Malware Analysis Report

2024-10-23 19:39

Sample ID 240815-nqyjpsvbmq
Target ae1265e9fe0ac39bbe970a3fa66c64b0N.exe
SHA256 87a574cbf6233e2fd7a3872da22451ae49f6248cca5c900dab49207e0f0135b0
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

87a574cbf6233e2fd7a3872da22451ae49f6248cca5c900dab49207e0f0135b0

Threat Level: Known bad

The file ae1265e9fe0ac39bbe970a3fa66c64b0N.exe was found to be: Known bad.

Malicious Activity Summary

nanocore discovery 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

System Location Discovery: System Language Discovery

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-08-15 11:36

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-08-15 11:36

Reported

2024-08-15 11:39

Platform

win7-20240729-en

Max time kernel

149s

Max time network

26s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ae1265e9fe0ac39bbe970a3fa66c64b0N.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-1-5-21-2257386474-3982792636-3902186748-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" C:\Users\Admin\AppData\Local\Temp\ae1265e9fe0ac39bbe970a3fa66c64b0N.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 2392 set thread context of 2500 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\ae1265e9fe0ac39bbe970a3fa66c64b0N.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 2716 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\ae1265e9fe0ac39bbe970a3fa66c64b0N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2716 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\ae1265e9fe0ac39bbe970a3fa66c64b0N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2716 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\ae1265e9fe0ac39bbe970a3fa66c64b0N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2716 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\ae1265e9fe0ac39bbe970a3fa66c64b0N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2716 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\ae1265e9fe0ac39bbe970a3fa66c64b0N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2716 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\ae1265e9fe0ac39bbe970a3fa66c64b0N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2716 wrote to memory of 2392 N/A C:\Users\Admin\AppData\Local\Temp\ae1265e9fe0ac39bbe970a3fa66c64b0N.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2392 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2392 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2392 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2392 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2392 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2392 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2392 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2392 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2392 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2392 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2392 wrote to memory of 2500 N/A C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
PID 2392 wrote to memory of 2500 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\ae1265e9fe0ac39bbe970a3fa66c64b0N.exe

"C:\Users\Admin\AppData\Local\Temp\ae1265e9fe0ac39bbe970a3fa66c64b0N.exe"

C:\Windows\explorer.exe

"C:\Windows\explorer.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/2716-0-0x00000000749C1000-0x00000000749C2000-memory.dmp

memory/2716-1-0x00000000749C0000-0x0000000074F6B000-memory.dmp

memory/2716-2-0x00000000749C0000-0x0000000074F6B000-memory.dmp

memory/2716-3-0x00000000749C0000-0x0000000074F6B000-memory.dmp

memory/2716-4-0x00000000749C0000-0x0000000074F6B000-memory.dmp

memory/2716-5-0x00000000749C0000-0x0000000074F6B000-memory.dmp

memory/2716-6-0x00000000749C0000-0x0000000074F6B000-memory.dmp

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

MD5 073e776e2fa4fd6b5ddb563b87dea053
SHA1 7d65530ad5094112cfb5c7e37c7764213fc50c3b
SHA256 7d1e0c875028a43085b75839bfcd275249cb6a26cccfc58d35ccb9a36b629b6d
SHA512 730866d0695e9531b84a39623a42f24b72a8709e8d1801aed1ebc5c9509ef8bb3415ecae0123a68d524ebfd9b1a084271708a3802ed935bac797eab65d4077df

memory/2392-16-0x00000000749C0000-0x0000000074F6B000-memory.dmp

memory/2716-15-0x00000000749C0000-0x0000000074F6B000-memory.dmp

memory/2392-17-0x00000000749C0000-0x0000000074F6B000-memory.dmp

memory/2500-19-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2500-34-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2500-33-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2500-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2500-29-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2500-26-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2500-23-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2500-21-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2392-36-0x00000000749C0000-0x0000000074F6B000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-08-15 11:36

Reported

2024-08-15 11:37

Platform

win10v2004-20240802-en

Max time kernel

26s

Max time network

21s

Command Line

"C:\Users\Admin\AppData\Local\Temp\ae1265e9fe0ac39bbe970a3fa66c64b0N.exe"

Signatures

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\ae1265e9fe0ac39bbe970a3fa66c64b0N.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-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe" C:\Users\Admin\AppData\Local\Temp\ae1265e9fe0ac39bbe970a3fa66c64b0N.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\ae1265e9fe0ac39bbe970a3fa66c64b0N.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\ae1265e9fe0ac39bbe970a3fa66c64b0N.exe

"C:\Users\Admin\AppData\Local\Temp\ae1265e9fe0ac39bbe970a3fa66c64b0N.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 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 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 22.160.190.20.in-addr.arpa udp
US 13.107.21.237:443 g.bing.com tcp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 237.21.107.13.in-addr.arpa udp
US 8.8.8.8:53 88.156.103.20.in-addr.arpa udp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp

Files

memory/4592-0-0x00000000748A2000-0x00000000748A3000-memory.dmp

memory/4592-1-0x00000000748A0000-0x0000000074E51000-memory.dmp

memory/4592-2-0x00000000748A0000-0x0000000074E51000-memory.dmp

memory/4592-3-0x00000000748A0000-0x0000000074E51000-memory.dmp

memory/4592-4-0x00000000748A2000-0x00000000748A3000-memory.dmp

memory/4592-5-0x00000000748A0000-0x0000000074E51000-memory.dmp

memory/4592-6-0x00000000748A0000-0x0000000074E51000-memory.dmp

memory/4592-7-0x00000000748A0000-0x0000000074E51000-memory.dmp

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

MD5 9b5367092ff3a75fef7c0ce9f8e5c41b
SHA1 dd2b6cd3536436e42b6c4b0bb30d815502c8c163
SHA256 b1628c7693da2efc60ac42669299a2be7528806f3517c9362231b3acf13e6e7b
SHA512 465f233ee48270b0acf9d97020e7f7d60d651b1b998f65f40cdd5bbe23c1074ce0de45a48b13c61ce27bc51a9ce5dd0aa0095f0b75dc95fd4fc9ddaf5d5c851c

memory/4592-22-0x00000000748A0000-0x0000000074E51000-memory.dmp

memory/1128-21-0x00000000748A0000-0x0000000074E51000-memory.dmp

memory/1128-23-0x00000000748A0000-0x0000000074E51000-memory.dmp

memory/1128-24-0x00000000748A0000-0x0000000074E51000-memory.dmp

memory/1128-25-0x00000000748A0000-0x0000000074E51000-memory.dmp