = 2052f4dc64b2da01 C:\Windows\SysWOW64\memonetsh.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7C858C43-4292-41AA-99F4-32E1CDB91BFF}\66-55-12-58-29-b7 C:\Windows\SysWOW64\memonetsh.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\memonetsh.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7C858C43-4292-41AA-99F4-32E1CDB91BFF}\WpadNetworkName = "Network 3" C:\Windows\SysWOW64\memonetsh.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\memonetsh.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7C858C43-4292-41AA-99F4-32E1CDB91BFF} C:\Windows\SysWOW64\memonetsh.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7C858C43-4292-41AA-99F4-32E1CDB91BFF}\WpadDecisionReason = "1" C:\Windows\SysWOW64\memonetsh.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections C:\Windows\SysWOW64\memonetsh.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000004000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00e6000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\memonetsh.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\66-55-12-58-29-b7\WpadDetectedUrl C:\Windows\SysWOW64\memonetsh.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\memonetsh.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00e6000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\memonetsh.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\66-55-12-58-29-b7\WpadDecision = "0" C:\Windows\SysWOW64\memonetsh.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\66-55-12-58-29-b7 C:\Windows\SysWOW64\memonetsh.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\66-55-12-58-29-b7\WpadDecisionTime = 00e711ff64b2da01 C:\Windows\SysWOW64\memonetsh.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix C:\Windows\SysWOW64\memonetsh.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" C:\Windows\SysWOW64\memonetsh.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{7C858C43-4292-41AA-99F4-32E1CDB91BFF}\WpadDecision = "0" C:\Windows\SysWOW64\memonetsh.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\837830a6fa26c07a8d373ca1c2b1982b_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\837830a6fa26c07a8d373ca1c2b1982b_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\837830a6fa26c07a8d373ca1c2b1982b_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\837830a6fa26c07a8d373ca1c2b1982b_JaffaCakes118.exe

--44cb77cd

C:\Windows\SysWOW64\memonetsh.exe

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

C:\Windows\SysWOW64\memonetsh.exe

--2613bcae

Network

Country Destination Domain Proto
US 65.23.154.17:8080 tcp
US 65.23.154.17:8080 tcp
DE 144.76.56.36:8080 tcp
DE 144.76.56.36:8080 tcp
DE 78.47.106.72:8080 tcp
DE 78.47.106.72:8080 tcp
GB 178.79.161.166:443 tcp
GB 178.79.161.166:443 tcp
US 192.241.220.155:8080 tcp
US 192.241.220.155:8080 tcp
CZ 37.157.194.134:443 37.157.194.134 tcp
DE 165.227.156.155:443 165.227.156.155 tcp
RU 178.210.51.222:8080 tcp

Files

memory/2276-0-0x0000000000250000-0x0000000000265000-memory.dmp

memory/2276-5-0x0000000000240000-0x0000000000250000-memory.dmp

memory/2616-11-0x00000000003E0000-0x00000000003F5000-memory.dmp

memory/2604-16-0x00000000003B0000-0x00000000003C5000-memory.dmp

memory/2912-21-0x0000000000400000-0x000000000042A000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-30 07:41

Reported

2024-05-30 07:44

Platform

win10v2004-20240508-en

Max time kernel

147s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\837830a6fa26c07a8d373ca1c2b1982b_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\ipmimsp.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE C:\Windows\SysWOW64\ipmimsp.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies C:\Windows\SysWOW64\ipmimsp.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 C:\Windows\SysWOW64\ipmimsp.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\ipmimsp.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\ipmimsp.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\ipmimsp.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\837830a6fa26c07a8d373ca1c2b1982b_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\837830a6fa26c07a8d373ca1c2b1982b_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\837830a6fa26c07a8d373ca1c2b1982b_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\837830a6fa26c07a8d373ca1c2b1982b_JaffaCakes118.exe

--44cb77cd

C:\Windows\SysWOW64\ipmimsp.exe

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

C:\Windows\SysWOW64\ipmimsp.exe

--6838ae9d

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
NL 23.62.61.161:443 www.bing.com tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 161.61.62.23.in-addr.arpa udp
US 65.23.154.17:8080 tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 35.15.31.184.in-addr.arpa udp
DE 144.76.56.36:8080 tcp
DE 78.47.106.72:8080 tcp
GB 178.79.161.166:443 tcp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 192.241.220.155:8080 tcp
CZ 37.157.194.134:443 37.157.194.134 tcp
US 8.8.8.8:53 134.194.157.37.in-addr.arpa udp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
DE 165.227.156.155:443 165.227.156.155 tcp
US 8.8.8.8:53 155.156.227.165.in-addr.arpa udp
RU 178.210.51.222:8080 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
FR 5.196.74.210:8080 tcp
EC 186.4.172.5:8080 tcp

Files

memory/2108-0-0x00000000022A0000-0x00000000022B5000-memory.dmp

memory/2108-5-0x0000000002170000-0x0000000002180000-memory.dmp

memory/1476-6-0x0000000000590000-0x00000000005A5000-memory.dmp

memory/2968-12-0x0000000000C50000-0x0000000000C65000-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/4864-18-0x0000000000F40000-0x0000000000F55000-memory.dmp

memory/1476-23-0x0000000000400000-0x000000000042A000-memory.dmp