nanocore | 71745cf2ef502b43d51ad898f28e2d86de33ba43b85c72e7995610ad9f8a17eb

General

Target

7e44702944cb2f8b43ce2b2d9fbcfa1a_JaffaCakes118.exe
Size

1.3MB
MD5

7e44702944cb2f8b43ce2b2d9fbcfa1a
SHA1

0008251c21af8160a07587c2bc777ee2d1b69349
SHA256

71745cf2ef502b43d51ad898f28e2d86de33ba43b85c72e7995610ad9f8a17eb
SHA512

dd35ac4334b0e22e3d7e78b2dec4dc36ee12e6699743d0b93c516f9bc8c4baa661c4401d72ae8d0bb9745c05103ea0532c5013ae4f376ec53fe69a5df122c495
SSDEEP

24576:4AHnh+eWsN3skA4RV1Hom2KXFmIa75HLAsJxkMlRGN4rVB9u0AoO5:/h+ZkldoPK1Xaz7vq4rVBi

Score

10^/10

nanocore evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

41.231.120.137:4050

Mutex

8962252f-b9b8-4055-af3a-9f194317caa0

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2019-03-13T15:07:48.849996136Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
4050
default_group
back
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
8962252f-b9b8-4055-af3a-9f194317caa0
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
41.231.120.137
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 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
Suspicious use of SetThreadContext 1 IoCs

Processes:

7e44702944cb2f8b43ce2b2d9fbcfa1a_JaffaCakes118.exe

description pid process target process

PID 2124 set thread context of 1836 2124 7e44702944cb2f8b43ce2b2d9fbcfa1a_JaffaCakes118.exe RegAsm.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

RegAsm.exe

pid process

1836 RegAsm.exe
1836 RegAsm.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegAsm.exe

pid process

1836 RegAsm.exe
Suspicious behavior: MapViewOfSection 1 IoCs

Processes:

7e44702944cb2f8b43ce2b2d9fbcfa1a_JaffaCakes118.exe

pid process

2124 7e44702944cb2f8b43ce2b2d9fbcfa1a_JaffaCakes118.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 1836 RegAsm.exe

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

description	pid	process	target process
PID 2124 set thread context of 1836	2124	7e44702944cb2f8b43ce2b2d9fbcfa1a_JaffaCakes118.exe	RegAsm.exe

pid	process
1836	RegAsm.exe
1836	RegAsm.exe

pid	process
1836	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	1836	RegAsm.exe

Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

7e44702944cb2f8b43ce2b2d9fbcfa1a_JaffaCakes118.exe

pid	process
2124	7e44702944cb2f8b43ce2b2d9fbcfa1a_JaffaCakes118.exe
2124	7e44702944cb2f8b43ce2b2d9fbcfa1a_JaffaCakes118.exe
2124	7e44702944cb2f8b43ce2b2d9fbcfa1a_JaffaCakes118.exe

Suspicious use of SendNotifyMessage 3 IoCs

Processes:

7e44702944cb2f8b43ce2b2d9fbcfa1a_JaffaCakes118.exe

pid	process
2124	7e44702944cb2f8b43ce2b2d9fbcfa1a_JaffaCakes118.exe
2124	7e44702944cb2f8b43ce2b2d9fbcfa1a_JaffaCakes118.exe
2124	7e44702944cb2f8b43ce2b2d9fbcfa1a_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

7e44702944cb2f8b43ce2b2d9fbcfa1a_JaffaCakes118.exe

description	pid	process	target process
PID 2124 wrote to memory of 1836	2124	7e44702944cb2f8b43ce2b2d9fbcfa1a_JaffaCakes118.exe	RegAsm.exe
PID 2124 wrote to memory of 1836	2124	7e44702944cb2f8b43ce2b2d9fbcfa1a_JaffaCakes118.exe	RegAsm.exe
PID 2124 wrote to memory of 1836	2124	7e44702944cb2f8b43ce2b2d9fbcfa1a_JaffaCakes118.exe	RegAsm.exe
PID 2124 wrote to memory of 1836	2124	7e44702944cb2f8b43ce2b2d9fbcfa1a_JaffaCakes118.exe	RegAsm.exe
PID 2124 wrote to memory of 1836	2124	7e44702944cb2f8b43ce2b2d9fbcfa1a_JaffaCakes118.exe	RegAsm.exe
PID 2124 wrote to memory of 1836	2124	7e44702944cb2f8b43ce2b2d9fbcfa1a_JaffaCakes118.exe	RegAsm.exe
PID 2124 wrote to memory of 1836	2124	7e44702944cb2f8b43ce2b2d9fbcfa1a_JaffaCakes118.exe	RegAsm.exe
PID 2124 wrote to memory of 1836	2124	7e44702944cb2f8b43ce2b2d9fbcfa1a_JaffaCakes118.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\7e44702944cb2f8b43ce2b2d9fbcfa1a_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\7e44702944cb2f8b43ce2b2d9fbcfa1a_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2124

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
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:1836

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1836-2-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1836-6-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1836-4-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1836-8-0x0000000073FC2000-0x0000000073FC4000-memory.dmp

Filesize
8KB

Download
memory/1836-10-0x0000000073FC2000-0x0000000073FC4000-memory.dmp

Filesize
8KB

Download
memory/2124-1-0x00000000000B0000-0x00000000000B3000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads