nanocore | 5d5efb8b3e0d0212daab126301baa08836121677cea19be16f2eaf0be48636bb

General

Target

5d5efb8b3e0d0212daab126301baa08836121677cea19be16f2eaf0be48636bbN.exe
Size

255KB
MD5

0dc657fa7ab7c78021acf37116d49b90
SHA1

5edb67feea3aa27cd73175fa20d695ea3b15d2d3
SHA256

5d5efb8b3e0d0212daab126301baa08836121677cea19be16f2eaf0be48636bb
SHA512

0a04711e5d17d274deca03cf0515b608ab157cc9d5f8816becdacb6b50d36ed1790f13a9300d55d7b7bd26ad92d6c17afbff3a1cefefed96690d420a265a8f8c
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQSZ:EeGUA5YZazpXUmZhdZ

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
2840	a1punf5t2of.exe
2640	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
2808	5d5efb8b3e0d0212daab126301baa08836121677cea19be16f2eaf0be48636bbN.exe
2840	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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	5d5efb8b3e0d0212daab126301baa08836121677cea19be16f2eaf0be48636bbN.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 2840 set thread context of 2640	2840	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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5d5efb8b3e0d0212daab126301baa08836121677cea19be16f2eaf0be48636bbN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2640	a1punf5t2of.exe
2640	a1punf5t2of.exe
2640	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2640	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2640	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2808 wrote to memory of 2840	2808	5d5efb8b3e0d0212daab126301baa08836121677cea19be16f2eaf0be48636bbN.exe	30
PID 2808 wrote to memory of 2840	2808	5d5efb8b3e0d0212daab126301baa08836121677cea19be16f2eaf0be48636bbN.exe	30
PID 2808 wrote to memory of 2840	2808	5d5efb8b3e0d0212daab126301baa08836121677cea19be16f2eaf0be48636bbN.exe	30
PID 2808 wrote to memory of 2840	2808	5d5efb8b3e0d0212daab126301baa08836121677cea19be16f2eaf0be48636bbN.exe	30
PID 2808 wrote to memory of 2840	2808	5d5efb8b3e0d0212daab126301baa08836121677cea19be16f2eaf0be48636bbN.exe	30
PID 2808 wrote to memory of 2840	2808	5d5efb8b3e0d0212daab126301baa08836121677cea19be16f2eaf0be48636bbN.exe	30
PID 2808 wrote to memory of 2840	2808	5d5efb8b3e0d0212daab126301baa08836121677cea19be16f2eaf0be48636bbN.exe	30
PID 2840 wrote to memory of 2640	2840	a1punf5t2of.exe	31
PID 2840 wrote to memory of 2640	2840	a1punf5t2of.exe	31
PID 2840 wrote to memory of 2640	2840	a1punf5t2of.exe	31
PID 2840 wrote to memory of 2640	2840	a1punf5t2of.exe	31
PID 2840 wrote to memory of 2640	2840	a1punf5t2of.exe	31
PID 2840 wrote to memory of 2640	2840	a1punf5t2of.exe	31
PID 2840 wrote to memory of 2640	2840	a1punf5t2of.exe	31
PID 2840 wrote to memory of 2640	2840	a1punf5t2of.exe	31
PID 2840 wrote to memory of 2640	2840	a1punf5t2of.exe	31
PID 2840 wrote to memory of 2640	2840	a1punf5t2of.exe	31
PID 2840 wrote to memory of 2640	2840	a1punf5t2of.exe	31
PID 2840 wrote to memory of 2640	2840	a1punf5t2of.exe	31

C:\Users\Admin\AppData\Local\Temp\5d5efb8b3e0d0212daab126301baa08836121677cea19be16f2eaf0be48636bbN.exe
"C:\Users\Admin\AppData\Local\Temp\5d5efb8b3e0d0212daab126301baa08836121677cea19be16f2eaf0be48636bbN.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2808
- 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:2840
- - 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:2640

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
255KB

MD5
39e75ec6b1ee0a4f95ef1b3fcb4323f6

SHA1
5694764085b684cac0efdc72a9ed333ad745ea55

SHA256
e1347874ba0dd303bdb56989395efde2c276020fde2cd4ab4765d011631ef61a

SHA512
f8d6a688228c6a4546db04a04e857b659b0006a90d09c0d5cb6cf979dade9f7500028b563f055795e249cccaa05819083babf2188c373d81ea6824bc7dfa25b7

Download Submit
memory/2640-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2640-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2640-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2640-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2640-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2640-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2640-36-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2640-37-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2808-6-0x00000000740A0000-0x000000007464B000-memory.dmp

Filesize
5.7MB

Download
memory/2808-4-0x00000000740A0000-0x000000007464B000-memory.dmp

Filesize
5.7MB

Download
memory/2808-1-0x00000000740A0000-0x000000007464B000-memory.dmp

Filesize
5.7MB

Download
memory/2808-2-0x00000000740A0000-0x000000007464B000-memory.dmp

Filesize
5.7MB

Download
memory/2808-3-0x00000000740A0000-0x000000007464B000-memory.dmp

Filesize
5.7MB

Download
memory/2808-5-0x00000000740A0000-0x000000007464B000-memory.dmp

Filesize
5.7MB

Download
memory/2808-0-0x00000000740A1000-0x00000000740A2000-memory.dmp

Filesize
4KB

Download
memory/2808-15-0x00000000740A0000-0x000000007464B000-memory.dmp

Filesize
5.7MB

Download
memory/2840-16-0x00000000740A0000-0x000000007464B000-memory.dmp

Filesize
5.7MB

Download
memory/2840-21-0x00000000740A0000-0x000000007464B000-memory.dmp

Filesize
5.7MB

Download
memory/2840-17-0x00000000740A0000-0x000000007464B000-memory.dmp

Filesize
5.7MB

Download
memory/2840-20-0x00000000740A0000-0x000000007464B000-memory.dmp

Filesize
5.7MB

Download
memory/2840-19-0x00000000740A0000-0x000000007464B000-memory.dmp

Filesize
5.7MB

Download
memory/2840-18-0x00000000740A0000-0x000000007464B000-memory.dmp

Filesize
5.7MB

Download
memory/2840-39-0x00000000740A0000-0x000000007464B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads