nanocore | 310af31e7b8c5caf001ec2de3e56c2c644a73be87e6f6cd006245a9a8319284c

General

Target

c487ee27e268e2c5d0c6cd3d6e5d7582_JaffaCakes118.exe
Size

1.3MB
MD5

c487ee27e268e2c5d0c6cd3d6e5d7582
SHA1

2144615e1346f4ec9e02c4af0d6dcf8df3a0c263
SHA256

310af31e7b8c5caf001ec2de3e56c2c644a73be87e6f6cd006245a9a8319284c
SHA512

c71e291032aa0299a6247b5de340aa48f6e0f5d701150518f175549322c17a25650bebdd1c6817736811ab11ec19aec67e0593d7c2e7acc4705e4f37eee6a7b4
SSDEEP

24576:ju6J33O0c+JY5UZ+XC0kGso6Fabncu8rD8IqQV06pbkWYk:tu0c++OCvkGs9FalczYk

Score

10^/10

nanocore discovery evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

microsoft.btc-crypto-rewards.cash:3020

91.192.100.7:3020

Mutex

8f96fcee-6a12-4372-9c82-ebf284f80be1

Attributes

activate_away_mode
true
backup_connection_host
91.192.100.7
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2018-12-17T05:15:58.097142536Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
3020
default_group
macro doc pop up
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
8f96fcee-6a12-4372-9c82-ebf284f80be1
mutex_timeout
5000
prevent_system_sleep
true
primary_connection_host
microsoft.btc-crypto-rewards.cash
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

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	c487ee27e268e2c5d0c6cd3d6e5d7582_JaffaCakes118.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	CompatTelRunner.exe

Executes dropped EXE 2 IoCs

pid	Process
4628	CompatTelRunner.exe
1212	CompatTelRunner.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

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral2/files/0x00070000000234d6-15.dat	autoit_exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4976 set thread context of 4048	4976	c487ee27e268e2c5d0c6cd3d6e5d7582_JaffaCakes118.exe	100
PID 4628 set thread context of 2904	4628	CompatTelRunner.exe	112

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 7 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	CompatTelRunner.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	CompatTelRunner.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c487ee27e268e2c5d0c6cd3d6e5d7582_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.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
1652	schtasks.exe
2296	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4048	RegAsm.exe
4048	RegAsm.exe
4048	RegAsm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4048	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4048	RegAsm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 4976 wrote to memory of 4048	4976	c487ee27e268e2c5d0c6cd3d6e5d7582_JaffaCakes118.exe	100
PID 4976 wrote to memory of 4048	4976	c487ee27e268e2c5d0c6cd3d6e5d7582_JaffaCakes118.exe	100
PID 4976 wrote to memory of 4048	4976	c487ee27e268e2c5d0c6cd3d6e5d7582_JaffaCakes118.exe	100
PID 4976 wrote to memory of 4048	4976	c487ee27e268e2c5d0c6cd3d6e5d7582_JaffaCakes118.exe	100
PID 4976 wrote to memory of 4048	4976	c487ee27e268e2c5d0c6cd3d6e5d7582_JaffaCakes118.exe	100
PID 4976 wrote to memory of 2296	4976	c487ee27e268e2c5d0c6cd3d6e5d7582_JaffaCakes118.exe	101
PID 4976 wrote to memory of 2296	4976	c487ee27e268e2c5d0c6cd3d6e5d7582_JaffaCakes118.exe	101
PID 4976 wrote to memory of 2296	4976	c487ee27e268e2c5d0c6cd3d6e5d7582_JaffaCakes118.exe	101
PID 4628 wrote to memory of 2904	4628	CompatTelRunner.exe	112
PID 4628 wrote to memory of 2904	4628	CompatTelRunner.exe	112
PID 4628 wrote to memory of 2904	4628	CompatTelRunner.exe	112
PID 4628 wrote to memory of 2904	4628	CompatTelRunner.exe	112
PID 4628 wrote to memory of 2904	4628	CompatTelRunner.exe	112
PID 4628 wrote to memory of 1652	4628	CompatTelRunner.exe	115
PID 4628 wrote to memory of 1652	4628	CompatTelRunner.exe	115
PID 4628 wrote to memory of 1652	4628	CompatTelRunner.exe	115

C:\Users\Admin\AppData\Local\Temp\c487ee27e268e2c5d0c6cd3d6e5d7582_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\c487ee27e268e2c5d0c6cd3d6e5d7582_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4976
- 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
  PID:4048
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\SysWOW64\schtasks.exe" /create /tn msconfig /tr "C:\Users\Admin\auditpolcore\CompatTelRunner.exe" /sc minute /mo 1 /F
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2296

C:\Users\Admin\auditpolcore\CompatTelRunner.exe
C:\Users\Admin\auditpolcore\CompatTelRunner.exe
1⤵
- Checks computer location settings
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4628
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2904
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\SysWOW64\schtasks.exe" /create /tn msconfig /tr "C:\Users\Admin\auditpolcore\CompatTelRunner.exe" /sc minute /mo 1 /F
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1652

C:\Users\Admin\auditpolcore\CompatTelRunner.exe
C:\Users\Admin\auditpolcore\CompatTelRunner.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1212

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

Query Registry

1

T1012

System Information Discovery

3

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\auditpolcore\CompatTelRunner.exe

Filesize
1.3MB

MD5
4ddd6797c458bc9c1c1e58f737841119

SHA1
e742944c740b51cc593ac06df3848799d5e75a23

SHA256
de75ef24a7c2ac03d04d833e187d37e3a0dcefe3373beced859e1780437ea8ef

SHA512
2adabb7a9d26a1f41fb78f4cdfb91142acc7b26763c0d974be3d58ec228d03370346b1526e1a0f82642800284e52a8612ca58ef6019dea9914eb114821b02d75

Download Submit
memory/2904-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4048-2-0x0000000000800000-0x0000000000838000-memory.dmp

Filesize
224KB

Download
memory/4048-6-0x0000000074032000-0x0000000074033000-memory.dmp

Filesize
4KB

Download
memory/4048-7-0x0000000074030000-0x00000000745E1000-memory.dmp

Filesize
5.7MB

Download
memory/4048-8-0x0000000074030000-0x00000000745E1000-memory.dmp

Filesize
5.7MB

Download
memory/4048-10-0x0000000074032000-0x0000000074033000-memory.dmp

Filesize
4KB

Download
memory/4048-11-0x0000000074030000-0x00000000745E1000-memory.dmp

Filesize
5.7MB

Download
memory/4048-12-0x0000000074030000-0x00000000745E1000-memory.dmp

Filesize
5.7MB

Download
memory/4976-0-0x0000000000F00000-0x0000000000F01000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads