Malware Analysis Report

2024-10-19 10:22

Sample ID 240617-yp1b1ssbjf
Target b9c32274be42fd6ad161ab31f742bc28_JaffaCakes118
SHA256 ee0a206415cce60f8b3afb29d8c17f86fe1923cbdf69812be139a3012b2fa24b
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

ee0a206415cce60f8b3afb29d8c17f86fe1923cbdf69812be139a3012b2fa24b

Threat Level: Known bad

The file b9c32274be42fd6ad161ab31f742bc28_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

emotet banker trojan

Emotet

Drops file in System32 directory

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Modifies data under HKEY_USERS

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: RenamesItself

Suspicious use of UnmapMainImage

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-17 19:58

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-17 19:58

Reported

2024-06-17 20:00

Platform

win7-20240220-en

Max time kernel

144s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b9c32274be42fd6ad161ab31f742bc28_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\ribbonexec.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\ProxyEnable = "0" C:\Windows\SysWOW64\ribbonexec.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AC3EB598-80B5-4567-A834-A2A57EF8954C} C:\Windows\SysWOW64\ribbonexec.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AC3EB598-80B5-4567-A834-A2A57EF8954C}\WpadNetworkName = "Network 3" C:\Windows\SysWOW64\ribbonexec.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections C:\Windows\SysWOW64\ribbonexec.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\ribbonexec.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\ribbonexec.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-66-0b-70-30-99\WpadDecisionTime = b04e94c5f0c0da01 C:\Windows\SysWOW64\ribbonexec.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\ribbonexec.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix C:\Windows\SysWOW64\ribbonexec.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad C:\Windows\SysWOW64\ribbonexec.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f013f000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\ribbonexec.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AC3EB598-80B5-4567-A834-A2A57EF8954C}\WpadDecisionTime = b04e94c5f0c0da01 C:\Windows\SysWOW64\ribbonexec.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-66-0b-70-30-99\WpadDecision = "0" C:\Windows\SysWOW64\ribbonexec.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\ribbonexec.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\ribbonexec.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AC3EB598-80B5-4567-A834-A2A57EF8954C}\WpadDecision = "0" C:\Windows\SysWOW64\ribbonexec.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-66-0b-70-30-99 C:\Windows\SysWOW64\ribbonexec.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AC3EB598-80B5-4567-A834-A2A57EF8954C}\36-66-0b-70-30-99 C:\Windows\SysWOW64\ribbonexec.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\36-66-0b-70-30-99\WpadDecisionReason = "1" C:\Windows\SysWOW64\ribbonexec.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\ribbonexec.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{AC3EB598-80B5-4567-A834-A2A57EF8954C}\WpadDecisionReason = "1" C:\Windows\SysWOW64\ribbonexec.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b9c32274be42fd6ad161ab31f742bc28_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b9c32274be42fd6ad161ab31f742bc28_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\b9c32274be42fd6ad161ab31f742bc28_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\b9c32274be42fd6ad161ab31f742bc28_JaffaCakes118.exe

--d7ea9177

C:\Windows\SysWOW64\ribbonexec.exe

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

C:\Windows\SysWOW64\ribbonexec.exe

--477010d9

Network

Country Destination Domain Proto
BG 95.42.189.34:443 tcp
BG 95.42.189.34:443 tcp
IN 125.99.106.225:80 tcp
IN 125.99.106.225:80 tcp
TN 41.227.243.107:80 tcp
TN 41.227.243.107:80 tcp

Files

memory/2960-0-0x00000000001B0000-0x00000000001C5000-memory.dmp

memory/2960-2-0x00000000001B0000-0x00000000001C5000-memory.dmp

memory/2960-3-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2200-4-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1804-5-0x0000000000400000-0x0000000000427000-memory.dmp

memory/2200-8-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2112-9-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2112-10-0x0000000000400000-0x0000000000427000-memory.dmp

memory/2112-11-0x0000000000400000-0x0000000000414000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-17 19:58

Reported

2024-06-17 20:00

Platform

win10v2004-20240611-en

Max time kernel

149s

Max time network

152s

Command Line

"C:\Users\Admin\AppData\Local\Temp\b9c32274be42fd6ad161ab31f742bc28_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\History\History.IE5 C:\Windows\SysWOW64\smallviewer.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 C:\Windows\SysWOW64\smallviewer.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE C:\Windows\SysWOW64\smallviewer.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies C:\Windows\SysWOW64\smallviewer.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\smallviewer.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\smallviewer.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\smallviewer.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\b9c32274be42fd6ad161ab31f742bc28_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\b9c32274be42fd6ad161ab31f742bc28_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\b9c32274be42fd6ad161ab31f742bc28_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\b9c32274be42fd6ad161ab31f742bc28_JaffaCakes118.exe

--d7ea9177

C:\Windows\SysWOW64\smallviewer.exe

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

C:\Windows\SysWOW64\smallviewer.exe

--3dab36ef

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 68.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.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 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
BG 95.42.189.34:443 tcp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 107.12.20.2.in-addr.arpa udp
IN 125.99.106.225:80 tcp
US 8.8.8.8:53 100.58.20.217.in-addr.arpa udp
TN 41.227.243.107:80 tcp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp
AR 190.18.153.249:80 tcp
MX 189.150.218.69:8080 tcp
US 8.8.8.8:53 28.173.189.20.in-addr.arpa udp

Files

memory/2356-0-0x0000000000590000-0x00000000005A5000-memory.dmp

memory/2356-4-0x0000000000590000-0x00000000005A5000-memory.dmp

memory/2356-3-0x0000000000400000-0x0000000000427000-memory.dmp

memory/2356-1-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2944-5-0x0000000000400000-0x0000000000427000-memory.dmp

memory/2944-6-0x0000000000400000-0x0000000000427000-memory.dmp

memory/4776-7-0x0000000000400000-0x0000000000427000-memory.dmp

memory/4776-9-0x0000000000400000-0x0000000000427000-memory.dmp

memory/2944-11-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3968-13-0x0000000000400000-0x0000000000427000-memory.dmp

memory/3968-14-0x0000000000400000-0x0000000000427000-memory.dmp

memory/3968-17-0x0000000000400000-0x0000000000427000-memory.dmp

memory/3968-18-0x0000000000400000-0x0000000000427000-memory.dmp