Malware Analysis Report

2024-09-22 22:03

Sample ID 240615-c6vxzazglm
Target aca0085ca35935b713aca011c2c66a31_JaffaCakes118
SHA256 b7e698cb78f12461551004444c1dfaee41855bbbc48b1de4bb8120c30cf92d59
Tags
emotet 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

b7e698cb78f12461551004444c1dfaee41855bbbc48b1de4bb8120c30cf92d59

Threat Level: Known bad

The file aca0085ca35935b713aca011c2c66a31_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

emotet 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

2024-06-15 02:41

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-15 02:41

Reported

2024-06-15 02:44

Platform

win7-20240508-en

Max time kernel

144s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\aca0085ca35935b713aca011c2c66a31_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\portalsmall.exe N/A

Enumerates physical storage devices

Modifies data under HKEY_USERS

Description Indicator Process Target
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\de-80-0a-d1-54-46\WpadDecisionTime = 006edca6cdbeda01 C:\Windows\SysWOW64\portalsmall.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\de-80-0a-d1-54-46\WpadDecision = "0" C:\Windows\SysWOW64\portalsmall.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D1E6AAB7-D2FE-46B4-B8C7-DF3894AF7DEA}\WpadDecision = "0" C:\Windows\SysWOW64\portalsmall.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D1E6AAB7-D2FE-46B4-B8C7-DF3894AF7DEA}\WpadNetworkName = "Network 3" C:\Windows\SysWOW64\portalsmall.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\de-80-0a-d1-54-46 C:\Windows\SysWOW64\portalsmall.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\de-80-0a-d1-54-46\WpadDecisionReason = "1" C:\Windows\SysWOW64\portalsmall.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\portalsmall.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad C:\Windows\SysWOW64\portalsmall.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\portalsmall.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\portalsmall.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" C:\Windows\SysWOW64\portalsmall.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\portalsmall.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D1E6AAB7-D2FE-46B4-B8C7-DF3894AF7DEA}\WpadDecisionReason = "1" C:\Windows\SysWOW64\portalsmall.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D1E6AAB7-D2FE-46B4-B8C7-DF3894AF7DEA}\WpadDecisionTime = 006edca6cdbeda01 C:\Windows\SysWOW64\portalsmall.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix C:\Windows\SysWOW64\portalsmall.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\portalsmall.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D1E6AAB7-D2FE-46B4-B8C7-DF3894AF7DEA}\de-80-0a-d1-54-46 C:\Windows\SysWOW64\portalsmall.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0091000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\portalsmall.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{D1E6AAB7-D2FE-46B4-B8C7-DF3894AF7DEA} C:\Windows\SysWOW64\portalsmall.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections C:\Windows\SysWOW64\portalsmall.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\portalsmall.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\aca0085ca35935b713aca011c2c66a31_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\aca0085ca35935b713aca011c2c66a31_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\aca0085ca35935b713aca011c2c66a31_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\aca0085ca35935b713aca011c2c66a31_JaffaCakes118.exe

--adf7df9e

C:\Windows\SysWOW64\portalsmall.exe

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

C:\Windows\SysWOW64\portalsmall.exe

--cbd17991

Network

Country Destination Domain Proto
MX 187.188.166.192:80 tcp
MX 187.188.166.192:80 tcp
GB 88.215.2.29:80 tcp
GB 88.215.2.29:80 tcp
MX 187.137.162.145:443 tcp
MX 187.137.162.145:443 tcp

Files

memory/1812-0-0x0000000000400000-0x0000000000414000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-15 02:41

Reported

2024-06-15 02:44

Platform

win10v2004-20240611-en

Max time kernel

127s

Max time network

146s

Command Line

"C:\Users\Admin\AppData\Local\Temp\aca0085ca35935b713aca011c2c66a31_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\langsexec.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE C:\Windows\SysWOW64\langsexec.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies C:\Windows\SysWOW64\langsexec.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 C:\Windows\SysWOW64\langsexec.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\langsexec.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\langsexec.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\langsexec.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\aca0085ca35935b713aca011c2c66a31_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\aca0085ca35935b713aca011c2c66a31_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\aca0085ca35935b713aca011c2c66a31_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\aca0085ca35935b713aca011c2c66a31_JaffaCakes118.exe

--adf7df9e

C:\Windows\SysWOW64\langsexec.exe

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

C:\Windows\SysWOW64\langsexec.exe

--ef2153cc

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 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
NL 23.62.61.194:443 www.bing.com tcp
US 8.8.8.8:53 23.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
MX 187.188.166.192:80 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 8.8.8.8:53 0.204.248.87.in-addr.arpa udp
GB 88.215.2.29:80 tcp
US 8.8.8.8:53 249.197.17.2.in-addr.arpa udp
MX 187.137.162.145:443 tcp
US 65.49.60.163:443 tcp
US 45.33.35.103:8080 tcp
AU 43.229.62.186:8080 tcp

Files

memory/372-0-0x0000000000400000-0x0000000000414000-memory.dmp