Malware Analysis Report

2024-10-18 21:18

Sample ID 240517-wszhsaca51
Target 50ce9c75cd29bca309ebe6d244376464_JaffaCakes118
SHA256 8fc1820dae78015bbd07b3a11c1f4310c0c838a33c76935cf74eb71ac91ca053
Tags
emotet epoch3 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

8fc1820dae78015bbd07b3a11c1f4310c0c838a33c76935cf74eb71ac91ca053

Threat Level: Known bad

The file 50ce9c75cd29bca309ebe6d244376464_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

emotet epoch3 banker trojan

Emotet

Drops file in System32 directory

Enumerates physical storage devices

Unsigned PE

Modifies data under HKEY_USERS

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: RenamesItself

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-17 18:11

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-17 18:11

Reported

2024-05-17 18:14

Platform

win7-20240419-en

Max time kernel

148s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\50ce9c75cd29bca309ebe6d244376464_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\malerttexas.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\malerttexas.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37BAAEC5-C191-4C28-BB0F-E325833E4815} C:\Windows\SysWOW64\malerttexas.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\46-47-65-7c-a1-d4 C:\Windows\SysWOW64\malerttexas.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\46-47-65-7c-a1-d4\WpadDecisionTime = d0b787c285a8da01 C:\Windows\SysWOW64\malerttexas.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections C:\Windows\SysWOW64\malerttexas.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\malerttexas.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\malerttexas.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00c9000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\malerttexas.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000004000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f00c9000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\malerttexas.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\malerttexas.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0" C:\Windows\SysWOW64\malerttexas.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad C:\Windows\SysWOW64\malerttexas.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37BAAEC5-C191-4C28-BB0F-E325833E4815}\WpadDecision = "0" C:\Windows\SysWOW64\malerttexas.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\46-47-65-7c-a1-d4\WpadDetectedUrl C:\Windows\SysWOW64\malerttexas.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\malerttexas.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 C:\Windows\SysWOW64\malerttexas.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37BAAEC5-C191-4C28-BB0F-E325833E4815}\WpadDecisionTime = d0b787c285a8da01 C:\Windows\SysWOW64\malerttexas.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\46-47-65-7c-a1-d4\WpadDecision = "0" C:\Windows\SysWOW64\malerttexas.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37BAAEC5-C191-4C28-BB0F-E325833E4815}\WpadDecisionTime = 101c66e585a8da01 C:\Windows\SysWOW64\malerttexas.exe N/A
Key created \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings C:\Windows\SysWOW64\malerttexas.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37BAAEC5-C191-4C28-BB0F-E325833E4815}\WpadDecisionReason = "1" C:\Windows\SysWOW64\malerttexas.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37BAAEC5-C191-4C28-BB0F-E325833E4815}\WpadNetworkName = "Network 3" C:\Windows\SysWOW64\malerttexas.exe N/A
Set value (int) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\46-47-65-7c-a1-d4\WpadDecisionReason = "1" C:\Windows\SysWOW64\malerttexas.exe N/A
Key created \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{37BAAEC5-C191-4C28-BB0F-E325833E4815}\46-47-65-7c-a1-d4 C:\Windows\SysWOW64\malerttexas.exe N/A
Set value (data) \REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\46-47-65-7c-a1-d4\WpadDecisionTime = 101c66e585a8da01 C:\Windows\SysWOW64\malerttexas.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\50ce9c75cd29bca309ebe6d244376464_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\50ce9c75cd29bca309ebe6d244376464_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\50ce9c75cd29bca309ebe6d244376464_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\50ce9c75cd29bca309ebe6d244376464_JaffaCakes118.exe

--eef93871

C:\Windows\SysWOW64\malerttexas.exe

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

C:\Windows\SysWOW64\malerttexas.exe

--417bffe0

Network

Country Destination Domain Proto
KR 222.239.249.166:443 tcp
KR 222.239.249.166:443 tcp
MD 217.26.163.82:7080 tcp
MD 217.26.163.82:7080 tcp
DE 91.205.173.54:8080 tcp
DE 91.205.173.54:8080 tcp
FR 163.172.97.112:8080 tcp
FR 163.172.97.112:8080 tcp
PK 103.205.177.229:80 tcp
PK 103.205.177.229:80 tcp
NL 176.58.93.123:80 tcp

Files

memory/1764-0-0x0000000000260000-0x0000000000274000-memory.dmp

memory/1764-5-0x0000000000250000-0x000000000025F000-memory.dmp

memory/2864-6-0x0000000000230000-0x0000000000244000-memory.dmp

memory/3020-11-0x0000000000460000-0x0000000000474000-memory.dmp

memory/2864-16-0x0000000000400000-0x0000000000456000-memory.dmp

memory/2636-17-0x00000000003C0000-0x00000000003D4000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-17 18:11

Reported

2024-05-17 18:14

Platform

win10v2004-20240426-en

Max time kernel

137s

Max time network

141s

Command Line

"C:\Users\Admin\AppData\Local\Temp\50ce9c75cd29bca309ebe6d244376464_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\nicboost.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCache\IE C:\Windows\SysWOW64\nicboost.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\INetCookies C:\Windows\SysWOW64\nicboost.exe N/A
File opened for modification C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\History\History.IE5 C:\Windows\SysWOW64\nicboost.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\nicboost.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:" C:\Windows\SysWOW64\nicboost.exe N/A
Set value (str) \REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:" C:\Windows\SysWOW64\nicboost.exe N/A

Suspicious behavior: RenamesItself

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\50ce9c75cd29bca309ebe6d244376464_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\50ce9c75cd29bca309ebe6d244376464_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\50ce9c75cd29bca309ebe6d244376464_JaffaCakes118.exe"

C:\Users\Admin\AppData\Local\Temp\50ce9c75cd29bca309ebe6d244376464_JaffaCakes118.exe

--eef93871

C:\Windows\SysWOW64\nicboost.exe

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

C:\Windows\SysWOW64\nicboost.exe

--cf343c4d

Network

Country Destination Domain Proto
US 8.8.8.8:53 tse1.mm.bing.net udp
US 8.8.8.8:53 g.bing.com udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 0.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
NL 23.62.61.112:443 www.bing.com tcp
US 8.8.8.8:53 112.61.62.23.in-addr.arpa udp
KR 222.239.249.166:443 tcp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
NL 23.62.61.112:443 www.bing.com tcp
US 8.8.8.8:53 57.169.31.20.in-addr.arpa udp
MD 217.26.163.82:7080 tcp
DE 91.205.173.54:8080 tcp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
FR 163.172.97.112:8080 tcp
PK 103.205.177.229:80 tcp
US 8.8.8.8:53 30.243.111.52.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
NL 176.58.93.123:80 tcp
KG 212.112.113.235:80 tcp

Files

memory/2372-0-0x0000000002200000-0x0000000002214000-memory.dmp

memory/2372-5-0x00000000021F0000-0x00000000021FF000-memory.dmp

memory/3980-6-0x00000000021A0000-0x00000000021B4000-memory.dmp

memory/1372-12-0x0000000000DC0000-0x0000000000DD4000-memory.dmp

memory/3980-17-0x0000000000400000-0x0000000000456000-memory.dmp

memory/3124-19-0x0000000000540000-0x0000000000554000-memory.dmp

C:\ProgramData\Microsoft\Crypto\RSA\S-1-5-18\5ee9f8cddb3ff188c6a99dcf99203008_41e50f4a-4a76-42e1-a3df-51306e426307

MD5 aaec799e344163d0d188e0590697cb1e
SHA1 94aa3e9674f1335e1cdf6dc7b7c7cdbf5c97c65d
SHA256 d627b40c75603106e24782fdb852c180722ae6d472bdb60367bf2708f28f5454
SHA512 285e78b5ddc3049b2b167e0c785f410260eecdbb745489e3e5984e118c627e97b7499f8a937a4a6d5da4fe046fb220fc70fd5abc583083909fd005b1ee4f03b0