Malware Analysis Report

2024-10-19 07:12

Sample ID 240506-kjvbxseg3w
Target 1ba82a5551f2f33a6be51f84ac7c648a_JaffaCakes118
SHA256 928246e3bf8e9e3784dcad1849e9d4b0415f5ce267dd8a30a61307edfb51ab8e
Tags
nanocore evasion keylogger persistence spyware stealer 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

928246e3bf8e9e3784dcad1849e9d4b0415f5ce267dd8a30a61307edfb51ab8e

Threat Level: Known bad

The file 1ba82a5551f2f33a6be51f84ac7c648a_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

nanocore evasion keylogger persistence spyware stealer trojan

Nanocore family

NanoCore

Adds Run key to start application

Checks whether UAC is enabled

Drops file in Program Files directory

Unsigned PE

Creates scheduled task(s)

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-06 08:38

Signatures

Nanocore family

nanocore

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-06 08:38

Reported

2024-05-06 08:40

Platform

win7-20240221-en

Max time kernel

146s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1ba82a5551f2f33a6be51f84ac7c648a_JaffaCakes118.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\ISS Host = "C:\\Program Files (x86)\\ISS Host\\isshost.exe" C:\Users\Admin\AppData\Local\Temp\1ba82a5551f2f33a6be51f84ac7c648a_JaffaCakes118.exe N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\1ba82a5551f2f33a6be51f84ac7c648a_JaffaCakes118.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files (x86)\ISS Host\isshost.exe C:\Users\Admin\AppData\Local\Temp\1ba82a5551f2f33a6be51f84ac7c648a_JaffaCakes118.exe N/A
File opened for modification C:\Program Files (x86)\ISS Host\isshost.exe C:\Users\Admin\AppData\Local\Temp\1ba82a5551f2f33a6be51f84ac7c648a_JaffaCakes118.exe N/A

Creates scheduled task(s)

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

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\1ba82a5551f2f33a6be51f84ac7c648a_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1ba82a5551f2f33a6be51f84ac7c648a_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\1ba82a5551f2f33a6be51f84ac7c648a_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\1ba82a5551f2f33a6be51f84ac7c648a_JaffaCakes118.exe"

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "ISS Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp16DB.tmp"

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "ISS Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1768.tmp"

Network

Country Destination Domain Proto
JP 61.196.186.234:54984 tcp
JP 61.196.186.234:54984 tcp
JP 61.196.186.234:54984 tcp
N/A 127.0.0.1:54984 tcp
N/A 127.0.0.1:54984 tcp
N/A 127.0.0.1:54984 tcp
JP 61.196.186.234:54984 tcp
JP 61.196.186.234:54984 tcp
JP 61.196.186.234:54984 tcp
N/A 127.0.0.1:54984 tcp
N/A 127.0.0.1:54984 tcp
N/A 127.0.0.1:54984 tcp
JP 61.196.186.234:54984 tcp
JP 61.196.186.234:54984 tcp

Files

memory/1808-0-0x00000000745A1000-0x00000000745A2000-memory.dmp

memory/1808-1-0x00000000745A0000-0x0000000074B4B000-memory.dmp

memory/1808-2-0x00000000745A0000-0x0000000074B4B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp16DB.tmp

MD5 bafb9b6a74d353c7c186d27c8cf2f0cb
SHA1 f97ca0f43db12be9cb7cab558cf7edc94f1d5a5e
SHA256 f7328e22e5b6ad9df1b5e8f3a2a27aa495f3c8427232f1bc187faf5ff9bedefa
SHA512 96ada1684936d48886f96dde0bf64f69793f4b0c517cb2fa2d471529cf70383476ab00ab19d31dab647a2226567c64a32c13739aefcea1550462a70ce11fc8d1

C:\Users\Admin\AppData\Local\Temp\tmp1768.tmp

MD5 3d1580c0395f6de62659467f5b7f1acf
SHA1 8e73a3885896cecca7ff799a272fc9ddfe06ea96
SHA256 6f40196c42a171f24a3e16edeca664cdc5a2f7c150d468255b0e14ab10a2b714
SHA512 7637c0d9b03227dffcb00a68d97ddce60bfc40ca0f8a7a4bbd700ea56be6d570908511dea5cab9f609a7da2e558e5298c482fd1e330af085f9c52867d5a847ea

memory/1808-10-0x00000000745A0000-0x0000000074B4B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-06 08:38

Reported

2024-05-06 08:40

Platform

win10v2004-20240426-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\1ba82a5551f2f33a6be51f84ac7c648a_JaffaCakes118.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DPI Service = "C:\\Program Files (x86)\\DPI Service\\dpisvc.exe" C:\Users\Admin\AppData\Local\Temp\1ba82a5551f2f33a6be51f84ac7c648a_JaffaCakes118.exe N/A

Checks whether UAC is enabled

evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\1ba82a5551f2f33a6be51f84ac7c648a_JaffaCakes118.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files (x86)\DPI Service\dpisvc.exe C:\Users\Admin\AppData\Local\Temp\1ba82a5551f2f33a6be51f84ac7c648a_JaffaCakes118.exe N/A
File opened for modification C:\Program Files (x86)\DPI Service\dpisvc.exe C:\Users\Admin\AppData\Local\Temp\1ba82a5551f2f33a6be51f84ac7c648a_JaffaCakes118.exe N/A

Creates scheduled task(s)

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

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\1ba82a5551f2f33a6be51f84ac7c648a_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\1ba82a5551f2f33a6be51f84ac7c648a_JaffaCakes118.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\1ba82a5551f2f33a6be51f84ac7c648a_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\1ba82a5551f2f33a6be51f84ac7c648a_JaffaCakes118.exe"

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "DPI Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp349D.tmp"

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "DPI Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp34FB.tmp"

Network

Country Destination Domain Proto
JP 61.196.186.234:54984 tcp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 79.190.18.2.in-addr.arpa udp
NL 23.62.61.129:443 www.bing.com tcp
US 8.8.8.8:53 129.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
JP 61.196.186.234:54984 tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
JP 61.196.186.234:54984 tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
N/A 127.0.0.1:54984 tcp
N/A 127.0.0.1:54984 tcp
N/A 127.0.0.1:54984 tcp
JP 61.196.186.234:54984 tcp
JP 61.196.186.234:54984 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
US 204.79.197.200:443 tse1.mm.bing.net tcp
JP 61.196.186.234:54984 tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
N/A 127.0.0.1:54984 tcp
N/A 127.0.0.1:54984 tcp
N/A 127.0.0.1:54984 tcp
JP 61.196.186.234:54984 tcp
US 8.8.8.8:53 225.162.46.104.in-addr.arpa udp

Files

memory/3040-0-0x0000000074EC2000-0x0000000074EC3000-memory.dmp

memory/3040-1-0x0000000074EC0000-0x0000000075471000-memory.dmp

memory/3040-2-0x0000000074EC0000-0x0000000075471000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp349D.tmp

MD5 bafb9b6a74d353c7c186d27c8cf2f0cb
SHA1 f97ca0f43db12be9cb7cab558cf7edc94f1d5a5e
SHA256 f7328e22e5b6ad9df1b5e8f3a2a27aa495f3c8427232f1bc187faf5ff9bedefa
SHA512 96ada1684936d48886f96dde0bf64f69793f4b0c517cb2fa2d471529cf70383476ab00ab19d31dab647a2226567c64a32c13739aefcea1550462a70ce11fc8d1

C:\Users\Admin\AppData\Local\Temp\tmp34FB.tmp

MD5 0d6d94a917c4ce63da6bc50cbbe0dc5d
SHA1 599564f60649f3f4c14478e9cb184000d4280a61
SHA256 e82a4b8311319f1b68cb06ae5b670e97a11c467b1bdb0ebf130f523bf98ca522
SHA512 23ac6a088e2a1df3d75d2aca17cdcc5a4147b966758e4acc4d904293f4693f362db637d8135edd670e158bec77e788e915f2a55042a2f1aec09a4679bc749412

memory/3040-10-0x0000000074EC0000-0x0000000075471000-memory.dmp

memory/3040-11-0x0000000074EC0000-0x0000000075471000-memory.dmp

memory/3040-12-0x0000000074EC2000-0x0000000074EC3000-memory.dmp

memory/3040-13-0x0000000074EC0000-0x0000000075471000-memory.dmp

memory/3040-14-0x0000000074EC0000-0x0000000075471000-memory.dmp