nanocore | a0b9c711a659f3f7ea8f4d0a7599247272e83613310969c465e930ddbe9114d9

General

Target

a0b9c711a659f3f7ea8f4d0a7599247272e83613310969c465e930ddbe9114d9.exe
Size

282KB
MD5

1da9a177d2587aadd15b9ea8ff5ec254
SHA1

0abe8ddef7a934684e2a99596bdd874268f5dc93
SHA256

a0b9c711a659f3f7ea8f4d0a7599247272e83613310969c465e930ddbe9114d9
SHA512

3c5f011785f9aac11b8254691d24ec9b99804f6f1672361d105bea5282f3bde7f018da1886cb2306073cb38e0a2a56a2d787e5c8664e4081873c5648cf7513fd
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkfB:boSeGUA5YZazpXUmZhZ6Sg

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

Executes dropped EXE 2 IoCs

Processes:

a1punf5t2of.exea1punf5t2of.exe

pid	Process
2740	a1punf5t2of.exe
3036	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

Processes:

a0b9c711a659f3f7ea8f4d0a7599247272e83613310969c465e930ddbe9114d9.exea1punf5t2of.exe

pid	Process
2652	a0b9c711a659f3f7ea8f4d0a7599247272e83613310969c465e930ddbe9114d9.exe
2740	a1punf5t2of.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

a0b9c711a659f3f7ea8f4d0a7599247272e83613310969c465e930ddbe9114d9.exe

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"	a0b9c711a659f3f7ea8f4d0a7599247272e83613310969c465e930ddbe9114d9.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	procid_target
PID 2740 set thread context of 3036	2740	a1punf5t2of.exe	31

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

Processes:

a1punf5t2of.exea0b9c711a659f3f7ea8f4d0a7599247272e83613310969c465e930ddbe9114d9.exea1punf5t2of.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a0b9c711a659f3f7ea8f4d0a7599247272e83613310969c465e930ddbe9114d9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

a1punf5t2of.exe

pid	Process
3036	a1punf5t2of.exe
3036	a1punf5t2of.exe
3036	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

a1punf5t2of.exe

pid	Process
3036	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

a1punf5t2of.exe

description	pid	Process
Token: SeDebugPrivilege	3036	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

a0b9c711a659f3f7ea8f4d0a7599247272e83613310969c465e930ddbe9114d9.exea1punf5t2of.exe

description	pid	Process	procid_target
PID 2652 wrote to memory of 2740	2652	a0b9c711a659f3f7ea8f4d0a7599247272e83613310969c465e930ddbe9114d9.exe	30
PID 2652 wrote to memory of 2740	2652	a0b9c711a659f3f7ea8f4d0a7599247272e83613310969c465e930ddbe9114d9.exe	30
PID 2652 wrote to memory of 2740	2652	a0b9c711a659f3f7ea8f4d0a7599247272e83613310969c465e930ddbe9114d9.exe	30
PID 2652 wrote to memory of 2740	2652	a0b9c711a659f3f7ea8f4d0a7599247272e83613310969c465e930ddbe9114d9.exe	30
PID 2652 wrote to memory of 2740	2652	a0b9c711a659f3f7ea8f4d0a7599247272e83613310969c465e930ddbe9114d9.exe	30
PID 2652 wrote to memory of 2740	2652	a0b9c711a659f3f7ea8f4d0a7599247272e83613310969c465e930ddbe9114d9.exe	30
PID 2652 wrote to memory of 2740	2652	a0b9c711a659f3f7ea8f4d0a7599247272e83613310969c465e930ddbe9114d9.exe	30
PID 2740 wrote to memory of 3036	2740	a1punf5t2of.exe	31
PID 2740 wrote to memory of 3036	2740	a1punf5t2of.exe	31
PID 2740 wrote to memory of 3036	2740	a1punf5t2of.exe	31
PID 2740 wrote to memory of 3036	2740	a1punf5t2of.exe	31
PID 2740 wrote to memory of 3036	2740	a1punf5t2of.exe	31
PID 2740 wrote to memory of 3036	2740	a1punf5t2of.exe	31
PID 2740 wrote to memory of 3036	2740	a1punf5t2of.exe	31
PID 2740 wrote to memory of 3036	2740	a1punf5t2of.exe	31
PID 2740 wrote to memory of 3036	2740	a1punf5t2of.exe	31
PID 2740 wrote to memory of 3036	2740	a1punf5t2of.exe	31
PID 2740 wrote to memory of 3036	2740	a1punf5t2of.exe	31
PID 2740 wrote to memory of 3036	2740	a1punf5t2of.exe	31

C:\Users\Admin\AppData\Local\Temp\a0b9c711a659f3f7ea8f4d0a7599247272e83613310969c465e930ddbe9114d9.exe
"C:\Users\Admin\AppData\Local\Temp\a0b9c711a659f3f7ea8f4d0a7599247272e83613310969c465e930ddbe9114d9.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2652
- 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:2740
- - 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:3036

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
282KB

MD5
3b90c98177ac93b6a6d5104d9dcbc2b7

SHA1
266c563bf8f21da1a5fb6b71adef867f33ad9c6a

SHA256
2c277e720651e6e0ad5d9501d6c7602418941c149557149a19813534ad080f5b

SHA512
ab0da223ee0269ee84075ae65fa4e581a26cd652a571bcd8b345e73cebae5c8c49948e5a4714cc35892fb7fcd0c310173ca31f4fe760dd24c26cd7fed5841131

Download Submit
memory/2652-14-0x0000000074280000-0x000000007482B000-memory.dmp

Filesize
5.7MB

Download
memory/2652-1-0x0000000074280000-0x000000007482B000-memory.dmp

Filesize
5.7MB

Download
memory/2652-2-0x0000000074280000-0x000000007482B000-memory.dmp

Filesize
5.7MB

Download
memory/2652-3-0x0000000074280000-0x000000007482B000-memory.dmp

Filesize
5.7MB

Download
memory/2652-4-0x0000000074280000-0x000000007482B000-memory.dmp

Filesize
5.7MB

Download
memory/2652-5-0x0000000074280000-0x000000007482B000-memory.dmp

Filesize
5.7MB

Download
memory/2652-0-0x0000000074281000-0x0000000074282000-memory.dmp

Filesize
4KB

Download
memory/2740-17-0x0000000074280000-0x000000007482B000-memory.dmp

Filesize
5.7MB

Download
memory/2740-16-0x0000000074280000-0x000000007482B000-memory.dmp

Filesize
5.7MB

Download
memory/2740-15-0x0000000074280000-0x000000007482B000-memory.dmp

Filesize
5.7MB

Download
memory/2740-18-0x0000000074280000-0x000000007482B000-memory.dmp

Filesize
5.7MB

Download
memory/2740-19-0x0000000074280000-0x000000007482B000-memory.dmp

Filesize
5.7MB

Download
memory/2740-36-0x0000000074280000-0x000000007482B000-memory.dmp

Filesize
5.7MB

Download
memory/3036-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3036-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3036-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3036-34-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3036-33-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3036-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3036-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3036-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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