nanocore | 24ea519a0d7aede071c5aebec16ab14bf9cbf943cb017aea2ef7d1790572af3e

General

Target

24ea519a0d7aede071c5aebec16ab14bf9cbf943cb017aea2ef7d1790572af3e.exe
Size

255KB
MD5

b59d113453f6acb572f60b43f13fda5a
SHA1

56e5a19e9110d1b7b8ee5d47493f47e11350244e
SHA256

24ea519a0d7aede071c5aebec16ab14bf9cbf943cb017aea2ef7d1790572af3e
SHA512

67cd9e148dbbe7085718a79b7c03664f54d4779b43dcc750a7d04f92489e8015f0c3ec7a2a505400fb3fe4459089ea0ea7a6ef9fa6a88bc4e2a23e4e8446bdfa
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQS4l:EeGUA5YZazpXUmZh94l

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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	24ea519a0d7aede071c5aebec16ab14bf9cbf943cb017aea2ef7d1790572af3e.exe

Executes dropped EXE 2 IoCs

pid	Process
208	a1punf5t2of.exe
2376	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-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	24ea519a0d7aede071c5aebec16ab14bf9cbf943cb017aea2ef7d1790572af3e.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 208 set thread context of 2376	208	a1punf5t2of.exe	91

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	24ea519a0d7aede071c5aebec16ab14bf9cbf943cb017aea2ef7d1790572af3e.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
2376	a1punf5t2of.exe
2376	a1punf5t2of.exe
2376	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2376	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2376	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2320 wrote to memory of 208	2320	24ea519a0d7aede071c5aebec16ab14bf9cbf943cb017aea2ef7d1790572af3e.exe	88
PID 2320 wrote to memory of 208	2320	24ea519a0d7aede071c5aebec16ab14bf9cbf943cb017aea2ef7d1790572af3e.exe	88
PID 2320 wrote to memory of 208	2320	24ea519a0d7aede071c5aebec16ab14bf9cbf943cb017aea2ef7d1790572af3e.exe	88
PID 208 wrote to memory of 2376	208	a1punf5t2of.exe	91
PID 208 wrote to memory of 2376	208	a1punf5t2of.exe	91
PID 208 wrote to memory of 2376	208	a1punf5t2of.exe	91
PID 208 wrote to memory of 2376	208	a1punf5t2of.exe	91
PID 208 wrote to memory of 2376	208	a1punf5t2of.exe	91
PID 208 wrote to memory of 2376	208	a1punf5t2of.exe	91
PID 208 wrote to memory of 2376	208	a1punf5t2of.exe	91
PID 208 wrote to memory of 2376	208	a1punf5t2of.exe	91

C:\Users\Admin\AppData\Local\Temp\24ea519a0d7aede071c5aebec16ab14bf9cbf943cb017aea2ef7d1790572af3e.exe
"C:\Users\Admin\AppData\Local\Temp\24ea519a0d7aede071c5aebec16ab14bf9cbf943cb017aea2ef7d1790572af3e.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2320
- 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:208
- - 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:2376

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
256KB

MD5
dfec0f93c0bdfe1c76dd2bc0808107e6

SHA1
5f5d4a39eb6010897c540b73455c1f03a2cb11ae

SHA256
b2e2e9e258189fae026a803df8913d00f55bbcad9de3f9883cb2c81297956c83

SHA512
caf1b9e5988b5680330ad115fd4427cd1c6d3c225f14bb3cdfc9d0c1f8b154a534a8eba26863e731b948f7c29490de6e023b4b64f4493a8aa02e03b3087a553f

Download Submit
memory/208-23-0x0000000075490000-0x0000000075A41000-memory.dmp

Filesize
5.7MB

Download
memory/208-41-0x0000000075490000-0x0000000075A41000-memory.dmp

Filesize
5.7MB

Download
memory/208-28-0x0000000075490000-0x0000000075A41000-memory.dmp

Filesize
5.7MB

Download
memory/208-27-0x0000000075490000-0x0000000075A41000-memory.dmp

Filesize
5.7MB

Download
memory/208-26-0x0000000075490000-0x0000000075A41000-memory.dmp

Filesize
5.7MB

Download
memory/208-25-0x0000000075490000-0x0000000075A41000-memory.dmp

Filesize
5.7MB

Download
memory/208-21-0x0000000075490000-0x0000000075A41000-memory.dmp

Filesize
5.7MB

Download
memory/208-24-0x0000000075490000-0x0000000075A41000-memory.dmp

Filesize
5.7MB

Download
memory/2320-6-0x0000000075490000-0x0000000075A41000-memory.dmp

Filesize
5.7MB

Download
memory/2320-22-0x0000000075490000-0x0000000075A41000-memory.dmp

Filesize
5.7MB

Download
memory/2320-7-0x0000000075490000-0x0000000075A41000-memory.dmp

Filesize
5.7MB

Download
memory/2320-0-0x0000000075492000-0x0000000075493000-memory.dmp

Filesize
4KB

Download
memory/2320-5-0x0000000075490000-0x0000000075A41000-memory.dmp

Filesize
5.7MB

Download
memory/2320-4-0x0000000075492000-0x0000000075493000-memory.dmp

Filesize
4KB

Download
memory/2320-3-0x0000000075490000-0x0000000075A41000-memory.dmp

Filesize
5.7MB

Download
memory/2320-2-0x0000000075490000-0x0000000075A41000-memory.dmp

Filesize
5.7MB

Download
memory/2320-1-0x0000000075490000-0x0000000075A41000-memory.dmp

Filesize
5.7MB

Download
memory/2376-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2376-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2376-34-0x0000000075490000-0x0000000075A41000-memory.dmp

Filesize
5.7MB

Download
memory/2376-36-0x0000000075490000-0x0000000075A41000-memory.dmp

Filesize
5.7MB

Download
memory/2376-35-0x0000000075490000-0x0000000075A41000-memory.dmp

Filesize
5.7MB

Download
memory/2376-38-0x0000000075490000-0x0000000075A41000-memory.dmp

Filesize
5.7MB

Download
memory/2376-39-0x0000000075490000-0x0000000075A41000-memory.dmp

Filesize
5.7MB

Download
memory/2376-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2376-42-0x0000000075490000-0x0000000075A41000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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