Malware Analysis Report

2025-04-13 20:48

Sample ID 250203-lh895ayrck
Target P I copy.docs.x.zip
SHA256 1a649e1885be114a4140729e822438aa686170685964f8853b391b3ed7d633de
Tags
nanocore defense_evasion discovery 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

1a649e1885be114a4140729e822438aa686170685964f8853b391b3ed7d633de

Threat Level: Known bad

The file P I copy.docs.x.zip was found to be: Known bad.

Malicious Activity Summary

nanocore defense_evasion discovery keylogger persistence spyware stealer trojan

NanoCore

Nanocore family

Adds Run key to start application

Checks whether UAC is enabled

Suspicious use of SetThreadContext

Drops file in Program Files directory

System Location Discovery: System Language Discovery

Unsigned PE

Scheduled Task/Job: Scheduled Task

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: GetForegroundWindowSpam

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-02-03 09:33

Signatures

Unsigned PE

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

Analysis: behavioral2

Detonation Overview

Submitted

2025-02-03 09:33

Reported

2025-02-03 09:35

Platform

win10v2004-20241007-en

Max time kernel

149s

Max time network

151s

Command Line

"C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Nanocore family

nanocore

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\ARP Host = "C:\\Program Files (x86)\\ARP Host\\arphost.exe" C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe N/A

Checks whether UAC is enabled

defense_evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 1620 set thread context of 532 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe

Drops file in Program Files directory

Description Indicator Process Target
File opened for modification C:\Program Files (x86)\ARP Host\arphost.exe C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe N/A
File created C:\Program Files (x86)\ARP Host\arphost.exe C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe N/A

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\P I copy.docs.x.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\schtasks.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\schtasks.exe N/A

Scheduled Task/Job: Scheduled Task

persistence execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 1620 wrote to memory of 532 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe
PID 1620 wrote to memory of 532 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe
PID 1620 wrote to memory of 532 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe
PID 1620 wrote to memory of 532 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe
PID 1620 wrote to memory of 532 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe
PID 1620 wrote to memory of 532 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe
PID 1620 wrote to memory of 532 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe
PID 1620 wrote to memory of 532 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe
PID 532 wrote to memory of 220 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Windows\SysWOW64\schtasks.exe
PID 532 wrote to memory of 220 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Windows\SysWOW64\schtasks.exe
PID 532 wrote to memory of 220 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Windows\SysWOW64\schtasks.exe
PID 532 wrote to memory of 3060 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Windows\SysWOW64\schtasks.exe
PID 532 wrote to memory of 3060 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Windows\SysWOW64\schtasks.exe
PID 532 wrote to memory of 3060 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Windows\SysWOW64\schtasks.exe

Processes

C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe

"C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe"

C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe

"C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe"

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "ARP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmpCED9.tmp"

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "ARP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpCF18.tmp"

Network

Country Destination Domain Proto
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 180.129.81.91.in-addr.arpa udp
US 8.8.8.8:53 73.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 167.173.78.104.in-addr.arpa udp
NL 91.92.240.88:2777 tcp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 212.20.149.52.in-addr.arpa udp
US 8.8.8.8:53 171.39.242.20.in-addr.arpa udp
NL 91.92.240.88:2777 tcp
US 8.8.8.8:53 167.190.18.2.in-addr.arpa udp
NL 91.92.240.88:2777 tcp
NL 91.92.240.88:2777 tcp
NL 91.92.240.88:2777 tcp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp
NL 91.92.240.88:2777 tcp
NL 91.92.240.88:2777 tcp
NL 91.92.240.88:2777 tcp
NL 91.92.240.88:2777 tcp

Files

memory/1620-0-0x000000007486E000-0x000000007486F000-memory.dmp

memory/1620-1-0x0000000000D00000-0x0000000000DB6000-memory.dmp

memory/1620-2-0x0000000005E30000-0x00000000063D4000-memory.dmp

memory/1620-3-0x00000000057B0000-0x0000000005842000-memory.dmp

memory/1620-4-0x0000000074860000-0x0000000075010000-memory.dmp

memory/1620-5-0x0000000005860000-0x000000000586A000-memory.dmp

memory/1620-6-0x0000000005A10000-0x0000000005AAC000-memory.dmp

memory/1620-7-0x0000000005E00000-0x0000000005E1E000-memory.dmp

memory/1620-8-0x000000007486E000-0x000000007486F000-memory.dmp

memory/1620-9-0x0000000074860000-0x0000000075010000-memory.dmp

memory/1620-10-0x00000000051B0000-0x000000000522E000-memory.dmp

memory/532-11-0x0000000000400000-0x0000000000438000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\P I copy.docs.x.exe.log

MD5 8ec831f3e3a3f77e4a7b9cd32b48384c
SHA1 d83f09fd87c5bd86e045873c231c14836e76a05c
SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
SHA512 26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

memory/532-14-0x0000000074860000-0x0000000075010000-memory.dmp

memory/1620-15-0x0000000074860000-0x0000000075010000-memory.dmp

memory/532-16-0x0000000074860000-0x0000000075010000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmpCED9.tmp

MD5 01f9a86d9610760a6fef15b42f51421c
SHA1 6712e76ab3cde995d646c65b294201a63c23a221
SHA256 ce259ad39d30c453057fc465a0b4106ddbb7d5b01abdc01d41cf8f0d77a4f1e8
SHA512 10b5c22823e33eb169221ddfbc1119bb2c6e6ca61c143a90fb812973fe611df18afb4087d142b96705fdcd66bae880a29555ffd8eef85a68f3df6a69c7f97e04

C:\Users\Admin\AppData\Local\Temp\tmpCF18.tmp

MD5 447ab194ab36cb1d20078d80e502b1b2
SHA1 a947b3b2c91d7c50bb8d39bd4fc91a0d0cc5b1c0
SHA256 8d5304b20b7d7dea223ce2738e5668054250d57bf6bed86b305b69924bd472f5
SHA512 49ddc557f7f6635627eea9bf0fa12a14b7b13edb235ed560ee0044a7f87fe27b686ff878d347d0273d92eb0b318b8c2bca85c0fbf42d586ed7d7da39eac6a327

memory/532-24-0x0000000004EB0000-0x0000000004EBA000-memory.dmp

memory/532-25-0x0000000005F10000-0x0000000005F2E000-memory.dmp

memory/532-26-0x0000000006040000-0x000000000604A000-memory.dmp

memory/532-27-0x0000000074860000-0x0000000075010000-memory.dmp

memory/532-28-0x0000000074860000-0x0000000075010000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2025-02-03 09:33

Reported

2025-02-03 09:35

Platform

win7-20240903-en

Max time kernel

148s

Max time network

149s

Command Line

"C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe"

Signatures

NanoCore

keylogger trojan stealer spyware nanocore

Nanocore family

nanocore

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\SCSI Host = "C:\\Program Files (x86)\\SCSI Host\\scsihost.exe" C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe N/A

Checks whether UAC is enabled

defense_evasion trojan
Description Indicator Process Target
Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe N/A

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 2492 set thread context of 2036 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe

Drops file in Program Files directory

Description Indicator Process Target
File created C:\Program Files (x86)\SCSI Host\scsihost.exe C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe N/A
File opened for modification C:\Program Files (x86)\SCSI Host\scsihost.exe C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe N/A

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\P I copy.docs.x.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\schtasks.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\SysWOW64\schtasks.exe N/A

Scheduled Task/Job: Scheduled Task

persistence execution
Description Indicator Process Target
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A
N/A N/A C:\Windows\SysWOW64\schtasks.exe N/A

Suspicious behavior: GetForegroundWindowSpam

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 2492 wrote to memory of 2036 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe
PID 2492 wrote to memory of 2036 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe
PID 2492 wrote to memory of 2036 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe
PID 2492 wrote to memory of 2036 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe
PID 2492 wrote to memory of 2036 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe
PID 2492 wrote to memory of 2036 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe
PID 2492 wrote to memory of 2036 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe
PID 2492 wrote to memory of 2036 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe
PID 2492 wrote to memory of 2036 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe
PID 2036 wrote to memory of 2920 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Windows\SysWOW64\schtasks.exe
PID 2036 wrote to memory of 2920 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Windows\SysWOW64\schtasks.exe
PID 2036 wrote to memory of 2920 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Windows\SysWOW64\schtasks.exe
PID 2036 wrote to memory of 2920 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Windows\SysWOW64\schtasks.exe
PID 2036 wrote to memory of 2852 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Windows\SysWOW64\schtasks.exe
PID 2036 wrote to memory of 2852 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Windows\SysWOW64\schtasks.exe
PID 2036 wrote to memory of 2852 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Windows\SysWOW64\schtasks.exe
PID 2036 wrote to memory of 2852 N/A C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe C:\Windows\SysWOW64\schtasks.exe

Processes

C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe

"C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe"

C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe

"C:\Users\Admin\AppData\Local\Temp\P I copy.docs.x.exe"

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "SCSI Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmpF92E.tmp"

C:\Windows\SysWOW64\schtasks.exe

"schtasks.exe" /create /f /tn "SCSI Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpF9DA.tmp"

Network

Country Destination Domain Proto
NL 91.92.240.88:2777 tcp
NL 91.92.240.88:2777 tcp
NL 91.92.240.88:2777 tcp
NL 91.92.240.88:2777 tcp
NL 91.92.240.88:2777 tcp
NL 91.92.240.88:2777 tcp
NL 91.92.240.88:2777 tcp
NL 91.92.240.88:2777 tcp
NL 91.92.240.88:2777 tcp

Files

memory/2492-0-0x00000000748CE000-0x00000000748CF000-memory.dmp

memory/2492-1-0x0000000000310000-0x00000000003C6000-memory.dmp

memory/2492-2-0x00000000748C0000-0x0000000074FAE000-memory.dmp

memory/2492-3-0x00000000004D0000-0x00000000004EE000-memory.dmp

memory/2492-4-0x00000000748CE000-0x00000000748CF000-memory.dmp

memory/2492-5-0x00000000748C0000-0x0000000074FAE000-memory.dmp

memory/2492-6-0x00000000006E0000-0x000000000075E000-memory.dmp

memory/2036-7-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2036-17-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2036-15-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2036-18-0x00000000748C0000-0x0000000074FAE000-memory.dmp

memory/2492-19-0x00000000748C0000-0x0000000074FAE000-memory.dmp

memory/2036-13-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2036-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

memory/2036-10-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2036-9-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2036-8-0x0000000000400000-0x0000000000438000-memory.dmp

memory/2036-20-0x00000000748C0000-0x0000000074FAE000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmpF92E.tmp

MD5 01f9a86d9610760a6fef15b42f51421c
SHA1 6712e76ab3cde995d646c65b294201a63c23a221
SHA256 ce259ad39d30c453057fc465a0b4106ddbb7d5b01abdc01d41cf8f0d77a4f1e8
SHA512 10b5c22823e33eb169221ddfbc1119bb2c6e6ca61c143a90fb812973fe611df18afb4087d142b96705fdcd66bae880a29555ffd8eef85a68f3df6a69c7f97e04

C:\Users\Admin\AppData\Local\Temp\tmpF9DA.tmp

MD5 9a559f229be0944bc3dc813cde333f50
SHA1 0e97c97eea032b499ff060e799581e32beeceb09
SHA256 a63d853679aa655cced3b62a10855c56f9efd9b50770738b408d728008f73330
SHA512 4cbb2f77283500e86ecf79fd2cbd31d10c3af2fcf6c9a557ee0b1edead229dc07d63a5030b60df57458d52ef8c2a42ec199d2d4cdca387400d047df25b593c68

memory/2036-28-0x00000000005D0000-0x00000000005DA000-memory.dmp

memory/2036-29-0x00000000005E0000-0x00000000005FE000-memory.dmp

memory/2036-30-0x0000000000650000-0x000000000065A000-memory.dmp

memory/2036-31-0x00000000748C0000-0x0000000074FAE000-memory.dmp

memory/2036-32-0x00000000748C0000-0x0000000074FAE000-memory.dmp