Malware Analysis Report

2025-01-03 05:50

Sample ID 240504-lxbbmsae5x
Target 1231b5eec3313cfa095756fa5aaf1b19_JaffaCakes118
SHA256 03ecef991175f232bdf1326550ac5c554c6298108d163d5d74782d2074ea1aea
Tags
emotet epoch1 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

03ecef991175f232bdf1326550ac5c554c6298108d163d5d74782d2074ea1aea

Threat Level: Known bad

The file 1231b5eec3313cfa095756fa5aaf1b19_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

emotet epoch1 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

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-04 09:54

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-04 09:54

Reported

2024-05-04 09:56

Platform

win7-20240221-en

Max time kernel

148s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1231b5eec3313cfa095756fa5aaf1b19_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\groupmore.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\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\groupmore.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\groupmore.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" C:\Windows\SysWOW64\groupmore.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3e-e3-d0-4c-ca-45\WpadDecisionTime = b0f7231a099eda01 C:\Windows\SysWOW64\groupmore.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BB2EAF90-A9C8-4D33-81CC-68495072DB13}\WpadDecisionTime = f0af4659099eda01 C:\Windows\SysWOW64\groupmore.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f008f000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\groupmore.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BB2EAF90-A9C8-4D33-81CC-68495072DB13}\WpadDecisionReason = "1" C:\Windows\SysWOW64\groupmore.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BB2EAF90-A9C8-4D33-81CC-68495072DB13}\WpadDecision = "0" C:\Windows\SysWOW64\groupmore.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3e-e3-d0-4c-ca-45 C:\Windows\SysWOW64\groupmore.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BB2EAF90-A9C8-4D33-81CC-68495072DB13}\3e-e3-d0-4c-ca-45 C:\Windows\SysWOW64\groupmore.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix C:\Windows\SysWOW64\groupmore.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\groupmore.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections C:\Windows\SysWOW64\groupmore.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\groupmore.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\groupmore.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3e-e3-d0-4c-ca-45\WpadDecision = "0" C:\Windows\SysWOW64\groupmore.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad C:\Windows\SysWOW64\groupmore.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BB2EAF90-A9C8-4D33-81CC-68495072DB13}\WpadDecisionTime = b0f7231a099eda01 C:\Windows\SysWOW64\groupmore.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3e-e3-d0-4c-ca-45\WpadDecisionTime = f0af4659099eda01 C:\Windows\SysWOW64\groupmore.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BB2EAF90-A9C8-4D33-81CC-68495072DB13} C:\Windows\SysWOW64\groupmore.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{BB2EAF90-A9C8-4D33-81CC-68495072DB13}\WpadNetworkName = "Network 3" C:\Windows\SysWOW64\groupmore.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3e-e3-d0-4c-ca-45\WpadDecisionReason = "1" C:\Windows\SysWOW64\groupmore.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\3e-e3-d0-4c-ca-45\WpadDetectedUrl C:\Windows\SysWOW64\groupmore.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000004000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f008f000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\groupmore.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\groupmore.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\1231b5eec3313cfa095756fa5aaf1b19_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\1231b5eec3313cfa095756fa5aaf1b19_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\1231b5eec3313cfa095756fa5aaf1b19_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\1231b5eec3313cfa095756fa5aaf1b19_JaffaCakes118.exe

--b707efc8

C:\Windows\SysWOW64\groupmore.exe

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

C:\Windows\SysWOW64\groupmore.exe

--a87c8e0a

Network

Country Destination Domain Proto
US 104.236.137.72:8080 tcp
US 104.236.137.72:8080 tcp
DE 172.104.233.225:8080 tcp
DE 172.104.233.225:8080 tcp
DE 81.169.140.14:443 tcp
DE 81.169.140.14:443 tcp
PL 213.189.36.51:8080 tcp
PL 213.189.36.51:8080 tcp
DE 87.106.77.40:7080 tcp

Files

memory/3016-0-0x00000000000F0000-0x0000000000107000-memory.dmp

memory/3016-5-0x0000000000090000-0x00000000000A1000-memory.dmp

memory/2952-6-0x00000000000B0000-0x00000000000C7000-memory.dmp

memory/2952-11-0x0000000000090000-0x00000000000A1000-memory.dmp

memory/2500-17-0x00000000000F0000-0x0000000000101000-memory.dmp

memory/2500-12-0x0000000000110000-0x0000000000127000-memory.dmp

memory/2952-18-0x0000000000C20000-0x0000000000C6F000-memory.dmp

memory/2556-19-0x0000000000270000-0x0000000000287000-memory.dmp

memory/2556-24-0x0000000000210000-0x0000000000221000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-04 09:54

Reported

2024-05-04 09:56

Platform

win10v2004-20240419-en

Max time kernel

133s

Max time network

141s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1231b5eec3313cfa095756fa5aaf1b19_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\IE C:\Windows\SysWOW64\runrun.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies C:\Windows\SysWOW64\runrun.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 C:\Windows\SysWOW64\runrun.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 C:\Windows\SysWOW64\runrun.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\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\runrun.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix C:\Windows\SysWOW64\runrun.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\runrun.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\1231b5eec3313cfa095756fa5aaf1b19_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\1231b5eec3313cfa095756fa5aaf1b19_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\1231b5eec3313cfa095756fa5aaf1b19_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\1231b5eec3313cfa095756fa5aaf1b19_JaffaCakes118.exe

--b707efc8

C:\Windows\SysWOW64\runrun.exe

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

C:\Windows\SysWOW64\runrun.exe

--c3ed9952

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 2.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
NL 23.62.61.97:443 www.bing.com tcp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 97.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 104.236.137.72:8080 tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
DE 172.104.233.225:8080 tcp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
DE 81.169.140.14:443 tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 49.15.97.104.in-addr.arpa udp
PL 213.189.36.51:8080 tcp
US 8.8.8.8:53 13.227.111.52.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
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
DE 87.106.77.40:7080 tcp
IE 86.42.166.147:80 tcp

Files

memory/2852-0-0x00000000012D0000-0x00000000012E7000-memory.dmp

memory/2852-5-0x00000000012B0000-0x00000000012C1000-memory.dmp

memory/4360-6-0x00000000006A0000-0x00000000006B7000-memory.dmp

memory/4360-11-0x0000000000680000-0x0000000000691000-memory.dmp

memory/976-13-0x0000000001520000-0x0000000001537000-memory.dmp

memory/976-18-0x00000000011D0000-0x00000000011E1000-memory.dmp

memory/4360-19-0x0000000000EA0000-0x0000000000EEF000-memory.dmp

C:\ProgramData\Microsoft\Crypto\RSA\S-1-5-18\8049f5751f521006eea6c344abdeca4a_54631303-6cba-4b22-b333-215df416769a

MD5 f730d90525420c3cc17e473d8c01f71c
SHA1 d1a3493df7b5f92e4df5a65b0ef3dc24a8744d63
SHA256 d7cba870504d6fca4e8bc2a965f8de5586e0af5886780deba265275e53d929f9
SHA512 09d865e1087ac655cc246665399febadd0c32415aa21370db6d9b8129ccaf1109d39e24f724fbce35dffebea8bada6e1a99e544ce4c09e2c990e026c00697645

memory/2772-21-0x0000000001140000-0x0000000001157000-memory.dmp

memory/2772-26-0x00000000010C0000-0x00000000010D1000-memory.dmp