Malware Analysis Report

2024-12-07 14:05

Sample ID 241113-bdcegstfrg
Target 8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.exe
SHA256 8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339
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

8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339

Threat Level: Known bad

The file 8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.exe was found to be: Known bad.

Malicious Activity Summary

nanocore discovery evasion keylogger persistence spyware stealer trojan

Nanocore family

NanoCore

Checks computer location settings

Executes dropped EXE

Loads dropped DLL

Checks whether UAC is enabled

Adds Run key to start application

Suspicious use of SetThreadContext

Unsigned PE

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-13 01:01

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-13 01:01

Reported

2024-11-13 01:03

Platform

win7-20241010-en

Max time kernel

119s

Max time network

120s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Nanocore family

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-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" C:\Users\Admin\AppData\Local\Temp\8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.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 2664 set thread context of 2740 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\8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.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 2844 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2844 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2844 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2844 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2844 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2844 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2844 wrote to memory of 2664 N/A C:\Users\Admin\AppData\Local\Temp\8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2664 wrote to memory of 2740 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2664 wrote to memory of 2740 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2664 wrote to memory of 2740 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2664 wrote to memory of 2740 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2664 wrote to memory of 2740 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2664 wrote to memory of 2740 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2664 wrote to memory of 2740 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2664 wrote to memory of 2740 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2664 wrote to memory of 2740 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2664 wrote to memory of 2740 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2664 wrote to memory of 2740 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2664 wrote to memory of 2740 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\8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.exe

"C:\Users\Admin\AppData\Local\Temp\8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.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/2844-0-0x0000000074A41000-0x0000000074A42000-memory.dmp

memory/2844-1-0x0000000074A40000-0x0000000074FEB000-memory.dmp

memory/2844-2-0x0000000074A40000-0x0000000074FEB000-memory.dmp

memory/2844-3-0x0000000074A40000-0x0000000074FEB000-memory.dmp

memory/2844-4-0x0000000074A40000-0x0000000074FEB000-memory.dmp

memory/2844-5-0x0000000074A40000-0x0000000074FEB000-memory.dmp

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

MD5 b1bd8be43738199c6bc362e51fa1ba3a
SHA1 23a59ed82d118d1571e68b6ef71b52d8c037aaff
SHA256 a700a7ff28dff65fcc081d85071786f5f47115c643836e862e7da339831ec900
SHA512 0d0c9ddf0ad9868adfa72439e6478b8384f2c094471ab42ca4a0943b557a10ef526d595c474914bd2dcdc08a9b8138b81065b5f72280bf875e5c150ed9a3da57

memory/2664-17-0x0000000074A40000-0x0000000074FEB000-memory.dmp

memory/2664-16-0x0000000074A40000-0x0000000074FEB000-memory.dmp

memory/2664-15-0x0000000074A40000-0x0000000074FEB000-memory.dmp

memory/2844-14-0x0000000074A40000-0x0000000074FEB000-memory.dmp

memory/2664-18-0x0000000074A40000-0x0000000074FEB000-memory.dmp

memory/2664-19-0x0000000074A40000-0x0000000074FEB000-memory.dmp

memory/2740-21-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2740-23-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2740-39-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2740-37-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2740-32-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2740-31-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2740-28-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2740-25-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2664-41-0x0000000074A40000-0x0000000074FEB000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-13 01:01

Reported

2024-11-13 01:03

Platform

win10v2004-20241007-en

Max time kernel

94s

Max time network

95s

Command Line

"C:\Users\Admin\AppData\Local\Temp\8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" C:\Users\Admin\AppData\Local\Temp\8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.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\8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.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\8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.exe

"C:\Users\Admin\AppData\Local\Temp\8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.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 8.8.8.8:53 232.168.11.51.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 71.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 217.106.137.52.in-addr.arpa udp
US 8.8.8.8:53 200.163.202.172.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
US 8.8.8.8:53 13.227.111.52.in-addr.arpa udp

Files

memory/1364-0-0x0000000074952000-0x0000000074953000-memory.dmp

memory/1364-1-0x0000000074950000-0x0000000074F01000-memory.dmp

memory/1364-2-0x0000000074950000-0x0000000074F01000-memory.dmp

memory/1364-3-0x0000000074950000-0x0000000074F01000-memory.dmp

memory/1364-4-0x0000000074952000-0x0000000074953000-memory.dmp

memory/1364-5-0x0000000074950000-0x0000000074F01000-memory.dmp

memory/1364-6-0x0000000074950000-0x0000000074F01000-memory.dmp

memory/1364-7-0x0000000074950000-0x0000000074F01000-memory.dmp

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

MD5 a63ca49a0aa4d85250d56441405f32fa
SHA1 3c0c4c8a6f35323065c4abc0b2f784cdfd40e2ff
SHA256 6f3495d70776c5a637f79740eafd8438aaffccd6bc55b5134290a922bb9a12b2
SHA512 af5ad255dc35b6b0a1a3e883c8e28a764e15f27bb685b670458051fe5d02be61e7e0575dd80ecb4e063d815ba4ba113f8fce74c160f74360f6d5cc1c99eb21c9

memory/1364-21-0x0000000074950000-0x0000000074F01000-memory.dmp

memory/2928-23-0x0000000074950000-0x0000000074F01000-memory.dmp

memory/2928-22-0x0000000074950000-0x0000000074F01000-memory.dmp

memory/2928-24-0x0000000074950000-0x0000000074F01000-memory.dmp

memory/2928-25-0x0000000074950000-0x0000000074F01000-memory.dmp

memory/2928-26-0x0000000074950000-0x0000000074F01000-memory.dmp

memory/2928-27-0x0000000074950000-0x0000000074F01000-memory.dmp

memory/2928-29-0x0000000074950000-0x0000000074F01000-memory.dmp