nanocore | b06b5c0f0bdf12901b497da0851fca83e97eca99a686c7f40e5b340810d23c85

General

Target

dacc26ee18088f39147dee7db09f9061_JaffaCakes118.exe
Size

660KB
MD5

dacc26ee18088f39147dee7db09f9061
SHA1

289c704b3e36864cc9070262875a6323f31b8e74
SHA256

b06b5c0f0bdf12901b497da0851fca83e97eca99a686c7f40e5b340810d23c85
SHA512

fb7e68c193221b2e873a59a8da98b47fc005cdd8481db46816ad16d18825f412b7b5b5ff6208160f62358f8146b37d396d1fff8425065a638286726671b41043
SSDEEP

12288:zq8lT9C6e7d6vNealHrfAq0n9QXYPcOv7:Ll5u74vIwHrfAH953v

Score

10^/10

nanocore agilenet discovery evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

95.141.43.202:1860

127.0.0.1:1860

Mutex

b1203725-69d6-4948-9069-d586970d18c6

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2018-07-06T01:24:16.674338936Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1860
default_group
Smart Doc
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
b1203725-69d6-4948-9069-d586970d18c6
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
95.141.43.202
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
Nanocore family
nanocore

Obfuscated with Agile.Net obfuscator 1 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

resource	yara_rule
behavioral1/memory/1956-2-0x00000000004A0000-0x00000000004D8000-memory.dmp	agile_net

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 1956 set thread context of 568	1956	dacc26ee18088f39147dee7db09f9061_JaffaCakes118.exe	31

System Location Discovery: System Language Discovery 1 TTPs 2 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	dacc26ee18088f39147dee7db09f9061_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
568	RegAsm.exe
568	RegAsm.exe
568	RegAsm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
568	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1956	dacc26ee18088f39147dee7db09f9061_JaffaCakes118.exe
Token: SeDebugPrivilege	568	RegAsm.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1956 wrote to memory of 568	1956	dacc26ee18088f39147dee7db09f9061_JaffaCakes118.exe	31
PID 1956 wrote to memory of 568	1956	dacc26ee18088f39147dee7db09f9061_JaffaCakes118.exe	31
PID 1956 wrote to memory of 568	1956	dacc26ee18088f39147dee7db09f9061_JaffaCakes118.exe	31
PID 1956 wrote to memory of 568	1956	dacc26ee18088f39147dee7db09f9061_JaffaCakes118.exe	31
PID 1956 wrote to memory of 568	1956	dacc26ee18088f39147dee7db09f9061_JaffaCakes118.exe	31
PID 1956 wrote to memory of 568	1956	dacc26ee18088f39147dee7db09f9061_JaffaCakes118.exe	31
PID 1956 wrote to memory of 568	1956	dacc26ee18088f39147dee7db09f9061_JaffaCakes118.exe	31
PID 1956 wrote to memory of 568	1956	dacc26ee18088f39147dee7db09f9061_JaffaCakes118.exe	31
PID 1956 wrote to memory of 568	1956	dacc26ee18088f39147dee7db09f9061_JaffaCakes118.exe	31
PID 1956 wrote to memory of 568	1956	dacc26ee18088f39147dee7db09f9061_JaffaCakes118.exe	31
PID 1956 wrote to memory of 568	1956	dacc26ee18088f39147dee7db09f9061_JaffaCakes118.exe	31
PID 1956 wrote to memory of 568	1956	dacc26ee18088f39147dee7db09f9061_JaffaCakes118.exe	31

C:\Users\Admin\AppData\Local\Temp\dacc26ee18088f39147dee7db09f9061_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\dacc26ee18088f39147dee7db09f9061_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1956
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\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:568

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

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

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Downloads

memory/568-8-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/568-17-0x00000000005F0000-0x00000000005FA000-memory.dmp

Filesize
40KB

Download
memory/568-16-0x00000000005D0000-0x00000000005EE000-memory.dmp

Filesize
120KB

Download
memory/568-15-0x00000000004C0000-0x00000000004CA000-memory.dmp

Filesize
40KB

Download
memory/568-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/568-10-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1956-3-0x0000000000260000-0x0000000000266000-memory.dmp

Filesize
24KB

Download
memory/1956-7-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/1956-6-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/1956-5-0x000000007463E000-0x000000007463F000-memory.dmp

Filesize
4KB

Download
memory/1956-4-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/1956-13-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/1956-0-0x000000007463E000-0x000000007463F000-memory.dmp

Filesize
4KB

Download
memory/1956-2-0x00000000004A0000-0x00000000004D8000-memory.dmp

Filesize
224KB

Download
memory/1956-1-0x0000000001290000-0x000000000133C000-memory.dmp

Filesize
688KB

Download

Analysis

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