Malware Analysis Report

2024-09-22 23:42

Sample ID 240606-b47nbaeh99
Target 99bc695dc4bc6fa0762b654487976cf6_JaffaCakes118
SHA256 9abca527a4f1a59ce0c88f0ce0b68b02a784aab563f3023e7fc338757668cc63
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

9abca527a4f1a59ce0c88f0ce0b68b02a784aab563f3023e7fc338757668cc63

Threat Level: Known bad

The file 99bc695dc4bc6fa0762b654487976cf6_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

Modifies data under HKEY_USERS

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: RenamesItself

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Analysis: static1

Detonation Overview

Reported

2024-06-06 01:42

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-06 01:42

Reported

2024-06-06 02:07

Platform

win7-20240221-en

Max time kernel

144s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\99bc695dc4bc6fa0762b654487976cf6_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\loopanumber.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\loopanumber.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad C:\Windows\SysWOW64\loopanumber.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0113000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\loopanumber.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-93-be-37-99-e0\WpadDecision = "0" C:\Windows\SysWOW64\loopanumber.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\loopanumber.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\loopanumber.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9577840E-7D39-4866-97CC-859C98EB9E74}\WpadNetworkName = "Network 3" C:\Windows\SysWOW64\loopanumber.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-93-be-37-99-e0\WpadDecisionReason = "1" C:\Windows\SysWOW64\loopanumber.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\loopanumber.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" C:\Windows\SysWOW64\loopanumber.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\loopanumber.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9577840E-7D39-4866-97CC-859C98EB9E74}\WpadDecisionTime = 50fa3805b6b7da01 C:\Windows\SysWOW64\loopanumber.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-93-be-37-99-e0 C:\Windows\SysWOW64\loopanumber.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9577840E-7D39-4866-97CC-859C98EB9E74}\4a-93-be-37-99-e0 C:\Windows\SysWOW64\loopanumber.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\4a-93-be-37-99-e0\WpadDecisionTime = 50fa3805b6b7da01 C:\Windows\SysWOW64\loopanumber.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\loopanumber.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections C:\Windows\SysWOW64\loopanumber.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\loopanumber.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9577840E-7D39-4866-97CC-859C98EB9E74} C:\Windows\SysWOW64\loopanumber.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9577840E-7D39-4866-97CC-859C98EB9E74}\WpadDecisionReason = "1" C:\Windows\SysWOW64\loopanumber.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{9577840E-7D39-4866-97CC-859C98EB9E74}\WpadDecision = "0" C:\Windows\SysWOW64\loopanumber.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\99bc695dc4bc6fa0762b654487976cf6_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\99bc695dc4bc6fa0762b654487976cf6_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\99bc695dc4bc6fa0762b654487976cf6_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\99bc695dc4bc6fa0762b654487976cf6_JaffaCakes118.exe

--658f6038

C:\Windows\SysWOW64\loopanumber.exe

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

C:\Windows\SysWOW64\loopanumber.exe

--ca0ba5dc

Network

Country Destination Domain Proto
US 142.93.88.16:443 142.93.88.16 tcp
BE 31.12.67.62:7080 tcp
BE 31.12.67.62:7080 tcp
HU 91.83.93.103:7080 tcp
HU 91.83.93.103:7080 tcp
US 104.131.208.175:8080 tcp
US 104.131.208.175:8080 tcp

Files

memory/1800-0-0x0000000000400000-0x0000000000414000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-06 01:42

Reported

2024-06-06 02:07

Platform

win10v2004-20240426-en

Max time kernel

135s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\99bc695dc4bc6fa0762b654487976cf6_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\INetCookies C:\Windows\SysWOW64\svcguidtenant.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 C:\Windows\SysWOW64\svcguidtenant.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 C:\Windows\SysWOW64\svcguidtenant.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE C:\Windows\SysWOW64\svcguidtenant.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\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\svcguidtenant.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\svcguidtenant.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix C:\Windows\SysWOW64\svcguidtenant.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\99bc695dc4bc6fa0762b654487976cf6_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\99bc695dc4bc6fa0762b654487976cf6_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\99bc695dc4bc6fa0762b654487976cf6_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\99bc695dc4bc6fa0762b654487976cf6_JaffaCakes118.exe

--658f6038

C:\Windows\SysWOW64\svcguidtenant.exe

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

C:\Windows\SysWOW64\svcguidtenant.exe

--2cdb0e09

Network

Country Destination Domain Proto
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 142.93.88.16:443 142.93.88.16 tcp
US 8.8.8.8:53 16.88.93.142.in-addr.arpa udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
BE 31.12.67.62:7080 tcp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
HU 91.83.93.103:7080 tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 104.131.208.175:8080 tcp
IN 45.123.3.54:443 tcp
FR 95.128.43.213:8080 tcp

Files

memory/4524-0-0x0000000000400000-0x0000000000414000-memory.dmp