nanocore | 7cca4049c2f69de601bc66f11aa1ac345c8ecde47ae9cdbf264974620e3e49c1

Analysis

max time kernel
120s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
13-12-2024 03:02

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

clientcrypt.exe
Size

226KB
MD5

5a08a7191fbd328f22002351f1714104
SHA1

699ad5d028fdc6a79d29f5e89936b4d982d18317
SHA256

7cca4049c2f69de601bc66f11aa1ac345c8ecde47ae9cdbf264974620e3e49c1
SHA512

0b4ddb99866d3faf246094dbb5de70b39c5c7ff330170c8c25ec00c64de3665892f039ba2c73635b57c95902371e792a9f92b7ada85848e927b6a64c00ec2918
SSDEEP

6144:pY5JYbLFg6cd0Ys03R8fE7dxPOlMCjxfMeX61sNqZcvRJ:pYknaSYsmqHMCR+sNqK

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

candycanes.ddns.net:54984

127.0.0.1:54984

Mutex

ad4284d7-41a3-423a-b73e-1ea466b6d033

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2024-09-24T04:30:53.514681336Z
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
54984
default_group
Default
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
ad4284d7-41a3-423a-b73e-1ea466b6d033
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
candycanes.ddns.net
primary_dns_server
8.8.8.8
request_elevation
false
restart_delay
4994
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

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\UDP Service = "C:\\Program Files (x86)\\UDP Service\\udpsv.exe"	clientcrypt.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	clientcrypt.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2440 set thread context of 2560	2440	clientcrypt.exe	32

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\UDP Service\udpsv.exe	clientcrypt.exe
File opened for modification	C:\Program Files (x86)\UDP Service\udpsv.exe	clientcrypt.exe

System Location Discovery: System Language Discovery 1 TTPs 9 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	clientcrypt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	clientcrypt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2940	cmd.exe
2840	PING.EXE

Kills process with taskkill 1 IoCs

evasion

pid	Process
1180	taskkill.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2840	PING.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
2764	schtasks.exe
2916	schtasks.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
2440	clientcrypt.exe
2440	clientcrypt.exe
2560	clientcrypt.exe
2560	clientcrypt.exe
2560	clientcrypt.exe
2560	clientcrypt.exe
2560	clientcrypt.exe
2560	clientcrypt.exe
2560	clientcrypt.exe
2560	clientcrypt.exe
2560	clientcrypt.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2560	clientcrypt.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2440	clientcrypt.exe
Token: SeDebugPrivilege	2560	clientcrypt.exe
Token: SeDebugPrivilege	2560	clientcrypt.exe
Token: SeDebugPrivilege	1180	taskkill.exe

Suspicious use of WriteProcessMemory 41 IoCs

description	pid	Process	procid_target
PID 2440 wrote to memory of 2572	2440	clientcrypt.exe	31
PID 2440 wrote to memory of 2572	2440	clientcrypt.exe	31
PID 2440 wrote to memory of 2572	2440	clientcrypt.exe	31
PID 2440 wrote to memory of 2572	2440	clientcrypt.exe	31
PID 2440 wrote to memory of 2560	2440	clientcrypt.exe	32
PID 2440 wrote to memory of 2560	2440	clientcrypt.exe	32
PID 2440 wrote to memory of 2560	2440	clientcrypt.exe	32
PID 2440 wrote to memory of 2560	2440	clientcrypt.exe	32
PID 2440 wrote to memory of 2560	2440	clientcrypt.exe	32
PID 2440 wrote to memory of 2560	2440	clientcrypt.exe	32
PID 2440 wrote to memory of 2560	2440	clientcrypt.exe	32
PID 2440 wrote to memory of 2560	2440	clientcrypt.exe	32
PID 2440 wrote to memory of 2560	2440	clientcrypt.exe	32
PID 2560 wrote to memory of 2764	2560	clientcrypt.exe	33
PID 2560 wrote to memory of 2764	2560	clientcrypt.exe	33
PID 2560 wrote to memory of 2764	2560	clientcrypt.exe	33
PID 2560 wrote to memory of 2764	2560	clientcrypt.exe	33
PID 2560 wrote to memory of 2916	2560	clientcrypt.exe	35
PID 2560 wrote to memory of 2916	2560	clientcrypt.exe	35
PID 2560 wrote to memory of 2916	2560	clientcrypt.exe	35
PID 2560 wrote to memory of 2916	2560	clientcrypt.exe	35
PID 2560 wrote to memory of 2624	2560	clientcrypt.exe	37
PID 2560 wrote to memory of 2624	2560	clientcrypt.exe	37
PID 2560 wrote to memory of 2624	2560	clientcrypt.exe	37
PID 2560 wrote to memory of 2624	2560	clientcrypt.exe	37
PID 2560 wrote to memory of 848	2560	clientcrypt.exe	39
PID 2560 wrote to memory of 848	2560	clientcrypt.exe	39
PID 2560 wrote to memory of 848	2560	clientcrypt.exe	39
PID 2560 wrote to memory of 848	2560	clientcrypt.exe	39
PID 2560 wrote to memory of 2940	2560	clientcrypt.exe	41
PID 2560 wrote to memory of 2940	2560	clientcrypt.exe	41
PID 2560 wrote to memory of 2940	2560	clientcrypt.exe	41
PID 2560 wrote to memory of 2940	2560	clientcrypt.exe	41
PID 2940 wrote to memory of 1180	2940	cmd.exe	43
PID 2940 wrote to memory of 1180	2940	cmd.exe	43
PID 2940 wrote to memory of 1180	2940	cmd.exe	43
PID 2940 wrote to memory of 1180	2940	cmd.exe	43
PID 2940 wrote to memory of 2840	2940	cmd.exe	45
PID 2940 wrote to memory of 2840	2940	cmd.exe	45
PID 2940 wrote to memory of 2840	2940	cmd.exe	45
PID 2940 wrote to memory of 2840	2940	cmd.exe	45

C:\Users\Admin\AppData\Local\Temp\clientcrypt.exe
"C:\Users\Admin\AppData\Local\Temp\clientcrypt.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2440
- C:\Users\Admin\AppData\Local\Temp\clientcrypt.exe
  "C:\Users\Admin\AppData\Local\Temp\clientcrypt.exe"
  2⤵
  PID:2572
- C:\Users\Admin\AppData\Local\Temp\clientcrypt.exe
  "C:\Users\Admin\AppData\Local\Temp\clientcrypt.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:2560
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "UDP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpDB42.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2764
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "UDP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpDD84.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2916
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /delete /f /tn "UDP Service"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2624
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /delete /f /tn "UDP Service Task"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:848
- - C:\Windows\SysWOW64\cmd.exe
    "cmd.exe" /C taskkill /f /im "clientcrypt.exe" & ping -n 1 -w 3000 1.1.1.1 & type nul > "C:\Users\Admin\AppData\Local\Temp\clientcrypt.exe" & del /f /q "C:\Users\Admin\AppData\Local\Temp\clientcrypt.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Suspicious use of WriteProcessMemory
    PID:2940
  - - C:\Windows\SysWOW64\taskkill.exe
      taskkill /f /im "clientcrypt.exe"
      4⤵
      System Location Discovery: System Language Discovery
      Kills process with taskkill
      Suspicious use of AdjustPrivilegeToken
      PID:1180
  - - C:\Windows\SysWOW64\PING.EXE
      ping -n 1 -w 3000 1.1.1.1
      4⤵
      System Location Discovery: System Language Discovery
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:2840

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpDB42.tmp

Filesize
1KB

MD5
3fc330b17ca8771f94154dddd91201f4

SHA1
6cf409d918b7a2d715b3baa0780355b7cbc7fea6

SHA256
58fe951078e29394474858bf48f969b77d7722e1aeade7b39e7669f6a518cc53

SHA512
582b23ca03107a0d471bb126ea9d075a5070c286344f1c5b21bd19b3ac29e45c77b3f8fefc9a98bf22572f229c94a765022fb7b217ae87c3b91394567ce0b709

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpDD84.tmp

Filesize
1KB

MD5
0a24db62cb5b84309c4803346caaa25d

SHA1
67660778f61bb44168c33ed3fe56ed86cf9583e8

SHA256
38d38647af394a04ee6add9f05c43244f04e64a6b96257f4b241a5038efa82df

SHA512
d25d9df063f44595d5e0bf890755bd387655131ff369eeedf3d11ffcc6202ca4455bbb33a8a926dd06839cbd1ddec3d06809b3c66a82c6518aa14beaa469a548

Download Submit
memory/2440-0-0x0000000073E01000-0x0000000073E02000-memory.dmp

Filesize
4KB

Download
memory/2440-1-0x0000000073E00000-0x00000000743AB000-memory.dmp

Filesize
5.7MB

Download
memory/2440-2-0x0000000073E00000-0x00000000743AB000-memory.dmp

Filesize
5.7MB

Download
memory/2440-32-0x0000000073E00000-0x00000000743AB000-memory.dmp

Filesize
5.7MB

Download
memory/2440-23-0x0000000073E00000-0x00000000743AB000-memory.dmp

Filesize
5.7MB

Download
memory/2440-22-0x0000000073E00000-0x00000000743AB000-memory.dmp

Filesize
5.7MB

Download
memory/2560-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2560-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2560-7-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2560-19-0x0000000073E00000-0x00000000743AB000-memory.dmp

Filesize
5.7MB

Download
memory/2560-9-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2560-21-0x0000000073E00000-0x00000000743AB000-memory.dmp

Filesize
5.7MB

Download
memory/2560-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2560-20-0x0000000073E00000-0x00000000743AB000-memory.dmp

Filesize
5.7MB

Download
memory/2560-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2560-5-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2560-4-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2560-35-0x0000000073E00000-0x00000000743AB000-memory.dmp

Filesize
5.7MB

Download
memory/2560-43-0x0000000073E00000-0x00000000743AB000-memory.dmp

Filesize
5.7MB

Download