Malware Analysis Report

2024-08-06 15:23

Sample ID 240517-w5zz3sch37
Target 0b0f0193b45a1178ecbc00c07c2b985adec07d21a03d7d4fafd3bf8d53aa7558
SHA256 0b0f0193b45a1178ecbc00c07c2b985adec07d21a03d7d4fafd3bf8d53aa7558
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

0b0f0193b45a1178ecbc00c07c2b985adec07d21a03d7d4fafd3bf8d53aa7558

Threat Level: Known bad

The file 0b0f0193b45a1178ecbc00c07c2b985adec07d21a03d7d4fafd3bf8d53aa7558 was found to be: Known bad.

Malicious Activity Summary

nanocore evasion keylogger persistence spyware stealer trojan

NanoCore

Checks computer location settings

Loads dropped DLL

Executes dropped EXE

Adds Run key to start application

Checks whether UAC is enabled

Suspicious use of SetThreadContext

Unsigned PE

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Boot or Logon Autostart Execution
T1547
Registry Run Keys / Startup Folder
T1547.001
Privilege Escalation
TA0004
Boot or Logon Autostart Execution
T1547
Registry Run Keys / Startup Folder
T1547.001
Defense Evasion
TA0005
Modify Registry
T1112
Credential Access
TA0006
Discovery
TA0007
System Information Discovery
T1082
Query Registry
T1012
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-05-17 18:30

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-17 18:30

Reported

2024-05-17 18:33

Platform

win7-20240508-en

Max time kernel

146s

Max time network

119s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0b0f0193b45a1178ecbc00c07c2b985adec07d21a03d7d4fafd3bf8d53aa7558.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A

Loads dropped DLL

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\0b0f0193b45a1178ecbc00c07c2b985adec07d21a03d7d4fafd3bf8d53aa7558.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" C:\Users\Admin\AppData\Local\Temp\0b0f0193b45a1178ecbc00c07c2b985adec07d21a03d7d4fafd3bf8d53aa7558.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\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2608 set thread context of 2960 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A
N/A N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1588 wrote to memory of 2608 N/A C:\Users\Admin\AppData\Local\Temp\0b0f0193b45a1178ecbc00c07c2b985adec07d21a03d7d4fafd3bf8d53aa7558.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 1588 wrote to memory of 2608 N/A C:\Users\Admin\AppData\Local\Temp\0b0f0193b45a1178ecbc00c07c2b985adec07d21a03d7d4fafd3bf8d53aa7558.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 1588 wrote to memory of 2608 N/A C:\Users\Admin\AppData\Local\Temp\0b0f0193b45a1178ecbc00c07c2b985adec07d21a03d7d4fafd3bf8d53aa7558.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 1588 wrote to memory of 2608 N/A C:\Users\Admin\AppData\Local\Temp\0b0f0193b45a1178ecbc00c07c2b985adec07d21a03d7d4fafd3bf8d53aa7558.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 1588 wrote to memory of 2608 N/A C:\Users\Admin\AppData\Local\Temp\0b0f0193b45a1178ecbc00c07c2b985adec07d21a03d7d4fafd3bf8d53aa7558.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 1588 wrote to memory of 2608 N/A C:\Users\Admin\AppData\Local\Temp\0b0f0193b45a1178ecbc00c07c2b985adec07d21a03d7d4fafd3bf8d53aa7558.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 1588 wrote to memory of 2608 N/A C:\Users\Admin\AppData\Local\Temp\0b0f0193b45a1178ecbc00c07c2b985adec07d21a03d7d4fafd3bf8d53aa7558.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2608 wrote to memory of 2960 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2608 wrote to memory of 2960 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2608 wrote to memory of 2960 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2608 wrote to memory of 2960 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2608 wrote to memory of 2960 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2608 wrote to memory of 2960 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2608 wrote to memory of 2960 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2608 wrote to memory of 2960 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2608 wrote to memory of 2960 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2608 wrote to memory of 2960 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2608 wrote to memory of 2960 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2608 wrote to memory of 2960 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

Processes

C:\Users\Admin\AppData\Local\Temp\0b0f0193b45a1178ecbc00c07c2b985adec07d21a03d7d4fafd3bf8d53aa7558.exe

"C:\Users\Admin\AppData\Local\Temp\0b0f0193b45a1178ecbc00c07c2b985adec07d21a03d7d4fafd3bf8d53aa7558.exe"

C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

"C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"

C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

"C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 sysupdate24.ddns.net udp

Files

memory/1588-0-0x0000000074EB1000-0x0000000074EB2000-memory.dmp

memory/1588-1-0x0000000074EB0000-0x000000007545B000-memory.dmp

memory/1588-2-0x0000000074EB0000-0x000000007545B000-memory.dmp

memory/1588-3-0x0000000074EB0000-0x000000007545B000-memory.dmp

\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

MD5 0e2ab4ca0daebb0e31ab32a0c7af4015
SHA1 38ca3a046f0508b99eefae18cb2aa3d6bb52b12c
SHA256 f4c2e91340e8fd6f28307a2b222362c606fac95842bfc5d1d610b313dde62ee0
SHA512 7017e0d6b49a42f39885080e1fb866a79b8eb9a60d3fbf466f4cf5add4ed933d18d1b9c49f0e9b72e60c5ab2ce622d4f8c1cb0617870d3d035ac6299d2c3f1a8

memory/2608-12-0x0000000074EB0000-0x000000007545B000-memory.dmp

memory/2608-14-0x0000000074EB0000-0x000000007545B000-memory.dmp

memory/1588-13-0x0000000074EB0000-0x000000007545B000-memory.dmp

memory/2608-15-0x0000000074EB0000-0x000000007545B000-memory.dmp

memory/2960-19-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2960-18-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2960-17-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2960-30-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2960-29-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2960-24-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2960-23-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2960-21-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2608-32-0x0000000074EB0000-0x000000007545B000-memory.dmp

memory/2608-33-0x0000000074EB0000-0x000000007545B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-17 18:30

Reported

2024-05-17 18:33

Platform

win10v2004-20240508-en

Max time kernel

139s

Max time network

126s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0b0f0193b45a1178ecbc00c07c2b985adec07d21a03d7d4fafd3bf8d53aa7558.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\0b0f0193b45a1178ecbc00c07c2b985adec07d21a03d7d4fafd3bf8d53aa7558.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3558294865-3673844354-2255444939-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" C:\Users\Admin\AppData\Local\Temp\0b0f0193b45a1178ecbc00c07c2b985adec07d21a03d7d4fafd3bf8d53aa7558.exe N/A

Enumerates physical storage devices

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4248 wrote to memory of 4964 N/A C:\Users\Admin\AppData\Local\Temp\0b0f0193b45a1178ecbc00c07c2b985adec07d21a03d7d4fafd3bf8d53aa7558.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 4248 wrote to memory of 4964 N/A C:\Users\Admin\AppData\Local\Temp\0b0f0193b45a1178ecbc00c07c2b985adec07d21a03d7d4fafd3bf8d53aa7558.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 4248 wrote to memory of 4964 N/A C:\Users\Admin\AppData\Local\Temp\0b0f0193b45a1178ecbc00c07c2b985adec07d21a03d7d4fafd3bf8d53aa7558.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 4964 wrote to memory of 4980 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 4964 wrote to memory of 4980 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 4964 wrote to memory of 4980 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

Processes

C:\Users\Admin\AppData\Local\Temp\0b0f0193b45a1178ecbc00c07c2b985adec07d21a03d7d4fafd3bf8d53aa7558.exe

"C:\Users\Admin\AppData\Local\Temp\0b0f0193b45a1178ecbc00c07c2b985adec07d21a03d7d4fafd3bf8d53aa7558.exe"

C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

"C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"

C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

"C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 200.197.17.2.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 23.62.61.155:443 www.bing.com tcp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
NL 23.62.61.155:443 www.bing.com tcp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 155.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 242.197.17.2.in-addr.arpa udp
US 52.111.229.43:443 tcp
US 8.8.8.8:53 22.236.111.52.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

Files

memory/4248-0-0x0000000075162000-0x0000000075163000-memory.dmp

memory/4248-1-0x0000000075160000-0x0000000075711000-memory.dmp

memory/4248-2-0x0000000075160000-0x0000000075711000-memory.dmp

memory/4248-3-0x0000000075160000-0x0000000075711000-memory.dmp

C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

MD5 818bdfb25db64046c95cae44fc9a79fe
SHA1 3795d8ca5b222e84f834807f36f06f4488b8a12c
SHA256 cb7404425735e6b7dec14b40d305e61c5cc4cd9457faf724850babf03c35b45a
SHA512 6a3c9929e6ee504821ba4f83b6c265ee032b85e75a9905947304513c78d7ecd48c04b9b85b25818cb898773f4a768963a7e7c3f26ff135e426f5118a13d8c1b3

memory/4248-17-0x0000000075160000-0x0000000075711000-memory.dmp

memory/4964-18-0x0000000075160000-0x0000000075711000-memory.dmp

memory/4964-19-0x0000000075160000-0x0000000075711000-memory.dmp

memory/4964-21-0x0000000075160000-0x0000000075711000-memory.dmp