nanocore | d298091720ef629a5875e8401bab0d52b69bda21405f33c6b2fc541d7a76ea5a

General

Target

d298091720ef629a5875e8401bab0d52b69bda21405f33c6b2fc541d7a76ea5aN.exe
Size

255KB
MD5

b752dabd40b9c00fe078081203724b90
SHA1

6a4e8bbc68cf11783cd03c00be469cd39d97a10a
SHA256

d298091720ef629a5875e8401bab0d52b69bda21405f33c6b2fc541d7a76ea5a
SHA512

2854ac169f620d1cd880b636371139e746ac8c8f210f4dd9d307590f878bed70bf43ed7f11eb43fb4a4ef5433a1c93913bf805940555938a2f5fa4cdf8b04aa6
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQSD:EeGUA5YZazpXUmZhdD

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

pid	Process
2872	a1punf5t2of.exe
2844	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
1388	d298091720ef629a5875e8401bab0d52b69bda21405f33c6b2fc541d7a76ea5aN.exe
2872	a1punf5t2of.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	d298091720ef629a5875e8401bab0d52b69bda21405f33c6b2fc541d7a76ea5aN.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	a1punf5t2of.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2872 set thread context of 2844	2872	a1punf5t2of.exe	32

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 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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d298091720ef629a5875e8401bab0d52b69bda21405f33c6b2fc541d7a76ea5aN.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

pid	Process
2844	a1punf5t2of.exe
2844	a1punf5t2of.exe
2844	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2844	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2844	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1388 wrote to memory of 2872	1388	d298091720ef629a5875e8401bab0d52b69bda21405f33c6b2fc541d7a76ea5aN.exe	31
PID 1388 wrote to memory of 2872	1388	d298091720ef629a5875e8401bab0d52b69bda21405f33c6b2fc541d7a76ea5aN.exe	31
PID 1388 wrote to memory of 2872	1388	d298091720ef629a5875e8401bab0d52b69bda21405f33c6b2fc541d7a76ea5aN.exe	31
PID 1388 wrote to memory of 2872	1388	d298091720ef629a5875e8401bab0d52b69bda21405f33c6b2fc541d7a76ea5aN.exe	31
PID 1388 wrote to memory of 2872	1388	d298091720ef629a5875e8401bab0d52b69bda21405f33c6b2fc541d7a76ea5aN.exe	31
PID 1388 wrote to memory of 2872	1388	d298091720ef629a5875e8401bab0d52b69bda21405f33c6b2fc541d7a76ea5aN.exe	31
PID 1388 wrote to memory of 2872	1388	d298091720ef629a5875e8401bab0d52b69bda21405f33c6b2fc541d7a76ea5aN.exe	31
PID 2872 wrote to memory of 2844	2872	a1punf5t2of.exe	32
PID 2872 wrote to memory of 2844	2872	a1punf5t2of.exe	32
PID 2872 wrote to memory of 2844	2872	a1punf5t2of.exe	32
PID 2872 wrote to memory of 2844	2872	a1punf5t2of.exe	32
PID 2872 wrote to memory of 2844	2872	a1punf5t2of.exe	32
PID 2872 wrote to memory of 2844	2872	a1punf5t2of.exe	32
PID 2872 wrote to memory of 2844	2872	a1punf5t2of.exe	32
PID 2872 wrote to memory of 2844	2872	a1punf5t2of.exe	32
PID 2872 wrote to memory of 2844	2872	a1punf5t2of.exe	32
PID 2872 wrote to memory of 2844	2872	a1punf5t2of.exe	32
PID 2872 wrote to memory of 2844	2872	a1punf5t2of.exe	32
PID 2872 wrote to memory of 2844	2872	a1punf5t2of.exe	32

C:\Users\Admin\AppData\Local\Temp\d298091720ef629a5875e8401bab0d52b69bda21405f33c6b2fc541d7a76ea5aN.exe
"C:\Users\Admin\AppData\Local\Temp\d298091720ef629a5875e8401bab0d52b69bda21405f33c6b2fc541d7a76ea5aN.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1388
- 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:2872
- - 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:2844

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

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

Filesize
255KB

MD5
fa6825cff112037ec4eaf0033b7daf1e

SHA1
889c3a784edf3a935f3989b48a69841ba0b2299d

SHA256
494da0186440555743fa8660ae7aa8a91a09ab72fa679eb3c23ceee36adcad4f

SHA512
a783ae060ec5a7d23b0792e60ffcb2c8f2588fe2efa8ff19aacd78dd22e35479c8e71f06d88809ba63e8b5694924a7a990e418f8854145b3fc566c3cae1de09c

Download Submit
memory/1388-0-0x00000000748D1000-0x00000000748D2000-memory.dmp

Filesize
4KB

Download
memory/1388-1-0x00000000748D0000-0x0000000074E7B000-memory.dmp

Filesize
5.7MB

Download
memory/1388-2-0x00000000748D0000-0x0000000074E7B000-memory.dmp

Filesize
5.7MB

Download
memory/1388-3-0x00000000748D0000-0x0000000074E7B000-memory.dmp

Filesize
5.7MB

Download
memory/1388-4-0x00000000748D0000-0x0000000074E7B000-memory.dmp

Filesize
5.7MB

Download
memory/1388-5-0x00000000748D0000-0x0000000074E7B000-memory.dmp

Filesize
5.7MB

Download
memory/1388-6-0x00000000748D0000-0x0000000074E7B000-memory.dmp

Filesize
5.7MB

Download
memory/1388-14-0x00000000748D0000-0x0000000074E7B000-memory.dmp

Filesize
5.7MB

Download
memory/2844-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2844-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2844-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2844-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2844-33-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2844-34-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2844-39-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2844-41-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2872-21-0x00000000748D0000-0x0000000074E7B000-memory.dmp

Filesize
5.7MB

Download
memory/2872-16-0x00000000748D0000-0x0000000074E7B000-memory.dmp

Filesize
5.7MB

Download
memory/2872-23-0x00000000748D0000-0x0000000074E7B000-memory.dmp

Filesize
5.7MB

Download
memory/2872-22-0x00000000748D0000-0x0000000074E7B000-memory.dmp

Filesize
5.7MB

Download
memory/2872-18-0x00000000748D0000-0x0000000074E7B000-memory.dmp

Filesize
5.7MB

Download
memory/2872-20-0x00000000748D0000-0x0000000074E7B000-memory.dmp

Filesize
5.7MB

Download
memory/2872-19-0x00000000748D0000-0x0000000074E7B000-memory.dmp

Filesize
5.7MB

Download
memory/2872-17-0x00000000748D0000-0x0000000074E7B000-memory.dmp

Filesize
5.7MB

Download
memory/2872-43-0x00000000748D0000-0x0000000074E7B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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