Malware Analysis Report

2024-08-06 15:08

Sample ID 240523-d9w5wacf8t
Target 699f37733b57e293985618ea991ce283_JaffaCakes118
SHA256 98f15ea9504c200f2a2c1eaa1ea58993dca53cf606e2d8396f20d4dd9c8c6851
Tags
nanocore evasion keylogger persistence spyware stealer 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

98f15ea9504c200f2a2c1eaa1ea58993dca53cf606e2d8396f20d4dd9c8c6851

Threat Level: Known bad

The file 699f37733b57e293985618ea991ce283_JaffaCakes118 was found to be: Known bad.

Malicious Activity Summary

nanocore evasion keylogger persistence spyware stealer trojan

NanoCore

Nanocore family

Adds Run key to start application

Checks whether UAC is enabled

Drops file in Program Files directory

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Creates scheduled task(s)

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Scheduled Task/Job
T1053
Persistence
TA0003
Boot or Logon Autostart Execution
T1547
Registry Run Keys / Startup Folder
T1547.001
Scheduled Task/Job
T1053
Privilege Escalation
TA0004
Boot or Logon Autostart Execution
T1547
Registry Run Keys / Startup Folder
T1547.001
Scheduled Task/Job
T1053
Defense Evasion
TA0005
Modify Registry
T1112
Credential Access
TA0006
Discovery
TA0007
System Information Discovery
T1082
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-05-23 03:43

Signatures

Nanocore family

nanocore

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-23 03:43

Reported

2024-05-23 03:45

Platform

win7-20231129-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_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\TCP Service = "C:\\Program Files (x86)\\TCP Service\\tcpsv.exe" C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_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\699f37733b57e293985618ea991ce283_JaffaCakes118.exe N/A

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files (x86)\TCP Service\tcpsv.exe C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_JaffaCakes118.exe N/A
File opened for modification C:\Program Files (x86)\TCP Service\tcpsv.exe C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_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: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_JaffaCakes118.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2412 wrote to memory of 2528 N/A C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2412 wrote to memory of 2528 N/A C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2412 wrote to memory of 2528 N/A C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2412 wrote to memory of 2528 N/A C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2412 wrote to memory of 1704 N/A C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2412 wrote to memory of 1704 N/A C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2412 wrote to memory of 1704 N/A C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2412 wrote to memory of 1704 N/A C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe

Processes

C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_JaffaCakes118.exe"

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "TCP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp213.tmp"

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "TCP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp2C0.tmp"

Network

Country Destination Domain Proto
CN 82.156.51.150:54984 tcp
CN 82.156.51.150:54984 tcp
CN 82.156.51.150:54984 tcp
CN 82.156.51.150:54984 tcp
CN 82.156.51.150:54984 tcp
CN 82.156.51.150:54984 tcp
CN 82.156.51.150:54984 tcp
CN 82.156.51.150:54984 tcp
CN 82.156.51.150:54984 tcp
CN 82.156.51.150:54984 tcp

Files

memory/2412-0-0x0000000074D61000-0x0000000074D62000-memory.dmp

memory/2412-1-0x0000000074D60000-0x000000007530B000-memory.dmp

memory/2412-2-0x0000000074D60000-0x000000007530B000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp213.tmp

MD5 76314906fb929452f73f2c3f2a184c4d
SHA1 cad5fdd266d25897c48d45a35d7115c83362b06b
SHA256 c8c485133541027ccb8abf707d6e79bae690b78d87d98e1285c3903f8acc3095
SHA512 537ce2a5f382f7145a54ba9acc48c068d451a7b601cf1dbb8dc7ff94f760cd7ee0a101bcf52e7f37d1c2b9aebd328e52bc7556f652715392db7820ad072d7fcf

C:\Users\Admin\AppData\Local\Temp\tmp2C0.tmp

MD5 93fc3117767507c9889abd12dc667d22
SHA1 1096e4cfa0c35756e3c3fb866c1e4c1e59115df9
SHA256 684997dd4ce15031cec8f2f93933b1d41d7bf5cbbff655dd64377b07055c449a
SHA512 e403348ee77bd3e7c45245dd5dae81c3ea130d5cf342f630982772ce5f75548b292013480e2831d68cf51349b64afde4589d4eec94b567d20f0a01e3b9549bdc

memory/2412-10-0x0000000074D60000-0x000000007530B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-23 03:43

Reported

2024-05-23 03:45

Platform

win10v2004-20240426-en

Max time kernel

134s

Max time network

142s

Command Line

"C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_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\699f37733b57e293985618ea991ce283_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\699f37733b57e293985618ea991ce283_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\699f37733b57e293985618ea991ce283_JaffaCakes118.exe N/A
File opened for modification C:\Program Files (x86)\DPI Service\dpisvc.exe C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_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: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_JaffaCakes118.exe N/A
N/A N/A C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_JaffaCakes118.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_JaffaCakes118.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_JaffaCakes118.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2012 wrote to memory of 1432 N/A C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2012 wrote to memory of 1432 N/A C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2012 wrote to memory of 1432 N/A C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2012 wrote to memory of 2628 N/A C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2012 wrote to memory of 2628 N/A C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe
PID 2012 wrote to memory of 2628 N/A C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_JaffaCakes118.exe C:\Windows\SysWOW64\schtasks.exe

Processes

C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_JaffaCakes118.exe

"C:\Users\Admin\AppData\Local\Temp\699f37733b57e293985618ea991ce283_JaffaCakes118.exe"

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "DPI Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4006.tmp"

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "DPI Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4046.tmp"

Network

Country Destination Domain Proto
CN 82.156.51.150:54984 tcp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 144.107.17.2.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 4.159.190.20.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 194.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
NL 23.62.61.194:443 www.bing.com tcp
CN 82.156.51.150:54984 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
CN 82.156.51.150:54984 tcp
CN 82.156.51.150:54984 tcp
US 8.8.8.8:53 37.56.20.217.in-addr.arpa udp
CN 82.156.51.150:54984 tcp
CN 82.156.51.150:54984 tcp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 43.229.111.52.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 204.79.197.200:443 tse1.mm.bing.net tcp
CN 82.156.51.150:54984 tcp
CN 82.156.51.150:54984 tcp
CN 82.156.51.150:54984 tcp

Files

memory/2012-0-0x0000000074662000-0x0000000074663000-memory.dmp

memory/2012-1-0x0000000074660000-0x0000000074C11000-memory.dmp

memory/2012-2-0x0000000074660000-0x0000000074C11000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmp4006.tmp

MD5 76314906fb929452f73f2c3f2a184c4d
SHA1 cad5fdd266d25897c48d45a35d7115c83362b06b
SHA256 c8c485133541027ccb8abf707d6e79bae690b78d87d98e1285c3903f8acc3095
SHA512 537ce2a5f382f7145a54ba9acc48c068d451a7b601cf1dbb8dc7ff94f760cd7ee0a101bcf52e7f37d1c2b9aebd328e52bc7556f652715392db7820ad072d7fcf

C:\Users\Admin\AppData\Local\Temp\tmp4046.tmp

MD5 0d6d94a917c4ce63da6bc50cbbe0dc5d
SHA1 599564f60649f3f4c14478e9cb184000d4280a61
SHA256 e82a4b8311319f1b68cb06ae5b670e97a11c467b1bdb0ebf130f523bf98ca522
SHA512 23ac6a088e2a1df3d75d2aca17cdcc5a4147b966758e4acc4d904293f4693f362db637d8135edd670e158bec77e788e915f2a55042a2f1aec09a4679bc749412

memory/2012-10-0x0000000074660000-0x0000000074C11000-memory.dmp

memory/2012-11-0x0000000074660000-0x0000000074C11000-memory.dmp

memory/2012-12-0x0000000074662000-0x0000000074663000-memory.dmp

memory/2012-13-0x0000000074660000-0x0000000074C11000-memory.dmp

memory/2012-14-0x0000000074660000-0x0000000074C11000-memory.dmp