Malware Analysis Report

2025-01-03 06:13

Sample ID 240522-qas1dscd22
Target 675911f7a4b5931ad9cc0a34ceb5cc86_JaffaCakes118
SHA256 c6a767ba8c7fbd15990e376a2ecf6acd3933770982b7c591d35cce684770e719
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

c6a767ba8c7fbd15990e376a2ecf6acd3933770982b7c591d35cce684770e719

Threat Level: Known bad

The file 675911f7a4b5931ad9cc0a34ceb5cc86_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 13:03

Signatures

N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-22 13:03

Reported

2024-05-22 13:13

Platform

win7-20240221-en

Max time kernel

134s

Max time network

154s

Command Line

"C:\Users\Admin\AppData\Local\Temp\675911f7a4b5931ad9cc0a34ceb5cc86_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\unpackser.exe N/A

Enumerates physical storage devices

Modifies data under HKEY_USERS

Description Indicator Process Target
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections C:\Windows\SysWOW64\unpackser.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\unpackser.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\unpackser.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" C:\Windows\SysWOW64\unpackser.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f0090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\unpackser.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DF0CEC56-E98F-44C4-995D-69849CDD7EE8}\WpadDecisionTime = 0029018649acda01 C:\Windows\SysWOW64\unpackser.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DF0CEC56-E98F-44C4-995D-69849CDD7EE8}\WpadDecision = "0" C:\Windows\SysWOW64\unpackser.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\unpackser.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DF0CEC56-E98F-44C4-995D-69849CDD7EE8}\WpadNetworkName = "Network 3" C:\Windows\SysWOW64\unpackser.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DF0CEC56-E98F-44C4-995D-69849CDD7EE8}\fa-c9-7a-3d-a3-5a C:\Windows\SysWOW64\unpackser.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\unpackser.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix C:\Windows\SysWOW64\unpackser.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad C:\Windows\SysWOW64\unpackser.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DF0CEC56-E98F-44C4-995D-69849CDD7EE8} C:\Windows\SysWOW64\unpackser.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fa-c9-7a-3d-a3-5a C:\Windows\SysWOW64\unpackser.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\unpackser.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\unpackser.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{DF0CEC56-E98F-44C4-995D-69849CDD7EE8}\WpadDecisionReason = "1" C:\Windows\SysWOW64\unpackser.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fa-c9-7a-3d-a3-5a\WpadDecisionReason = "1" C:\Windows\SysWOW64\unpackser.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fa-c9-7a-3d-a3-5a\WpadDecisionTime = 0029018649acda01 C:\Windows\SysWOW64\unpackser.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\fa-c9-7a-3d-a3-5a\WpadDecision = "0" C:\Windows\SysWOW64\unpackser.exe N/A

Suspicious behavior: EnumeratesProcesses

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

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\675911f7a4b5931ad9cc0a34ceb5cc86_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\675911f7a4b5931ad9cc0a34ceb5cc86_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\675911f7a4b5931ad9cc0a34ceb5cc86_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\675911f7a4b5931ad9cc0a34ceb5cc86_JaffaCakes118.exe

--1bd4794c

C:\Windows\SysWOW64\unpackser.exe

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

C:\Windows\SysWOW64\unpackser.exe

--dc4b0d04

Network

Country Destination Domain Proto
BO 200.58.171.51:80 tcp
BO 200.58.171.51:80 tcp
MX 189.196.140.187:80 tcp
MX 189.196.140.187:80 tcp
KR 222.104.222.145:443 tcp

Files

memory/1280-0-0x0000000000220000-0x0000000000231000-memory.dmp

memory/1280-1-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1280-4-0x0000000000400000-0x0000000000414000-memory.dmp

memory/1280-3-0x0000000000220000-0x0000000000231000-memory.dmp

memory/2200-5-0x0000000000400000-0x0000000000421000-memory.dmp

memory/2200-6-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2620-7-0x0000000000400000-0x0000000000421000-memory.dmp

memory/2200-10-0x0000000000400000-0x0000000000414000-memory.dmp

memory/2616-11-0x0000000000400000-0x0000000000421000-memory.dmp

memory/2616-12-0x0000000000400000-0x0000000000421000-memory.dmp

memory/2616-13-0x0000000000400000-0x0000000000414000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-22 13:03

Reported

2024-05-22 13:12

Platform

win10v2004-20240426-en

Max time kernel

148s

Max time network

147s

Command Line

"C:\Users\Admin\AppData\Local\Temp\675911f7a4b5931ad9cc0a34ceb5cc86_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\randomlines.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies C:\Windows\SysWOW64\randomlines.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 C:\Windows\SysWOW64\randomlines.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\Content.IE5 C:\Windows\SysWOW64\randomlines.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\randomlines.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\randomlines.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\randomlines.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\675911f7a4b5931ad9cc0a34ceb5cc86_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\675911f7a4b5931ad9cc0a34ceb5cc86_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\675911f7a4b5931ad9cc0a34ceb5cc86_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\675911f7a4b5931ad9cc0a34ceb5cc86_JaffaCakes118.exe

--1bd4794c

C:\Windows\SysWOW64\randomlines.exe

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

C:\Windows\SysWOW64\randomlines.exe

--42aa5852

Network

Country Destination Domain Proto
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
NL 23.62.61.129:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 129.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 73.159.190.20.in-addr.arpa udp
NL 23.62.61.129:443 www.bing.com tcp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
BO 200.58.171.51:80 tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
MX 189.196.140.187:80 tcp
US 8.8.8.8:53 18.24.18.2.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
KR 222.104.222.145:443 tcp
US 8.8.8.8:53 48.229.111.52.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 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 57.169.31.20.in-addr.arpa udp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
MY 115.132.227.247:443 tcp
CO 190.85.206.228:80 tcp

Files

memory/3544-0-0x00000000005B0000-0x00000000005C1000-memory.dmp

memory/3544-1-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3544-3-0x00000000005B0000-0x00000000005C1000-memory.dmp

memory/3456-4-0x0000000000400000-0x0000000000414000-memory.dmp

memory/4948-5-0x0000000000400000-0x0000000000421000-memory.dmp

memory/3456-8-0x0000000000400000-0x0000000000414000-memory.dmp

memory/3508-10-0x0000000000400000-0x0000000000421000-memory.dmp

memory/3508-11-0x0000000000400000-0x0000000000421000-memory.dmp

memory/3508-14-0x0000000000400000-0x0000000000421000-memory.dmp

memory/3508-15-0x0000000000400000-0x0000000000421000-memory.dmp