nanocore | d0bb341401c64e185081ddc4af463502ac94544230a9699935fba74a9eee6a66

General

Target

c14a955b1bf5ccdf3553445520f690b0N.exe
Size

281KB
MD5

c14a955b1bf5ccdf3553445520f690b0
SHA1

c736b223fa75e005d0bf2a876fb8d5fd335789dd
SHA256

d0bb341401c64e185081ddc4af463502ac94544230a9699935fba74a9eee6a66
SHA512

a2bdc3d0af27d43bf3e5a019f1c7de2519e18b9b6941e179c944139bfcf0ab957229638ee081824c93e39c25d38c9a52c7f2b6be0695aee69871307fa50a5825
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKc:boSeGUA5YZazpXUmZhZ6Sc

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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	c14a955b1bf5ccdf3553445520f690b0N.exe

Executes dropped EXE 2 IoCs

pid	Process
2240	a1punf5t2of.exe
2036	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-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	c14a955b1bf5ccdf3553445520f690b0N.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 2240 set thread context of 2036	2240	a1punf5t2of.exe	94

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	c14a955b1bf5ccdf3553445520f690b0N.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
2036	a1punf5t2of.exe
2036	a1punf5t2of.exe
2036	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2036	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2036	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3288 wrote to memory of 2240	3288	c14a955b1bf5ccdf3553445520f690b0N.exe	93
PID 3288 wrote to memory of 2240	3288	c14a955b1bf5ccdf3553445520f690b0N.exe	93
PID 3288 wrote to memory of 2240	3288	c14a955b1bf5ccdf3553445520f690b0N.exe	93
PID 2240 wrote to memory of 2036	2240	a1punf5t2of.exe	94
PID 2240 wrote to memory of 2036	2240	a1punf5t2of.exe	94
PID 2240 wrote to memory of 2036	2240	a1punf5t2of.exe	94
PID 2240 wrote to memory of 2036	2240	a1punf5t2of.exe	94
PID 2240 wrote to memory of 2036	2240	a1punf5t2of.exe	94
PID 2240 wrote to memory of 2036	2240	a1punf5t2of.exe	94
PID 2240 wrote to memory of 2036	2240	a1punf5t2of.exe	94
PID 2240 wrote to memory of 2036	2240	a1punf5t2of.exe	94

C:\Users\Admin\AppData\Local\Temp\c14a955b1bf5ccdf3553445520f690b0N.exe
"C:\Users\Admin\AppData\Local\Temp\c14a955b1bf5ccdf3553445520f690b0N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3288
- 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:2240
- - 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:2036

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
281KB

MD5
8c287f685843cd30ffabcfcb121e9bfa

SHA1
e379a0b6f962d5895080741fe430e1d0631c2ad9

SHA256
273f44227415aac9cb7402927e71ff3c923a305fde97f0770f0778a74de10499

SHA512
8f185bda1e10f1e09918ea172bfc4cbda285bbfffd6f3f7ae515e72f5f27e5fcc84cb8ddb9923295a9e01d1e3cbf434adee2a198fb6f7225e5826ad2f68b2cf6

Download Submit
memory/2036-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2036-40-0x0000000074D20000-0x00000000752D1000-memory.dmp

Filesize
5.7MB

Download
memory/2036-37-0x0000000074D20000-0x00000000752D1000-memory.dmp

Filesize
5.7MB

Download
memory/2036-36-0x0000000074D20000-0x00000000752D1000-memory.dmp

Filesize
5.7MB

Download
memory/2036-34-0x0000000074D20000-0x00000000752D1000-memory.dmp

Filesize
5.7MB

Download
memory/2036-33-0x0000000074D20000-0x00000000752D1000-memory.dmp

Filesize
5.7MB

Download
memory/2036-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2036-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2240-24-0x0000000074D20000-0x00000000752D1000-memory.dmp

Filesize
5.7MB

Download
memory/2240-23-0x0000000074D20000-0x00000000752D1000-memory.dmp

Filesize
5.7MB

Download
memory/2240-21-0x0000000074D20000-0x00000000752D1000-memory.dmp

Filesize
5.7MB

Download
memory/2240-39-0x0000000074D20000-0x00000000752D1000-memory.dmp

Filesize
5.7MB

Download
memory/2240-25-0x0000000074D20000-0x00000000752D1000-memory.dmp

Filesize
5.7MB

Download
memory/2240-26-0x0000000074D20000-0x00000000752D1000-memory.dmp

Filesize
5.7MB

Download
memory/2240-27-0x0000000074D20000-0x00000000752D1000-memory.dmp

Filesize
5.7MB

Download
memory/3288-22-0x0000000074D20000-0x00000000752D1000-memory.dmp

Filesize
5.7MB

Download
memory/3288-7-0x0000000074D20000-0x00000000752D1000-memory.dmp

Filesize
5.7MB

Download
memory/3288-6-0x0000000074D20000-0x00000000752D1000-memory.dmp

Filesize
5.7MB

Download
memory/3288-5-0x0000000074D20000-0x00000000752D1000-memory.dmp

Filesize
5.7MB

Download
memory/3288-4-0x0000000074D22000-0x0000000074D23000-memory.dmp

Filesize
4KB

Download
memory/3288-3-0x0000000074D20000-0x00000000752D1000-memory.dmp

Filesize
5.7MB

Download
memory/3288-2-0x0000000074D20000-0x00000000752D1000-memory.dmp

Filesize
5.7MB

Download
memory/3288-0-0x0000000074D22000-0x0000000074D23000-memory.dmp

Filesize
4KB

Download
memory/3288-1-0x0000000074D20000-0x00000000752D1000-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