nanocore | 99332453c5a5dff57507cc6f75213e246b284a6a4cb234bd8d1c8d19375441f9

General

Target

99332453c5a5dff57507cc6f75213e246b284a6a4cb234bd8d1c8d19375441f9N.exe
Size

254KB
MD5

d2672e8be8f517e02f29be484b1bc3a0
SHA1

f8b2d116a750a24c1bef9657365c3daeb203cad3
SHA256

99332453c5a5dff57507cc6f75213e246b284a6a4cb234bd8d1c8d19375441f9
SHA512

b44e5f4d3ceb6fe48a66cfff8347a5158d9bf15b53d90c3ea1d930759b43d8720bb61b6b96ab8f9e6e7f638482e1526573c7414a0aeccd5d5c03b5ff98bfc33b
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQlog:EeGUA5YZazpXUmZhSog

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

Processes:

99332453c5a5dff57507cc6f75213e246b284a6a4cb234bd8d1c8d19375441f9N.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	99332453c5a5dff57507cc6f75213e246b284a6a4cb234bd8d1c8d19375441f9N.exe

Executes dropped EXE 2 IoCs

Processes:

a1punf5t2of.exea1punf5t2of.exe

pid process

1188 a1punf5t2of.exe
1932 a1punf5t2of.exe

pid	process
1188	a1punf5t2of.exe
1932	a1punf5t2of.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

99332453c5a5dff57507cc6f75213e246b284a6a4cb234bd8d1c8d19375441f9N.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	99332453c5a5dff57507cc6f75213e246b284a6a4cb234bd8d1c8d19375441f9N.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

a1punf5t2of.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA a1punf5t2of.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

a1punf5t2of.exe

description pid process target process

PID 1188 set thread context of 1932 1188 a1punf5t2of.exe a1punf5t2of.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	a1punf5t2of.exe

description	pid	process	target process
PID 1188 set thread context of 1932	1188	a1punf5t2of.exe	a1punf5t2of.exe

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

Processes:

99332453c5a5dff57507cc6f75213e246b284a6a4cb234bd8d1c8d19375441f9N.exea1punf5t2of.exea1punf5t2of.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	99332453c5a5dff57507cc6f75213e246b284a6a4cb234bd8d1c8d19375441f9N.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

Processes:

a1punf5t2of.exe

pid process

1932 a1punf5t2of.exe
1932 a1punf5t2of.exe
1932 a1punf5t2of.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

a1punf5t2of.exe

pid process

1932 a1punf5t2of.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

a1punf5t2of.exe

description pid process

Token: SeDebugPrivilege 1932 a1punf5t2of.exe

pid	process
1932	a1punf5t2of.exe
1932	a1punf5t2of.exe
1932	a1punf5t2of.exe

pid	process
1932	a1punf5t2of.exe

description	pid	process
Token: SeDebugPrivilege	1932	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

99332453c5a5dff57507cc6f75213e246b284a6a4cb234bd8d1c8d19375441f9N.exea1punf5t2of.exe

description	pid	process	target process
PID 4468 wrote to memory of 1188	4468	99332453c5a5dff57507cc6f75213e246b284a6a4cb234bd8d1c8d19375441f9N.exe	a1punf5t2of.exe
PID 4468 wrote to memory of 1188	4468	99332453c5a5dff57507cc6f75213e246b284a6a4cb234bd8d1c8d19375441f9N.exe	a1punf5t2of.exe
PID 4468 wrote to memory of 1188	4468	99332453c5a5dff57507cc6f75213e246b284a6a4cb234bd8d1c8d19375441f9N.exe	a1punf5t2of.exe
PID 1188 wrote to memory of 1932	1188	a1punf5t2of.exe	a1punf5t2of.exe
PID 1188 wrote to memory of 1932	1188	a1punf5t2of.exe	a1punf5t2of.exe
PID 1188 wrote to memory of 1932	1188	a1punf5t2of.exe	a1punf5t2of.exe
PID 1188 wrote to memory of 1932	1188	a1punf5t2of.exe	a1punf5t2of.exe
PID 1188 wrote to memory of 1932	1188	a1punf5t2of.exe	a1punf5t2of.exe
PID 1188 wrote to memory of 1932	1188	a1punf5t2of.exe	a1punf5t2of.exe
PID 1188 wrote to memory of 1932	1188	a1punf5t2of.exe	a1punf5t2of.exe
PID 1188 wrote to memory of 1932	1188	a1punf5t2of.exe	a1punf5t2of.exe

C:\Users\Admin\AppData\Local\Temp\99332453c5a5dff57507cc6f75213e246b284a6a4cb234bd8d1c8d19375441f9N.exe
"C:\Users\Admin\AppData\Local\Temp\99332453c5a5dff57507cc6f75213e246b284a6a4cb234bd8d1c8d19375441f9N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4468
- 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:1188
- - 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:1932

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
255KB

MD5
f1a4c11166709f1236dda61c90b28109

SHA1
3b33f0467ad72999ed74741a75860d63fce4be53

SHA256
88d6705a0c1db44d52ea32526efb5bc3ddb687f36251583617228cd816038860

SHA512
a82d7de6344999f14ba7d2643c1b4414912948b02b476e6bc43734e85fb599147bf909a7e9c00246654563e57317d192df9b0b99c8752150571c331840e399b3

Download Submit
memory/1188-25-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/1188-37-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/1188-26-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/1188-24-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/1188-23-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/1188-22-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/1932-35-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/1932-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1932-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1932-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1932-32-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/1932-34-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/1932-38-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/4468-5-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/4468-21-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/4468-7-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/4468-6-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/4468-0-0x0000000074E42000-0x0000000074E43000-memory.dmp

Filesize
4KB

Download
memory/4468-4-0x0000000074E42000-0x0000000074E43000-memory.dmp

Filesize
4KB

Download
memory/4468-3-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/4468-2-0x0000000074E40000-0x00000000753F1000-memory.dmp

Filesize
5.7MB

Download
memory/4468-1-0x0000000074E40000-0x00000000753F1000-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