nanocore | a4763320a093f7e11e4ecdcc45a813938a7fc27213f4769c3d70bed84af5d718

General

Target

a4763320a093f7e11e4ecdcc45a813938a7fc27213f4769c3d70bed84af5d718.exe
Size

254KB
MD5

b1d091fcc52ea1414e9ff79ee5c7801a
SHA1

6dab4c38bf631e201d4134824a034570b2ae88bc
SHA256

a4763320a093f7e11e4ecdcc45a813938a7fc27213f4769c3d70bed84af5d718
SHA512

9d1f31f8c3f821e3376d95925216537bec0888312c9f711d5ed9d47efee9a82a96bb4561458b1db151e91610bf0ae525ad53794038e3ea5a0768f57e0b48613c
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ1E:EeGUA5YZazpXUmZhmE

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

2640 a1punf5t2of.exe
2708 a1punf5t2of.exe
Loads dropped DLL 2 IoCs

Processes:

a4763320a093f7e11e4ecdcc45a813938a7fc27213f4769c3d70bed84af5d718.exea1punf5t2of.exe

pid process

1976 a4763320a093f7e11e4ecdcc45a813938a7fc27213f4769c3d70bed84af5d718.exe
2640 a1punf5t2of.exe

pid	process
2640	a1punf5t2of.exe
2708	a1punf5t2of.exe

pid	process
1976	a4763320a093f7e11e4ecdcc45a813938a7fc27213f4769c3d70bed84af5d718.exe
2640	a1punf5t2of.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

a4763320a093f7e11e4ecdcc45a813938a7fc27213f4769c3d70bed84af5d718.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	a4763320a093f7e11e4ecdcc45a813938a7fc27213f4769c3d70bed84af5d718.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 2640 set thread context of 2708 2640 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 2640 set thread context of 2708	2640	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:

a4763320a093f7e11e4ecdcc45a813938a7fc27213f4769c3d70bed84af5d718.exea1punf5t2of.exea1punf5t2of.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a4763320a093f7e11e4ecdcc45a813938a7fc27213f4769c3d70bed84af5d718.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

a1punf5t2of.exe

pid process

2708 a1punf5t2of.exe
2708 a1punf5t2of.exe
2708 a1punf5t2of.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

a1punf5t2of.exe

pid process

2708 a1punf5t2of.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

a1punf5t2of.exe

description pid process

Token: SeDebugPrivilege 2708 a1punf5t2of.exe

pid	process
2708	a1punf5t2of.exe
2708	a1punf5t2of.exe
2708	a1punf5t2of.exe

pid	process
2708	a1punf5t2of.exe

description	pid	process
Token: SeDebugPrivilege	2708	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

a4763320a093f7e11e4ecdcc45a813938a7fc27213f4769c3d70bed84af5d718.exea1punf5t2of.exe

description	pid	process	target process
PID 1976 wrote to memory of 2640	1976	a4763320a093f7e11e4ecdcc45a813938a7fc27213f4769c3d70bed84af5d718.exe	a1punf5t2of.exe
PID 1976 wrote to memory of 2640	1976	a4763320a093f7e11e4ecdcc45a813938a7fc27213f4769c3d70bed84af5d718.exe	a1punf5t2of.exe
PID 1976 wrote to memory of 2640	1976	a4763320a093f7e11e4ecdcc45a813938a7fc27213f4769c3d70bed84af5d718.exe	a1punf5t2of.exe
PID 1976 wrote to memory of 2640	1976	a4763320a093f7e11e4ecdcc45a813938a7fc27213f4769c3d70bed84af5d718.exe	a1punf5t2of.exe
PID 1976 wrote to memory of 2640	1976	a4763320a093f7e11e4ecdcc45a813938a7fc27213f4769c3d70bed84af5d718.exe	a1punf5t2of.exe
PID 1976 wrote to memory of 2640	1976	a4763320a093f7e11e4ecdcc45a813938a7fc27213f4769c3d70bed84af5d718.exe	a1punf5t2of.exe
PID 1976 wrote to memory of 2640	1976	a4763320a093f7e11e4ecdcc45a813938a7fc27213f4769c3d70bed84af5d718.exe	a1punf5t2of.exe
PID 2640 wrote to memory of 2708	2640	a1punf5t2of.exe	a1punf5t2of.exe
PID 2640 wrote to memory of 2708	2640	a1punf5t2of.exe	a1punf5t2of.exe
PID 2640 wrote to memory of 2708	2640	a1punf5t2of.exe	a1punf5t2of.exe
PID 2640 wrote to memory of 2708	2640	a1punf5t2of.exe	a1punf5t2of.exe
PID 2640 wrote to memory of 2708	2640	a1punf5t2of.exe	a1punf5t2of.exe
PID 2640 wrote to memory of 2708	2640	a1punf5t2of.exe	a1punf5t2of.exe
PID 2640 wrote to memory of 2708	2640	a1punf5t2of.exe	a1punf5t2of.exe
PID 2640 wrote to memory of 2708	2640	a1punf5t2of.exe	a1punf5t2of.exe
PID 2640 wrote to memory of 2708	2640	a1punf5t2of.exe	a1punf5t2of.exe
PID 2640 wrote to memory of 2708	2640	a1punf5t2of.exe	a1punf5t2of.exe
PID 2640 wrote to memory of 2708	2640	a1punf5t2of.exe	a1punf5t2of.exe
PID 2640 wrote to memory of 2708	2640	a1punf5t2of.exe	a1punf5t2of.exe

C:\Users\Admin\AppData\Local\Temp\a4763320a093f7e11e4ecdcc45a813938a7fc27213f4769c3d70bed84af5d718.exe
"C:\Users\Admin\AppData\Local\Temp\a4763320a093f7e11e4ecdcc45a813938a7fc27213f4769c3d70bed84af5d718.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1976
- 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:2640
- - 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:2708

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

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Downloads

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

Filesize
254KB

MD5
2aebe220eceb4f24c7260df3221a6a16

SHA1
491394f93462f0cb65088b9687477d43dc6a8423

SHA256
1d27da11e79f7d4bc58ad8e426c11756f7ff7f57444f64b061d26e4e13a232a5

SHA512
6da9d19023ab494af68468b4575f04f8a287ca521a2c72021ff0d714e6ff2f71da66766f7599217c74d5a6ba88891efac3792890d5913f44c4f8a5c43eacc8b2

Download Submit
memory/1976-0-0x0000000074611000-0x0000000074612000-memory.dmp

Filesize
4KB

Download
memory/1976-1-0x0000000074610000-0x0000000074BBB000-memory.dmp

Filesize
5.7MB

Download
memory/1976-2-0x0000000074610000-0x0000000074BBB000-memory.dmp

Filesize
5.7MB

Download
memory/1976-3-0x0000000074610000-0x0000000074BBB000-memory.dmp

Filesize
5.7MB

Download
memory/1976-4-0x0000000074610000-0x0000000074BBB000-memory.dmp

Filesize
5.7MB

Download
memory/1976-5-0x0000000074610000-0x0000000074BBB000-memory.dmp

Filesize
5.7MB

Download
memory/1976-6-0x0000000074610000-0x0000000074BBB000-memory.dmp

Filesize
5.7MB

Download
memory/1976-16-0x0000000074610000-0x0000000074BBB000-memory.dmp

Filesize
5.7MB

Download
memory/2640-17-0x0000000074610000-0x0000000074BBB000-memory.dmp

Filesize
5.7MB

Download
memory/2640-15-0x0000000074610000-0x0000000074BBB000-memory.dmp

Filesize
5.7MB

Download
memory/2640-18-0x0000000074610000-0x0000000074BBB000-memory.dmp

Filesize
5.7MB

Download
memory/2640-19-0x0000000074610000-0x0000000074BBB000-memory.dmp

Filesize
5.7MB

Download
memory/2640-20-0x0000000074610000-0x0000000074BBB000-memory.dmp

Filesize
5.7MB

Download
memory/2640-40-0x0000000074610000-0x0000000074BBB000-memory.dmp

Filesize
5.7MB

Download
memory/2708-32-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2708-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2708-37-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2708-38-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2708-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2708-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2708-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2708-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads