nanocore | 49df5b8199f4591566fdfb66322ad20e3a9a4d8963cbf883ad120165903ee185

General

Target

49df5b8199f4591566fdfb66322ad20e3a9a4d8963cbf883ad120165903ee185N.exe
Size

279KB
MD5

db464bb83e0be977a081d4b35df71c10
SHA1

4ec6e466c09d920d0f32c5ab3c568c3e927461e2
SHA256

49df5b8199f4591566fdfb66322ad20e3a9a4d8963cbf883ad120165903ee185
SHA512

42376b9fc519f9a7fb5c90744dafde00666e9f1824aa48d5f1db227cc2ecb5ddd8cde5ee24b69aa1052c892729bc42ff872e304a6a1a8cb14686a8c38d1e5432
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fm:boSeGUA5YZazpXUmZhZ6e

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
2576	a1punf5t2of.exe
1332	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
2240	49df5b8199f4591566fdfb66322ad20e3a9a4d8963cbf883ad120165903ee185N.exe
2576	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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	49df5b8199f4591566fdfb66322ad20e3a9a4d8963cbf883ad120165903ee185N.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 2576 set thread context of 1332	2576	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	49df5b8199f4591566fdfb66322ad20e3a9a4d8963cbf883ad120165903ee185N.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
1332	a1punf5t2of.exe
1332	a1punf5t2of.exe
1332	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1332	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1332	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2240 wrote to memory of 2576	2240	49df5b8199f4591566fdfb66322ad20e3a9a4d8963cbf883ad120165903ee185N.exe	30
PID 2240 wrote to memory of 2576	2240	49df5b8199f4591566fdfb66322ad20e3a9a4d8963cbf883ad120165903ee185N.exe	30
PID 2240 wrote to memory of 2576	2240	49df5b8199f4591566fdfb66322ad20e3a9a4d8963cbf883ad120165903ee185N.exe	30
PID 2240 wrote to memory of 2576	2240	49df5b8199f4591566fdfb66322ad20e3a9a4d8963cbf883ad120165903ee185N.exe	30
PID 2240 wrote to memory of 2576	2240	49df5b8199f4591566fdfb66322ad20e3a9a4d8963cbf883ad120165903ee185N.exe	30
PID 2240 wrote to memory of 2576	2240	49df5b8199f4591566fdfb66322ad20e3a9a4d8963cbf883ad120165903ee185N.exe	30
PID 2240 wrote to memory of 2576	2240	49df5b8199f4591566fdfb66322ad20e3a9a4d8963cbf883ad120165903ee185N.exe	30
PID 2576 wrote to memory of 1332	2576	a1punf5t2of.exe	31
PID 2576 wrote to memory of 1332	2576	a1punf5t2of.exe	31
PID 2576 wrote to memory of 1332	2576	a1punf5t2of.exe	31
PID 2576 wrote to memory of 1332	2576	a1punf5t2of.exe	31
PID 2576 wrote to memory of 1332	2576	a1punf5t2of.exe	31
PID 2576 wrote to memory of 1332	2576	a1punf5t2of.exe	31
PID 2576 wrote to memory of 1332	2576	a1punf5t2of.exe	31
PID 2576 wrote to memory of 1332	2576	a1punf5t2of.exe	31
PID 2576 wrote to memory of 1332	2576	a1punf5t2of.exe	31
PID 2576 wrote to memory of 1332	2576	a1punf5t2of.exe	31
PID 2576 wrote to memory of 1332	2576	a1punf5t2of.exe	31
PID 2576 wrote to memory of 1332	2576	a1punf5t2of.exe	31

C:\Users\Admin\AppData\Local\Temp\49df5b8199f4591566fdfb66322ad20e3a9a4d8963cbf883ad120165903ee185N.exe
"C:\Users\Admin\AppData\Local\Temp\49df5b8199f4591566fdfb66322ad20e3a9a4d8963cbf883ad120165903ee185N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2240
- 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:2576
- - 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:1332

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
279KB

MD5
a77afb21f886eb16e3605bb59387603a

SHA1
9b6a561c8456287ce0f4796225fa0cd72e06b572

SHA256
00f97acf73d7ec77132eb0b415d7e4adbf0d8d2708b7cbd0388bd810d6490a26

SHA512
bb9a8c6d4944eaadf76a3991eb677d1bb56177ca76331f3291d9c9778c784a4d095ce72f3d8729a90e05f01e42231a37ba708566d5592ddcaa7abc6033e7f817

Download Submit
memory/1332-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1332-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1332-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1332-29-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1332-34-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1332-35-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1332-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1332-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2240-5-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2240-3-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2240-1-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2240-2-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2240-4-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2240-0-0x0000000074621000-0x0000000074622000-memory.dmp

Filesize
4KB

Download
memory/2240-15-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2240-6-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2576-17-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2576-20-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2576-16-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2576-19-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2576-18-0x0000000074620000-0x0000000074BCB000-memory.dmp

Filesize
5.7MB

Download
memory/2576-37-0x0000000074620000-0x0000000074BCB000-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