nanocore | ebc12b06a54ea7f0d569791266722dd64fa62f8d6031bbc3fbd946e6322d5fad

General

Target

d809cc90c33a1dd0d131ba18cc955f19_JaffaCakes118.exe
Size

1.8MB
MD5

d809cc90c33a1dd0d131ba18cc955f19
SHA1

d545913290a1fb78d09368c9b3988c9c98439684
SHA256

ebc12b06a54ea7f0d569791266722dd64fa62f8d6031bbc3fbd946e6322d5fad
SHA512

04fea749060728311322a13c10f639c1bb8a6a28beff185bc3fc49707dbbeb05c193849dab69aa5d9d0cb5d59e7a02b08f7e7ee1f7ade799a4c1dffd0c4b7976
SSDEEP

24576:Jtb20pkaCqT5TBWgNQ7aTdk5ky34sIyekYHAq3C/IR01MCqcCmrpcEC7E7x9TWc+:aVg5tQ7aTdoJJuJ3CzqcCmrpFo5

Score

10^/10

nanocore discovery evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

sakah.ddns.net:1989

Mutex

e1775735-08ea-46b7-9b32-7b44d3b5fa3e

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2019-12-16T17:08:30.390525636Z
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
1989
default_group
Saka
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
e1775735-08ea-46b7-9b32-7b44d3b5fa3e
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
sakah.ddns.net
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
true
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

Drops startup file 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\browcli.url	d809cc90c33a1dd0d131ba18cc955f19_JaffaCakes118.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	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5024 set thread context of 4712	5024	d809cc90c33a1dd0d131ba18cc955f19_JaffaCakes118.exe	88

System Location Discovery: System Language Discovery 1 TTPs 3 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	d809cc90c33a1dd0d131ba18cc955f19_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2460	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4712	RegAsm.exe
4712	RegAsm.exe
4712	RegAsm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4712	RegAsm.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
5024	d809cc90c33a1dd0d131ba18cc955f19_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4712	RegAsm.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
5024	d809cc90c33a1dd0d131ba18cc955f19_JaffaCakes118.exe
5024	d809cc90c33a1dd0d131ba18cc955f19_JaffaCakes118.exe
5024	d809cc90c33a1dd0d131ba18cc955f19_JaffaCakes118.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
5024	d809cc90c33a1dd0d131ba18cc955f19_JaffaCakes118.exe
5024	d809cc90c33a1dd0d131ba18cc955f19_JaffaCakes118.exe
5024	d809cc90c33a1dd0d131ba18cc955f19_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 5024 wrote to memory of 4712	5024	d809cc90c33a1dd0d131ba18cc955f19_JaffaCakes118.exe	88
PID 5024 wrote to memory of 4712	5024	d809cc90c33a1dd0d131ba18cc955f19_JaffaCakes118.exe	88
PID 5024 wrote to memory of 4712	5024	d809cc90c33a1dd0d131ba18cc955f19_JaffaCakes118.exe	88
PID 5024 wrote to memory of 4712	5024	d809cc90c33a1dd0d131ba18cc955f19_JaffaCakes118.exe	88
PID 4712 wrote to memory of 2460	4712	RegAsm.exe	89
PID 4712 wrote to memory of 2460	4712	RegAsm.exe	89
PID 4712 wrote to memory of 2460	4712	RegAsm.exe	89

C:\Users\Admin\AppData\Local\Temp\d809cc90c33a1dd0d131ba18cc955f19_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d809cc90c33a1dd0d131ba18cc955f19_JaffaCakes118.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:5024
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v2.0.50727\\\\RegAsm.exe"
  2⤵
  - Checks whether UAC is enabled
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4712
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "WPA Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpC505.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2460

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmpC505.tmp

Filesize
1KB

MD5
c6f0625bf4c1cdfb699980c9243d3b22

SHA1
43de1fe580576935516327f17b5da0c656c72851

SHA256
8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576

SHA512
9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969

Download Submit
memory/4712-5-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4712-6-0x0000000074A52000-0x0000000074A53000-memory.dmp

Filesize
4KB

Download
memory/4712-7-0x0000000074A50000-0x0000000075001000-memory.dmp

Filesize
5.7MB

Download
memory/4712-8-0x0000000074A50000-0x0000000075001000-memory.dmp

Filesize
5.7MB

Download
memory/4712-13-0x0000000074A52000-0x0000000074A53000-memory.dmp

Filesize
4KB

Download
memory/4712-14-0x0000000074A50000-0x0000000075001000-memory.dmp

Filesize
5.7MB

Download
memory/4712-15-0x0000000074A50000-0x0000000075001000-memory.dmp

Filesize
5.7MB

Download
memory/5024-3-0x0000000003D20000-0x0000000003D86000-memory.dmp

Filesize
408KB

Download
memory/5024-4-0x0000000003D90000-0x0000000003DF6000-memory.dmp

Filesize
408KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads