nanocore | c2719f4dd8dd6dbe0349bf790edac8ae1d712e686c83c194cbc25b6a1dec23cd

General

Target

c2719f4dd8dd6dbe0349bf790edac8ae1d712e686c83c194cbc25b6a1dec23cdN.exe
Size

255KB
MD5

c4506e7a615e43a0dd48cf769cbf21b0
SHA1

e2b4170138eb614d04eb61303683eb4991c01cb3
SHA256

c2719f4dd8dd6dbe0349bf790edac8ae1d712e686c83c194cbc25b6a1dec23cd
SHA512

ef9750b6d374c88bc0918c481002136b63bbfe7882dfcf9662030a91886e04f3dd0db3227fb0908c9f9a8f93ae8cfbbad84c42049d7381544cb323854d88f1fb
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQST:EeGUA5YZazpXUmZhdT

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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	c2719f4dd8dd6dbe0349bf790edac8ae1d712e686c83c194cbc25b6a1dec23cdN.exe

Executes dropped EXE 2 IoCs

pid	Process
1696	a1punf5t2of.exe
5104	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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	c2719f4dd8dd6dbe0349bf790edac8ae1d712e686c83c194cbc25b6a1dec23cdN.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 1696 set thread context of 5104	1696	a1punf5t2of.exe	89

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	c2719f4dd8dd6dbe0349bf790edac8ae1d712e686c83c194cbc25b6a1dec23cdN.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
5104	a1punf5t2of.exe
5104	a1punf5t2of.exe
5104	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
5104	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5104	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1728 wrote to memory of 1696	1728	c2719f4dd8dd6dbe0349bf790edac8ae1d712e686c83c194cbc25b6a1dec23cdN.exe	88
PID 1728 wrote to memory of 1696	1728	c2719f4dd8dd6dbe0349bf790edac8ae1d712e686c83c194cbc25b6a1dec23cdN.exe	88
PID 1728 wrote to memory of 1696	1728	c2719f4dd8dd6dbe0349bf790edac8ae1d712e686c83c194cbc25b6a1dec23cdN.exe	88
PID 1696 wrote to memory of 5104	1696	a1punf5t2of.exe	89
PID 1696 wrote to memory of 5104	1696	a1punf5t2of.exe	89
PID 1696 wrote to memory of 5104	1696	a1punf5t2of.exe	89
PID 1696 wrote to memory of 5104	1696	a1punf5t2of.exe	89
PID 1696 wrote to memory of 5104	1696	a1punf5t2of.exe	89
PID 1696 wrote to memory of 5104	1696	a1punf5t2of.exe	89
PID 1696 wrote to memory of 5104	1696	a1punf5t2of.exe	89
PID 1696 wrote to memory of 5104	1696	a1punf5t2of.exe	89

C:\Users\Admin\AppData\Local\Temp\c2719f4dd8dd6dbe0349bf790edac8ae1d712e686c83c194cbc25b6a1dec23cdN.exe
"C:\Users\Admin\AppData\Local\Temp\c2719f4dd8dd6dbe0349bf790edac8ae1d712e686c83c194cbc25b6a1dec23cdN.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1728
- 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:1696
- - 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:5104

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
368afd043be917876c5324e4cfa6b4d4

SHA1
91ab8f67ec52c486c2617516606e1ba1b5db3000

SHA256
1c97d76f43221e811be7607854e975b04af351240215258863d5686f59ff9449

SHA512
72e22223e0d528bde6ca5368b620b6b2d4dadc3d46b996963b3faeb7d7c4c707b64c630d19a8bf0f2fcee169494c3e87251b3c5e9a4c74b1e6c598e650f09dfe

Download Submit
memory/1696-40-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/1696-27-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/1696-26-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/1696-25-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/1696-24-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/1696-23-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/1696-22-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/1728-6-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/1728-7-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/1728-21-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/1728-0-0x0000000075552000-0x0000000075553000-memory.dmp

Filesize
4KB

Download
memory/1728-5-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/1728-4-0x0000000075552000-0x0000000075553000-memory.dmp

Filesize
4KB

Download
memory/1728-3-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/1728-2-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/1728-1-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/5104-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/5104-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/5104-33-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/5104-34-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/5104-35-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/5104-37-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/5104-38-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download
memory/5104-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/5104-41-0x0000000075550000-0x0000000075B01000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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