Malware Analysis Report

2024-10-19 07:05

Sample ID 240806-x2s8ss1gke
Target dc2533b0feef85c78e45c3e1fb49d0f0N.exe
SHA256 90115d512cb84ffadc9a85aaddc077fb817fa37198a863928291e9780cfa763f
Tags
discovery persistence nanocore evasion keylogger spyware stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

90115d512cb84ffadc9a85aaddc077fb817fa37198a863928291e9780cfa763f

Threat Level: Known bad

The file dc2533b0feef85c78e45c3e1fb49d0f0N.exe was found to be: Known bad.

Malicious Activity Summary

discovery persistence nanocore evasion keylogger spyware stealer trojan

NanoCore

Executes dropped EXE

Loads dropped DLL

Checks computer location settings

Checks whether UAC is enabled

Adds Run key to start application

Suspicious use of SetThreadContext

Unsigned PE

Enumerates physical storage devices

System Location Discovery: System Language Discovery

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-06 19:21

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-06 19:21

Reported

2024-08-06 19:23

Platform

win10v2004-20240802-en

Max time kernel

94s

Max time network

105s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dc2533b0feef85c78e45c3e1fb49d0f0N.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-523280732-2327480845-3730041215-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\dc2533b0feef85c78e45c3e1fb49d0f0N.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-1-5-21-523280732-2327480845-3730041215-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" C:\Users\Admin\AppData\Local\Temp\dc2533b0feef85c78e45c3e1fb49d0f0N.exe N/A

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\dc2533b0feef85c78e45c3e1fb49d0f0N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\dc2533b0feef85c78e45c3e1fb49d0f0N.exe

"C:\Users\Admin\AppData\Local\Temp\dc2533b0feef85c78e45c3e1fb49d0f0N.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 g.bing.com udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 103.169.127.40.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 0.205.248.87.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 52.111.229.43:443 tcp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp

Files

memory/1516-0-0x0000000074CB2000-0x0000000074CB3000-memory.dmp

memory/1516-1-0x0000000074CB0000-0x0000000075261000-memory.dmp

memory/1516-2-0x0000000074CB0000-0x0000000075261000-memory.dmp

memory/1516-3-0x0000000074CB0000-0x0000000075261000-memory.dmp

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

MD5 22fdc9b13f72669f452ddc2f61930d9c
SHA1 ae98e7eb2c345996375d1c10424587a15a5dae77
SHA256 a9dcd608f344d28c2dd4c6496854f35311d4d86f7177d2e7dd74aab3e94ed264
SHA512 4433855b1d28255d02b62d13f05af83899a79a818563a77f3ebb69c8d32ca70fd65500b78cb2c6d06bd60cc8f1116c7b36c1031c4839a937b2a04d499fb68186

memory/1516-18-0x0000000074CB0000-0x0000000075261000-memory.dmp

memory/3220-17-0x0000000074CB0000-0x0000000075261000-memory.dmp

memory/3220-19-0x0000000074CB0000-0x0000000075261000-memory.dmp

memory/3220-21-0x0000000074CB0000-0x0000000075261000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-06 19:21

Reported

2024-08-06 19:23

Platform

win7-20240704-en

Max time kernel

117s

Max time network

26s

Command Line

"C:\Users\Admin\AppData\Local\Temp\dc2533b0feef85c78e45c3e1fb49d0f0N.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

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3450744190-3404161390-554719085-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" C:\Users\Admin\AppData\Local\Temp\dc2533b0feef85c78e45c3e1fb49d0f0N.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 2748 set thread context of 2880 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

Enumerates physical storage devices

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\dc2533b0feef85c78e45c3e1fb49d0f0N.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 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 2692 wrote to memory of 2748 N/A C:\Users\Admin\AppData\Local\Temp\dc2533b0feef85c78e45c3e1fb49d0f0N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2692 wrote to memory of 2748 N/A C:\Users\Admin\AppData\Local\Temp\dc2533b0feef85c78e45c3e1fb49d0f0N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2692 wrote to memory of 2748 N/A C:\Users\Admin\AppData\Local\Temp\dc2533b0feef85c78e45c3e1fb49d0f0N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2692 wrote to memory of 2748 N/A C:\Users\Admin\AppData\Local\Temp\dc2533b0feef85c78e45c3e1fb49d0f0N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2692 wrote to memory of 2748 N/A C:\Users\Admin\AppData\Local\Temp\dc2533b0feef85c78e45c3e1fb49d0f0N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2692 wrote to memory of 2748 N/A C:\Users\Admin\AppData\Local\Temp\dc2533b0feef85c78e45c3e1fb49d0f0N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2692 wrote to memory of 2748 N/A C:\Users\Admin\AppData\Local\Temp\dc2533b0feef85c78e45c3e1fb49d0f0N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2748 wrote to memory of 2880 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2748 wrote to memory of 2880 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2748 wrote to memory of 2880 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2748 wrote to memory of 2880 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2748 wrote to memory of 2880 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2748 wrote to memory of 2880 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2748 wrote to memory of 2880 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2748 wrote to memory of 2880 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2748 wrote to memory of 2880 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2748 wrote to memory of 2880 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2748 wrote to memory of 2880 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2748 wrote to memory of 2880 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\dc2533b0feef85c78e45c3e1fb49d0f0N.exe

"C:\Users\Admin\AppData\Local\Temp\dc2533b0feef85c78e45c3e1fb49d0f0N.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/2692-0-0x00000000746B1000-0x00000000746B2000-memory.dmp

memory/2692-1-0x00000000746B0000-0x0000000074C5B000-memory.dmp

memory/2692-2-0x00000000746B0000-0x0000000074C5B000-memory.dmp

memory/2692-3-0x00000000746B0000-0x0000000074C5B000-memory.dmp

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

MD5 714c9adef6a78cd2162ce047938c5cd2
SHA1 b53c8579eb6fe7a86234044b94e60d15aa45ada5
SHA256 bb7c1c7e72feaff1559dcba017cad3381d4c2e05850a8d2e515e1f1ab2e743c6
SHA512 09da84a9cf19bf5ce0911f3c61864fc24903a32255272cc79e4ecb47a7af635c1bf3e2513508b05a0b161c1e355ce33dfd26e70f7692a1c9f60dc1128722dc2d

memory/2748-12-0x00000000746B0000-0x0000000074C5B000-memory.dmp

memory/2692-14-0x00000000746B0000-0x0000000074C5B000-memory.dmp

memory/2748-13-0x00000000746B0000-0x0000000074C5B000-memory.dmp

memory/2748-15-0x00000000746B0000-0x0000000074C5B000-memory.dmp

memory/2880-24-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2880-35-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2880-33-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2880-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2880-27-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2880-21-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2880-19-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2880-17-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2748-37-0x00000000746B0000-0x0000000074C5B000-memory.dmp