nanocore | a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80

General

Target

a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe
Size

767KB
MD5

1ee4aca2ed3fbc7d17f8a86c751c1cc2
SHA1

79fdfd56292f04c800afaa837b445e780355f3fb
SHA256

a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80
SHA512

2aa63b5a446b06d0e1149935ab3ea4803d797355ae4ac092abd5c3e7395bc9bb1dcd56f4489b144bffea42c916f9b22be250a09fd22634ba8de04a054cb7a910
SSDEEP

12288:WAghZfmc9iuf6+U4yE4tbq8OzrO3D3GY76d0QQ9qUqkhwHGnpaU:bg/fz16+HyAziX700QQ9dqkhGsZ

Score

10^/10

nanocore discovery evasion execution keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

66.63.187.113:1664

Mutex

a376f716-2f77-4943-a431-3a3bcb53b7c0

Attributes

activate_away_mode
true
backup_connection_host
66.63.187.113
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2024-08-05T03:49:33.827385136Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1664
default_group
CAT
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
a376f716-2f77-4943-a431-3a3bcb53b7c0
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
66.63.187.113
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
Nanocore family
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
2792	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\PCI Manager = "C:\\Program Files (x86)\\PCI Manager\\pcimgr.exe"	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.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	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2200 set thread context of 2684	2200	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe	32

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\PCI Manager\pcimgr.exe	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe
File opened for modification	C:\Program Files (x86)\PCI Manager\pcimgr.exe	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.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
2568	schtasks.exe
1620	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
2792	powershell.exe
2684	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe
2684	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe
2684	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe
2684	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe
2684	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe
2684	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2684	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2792	powershell.exe
Token: SeDebugPrivilege	2684	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2200 wrote to memory of 2792	2200	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe	30
PID 2200 wrote to memory of 2792	2200	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe	30
PID 2200 wrote to memory of 2792	2200	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe	30
PID 2200 wrote to memory of 2792	2200	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe	30
PID 2200 wrote to memory of 2684	2200	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe	32
PID 2200 wrote to memory of 2684	2200	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe	32
PID 2200 wrote to memory of 2684	2200	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe	32
PID 2200 wrote to memory of 2684	2200	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe	32
PID 2200 wrote to memory of 2684	2200	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe	32
PID 2200 wrote to memory of 2684	2200	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe	32
PID 2200 wrote to memory of 2684	2200	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe	32
PID 2200 wrote to memory of 2684	2200	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe	32
PID 2200 wrote to memory of 2684	2200	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe	32
PID 2684 wrote to memory of 2568	2684	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe	33
PID 2684 wrote to memory of 2568	2684	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe	33
PID 2684 wrote to memory of 2568	2684	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe	33
PID 2684 wrote to memory of 2568	2684	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe	33
PID 2684 wrote to memory of 1620	2684	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe	35
PID 2684 wrote to memory of 1620	2684	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe	35
PID 2684 wrote to memory of 1620	2684	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe	35
PID 2684 wrote to memory of 1620	2684	a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe	35

C:\Users\Admin\AppData\Local\Temp\a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe
"C:\Users\Admin\AppData\Local\Temp\a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2200
- 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\a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2792
- C:\Users\Admin\AppData\Local\Temp\a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.exe
  "C:\Users\Admin\AppData\Local\Temp\a920dfb486d57b7d60d6bad4643d4f425802ce9ac8c520f9771d6689b65ffe80.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:2684
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "PCI Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmpCE09.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2568
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "PCI Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpCEC5.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1620

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\tmpCE09.tmp

Filesize
1KB

MD5
6b8b04c891e2c91ec6d6f4360d0d3a12

SHA1
78d40859e9240ac3fb07ee3424f717ce9c89de82

SHA256
35fdc7656cb3f0270979d618d8ecd50b4f2325652dd2c476b9d727207b6e4dae

SHA512
998d0b637ffe6f110fcbf29a28c7d73a83de4b2f35c1ced4a0ac00032922c7e88ea9656de46f2522373bd5a671a92e9d7be46d8a080becc47ac5be4cbae05ceb

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpCEC5.tmp

Filesize
1KB

MD5
da7aec92f4b1e721f6eeccec52db4901

SHA1
e1bc32c2277c42aec2356f6242ee427af53c2a52

SHA256
7bcfd205f07bffa61c788644c1d6639d03126c46fdbd6550f7e21795dc78b3c0

SHA512
340e234cdfb1b327369378131629f0ff5538c6a1c578c59bfc1b66442ff3f5793f119db13b8d3f158969071eb0fc0c7fbe5c79094572fac0cea528489bf11720

Download Submit
memory/2200-20-0x0000000073C00000-0x00000000742EE000-memory.dmp

Filesize
6.9MB

Download
memory/2200-1-0x0000000000D60000-0x0000000000E26000-memory.dmp

Filesize
792KB

Download
memory/2200-2-0x0000000073C00000-0x00000000742EE000-memory.dmp

Filesize
6.9MB

Download
memory/2200-3-0x0000000000760000-0x000000000077C000-memory.dmp

Filesize
112KB

Download
memory/2200-4-0x0000000073C0E000-0x0000000073C0F000-memory.dmp

Filesize
4KB

Download
memory/2200-5-0x0000000073C00000-0x00000000742EE000-memory.dmp

Filesize
6.9MB

Download
memory/2200-6-0x0000000000980000-0x00000000009FA000-memory.dmp

Filesize
488KB

Download
memory/2200-0-0x0000000073C0E000-0x0000000073C0F000-memory.dmp

Filesize
4KB

Download
memory/2684-10-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2684-32-0x00000000005A0000-0x00000000005AA000-memory.dmp

Filesize
40KB

Download
memory/2684-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2684-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2684-7-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2684-19-0x0000000073C00000-0x00000000742EE000-memory.dmp

Filesize
6.9MB

Download
memory/2684-9-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2684-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2684-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2684-30-0x0000000000590000-0x000000000059A000-memory.dmp

Filesize
40KB

Download
memory/2684-31-0x0000000000D30000-0x0000000000D4E000-memory.dmp

Filesize
120KB

Download
memory/2684-8-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2684-35-0x0000000000AA0000-0x0000000000AB2000-memory.dmp

Filesize
72KB

Download
memory/2684-36-0x0000000004280000-0x000000000429A000-memory.dmp

Filesize
104KB

Download
memory/2684-37-0x0000000000B40000-0x0000000000B4E000-memory.dmp

Filesize
56KB

Download
memory/2684-39-0x0000000000D50000-0x0000000000D5E000-memory.dmp

Filesize
56KB

Download
memory/2684-38-0x0000000000BD0000-0x0000000000BE2000-memory.dmp

Filesize
72KB

Download
memory/2684-41-0x00000000042A0000-0x00000000042B0000-memory.dmp

Filesize
64KB

Download
memory/2684-40-0x0000000004230000-0x0000000004244000-memory.dmp

Filesize
80KB

Download
memory/2684-42-0x00000000047A0000-0x00000000047B4000-memory.dmp

Filesize
80KB

Download
memory/2684-43-0x00000000048F0000-0x00000000048FE000-memory.dmp

Filesize
56KB

Download
memory/2684-44-0x0000000004920000-0x000000000494E000-memory.dmp

Filesize
184KB

Download
memory/2684-45-0x0000000004950000-0x0000000004964000-memory.dmp

Filesize
80KB

Download
memory/2684-47-0x0000000073C00000-0x00000000742EE000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads