Malware Analysis Report

2024-10-19 07:05

Sample ID 240806-yfnlvsycrr
Target 2468d8c314e35346873e34e7e7301de5c8d60a01602803a5f6af95e058b34274
SHA256 2468d8c314e35346873e34e7e7301de5c8d60a01602803a5f6af95e058b34274
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: 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

2468d8c314e35346873e34e7e7301de5c8d60a01602803a5f6af95e058b34274

Threat Level: Known bad

The file 2468d8c314e35346873e34e7e7301de5c8d60a01602803a5f6af95e058b34274 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

Enumerates physical storage devices

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious behavior: GetForegroundWindowSpam

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-06 19:43

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-06 19:43

Reported

2024-08-06 19:46

Platform

win10v2004-20240802-en

Max time kernel

148s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2468d8c314e35346873e34e7e7301de5c8d60a01602803a5f6af95e058b34274.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\2468d8c314e35346873e34e7e7301de5c8d60a01602803a5f6af95e058b34274.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-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" C:\Users\Admin\AppData\Local\Temp\2468d8c314e35346873e34e7e7301de5c8d60a01602803a5f6af95e058b34274.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 1440 set thread context of 1168 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\2468d8c314e35346873e34e7e7301de5c8d60a01602803a5f6af95e058b34274.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 2976 wrote to memory of 1440 N/A C:\Users\Admin\AppData\Local\Temp\2468d8c314e35346873e34e7e7301de5c8d60a01602803a5f6af95e058b34274.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2976 wrote to memory of 1440 N/A C:\Users\Admin\AppData\Local\Temp\2468d8c314e35346873e34e7e7301de5c8d60a01602803a5f6af95e058b34274.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2976 wrote to memory of 1440 N/A C:\Users\Admin\AppData\Local\Temp\2468d8c314e35346873e34e7e7301de5c8d60a01602803a5f6af95e058b34274.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 1440 wrote to memory of 1168 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 1440 wrote to memory of 1168 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 1440 wrote to memory of 1168 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 1440 wrote to memory of 1168 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 1440 wrote to memory of 1168 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 1440 wrote to memory of 1168 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 1440 wrote to memory of 1168 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 1440 wrote to memory of 1168 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\2468d8c314e35346873e34e7e7301de5c8d60a01602803a5f6af95e058b34274.exe

"C:\Users\Admin\AppData\Local\Temp\2468d8c314e35346873e34e7e7301de5c8d60a01602803a5f6af95e058b34274.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 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 76.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 sysupdate24.ddns.net udp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 37.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 77.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 69.190.18.2.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

memory/2976-0-0x0000000075462000-0x0000000075463000-memory.dmp

memory/2976-1-0x0000000075460000-0x0000000075A11000-memory.dmp

memory/2976-2-0x0000000075460000-0x0000000075A11000-memory.dmp

memory/2976-3-0x0000000075460000-0x0000000075A11000-memory.dmp

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

MD5 dac1fa9447dd92b9346dc54d3c2774d2
SHA1 7fac3c676a89312d68ac477320ce136589135922
SHA256 447bbbbb104a8fe84399b62632c93c72184648ea74a6275bde9ffdd2d5c32ffc
SHA512 7f616785bc631268a3017ad7f481ef69ad8d0a83a8d09efed86ff1a3f2943b1949c7514441a3da34a28823f94f7f070d5abee50d8c3e5f03caa3aa9d152f5c13

memory/2976-17-0x0000000075460000-0x0000000075A11000-memory.dmp

memory/1440-18-0x0000000075460000-0x0000000075A11000-memory.dmp

memory/1440-19-0x0000000075460000-0x0000000075A11000-memory.dmp

memory/1440-20-0x0000000075460000-0x0000000075A11000-memory.dmp

memory/1168-21-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1168-23-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1168-22-0x0000000000400000-0x0000000000438000-memory.dmp

memory/1168-26-0x0000000075460000-0x0000000075A11000-memory.dmp

memory/1168-27-0x0000000075460000-0x0000000075A11000-memory.dmp

memory/1168-29-0x0000000075460000-0x0000000075A11000-memory.dmp

memory/1440-30-0x0000000075460000-0x0000000075A11000-memory.dmp

memory/1440-32-0x0000000075460000-0x0000000075A11000-memory.dmp

memory/1168-33-0x0000000075460000-0x0000000075A11000-memory.dmp

memory/1168-34-0x0000000075460000-0x0000000075A11000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-06 19:43

Reported

2024-08-06 19:46

Platform

win7-20240708-en

Max time kernel

149s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2468d8c314e35346873e34e7e7301de5c8d60a01602803a5f6af95e058b34274.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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" C:\Users\Admin\AppData\Local\Temp\2468d8c314e35346873e34e7e7301de5c8d60a01602803a5f6af95e058b34274.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 2164 set thread context of 3040 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\2468d8c314e35346873e34e7e7301de5c8d60a01602803a5f6af95e058b34274.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 2480 wrote to memory of 2164 N/A C:\Users\Admin\AppData\Local\Temp\2468d8c314e35346873e34e7e7301de5c8d60a01602803a5f6af95e058b34274.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2480 wrote to memory of 2164 N/A C:\Users\Admin\AppData\Local\Temp\2468d8c314e35346873e34e7e7301de5c8d60a01602803a5f6af95e058b34274.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2480 wrote to memory of 2164 N/A C:\Users\Admin\AppData\Local\Temp\2468d8c314e35346873e34e7e7301de5c8d60a01602803a5f6af95e058b34274.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2480 wrote to memory of 2164 N/A C:\Users\Admin\AppData\Local\Temp\2468d8c314e35346873e34e7e7301de5c8d60a01602803a5f6af95e058b34274.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2480 wrote to memory of 2164 N/A C:\Users\Admin\AppData\Local\Temp\2468d8c314e35346873e34e7e7301de5c8d60a01602803a5f6af95e058b34274.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2480 wrote to memory of 2164 N/A C:\Users\Admin\AppData\Local\Temp\2468d8c314e35346873e34e7e7301de5c8d60a01602803a5f6af95e058b34274.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2480 wrote to memory of 2164 N/A C:\Users\Admin\AppData\Local\Temp\2468d8c314e35346873e34e7e7301de5c8d60a01602803a5f6af95e058b34274.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2164 wrote to memory of 3040 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2164 wrote to memory of 3040 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2164 wrote to memory of 3040 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2164 wrote to memory of 3040 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2164 wrote to memory of 3040 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2164 wrote to memory of 3040 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2164 wrote to memory of 3040 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2164 wrote to memory of 3040 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2164 wrote to memory of 3040 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2164 wrote to memory of 3040 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2164 wrote to memory of 3040 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2164 wrote to memory of 3040 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\2468d8c314e35346873e34e7e7301de5c8d60a01602803a5f6af95e058b34274.exe

"C:\Users\Admin\AppData\Local\Temp\2468d8c314e35346873e34e7e7301de5c8d60a01602803a5f6af95e058b34274.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/2480-0-0x0000000074AF1000-0x0000000074AF2000-memory.dmp

memory/2480-1-0x0000000074AF0000-0x000000007509B000-memory.dmp

memory/2480-2-0x0000000074AF0000-0x000000007509B000-memory.dmp

memory/2480-3-0x0000000074AF0000-0x000000007509B000-memory.dmp

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

MD5 751c1e0af02df648065dc3c0668b3b4a
SHA1 5fd8f3f15eb7b14073c72b9be15f89253f37c911
SHA256 046fb8a94a0caa8c6082caadbb0b99aebd94267d9606661a94f22497e04952c9
SHA512 e60d48dfb51bea82e7d3c692be54c5635d76ab70f38d9679b60eb08af168b9e0757928d8c1b9938408aaae42511296383c4bb18e6024088776e90487cfc4cfd8

memory/2480-12-0x0000000074AF0000-0x000000007509B000-memory.dmp

memory/2164-13-0x0000000074AF0000-0x000000007509B000-memory.dmp

memory/2164-16-0x0000000074AF0000-0x000000007509B000-memory.dmp

memory/2164-15-0x0000000074AF0000-0x000000007509B000-memory.dmp

memory/2164-14-0x0000000074AF0000-0x000000007509B000-memory.dmp

memory/3040-36-0x0000000000400000-0x0000000000438000-memory.dmp

memory/3040-34-0x0000000000400000-0x0000000000438000-memory.dmp

memory/3040-29-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/3040-28-0x0000000000400000-0x0000000000438000-memory.dmp

memory/3040-25-0x0000000000400000-0x0000000000438000-memory.dmp

memory/3040-22-0x0000000000400000-0x0000000000438000-memory.dmp

memory/3040-20-0x0000000000400000-0x0000000000438000-memory.dmp

memory/3040-18-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2164-38-0x0000000074AF0000-0x000000007509B000-memory.dmp

memory/2164-39-0x0000000074AF0000-0x000000007509B000-memory.dmp