nanocore | 097c3cce81877cecdb775d6f754335d3ab6ad8db5f9d524bb2db03fba3222baf

General

Target

097c3cce81877cecdb775d6f754335d3ab6ad8db5f9d524bb2db03fba3222baf.exe
Size

282KB
MD5

3fdfed2627088eb9c5a42ea698fdea68
SHA1

bc59331c2b825fe5c16417eed4d4e804c664cea7
SHA256

097c3cce81877cecdb775d6f754335d3ab6ad8db5f9d524bb2db03fba3222baf
SHA512

fd14b5f5dc0653306b7a614ac6e18c8def5dc325761301a6c43f96080b59d14f5607e9d7506f109439a07f37691cd9954ee78916edea8e68370d458a9a1853cf
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkf4:boSeGUA5YZazpXUmZhZ6SZ

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	097c3cce81877cecdb775d6f754335d3ab6ad8db5f9d524bb2db03fba3222baf.exe

Executes dropped EXE 2 IoCs

pid	Process
2464	a1punf5t2of.exe
1268	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-1-5-21-1302416131-1437503476-2806442725-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	097c3cce81877cecdb775d6f754335d3ab6ad8db5f9d524bb2db03fba3222baf.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 2464 set thread context of 1268	2464	a1punf5t2of.exe	90

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	097c3cce81877cecdb775d6f754335d3ab6ad8db5f9d524bb2db03fba3222baf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1268	a1punf5t2of.exe
1268	a1punf5t2of.exe
1268	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1268	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1268	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4456 wrote to memory of 2464	4456	097c3cce81877cecdb775d6f754335d3ab6ad8db5f9d524bb2db03fba3222baf.exe	86
PID 4456 wrote to memory of 2464	4456	097c3cce81877cecdb775d6f754335d3ab6ad8db5f9d524bb2db03fba3222baf.exe	86
PID 4456 wrote to memory of 2464	4456	097c3cce81877cecdb775d6f754335d3ab6ad8db5f9d524bb2db03fba3222baf.exe	86
PID 2464 wrote to memory of 1268	2464	a1punf5t2of.exe	90
PID 2464 wrote to memory of 1268	2464	a1punf5t2of.exe	90
PID 2464 wrote to memory of 1268	2464	a1punf5t2of.exe	90
PID 2464 wrote to memory of 1268	2464	a1punf5t2of.exe	90
PID 2464 wrote to memory of 1268	2464	a1punf5t2of.exe	90
PID 2464 wrote to memory of 1268	2464	a1punf5t2of.exe	90
PID 2464 wrote to memory of 1268	2464	a1punf5t2of.exe	90
PID 2464 wrote to memory of 1268	2464	a1punf5t2of.exe	90

C:\Users\Admin\AppData\Local\Temp\097c3cce81877cecdb775d6f754335d3ab6ad8db5f9d524bb2db03fba3222baf.exe
"C:\Users\Admin\AppData\Local\Temp\097c3cce81877cecdb775d6f754335d3ab6ad8db5f9d524bb2db03fba3222baf.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4456
- C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
  "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2464
- - 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:1268

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

Query Registry

1

T1012

System Information Discovery

3

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
282KB

MD5
249ea33dc6f22599dc9218cfcca338dd

SHA1
b0cc6f5965b0bf5a63a41ddf47d089f77304a0a2

SHA256
707f4351dd172aa02ca8db5aaca0e8c9b09320a7a264afa20cad01df90280bc2

SHA512
0daf55563be3a416d4ee4f160c7bb08a7f99d838ade99be51b54b1286a61c198120394463a0626eb3dd49d38e2459e92dce2825fd43344255ca2438f09ff7f1b

Download Submit
memory/1268-38-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/1268-36-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/1268-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1268-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1268-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1268-35-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/1268-34-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/1268-42-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/1268-39-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/2464-41-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/2464-23-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/2464-24-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/2464-25-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/2464-26-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/2464-27-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/2464-28-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/2464-22-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/4456-6-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/4456-21-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/4456-7-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/4456-0-0x00000000746F2000-0x00000000746F3000-memory.dmp

Filesize
4KB

Download
memory/4456-5-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/4456-4-0x00000000746F2000-0x00000000746F3000-memory.dmp

Filesize
4KB

Download
memory/4456-3-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/4456-2-0x00000000746F0000-0x0000000074CA1000-memory.dmp

Filesize
5.7MB

Download
memory/4456-1-0x00000000746F0000-0x0000000074CA1000-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