nanocore | fec3b50d44a1a15ae93ab429bef45c15e7538a5b12857f183a5fc4fd820d7b5e

General

Target

fec3b50d44a1a15ae93ab429bef45c15e7538a5b12857f183a5fc4fd820d7b5e.exe
Size

255KB
MD5

2dde1f5597487da67e8b2c503998bb07
SHA1

32cf050fafd9ebce574e944d9b0afa27b46aa00d
SHA256

fec3b50d44a1a15ae93ab429bef45c15e7538a5b12857f183a5fc4fd820d7b5e
SHA512

b9818ddfe9dcc87d538c3768985b36eb7bf13ecfa18ed8fdb95ce7d98c27e8615309b74fb479d7ca307552f1249498f5937d93302bbb9e1894c2498631482e7f
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQSu:EeGUA5YZazpXUmZh9u

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

sysupdate24.ddns.net:45400

Mutex

ae82ab7f-db07-49ee-9d2b-76075d76f37f

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
buffer_size
65535
build_time
2020-04-24T17:41:53.492468936Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
45400
default_group
Default
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
ae82ab7f-db07-49ee-9d2b-76075d76f37f
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
sysupdate24.ddns.net
primary_dns_server
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
Executes dropped EXE 2 IoCs

Processes:

a1punf5t2of.exea1punf5t2of.exe

pid process

2408 a1punf5t2of.exe
2264 a1punf5t2of.exe
Loads dropped DLL 2 IoCs

Processes:

fec3b50d44a1a15ae93ab429bef45c15e7538a5b12857f183a5fc4fd820d7b5e.exea1punf5t2of.exe

pid process

840 fec3b50d44a1a15ae93ab429bef45c15e7538a5b12857f183a5fc4fd820d7b5e.exe
2408 a1punf5t2of.exe

pid	process
2408	a1punf5t2of.exe
2264	a1punf5t2of.exe

pid	process
840	fec3b50d44a1a15ae93ab429bef45c15e7538a5b12857f183a5fc4fd820d7b5e.exe
2408	a1punf5t2of.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

fec3b50d44a1a15ae93ab429bef45c15e7538a5b12857f183a5fc4fd820d7b5e.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	fec3b50d44a1a15ae93ab429bef45c15e7538a5b12857f183a5fc4fd820d7b5e.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

a1punf5t2of.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA a1punf5t2of.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

a1punf5t2of.exe

description pid process target process

PID 2408 set thread context of 2264 2408 a1punf5t2of.exe a1punf5t2of.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	a1punf5t2of.exe

description	pid	process	target process
PID 2408 set thread context of 2264	2408	a1punf5t2of.exe	a1punf5t2of.exe

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

Processes:

a1punf5t2of.exea1punf5t2of.exefec3b50d44a1a15ae93ab429bef45c15e7538a5b12857f183a5fc4fd820d7b5e.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fec3b50d44a1a15ae93ab429bef45c15e7538a5b12857f183a5fc4fd820d7b5e.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

a1punf5t2of.exe

pid process

2264 a1punf5t2of.exe
2264 a1punf5t2of.exe
2264 a1punf5t2of.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

a1punf5t2of.exe

pid process

2264 a1punf5t2of.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

a1punf5t2of.exe

description pid process

Token: SeDebugPrivilege 2264 a1punf5t2of.exe

pid	process
2264	a1punf5t2of.exe
2264	a1punf5t2of.exe
2264	a1punf5t2of.exe

pid	process
2264	a1punf5t2of.exe

description	pid	process
Token: SeDebugPrivilege	2264	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

fec3b50d44a1a15ae93ab429bef45c15e7538a5b12857f183a5fc4fd820d7b5e.exea1punf5t2of.exe

description	pid	process	target process
PID 840 wrote to memory of 2408	840	fec3b50d44a1a15ae93ab429bef45c15e7538a5b12857f183a5fc4fd820d7b5e.exe	a1punf5t2of.exe
PID 840 wrote to memory of 2408	840	fec3b50d44a1a15ae93ab429bef45c15e7538a5b12857f183a5fc4fd820d7b5e.exe	a1punf5t2of.exe
PID 840 wrote to memory of 2408	840	fec3b50d44a1a15ae93ab429bef45c15e7538a5b12857f183a5fc4fd820d7b5e.exe	a1punf5t2of.exe
PID 840 wrote to memory of 2408	840	fec3b50d44a1a15ae93ab429bef45c15e7538a5b12857f183a5fc4fd820d7b5e.exe	a1punf5t2of.exe
PID 840 wrote to memory of 2408	840	fec3b50d44a1a15ae93ab429bef45c15e7538a5b12857f183a5fc4fd820d7b5e.exe	a1punf5t2of.exe
PID 840 wrote to memory of 2408	840	fec3b50d44a1a15ae93ab429bef45c15e7538a5b12857f183a5fc4fd820d7b5e.exe	a1punf5t2of.exe
PID 840 wrote to memory of 2408	840	fec3b50d44a1a15ae93ab429bef45c15e7538a5b12857f183a5fc4fd820d7b5e.exe	a1punf5t2of.exe
PID 2408 wrote to memory of 2264	2408	a1punf5t2of.exe	a1punf5t2of.exe
PID 2408 wrote to memory of 2264	2408	a1punf5t2of.exe	a1punf5t2of.exe
PID 2408 wrote to memory of 2264	2408	a1punf5t2of.exe	a1punf5t2of.exe
PID 2408 wrote to memory of 2264	2408	a1punf5t2of.exe	a1punf5t2of.exe
PID 2408 wrote to memory of 2264	2408	a1punf5t2of.exe	a1punf5t2of.exe
PID 2408 wrote to memory of 2264	2408	a1punf5t2of.exe	a1punf5t2of.exe
PID 2408 wrote to memory of 2264	2408	a1punf5t2of.exe	a1punf5t2of.exe
PID 2408 wrote to memory of 2264	2408	a1punf5t2of.exe	a1punf5t2of.exe
PID 2408 wrote to memory of 2264	2408	a1punf5t2of.exe	a1punf5t2of.exe
PID 2408 wrote to memory of 2264	2408	a1punf5t2of.exe	a1punf5t2of.exe
PID 2408 wrote to memory of 2264	2408	a1punf5t2of.exe	a1punf5t2of.exe
PID 2408 wrote to memory of 2264	2408	a1punf5t2of.exe	a1punf5t2of.exe

C:\Users\Admin\AppData\Local\Temp\fec3b50d44a1a15ae93ab429bef45c15e7538a5b12857f183a5fc4fd820d7b5e.exe
"C:\Users\Admin\AppData\Local\Temp\fec3b50d44a1a15ae93ab429bef45c15e7538a5b12857f183a5fc4fd820d7b5e.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:840
- C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
  "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2408
- - C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
    "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
    3⤵
    - Executes dropped EXE
    - Checks whether UAC is enabled
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:2264

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

2

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

\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

Filesize
255KB

MD5
98962e42defd428f56a9f985232f76b2

SHA1
01ce08c1ec6d0477cf348a6e2ba101d127e3a81a

SHA256
ff618dd406ed6f90fef5cccfc1ee7dabd43d5b7b267506e61e800ad8fffe864c

SHA512
1dd4fb7eb8877055e10bd81c736a1777e92d4b823e5cda88a45f5519f47d37266df47d292e56e7aa9d7a663ed7dfaa1b4f0a6be0dd05164bfbf2c788043bfa59

Download Submit
memory/840-0-0x00000000745E1000-0x00000000745E2000-memory.dmp

Filesize
4KB

Download
memory/840-1-0x00000000745E0000-0x0000000074B8B000-memory.dmp

Filesize
5.7MB

Download
memory/840-2-0x00000000745E0000-0x0000000074B8B000-memory.dmp

Filesize
5.7MB

Download
memory/840-3-0x00000000745E0000-0x0000000074B8B000-memory.dmp

Filesize
5.7MB

Download
memory/840-4-0x00000000745E0000-0x0000000074B8B000-memory.dmp

Filesize
5.7MB

Download
memory/840-5-0x00000000745E0000-0x0000000074B8B000-memory.dmp

Filesize
5.7MB

Download
memory/840-6-0x00000000745E0000-0x0000000074B8B000-memory.dmp

Filesize
5.7MB

Download
memory/840-15-0x00000000745E0000-0x0000000074B8B000-memory.dmp

Filesize
5.7MB

Download
memory/2264-32-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2264-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2264-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2264-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2264-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2264-38-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2264-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2264-37-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2408-21-0x00000000745E0000-0x0000000074B8B000-memory.dmp

Filesize
5.7MB

Download
memory/2408-17-0x00000000745E0000-0x0000000074B8B000-memory.dmp

Filesize
5.7MB

Download
memory/2408-18-0x00000000745E0000-0x0000000074B8B000-memory.dmp

Filesize
5.7MB

Download
memory/2408-20-0x00000000745E0000-0x0000000074B8B000-memory.dmp

Filesize
5.7MB

Download
memory/2408-19-0x00000000745E0000-0x0000000074B8B000-memory.dmp

Filesize
5.7MB

Download
memory/2408-16-0x00000000745E0000-0x0000000074B8B000-memory.dmp

Filesize
5.7MB

Download
memory/2408-40-0x00000000745E0000-0x0000000074B8B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads