nanocore | 3af587731a4050cb520beeb1b67fd2d0654db2edf3968945419218b85461b568

General

Target

18d78dbc4fbda0d58ccae4aa8840e560.exe
Size

593KB
MD5

18d78dbc4fbda0d58ccae4aa8840e560
SHA1

2951d8f45b9e1342beab4c8674bcce5672da1558
SHA256

3af587731a4050cb520beeb1b67fd2d0654db2edf3968945419218b85461b568
SHA512

2f8693e91b398e07998a6645f4790a9b61d1f75ebd07eb8d16cca7598594cf109bf535fb693d61bbc713237cfb2132285674e2cb8d73cde3a11a9249887e6f0b
SSDEEP

12288:NHiwc0mNSj83IvhRNi/XAOtqkLmximdS8Irlmo5+Vh7kPzft7:NCwcSj8YvhRoAOAkLx4O+V9Sl

Score

10^/10

nanocore discovery evasion execution keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

l3g3nd.sytes.net:3132

127.0.0.1:3132

Mutex

84ab735e-1aa1-40a6-9462-ae2224636060

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2024-06-28T14:22:27.694177336Z
bypass_user_account_control
false
bypass_user_account_control_data
PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTE2Ij8+DQo8VGFzayB2ZXJzaW9uPSIxLjIiIHhtbG5zPSJodHRwOi8vc2NoZW1hcy5taWNyb3NvZnQuY29tL3dpbmRvd3MvMjAwNC8wMi9taXQvdGFzayI+DQogIDxSZWdpc3RyYXRpb25JbmZvIC8+DQogIDxUcmlnZ2VycyAvPg0KICA8UHJpbmNpcGFscz4NCiAgICA8UHJpbmNpcGFsIGlkPSJBdXRob3IiPg0KICAgICAgPExvZ29uVHlwZT5JbnRlcmFjdGl2ZVRva2VuPC9Mb2dvblR5cGU+DQogICAgICA8UnVuTGV2ZWw+SGlnaGVzdEF2YWlsYWJsZTwvUnVuTGV2ZWw+DQogICAgPC9QcmluY2lwYWw+DQogIDwvUHJpbmNpcGFscz4NCiAgPFNldHRpbmdzPg0KICAgIDxNdWx0aXBsZUluc3RhbmNlc1BvbGljeT5QYXJhbGxlbDwvTXVsdGlwbGVJbnN0YW5jZXNQb2xpY3k+DQogICAgPERpc2FsbG93U3RhcnRJZk9uQmF0dGVyaWVzPmZhbHNlPC9EaXNhbGxvd1N0YXJ0SWZPbkJhdHRlcmllcz4NCiAgICA8U3RvcElmR29pbmdPbkJhdHRlcmllcz5mYWxzZTwvU3RvcElmR29pbmdPbkJhdHRlcmllcz4NCiAgICA8QWxsb3dIYXJkVGVybWluYXRlPnRydWU8L0FsbG93SGFyZFRlcm1pbmF0ZT4NCiAgICA8U3RhcnRXaGVuQXZhaWxhYmxlPmZhbHNlPC9TdGFydFdoZW5BdmFpbGFibGU+DQogICAgPFJ1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+ZmFsc2U8L1J1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+DQogICAgPElkbGVTZXR0aW5ncz4NCiAgICAgIDxTdG9wT25JZGxlRW5kPmZhbHNlPC9TdG9wT25JZGxlRW5kPg0KICAgICAgPFJlc3RhcnRPbklkbGU+ZmFsc2U8L1Jlc3RhcnRPbklkbGU+DQogICAgPC9JZGxlU2V0dGluZ3M+DQogICAgPEFsbG93U3RhcnRPbkRlbWFuZD50cnVlPC9BbGxvd1N0YXJ0T25EZW1hbmQ+DQogICAgPEVuYWJsZWQ+dHJ1ZTwvRW5hYmxlZD4NCiAgICA8SGlkZGVuPmZhbHNlPC9IaWRkZW4+DQogICAgPFJ1bk9ubHlJZklkbGU+ZmFsc2U8L1J1bk9ubHlJZklkbGU+DQogICAgPFdha2VUb1J1bj5mYWxzZTwvV2FrZVRvUnVuPg0KICAgIDxFeGVjdXRpb25UaW1lTGltaXQ+UFQwUzwvRXhlY3V0aW9uVGltZUxpbWl0Pg0KICAgIDxQcmlvcml0eT40PC9Qcmlvcml0eT4NCiAgPC9TZXR0aW5ncz4NCiAgPEFjdGlvbnMgQ29udGV4dD0iQXV0aG9yIj4NCiAgICA8RXhlYz4NCiAgICAgIDxDb21tYW5kPiIjRVhFQ1VUQUJMRVBBVEgiPC9Db21tYW5kPg0KICAgICAgPEFyZ3VtZW50cz4kKEFyZzApPC9Bcmd1bWVudHM+DQogICAgPC9FeGVjPg0KICA8L0FjdGlvbnM+DQo8L1Rhc2s+
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
3132
default_group
l3g3nd
enable_debug_mode
true
gc_threshold
1.048576e+07
keep_alive_timeout
30000
keyboard_logging
false
lan_timeout
2500
max_packet_size
1.048576e+07
mutex
84ab735e-1aa1-40a6-9462-ae2224636060
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
l3g3nd.sytes.net
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
false
set_critical_process
true
timeout_interval
5000
use_custom_dns_server
false
version
1.2.2.0
wan_timeout
8000

Signatures

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
3020	powershell.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\DOS Manager = "C:\\Program Files (x86)\\DOS Manager\\dosmgr.exe"	18d78dbc4fbda0d58ccae4aa8840e560.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	18d78dbc4fbda0d58ccae4aa8840e560.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2728 set thread context of 2552	2728	18d78dbc4fbda0d58ccae4aa8840e560.exe	32

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\DOS Manager\dosmgr.exe	18d78dbc4fbda0d58ccae4aa8840e560.exe
File opened for modification	C:\Program Files (x86)\DOS Manager\dosmgr.exe	18d78dbc4fbda0d58ccae4aa8840e560.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	18d78dbc4fbda0d58ccae4aa8840e560.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	18d78dbc4fbda0d58ccae4aa8840e560.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2564	schtasks.exe
2148	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
3020	powershell.exe
2552	18d78dbc4fbda0d58ccae4aa8840e560.exe
2552	18d78dbc4fbda0d58ccae4aa8840e560.exe
2552	18d78dbc4fbda0d58ccae4aa8840e560.exe
2552	18d78dbc4fbda0d58ccae4aa8840e560.exe
2552	18d78dbc4fbda0d58ccae4aa8840e560.exe
2552	18d78dbc4fbda0d58ccae4aa8840e560.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2552	18d78dbc4fbda0d58ccae4aa8840e560.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3020	powershell.exe
Token: SeDebugPrivilege	2552	18d78dbc4fbda0d58ccae4aa8840e560.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2728 wrote to memory of 3020	2728	18d78dbc4fbda0d58ccae4aa8840e560.exe	30
PID 2728 wrote to memory of 3020	2728	18d78dbc4fbda0d58ccae4aa8840e560.exe	30
PID 2728 wrote to memory of 3020	2728	18d78dbc4fbda0d58ccae4aa8840e560.exe	30
PID 2728 wrote to memory of 3020	2728	18d78dbc4fbda0d58ccae4aa8840e560.exe	30
PID 2728 wrote to memory of 2552	2728	18d78dbc4fbda0d58ccae4aa8840e560.exe	32
PID 2728 wrote to memory of 2552	2728	18d78dbc4fbda0d58ccae4aa8840e560.exe	32
PID 2728 wrote to memory of 2552	2728	18d78dbc4fbda0d58ccae4aa8840e560.exe	32
PID 2728 wrote to memory of 2552	2728	18d78dbc4fbda0d58ccae4aa8840e560.exe	32
PID 2728 wrote to memory of 2552	2728	18d78dbc4fbda0d58ccae4aa8840e560.exe	32
PID 2728 wrote to memory of 2552	2728	18d78dbc4fbda0d58ccae4aa8840e560.exe	32
PID 2728 wrote to memory of 2552	2728	18d78dbc4fbda0d58ccae4aa8840e560.exe	32
PID 2728 wrote to memory of 2552	2728	18d78dbc4fbda0d58ccae4aa8840e560.exe	32
PID 2728 wrote to memory of 2552	2728	18d78dbc4fbda0d58ccae4aa8840e560.exe	32
PID 2552 wrote to memory of 2564	2552	18d78dbc4fbda0d58ccae4aa8840e560.exe	33
PID 2552 wrote to memory of 2564	2552	18d78dbc4fbda0d58ccae4aa8840e560.exe	33
PID 2552 wrote to memory of 2564	2552	18d78dbc4fbda0d58ccae4aa8840e560.exe	33
PID 2552 wrote to memory of 2564	2552	18d78dbc4fbda0d58ccae4aa8840e560.exe	33
PID 2552 wrote to memory of 2148	2552	18d78dbc4fbda0d58ccae4aa8840e560.exe	35
PID 2552 wrote to memory of 2148	2552	18d78dbc4fbda0d58ccae4aa8840e560.exe	35
PID 2552 wrote to memory of 2148	2552	18d78dbc4fbda0d58ccae4aa8840e560.exe	35
PID 2552 wrote to memory of 2148	2552	18d78dbc4fbda0d58ccae4aa8840e560.exe	35

C:\Users\Admin\AppData\Local\Temp\18d78dbc4fbda0d58ccae4aa8840e560.exe
"C:\Users\Admin\AppData\Local\Temp\18d78dbc4fbda0d58ccae4aa8840e560.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2728
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\18d78dbc4fbda0d58ccae4aa8840e560.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3020
- C:\Users\Admin\AppData\Local\Temp\18d78dbc4fbda0d58ccae4aa8840e560.exe
  "C:\Users\Admin\AppData\Local\Temp\18d78dbc4fbda0d58ccae4aa8840e560.exe"
  2⤵
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2552
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DOS Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7CFD.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2564
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DOS Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7E55.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2148

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp7CFD.tmp

Filesize
1KB

MD5
a70c3b8a313c9b78ab56fe2e9e899786

SHA1
497d5c359f2cb18cc4e16b4f160b372022ae958c

SHA256
d6df7fedbe97712b87fa45d550e0e2f14967ada39480898b7b8b8d5a254f4d9c

SHA512
9042508d38af9f2191f13d839f43d1ceef3d72bff804bb0e5a1afa0321f0a2a9fa795c76618cc3447b2cb5f81f365870f6b625bb5a9ef056e1b3cae3e7ec21c6

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp7E55.tmp

Filesize
1KB

MD5
8f5713b14cee3089852f6c8d2a7a7d57

SHA1
8bffbea05715c6434ad593cce8a2c737f80ff788

SHA256
ab3ce102242c3144f87bcbfe83984a478821cd09e62c0e5211b2ab37dde02d2c

SHA512
82bd2378c2d6bb34a1ad3f2d26bfea583fc8403691bed6668521ba3e8bc7bdbdf142f872ddbc8e5251550f47c9bbee4eb3d0d6096f80d85259082cf68a454c72

Download Submit
memory/2552-37-0x0000000000AB0000-0x0000000000ABE000-memory.dmp

Filesize
56KB

Download
memory/2552-30-0x00000000005E0000-0x00000000005EA000-memory.dmp

Filesize
40KB

Download
memory/2552-48-0x0000000074410000-0x0000000074AFE000-memory.dmp

Filesize
6.9MB

Download
memory/2552-46-0x0000000004330000-0x0000000004344000-memory.dmp

Filesize
80KB

Download
memory/2552-45-0x0000000004300000-0x000000000432E000-memory.dmp

Filesize
184KB

Download
memory/2552-7-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2552-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2552-14-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2552-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2552-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2552-19-0x0000000074410000-0x0000000074AFE000-memory.dmp

Filesize
6.9MB

Download
memory/2552-8-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2552-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2552-9-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2552-44-0x00000000021A0000-0x00000000021AE000-memory.dmp

Filesize
56KB

Download
memory/2552-43-0x0000000002190000-0x00000000021A4000-memory.dmp

Filesize
80KB

Download
memory/2552-42-0x0000000000C60000-0x0000000000C70000-memory.dmp

Filesize
64KB

Download
memory/2552-31-0x00000000005F0000-0x000000000060E000-memory.dmp

Filesize
120KB

Download
memory/2552-41-0x0000000000C50000-0x0000000000C64000-memory.dmp

Filesize
80KB

Download
memory/2552-32-0x0000000000610000-0x000000000061A000-memory.dmp

Filesize
40KB

Download
memory/2552-35-0x0000000000680000-0x0000000000692000-memory.dmp

Filesize
72KB

Download
memory/2552-36-0x0000000000690000-0x00000000006AA000-memory.dmp

Filesize
104KB

Download
memory/2552-40-0x0000000000C40000-0x0000000000C4C000-memory.dmp

Filesize
48KB

Download
memory/2552-38-0x0000000000BE0000-0x0000000000BF2000-memory.dmp

Filesize
72KB

Download
memory/2552-39-0x0000000000BF0000-0x0000000000BFE000-memory.dmp

Filesize
56KB

Download
memory/2728-0-0x000000007441E000-0x000000007441F000-memory.dmp

Filesize
4KB

Download
memory/2728-1-0x0000000000CB0000-0x0000000000D4A000-memory.dmp

Filesize
616KB

Download
memory/2728-3-0x0000000000260000-0x0000000000270000-memory.dmp

Filesize
64KB

Download
memory/2728-2-0x0000000074410000-0x0000000074AFE000-memory.dmp

Filesize
6.9MB

Download
memory/2728-20-0x0000000074410000-0x0000000074AFE000-memory.dmp

Filesize
6.9MB

Download
memory/2728-6-0x00000000050E0000-0x000000000515A000-memory.dmp

Filesize
488KB

Download
memory/2728-5-0x0000000074410000-0x0000000074AFE000-memory.dmp

Filesize
6.9MB

Download
memory/2728-4-0x000000007441E000-0x000000007441F000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads