nanocore | c07f900c54a1ab2f5e84bcc079f40185fc2c509f280713296d03ebe3f6634f02

General

Target

4fad4e5a1864e49121e55e0b810f2d70N.exe
Size

280KB
MD5

4fad4e5a1864e49121e55e0b810f2d70
SHA1

977347bb76eb2df477127fa14f5615e0408b57be
SHA256

c07f900c54a1ab2f5e84bcc079f40185fc2c509f280713296d03ebe3f6634f02
SHA512

9c16cab5ebb0863c9805c4ba27c173cffb07085230ae8ea9e7be77b6a2a077954f040690127f31fd49257a5913829d701d4ade00ceef741972bddbf021735071
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKx6:boSeGUA5YZazpXUmZhZ6SY

Score

10^/10

nanocore 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

pid	Process
2824	a1punf5t2of.exe
2548	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
2088	4fad4e5a1864e49121e55e0b810f2d70N.exe
2824	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-1-5-21-940600906-3464502421-4240639183-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	4fad4e5a1864e49121e55e0b810f2d70N.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 2824 set thread context of 2548	2824	a1punf5t2of.exe	32

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2548	a1punf5t2of.exe
2548	a1punf5t2of.exe
2548	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2548	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2548	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2088 wrote to memory of 2824	2088	4fad4e5a1864e49121e55e0b810f2d70N.exe	31
PID 2088 wrote to memory of 2824	2088	4fad4e5a1864e49121e55e0b810f2d70N.exe	31
PID 2088 wrote to memory of 2824	2088	4fad4e5a1864e49121e55e0b810f2d70N.exe	31
PID 2088 wrote to memory of 2824	2088	4fad4e5a1864e49121e55e0b810f2d70N.exe	31
PID 2088 wrote to memory of 2824	2088	4fad4e5a1864e49121e55e0b810f2d70N.exe	31
PID 2088 wrote to memory of 2824	2088	4fad4e5a1864e49121e55e0b810f2d70N.exe	31
PID 2088 wrote to memory of 2824	2088	4fad4e5a1864e49121e55e0b810f2d70N.exe	31
PID 2824 wrote to memory of 2548	2824	a1punf5t2of.exe	32
PID 2824 wrote to memory of 2548	2824	a1punf5t2of.exe	32
PID 2824 wrote to memory of 2548	2824	a1punf5t2of.exe	32
PID 2824 wrote to memory of 2548	2824	a1punf5t2of.exe	32
PID 2824 wrote to memory of 2548	2824	a1punf5t2of.exe	32
PID 2824 wrote to memory of 2548	2824	a1punf5t2of.exe	32
PID 2824 wrote to memory of 2548	2824	a1punf5t2of.exe	32
PID 2824 wrote to memory of 2548	2824	a1punf5t2of.exe	32
PID 2824 wrote to memory of 2548	2824	a1punf5t2of.exe	32
PID 2824 wrote to memory of 2548	2824	a1punf5t2of.exe	32
PID 2824 wrote to memory of 2548	2824	a1punf5t2of.exe	32
PID 2824 wrote to memory of 2548	2824	a1punf5t2of.exe	32

C:\Users\Admin\AppData\Local\Temp\4fad4e5a1864e49121e55e0b810f2d70N.exe
"C:\Users\Admin\AppData\Local\Temp\4fad4e5a1864e49121e55e0b810f2d70N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2088
- 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
  - Suspicious use of WriteProcessMemory
  PID:2824
- - 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
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:2548

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
280KB

MD5
165b006fb0bd8102bc88c9235952cfb3

SHA1
3ce19e56bc960f59581482d5499ed5ef92c5b002

SHA256
f3ce3addb02ebb5233ebc48c8c05ececc5b57e01f10e53b455ec09e5f4c897e5

SHA512
e34b30cd1c40377521124d2d34e4639ddbc479199304bd55adf7315226ae7fc919465fb4259df0ee1062e5f7ca82d0f063db6ae8f00a14743c26f6c556f8a8a3

Download Submit
memory/2088-0-0x0000000074D81000-0x0000000074D82000-memory.dmp

Filesize
4KB

Download
memory/2088-1-0x0000000074D80000-0x000000007532B000-memory.dmp

Filesize
5.7MB

Download
memory/2088-2-0x0000000074D80000-0x000000007532B000-memory.dmp

Filesize
5.7MB

Download
memory/2088-3-0x0000000074D80000-0x000000007532B000-memory.dmp

Filesize
5.7MB

Download
memory/2088-12-0x0000000074D80000-0x000000007532B000-memory.dmp

Filesize
5.7MB

Download
memory/2548-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2548-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2548-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2548-32-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2548-34-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2548-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2548-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2548-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2824-14-0x0000000074D80000-0x000000007532B000-memory.dmp

Filesize
5.7MB

Download
memory/2824-13-0x0000000074D80000-0x000000007532B000-memory.dmp

Filesize
5.7MB

Download
memory/2824-36-0x0000000074D80000-0x000000007532B000-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