Malware Analysis Report

2025-01-03 06:14

Sample ID 240522-n2rkjafb49
Target 672c0dc9f55bab7e0d5b1dc992335fe7_JaffaCakes118
SHA256 55ef9ddff5ee938594dcd2f78498e9caa58c6fd7edd5087e81f7f80453f12fbf
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

55ef9ddff5ee938594dcd2f78498e9caa58c6fd7edd5087e81f7f80453f12fbf

Threat Level: Known bad

The file 672c0dc9f55bab7e0d5b1dc992335fe7_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

emotet banker trojan

Emotet

Drops file in System32 directory

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: RenamesItself

Suspicious use of UnmapMainImage

Suspicious use of WriteProcessMemory

Modifies data under HKEY_USERS

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-22 11:53

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-22 11:53

Reported

2024-05-22 12:50

Platform

win7-20240221-en

Max time kernel

143s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\672c0dc9f55bab7e0d5b1dc992335fe7_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\soundser.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\{A4877036-7BA5-424E-A337-371AA4D3D5B4}\WpadDecision = "0" C:\Windows\SysWOW64\soundser.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A4877036-7BA5-424E-A337-371AA4D3D5B4}\WpadNetworkName = "Network 3" C:\Windows\SysWOW64\soundser.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-16-0e-00-7c-ec C:\Windows\SysWOW64\soundser.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections C:\Windows\SysWOW64\soundser.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\soundser.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\soundser.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad C:\Windows\SysWOW64\soundser.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A4877036-7BA5-424E-A337-371AA4D3D5B4}\WpadDecisionTime = 80f40e4946acda01 C:\Windows\SysWOW64\soundser.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-16-0e-00-7c-ec\WpadDecision = "0" C:\Windows\SysWOW64\soundser.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\soundser.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f007e000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\soundser.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-16-0e-00-7c-ec\WpadDecisionReason = "1" C:\Windows\SysWOW64\soundser.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A4877036-7BA5-424E-A337-371AA4D3D5B4}\72-16-0e-00-7c-ec C:\Windows\SysWOW64\soundser.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\soundser.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\soundser.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\soundser.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" C:\Windows\SysWOW64\soundser.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A4877036-7BA5-424E-A337-371AA4D3D5B4} C:\Windows\SysWOW64\soundser.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix C:\Windows\SysWOW64\soundser.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{A4877036-7BA5-424E-A337-371AA4D3D5B4}\WpadDecisionReason = "1" C:\Windows\SysWOW64\soundser.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\72-16-0e-00-7c-ec\WpadDecisionTime = 80f40e4946acda01 C:\Windows\SysWOW64\soundser.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\672c0dc9f55bab7e0d5b1dc992335fe7_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\672c0dc9f55bab7e0d5b1dc992335fe7_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\672c0dc9f55bab7e0d5b1dc992335fe7_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\672c0dc9f55bab7e0d5b1dc992335fe7_JaffaCakes118.exe

--497b6419

C:\Windows\SysWOW64\soundser.exe

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

C:\Windows\SysWOW64\soundser.exe

--6e4482e3

Network

Country Destination Domain Proto
QA 37.211.38.50:80 tcp
QA 37.211.38.50:80 tcp
US 75.177.169.225:80 tcp
US 75.177.169.225:80 tcp
CA 50.99.132.7:465 tcp
CA 50.99.132.7:465 tcp

Files

memory/612-0-0x0000000000220000-0x0000000000231000-memory.dmp

memory/612-1-0x0000000000400000-0x0000000000414000-memory.dmp

memory/612-3-0x0000000000220000-0x0000000000231000-memory.dmp

memory/1116-4-0x0000000000400000-0x000000000042D000-memory.dmp

memory/1116-5-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1068-6-0x0000000000400000-0x000000000042D000-memory.dmp

memory/1116-9-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2564-10-0x0000000000400000-0x000000000042D000-memory.dmp

memory/2564-11-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2564-12-0x0000000000400000-0x000000000042D000-memory.dmp

memory/2564-13-0x0000000000400000-0x0000000000414000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-22 11:53

Reported

2024-05-22 12:50

Platform

win10v2004-20240426-en

Max time kernel

149s

Max time network

153s

Command Line

"C:\Users\Admin\AppData\Local\Temp\672c0dc9f55bab7e0d5b1dc992335fe7_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\adjusthotspot.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies C:\Windows\SysWOW64\adjusthotspot.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 C:\Windows\SysWOW64\adjusthotspot.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 C:\Windows\SysWOW64\adjusthotspot.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\adjusthotspot.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\adjusthotspot.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\adjusthotspot.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\672c0dc9f55bab7e0d5b1dc992335fe7_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\672c0dc9f55bab7e0d5b1dc992335fe7_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\672c0dc9f55bab7e0d5b1dc992335fe7_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\672c0dc9f55bab7e0d5b1dc992335fe7_JaffaCakes118.exe

--497b6419

C:\Windows\SysWOW64\adjusthotspot.exe

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

C:\Windows\SysWOW64\adjusthotspot.exe

--69374c16

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
NL 23.62.61.75:443 www.bing.com tcp
US 8.8.8.8:53 75.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
NL 23.62.61.75:443 www.bing.com tcp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
QA 37.211.38.50:80 tcp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.in-addr.arpa udp
US 75.177.169.225:80 tcp
US 8.8.8.8:53 91.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 52.111.229.48:443 tcp
MX 189.134.78.42:50000 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 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
QA 178.152.78.149:20 tcp
GB 217.199.175.217:8080 tcp
US 8.8.8.8:53 udp

Files

memory/2928-0-0x0000000000580000-0x0000000000591000-memory.dmp

memory/2928-3-0x0000000000580000-0x0000000000591000-memory.dmp

memory/2928-1-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2732-4-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3172-5-0x0000000000400000-0x000000000042D000-memory.dmp

memory/2732-8-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2284-10-0x0000000000400000-0x000000000042D000-memory.dmp

memory/2284-11-0x0000000000400000-0x000000000042D000-memory.dmp

memory/2284-14-0x0000000000400000-0x000000000042D000-memory.dmp

memory/2284-15-0x0000000000400000-0x000000000042D000-memory.dmp