nanocore | 9bbdccaba50c1f1722ff367ed14cd5ad2f0d2c9c8e8a33d1b5b0e4abefb758a3

General

Target

9bbdccaba50c1f1722ff367ed14cd5ad2f0d2c9c8e8a33d1b5b0e4abefb758a3.exe
Size

254KB
MD5

6b9d81d1fbcc97e7e5bb7d578fd6f581
SHA1

584484d21cb67c443ea5518b27eb919ded8bc425
SHA256

9bbdccaba50c1f1722ff367ed14cd5ad2f0d2c9c8e8a33d1b5b0e4abefb758a3
SHA512

7de00295911681b87fa84a49654a61cfd416df9863990cd732ebefa057aa017ac1b890082c373d25631c811819b745493f5efaa0690a63f20964ce7390b302cf
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ9r:EeGUA5YZazpXUmZhmr

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

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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	9bbdccaba50c1f1722ff367ed14cd5ad2f0d2c9c8e8a33d1b5b0e4abefb758a3.exe

Executes dropped EXE 2 IoCs

pid	Process
4976	a1punf5t2of.exe
2832	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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	9bbdccaba50c1f1722ff367ed14cd5ad2f0d2c9c8e8a33d1b5b0e4abefb758a3.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 4976 set thread context of 2832	4976	a1punf5t2of.exe	99

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	9bbdccaba50c1f1722ff367ed14cd5ad2f0d2c9c8e8a33d1b5b0e4abefb758a3.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
2832	a1punf5t2of.exe
2832	a1punf5t2of.exe
2832	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2832	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2832	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3444 wrote to memory of 4976	3444	9bbdccaba50c1f1722ff367ed14cd5ad2f0d2c9c8e8a33d1b5b0e4abefb758a3.exe	98
PID 3444 wrote to memory of 4976	3444	9bbdccaba50c1f1722ff367ed14cd5ad2f0d2c9c8e8a33d1b5b0e4abefb758a3.exe	98
PID 3444 wrote to memory of 4976	3444	9bbdccaba50c1f1722ff367ed14cd5ad2f0d2c9c8e8a33d1b5b0e4abefb758a3.exe	98
PID 4976 wrote to memory of 2832	4976	a1punf5t2of.exe	99
PID 4976 wrote to memory of 2832	4976	a1punf5t2of.exe	99
PID 4976 wrote to memory of 2832	4976	a1punf5t2of.exe	99
PID 4976 wrote to memory of 2832	4976	a1punf5t2of.exe	99
PID 4976 wrote to memory of 2832	4976	a1punf5t2of.exe	99
PID 4976 wrote to memory of 2832	4976	a1punf5t2of.exe	99
PID 4976 wrote to memory of 2832	4976	a1punf5t2of.exe	99
PID 4976 wrote to memory of 2832	4976	a1punf5t2of.exe	99

C:\Users\Admin\AppData\Local\Temp\9bbdccaba50c1f1722ff367ed14cd5ad2f0d2c9c8e8a33d1b5b0e4abefb758a3.exe
"C:\Users\Admin\AppData\Local\Temp\9bbdccaba50c1f1722ff367ed14cd5ad2f0d2c9c8e8a33d1b5b0e4abefb758a3.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3444
- 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:4976
- - 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:2832

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
254KB

MD5
ec2dbdafabe643c381dfee6936ba0f7b

SHA1
fb7a0220b3621294ed0c25e5df0af741267a19eb

SHA256
8e3ffd89da3b226c3662dc7b9d442495d0a5cafb9ae6028ca87cb3f1e2aaa0a8

SHA512
eb520f5a361d48a266865c08c514118875915b9a59b9e838e58a41d5d4a51fcf27d202b8862037790de7bbe4142d75d78504185666943102411eafc5449ef714

Download Submit
memory/2832-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2832-40-0x00000000748A0000-0x0000000074E51000-memory.dmp

Filesize
5.7MB

Download
memory/2832-37-0x00000000748A0000-0x0000000074E51000-memory.dmp

Filesize
5.7MB

Download
memory/2832-36-0x00000000748A0000-0x0000000074E51000-memory.dmp

Filesize
5.7MB

Download
memory/2832-34-0x00000000748A0000-0x0000000074E51000-memory.dmp

Filesize
5.7MB

Download
memory/2832-33-0x00000000748A0000-0x0000000074E51000-memory.dmp

Filesize
5.7MB

Download
memory/2832-32-0x00000000748A0000-0x0000000074E51000-memory.dmp

Filesize
5.7MB

Download
memory/2832-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2832-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3444-6-0x00000000748A0000-0x0000000074E51000-memory.dmp

Filesize
5.7MB

Download
memory/3444-4-0x00000000748A2000-0x00000000748A3000-memory.dmp

Filesize
4KB

Download
memory/3444-1-0x00000000748A0000-0x0000000074E51000-memory.dmp

Filesize
5.7MB

Download
memory/3444-2-0x00000000748A0000-0x0000000074E51000-memory.dmp

Filesize
5.7MB

Download
memory/3444-3-0x00000000748A0000-0x0000000074E51000-memory.dmp

Filesize
5.7MB

Download
memory/3444-21-0x00000000748A0000-0x0000000074E51000-memory.dmp

Filesize
5.7MB

Download
memory/3444-5-0x00000000748A0000-0x0000000074E51000-memory.dmp

Filesize
5.7MB

Download
memory/3444-7-0x00000000748A0000-0x0000000074E51000-memory.dmp

Filesize
5.7MB

Download
memory/3444-0-0x00000000748A2000-0x00000000748A3000-memory.dmp

Filesize
4KB

Download
memory/4976-22-0x00000000748A0000-0x0000000074E51000-memory.dmp

Filesize
5.7MB

Download
memory/4976-23-0x00000000748A0000-0x0000000074E51000-memory.dmp

Filesize
5.7MB

Download
memory/4976-26-0x00000000748A0000-0x0000000074E51000-memory.dmp

Filesize
5.7MB

Download
memory/4976-25-0x00000000748A0000-0x0000000074E51000-memory.dmp

Filesize
5.7MB

Download
memory/4976-39-0x00000000748A0000-0x0000000074E51000-memory.dmp

Filesize
5.7MB

Download
memory/4976-24-0x00000000748A0000-0x0000000074E51000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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