Malware Analysis Report

2024-10-23 19:39

Sample ID 240816-n2e7hashkg
Target fe271795d46dc79937c4b43ff8642a00N.exe
SHA256 d697ba97c44ec3c8ecbee3399326507fb5e4ee1df6307c33bad34bb1709a0530
Tags
nanocore discovery 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

d697ba97c44ec3c8ecbee3399326507fb5e4ee1df6307c33bad34bb1709a0530

Threat Level: Known bad

The file fe271795d46dc79937c4b43ff8642a00N.exe was found to be: Known bad.

Malicious Activity Summary

nanocore discovery evasion keylogger persistence 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

System Location Discovery: System Language Discovery

Unsigned PE

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-16 11:53

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-16 11:53

Reported

2024-08-16 11:55

Platform

win7-20240705-en

Max time kernel

118s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\fe271795d46dc79937c4b43ff8642a00N.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-1-5-21-1385883288-3042840365-2734249351-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" C:\Users\Admin\AppData\Local\Temp\fe271795d46dc79937c4b43ff8642a00N.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 2892 set thread context of 2644 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\fe271795d46dc79937c4b43ff8642a00N.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 1460 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\fe271795d46dc79937c4b43ff8642a00N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 1460 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\fe271795d46dc79937c4b43ff8642a00N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 1460 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\fe271795d46dc79937c4b43ff8642a00N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 1460 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\fe271795d46dc79937c4b43ff8642a00N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 1460 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\fe271795d46dc79937c4b43ff8642a00N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 1460 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\fe271795d46dc79937c4b43ff8642a00N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 1460 wrote to memory of 2892 N/A C:\Users\Admin\AppData\Local\Temp\fe271795d46dc79937c4b43ff8642a00N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2892 wrote to memory of 2644 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2892 wrote to memory of 2644 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2892 wrote to memory of 2644 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2892 wrote to memory of 2644 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2892 wrote to memory of 2644 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2892 wrote to memory of 2644 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2892 wrote to memory of 2644 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2892 wrote to memory of 2644 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2892 wrote to memory of 2644 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2892 wrote to memory of 2644 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2892 wrote to memory of 2644 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2892 wrote to memory of 2644 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\fe271795d46dc79937c4b43ff8642a00N.exe

"C:\Users\Admin\AppData\Local\Temp\fe271795d46dc79937c4b43ff8642a00N.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/1460-0-0x0000000074F21000-0x0000000074F22000-memory.dmp

memory/1460-1-0x0000000074F20000-0x00000000754CB000-memory.dmp

memory/1460-2-0x0000000074F20000-0x00000000754CB000-memory.dmp

memory/1460-3-0x0000000074F20000-0x00000000754CB000-memory.dmp

memory/1460-4-0x0000000074F20000-0x00000000754CB000-memory.dmp

memory/1460-5-0x0000000074F20000-0x00000000754CB000-memory.dmp

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

MD5 f5a38f2b34660e4a5307c7b4202e43a7
SHA1 0294e38322d69f5debade1e302bff6b4f5c4d4b8
SHA256 ac58639d39082c67faa625089f28769cb352e31dc664bea0c0450d2175df5a14
SHA512 680300b00b1523d412be42751782f8bac597b247066de4531809afe1526c28d0c201b7be8832ba5559878a16a22ba3195cde57efb2aa1f5c274da90d01c481c7

memory/2892-15-0x0000000074F20000-0x00000000754CB000-memory.dmp

memory/1460-14-0x0000000074F20000-0x00000000754CB000-memory.dmp

memory/2892-16-0x0000000074F20000-0x00000000754CB000-memory.dmp

memory/2892-17-0x0000000074F20000-0x00000000754CB000-memory.dmp

memory/2892-18-0x0000000074F20000-0x00000000754CB000-memory.dmp

memory/2892-19-0x0000000074F20000-0x00000000754CB000-memory.dmp

memory/2892-20-0x0000000074F20000-0x00000000754CB000-memory.dmp

memory/2892-21-0x0000000074F20000-0x00000000754CB000-memory.dmp

memory/2644-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2644-39-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2644-38-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2644-32-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2644-29-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2644-26-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2644-25-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2644-23-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2892-41-0x0000000074F20000-0x00000000754CB000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-16 11:53

Reported

2024-08-16 11:55

Platform

win10v2004-20240802-en

Max time kernel

119s

Max time network

107s

Command Line

"C:\Users\Admin\AppData\Local\Temp\fe271795d46dc79937c4b43ff8642a00N.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-945322488-2060912225-3527527000-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\fe271795d46dc79937c4b43ff8642a00N.exe N/A

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-1-5-21-945322488-2060912225-3527527000-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" C:\Users\Admin\AppData\Local\Temp\fe271795d46dc79937c4b43ff8642a00N.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 732 set thread context of 916 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\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
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\fe271795d46dc79937c4b43ff8642a00N.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 2072 wrote to memory of 732 N/A C:\Users\Admin\AppData\Local\Temp\fe271795d46dc79937c4b43ff8642a00N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2072 wrote to memory of 732 N/A C:\Users\Admin\AppData\Local\Temp\fe271795d46dc79937c4b43ff8642a00N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2072 wrote to memory of 732 N/A C:\Users\Admin\AppData\Local\Temp\fe271795d46dc79937c4b43ff8642a00N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 732 wrote to memory of 916 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 732 wrote to memory of 916 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 732 wrote to memory of 916 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 732 wrote to memory of 916 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 732 wrote to memory of 916 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 732 wrote to memory of 916 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 732 wrote to memory of 916 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 732 wrote to memory of 916 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\fe271795d46dc79937c4b43ff8642a00N.exe

"C:\Users\Admin\AppData\Local\Temp\fe271795d46dc79937c4b43ff8642a00N.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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 85.177.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 sysupdate24.ddns.net udp
US 8.8.8.8:53 50.23.12.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 25.140.123.92.in-addr.arpa udp
US 8.8.8.8:53 205.47.74.20.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

memory/2072-0-0x0000000075362000-0x0000000075363000-memory.dmp

memory/2072-1-0x0000000075360000-0x0000000075911000-memory.dmp

memory/2072-2-0x0000000075360000-0x0000000075911000-memory.dmp

memory/2072-3-0x0000000075360000-0x0000000075911000-memory.dmp

memory/2072-4-0x0000000075362000-0x0000000075363000-memory.dmp

memory/2072-5-0x0000000075360000-0x0000000075911000-memory.dmp

memory/2072-6-0x0000000075360000-0x0000000075911000-memory.dmp

memory/2072-7-0x0000000075360000-0x0000000075911000-memory.dmp

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

MD5 b49894ea219cb5e69fdc83ce4663b973
SHA1 66a62c88c2d5add123f53a0da7afd6e6e0327361
SHA256 5b4f62ce27751948ecfde9bb07db36e83bef4c015287db5ae0465577178fa529
SHA512 248ce1c5f311f69c07b8186bf486435e6662bba4b2227f3ca4c9ea3569ff2a20a9b997f5dcce3c451d03bafbedd5dab3ddd490b011700c5f28e75a3fcae8faf2

memory/732-21-0x0000000075360000-0x0000000075911000-memory.dmp

memory/732-23-0x0000000075360000-0x0000000075911000-memory.dmp

memory/732-24-0x0000000075360000-0x0000000075911000-memory.dmp

memory/2072-22-0x0000000075360000-0x0000000075911000-memory.dmp

memory/732-25-0x0000000075360000-0x0000000075911000-memory.dmp

memory/732-26-0x0000000075360000-0x0000000075911000-memory.dmp

memory/732-27-0x0000000075360000-0x0000000075911000-memory.dmp

memory/916-31-0x0000000000400000-0x0000000000438000-memory.dmp

memory/916-29-0x0000000000400000-0x0000000000438000-memory.dmp

memory/916-28-0x0000000000400000-0x0000000000438000-memory.dmp

memory/916-33-0x0000000075360000-0x0000000075911000-memory.dmp

memory/916-34-0x0000000075360000-0x0000000075911000-memory.dmp

memory/916-35-0x0000000075360000-0x0000000075911000-memory.dmp

memory/916-37-0x0000000075360000-0x0000000075911000-memory.dmp

memory/916-38-0x0000000075360000-0x0000000075911000-memory.dmp

memory/732-40-0x0000000075360000-0x0000000075911000-memory.dmp

memory/916-41-0x0000000075360000-0x0000000075911000-memory.dmp