nanocore | 30c3ac8b70c175f99f714f34feb8fae9192260335f2372831fceaed3f4a9e861

Analysis

max time kernel
150s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
24-11-2024 11:26

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General

Target

945d30684e328c1dc007ed0f71499788_JaffaCakes118.exe
Size

858KB
MD5

945d30684e328c1dc007ed0f71499788
SHA1

ac5e19f1e2c964ff70075c66506fee1ac19e79af
SHA256

30c3ac8b70c175f99f714f34feb8fae9192260335f2372831fceaed3f4a9e861
SHA512

b0835bb184a227dc12653e142140c777c277e18e5f9cfbe40653bc596e8d50e5a251382533aed75cd0c0f451b7aac254442f2e970306275f9cf62eb97337be50
SSDEEP

12288:faWzgMg7v3qnCiMErQohh0F4CCJ8lny/QIM1QeauPldhsGepO22Nn:CaHMv6Corjqny/QIMSe1deWn

Score

10^/10

nanocore defense_evasion discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

193.124.180.214:8800

Mutex

3ce9ef1c-7f3a-4d4f-8ef7-99e9840932ab

Attributes

activate_away_mode
true
backup_connection_host
193.124.180.214
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2015-10-26T15:21:07.509449736Z
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
8800
default_group
AAA
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
3ce9ef1c-7f3a-4d4f-8ef7-99e9840932ab
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
193.124.180.214
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

Executes dropped EXE 1 IoCs

Processes:

system.exe

pid	Process
4072	system.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

RegAsm.exesystem.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\PCI Subsystem = "C:\\Program Files (x86)\\PCI Subsystem\\pciss.exe"	RegAsm.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\Microsoft Corporation ZdchLQZIJQJCBedD = "C:\\Users\\Admin\\AppData\\Roaming\\ZdchLQZIJQJCBedD.exe"	system.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

RegAsm.exe

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

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

Processes:

resource	yara_rule
behavioral2/files/0x000c000000023b72-10.dat	autoit_exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

system.exe

description	pid	Process	procid_target
PID 4072 set thread context of 3544	4072	system.exe	84

Drops file in Program Files directory 2 IoCs

Processes:

RegAsm.exe

description	ioc	Process
File created	C:\Program Files (x86)\PCI Subsystem\pciss.exe	RegAsm.exe
File opened for modification	C:\Program Files (x86)\PCI Subsystem\pciss.exe	RegAsm.exe

Subvert Trust Controls: Mark-of-the-Web Bypass 1 TTPs 3 IoCs

When files are downloaded from the Internet, they are tagged with a hidden NTFS Alternate Data Stream (ADS) named Zone.Identifier with a specific value known as the MOTW.

defense_evasion

SIP and Trust Provider Hijacking

T1553.003

Processes:

system.exe945d30684e328c1dc007ed0f71499788_JaffaCakes118.exe

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\system.exe:Zone.Identifier:$DATA	system.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\ZdchLQZIJQJCBedD.exe:Zone.Identifier:$DATA	system.exe
File created	C:\Users\Admin\AppData\Roaming\system.exe:Zone.Identifier:$DATA	945d30684e328c1dc007ed0f71499788_JaffaCakes118.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

Processes:

system.exeRegAsm.exeschtasks.exeschtasks.exe945d30684e328c1dc007ed0f71499788_JaffaCakes118.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	system.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.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	945d30684e328c1dc007ed0f71499788_JaffaCakes118.exe

NTFS ADS 4 IoCs

Processes:

945d30684e328c1dc007ed0f71499788_JaffaCakes118.exesystem.exe

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\system.exe:Zone.Identifier:$DATA	945d30684e328c1dc007ed0f71499788_JaffaCakes118.exe
File created	C:\Users\Admin\AppData\Roaming\ZdchLQZIJQJCBedD.exe\:Zone.Identifier:$DATA	system.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\system.exe:Zone.Identifier:$DATA	system.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\ZdchLQZIJQJCBedD.exe:Zone.Identifier:$DATA	system.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

Processes:

schtasks.exeschtasks.exe

pid	Process
3104	schtasks.exe
1328	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

system.exeRegAsm.exe

pid	Process
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
3544	RegAsm.exe
3544	RegAsm.exe
3544	RegAsm.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe
4072	system.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

Processes:

system.exeRegAsm.exe

pid	Process
4072	system.exe
3544	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegAsm.exe

description	pid	Process
Token: SeDebugPrivilege	3544	RegAsm.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

945d30684e328c1dc007ed0f71499788_JaffaCakes118.exesystem.exeRegAsm.exe

description	pid	Process	procid_target
PID 4316 wrote to memory of 4072	4316	945d30684e328c1dc007ed0f71499788_JaffaCakes118.exe	83
PID 4316 wrote to memory of 4072	4316	945d30684e328c1dc007ed0f71499788_JaffaCakes118.exe	83
PID 4316 wrote to memory of 4072	4316	945d30684e328c1dc007ed0f71499788_JaffaCakes118.exe	83
PID 4072 wrote to memory of 3544	4072	system.exe	84
PID 4072 wrote to memory of 3544	4072	system.exe	84
PID 4072 wrote to memory of 3544	4072	system.exe	84
PID 4072 wrote to memory of 3544	4072	system.exe	84
PID 4072 wrote to memory of 3544	4072	system.exe	84
PID 4072 wrote to memory of 3544	4072	system.exe	84
PID 4072 wrote to memory of 3544	4072	system.exe	84
PID 4072 wrote to memory of 3544	4072	system.exe	84
PID 3544 wrote to memory of 3104	3544	RegAsm.exe	85
PID 3544 wrote to memory of 3104	3544	RegAsm.exe	85
PID 3544 wrote to memory of 3104	3544	RegAsm.exe	85
PID 3544 wrote to memory of 1328	3544	RegAsm.exe	87
PID 3544 wrote to memory of 1328	3544	RegAsm.exe	87
PID 3544 wrote to memory of 1328	3544	RegAsm.exe	87

C:\Users\Admin\AppData\Local\Temp\945d30684e328c1dc007ed0f71499788_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\945d30684e328c1dc007ed0f71499788_JaffaCakes118.exe"
1⤵
- Subvert Trust Controls: Mark-of-the-Web Bypass
- System Location Discovery: System Language Discovery
- NTFS ADS
- Suspicious use of WriteProcessMemory
PID:4316
- C:\Users\Admin\AppData\Roaming\system.exe
  C:\Users\Admin\AppData\Roaming\system.exe
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Subvert Trust Controls: Mark-of-the-Web Bypass
  - System Location Discovery: System Language Discovery
  - NTFS ADS
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of WriteProcessMemory
  PID:4072
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
    3⤵
    - 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:3544
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "PCI Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8482.tmp"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:3104
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "PCI Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp850F.tmp"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:1328

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

Subvert Trust Controls

T1553

SIP and Trust Provider Hijacking

T1553.003

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\aut7FAF.tmp

Filesize
203KB

MD5
0b6b2bb0cc21924059ee2f4d3b484af1

SHA1
e83a8bbed1a28425d56be1f9c3e87965e20d9fa8

SHA256
ec4bb6b826974d391dcb82a3992352b110f6f752ebba38b727671261c0ca2912

SHA512
401970597faf9d84f12637c7ff5e16e248127b44b1186ab4acc064b77a01fb06082712f13243610a0e32470cbc39069459beee7d48a03e6d332a3559f9bad2cf

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp8482.tmp

Filesize
1KB

MD5
c6f0625bf4c1cdfb699980c9243d3b22

SHA1
43de1fe580576935516327f17b5da0c656c72851

SHA256
8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576

SHA512
9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp850F.tmp

Filesize
1KB

MD5
09063e7cc0d66a9aed53f2e2d2409103

SHA1
96f8fa15b5a3b2646f6691770a158c69ea7405a4

SHA256
369b159ef60c988373a3c85e0b10b5ff2178504465f11965ab0d66f14124f9a1

SHA512
c460a3cab70270c5cefe0464df6ddb9d50bb58ac9c49c7e62c9a55cc6bc30b6411cbc28ae418dd91b1ba1190f8394ccd937452ae70d7062740207d2ffc68e2ec

Download Submit
C:\Users\Admin\AppData\Roaming\system.exe

Filesize
858KB

MD5
945d30684e328c1dc007ed0f71499788

SHA1
ac5e19f1e2c964ff70075c66506fee1ac19e79af

SHA256
30c3ac8b70c175f99f714f34feb8fae9192260335f2372831fceaed3f4a9e861

SHA512
b0835bb184a227dc12653e142140c777c277e18e5f9cfbe40653bc596e8d50e5a251382533aed75cd0c0f451b7aac254442f2e970306275f9cf62eb97337be50

Download Submit
memory/3544-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3544-23-0x00000000735E2000-0x00000000735E3000-memory.dmp

Filesize
4KB

Download
memory/3544-24-0x00000000735E0000-0x0000000073B91000-memory.dmp

Filesize
5.7MB

Download
memory/3544-25-0x00000000735E0000-0x0000000073B91000-memory.dmp

Filesize
5.7MB

Download
memory/3544-37-0x00000000735E2000-0x00000000735E3000-memory.dmp

Filesize
4KB

Download
memory/3544-38-0x00000000735E0000-0x0000000073B91000-memory.dmp

Filesize
5.7MB

Download
memory/3544-39-0x00000000735E0000-0x0000000073B91000-memory.dmp

Filesize
5.7MB

Download