nanocore | 713c2934d143ed86e70ccfa08cd909c59c9be2a74023c3b8eb4ec9a2ba04f2de

General

Target

713c2934d143ed86e70ccfa08cd909c59c9be2a74023c3b8eb4ec9a2ba04f2de.exe
Size

255KB
MD5

212e68ca528fe3ee2e6fd78377f50ed8
SHA1

b684defc93307467abb976043e58d7ff183a927f
SHA256

713c2934d143ed86e70ccfa08cd909c59c9be2a74023c3b8eb4ec9a2ba04f2de
SHA512

9bddcb369ddab3b99a6c3fa25804a2f3fd57bdc57fd6440c2e90ecec9e104644de0231684d2f4688f190ba282418bc3dc76cb1a902bce59221b8e92072b691a0
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQS5:EeGUA5YZazpXUmZhd5

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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	713c2934d143ed86e70ccfa08cd909c59c9be2a74023c3b8eb4ec9a2ba04f2de.exe

Executes dropped EXE 2 IoCs

pid	Process
1176	a1punf5t2of.exe
1428	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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	713c2934d143ed86e70ccfa08cd909c59c9be2a74023c3b8eb4ec9a2ba04f2de.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 1176 set thread context of 1428	1176	a1punf5t2of.exe	90

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	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	713c2934d143ed86e70ccfa08cd909c59c9be2a74023c3b8eb4ec9a2ba04f2de.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1428	a1punf5t2of.exe
1428	a1punf5t2of.exe
1428	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1428	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1428	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 748 wrote to memory of 1176	748	713c2934d143ed86e70ccfa08cd909c59c9be2a74023c3b8eb4ec9a2ba04f2de.exe	89
PID 748 wrote to memory of 1176	748	713c2934d143ed86e70ccfa08cd909c59c9be2a74023c3b8eb4ec9a2ba04f2de.exe	89
PID 748 wrote to memory of 1176	748	713c2934d143ed86e70ccfa08cd909c59c9be2a74023c3b8eb4ec9a2ba04f2de.exe	89
PID 1176 wrote to memory of 1428	1176	a1punf5t2of.exe	90
PID 1176 wrote to memory of 1428	1176	a1punf5t2of.exe	90
PID 1176 wrote to memory of 1428	1176	a1punf5t2of.exe	90
PID 1176 wrote to memory of 1428	1176	a1punf5t2of.exe	90
PID 1176 wrote to memory of 1428	1176	a1punf5t2of.exe	90
PID 1176 wrote to memory of 1428	1176	a1punf5t2of.exe	90
PID 1176 wrote to memory of 1428	1176	a1punf5t2of.exe	90
PID 1176 wrote to memory of 1428	1176	a1punf5t2of.exe	90

C:\Users\Admin\AppData\Local\Temp\713c2934d143ed86e70ccfa08cd909c59c9be2a74023c3b8eb4ec9a2ba04f2de.exe
"C:\Users\Admin\AppData\Local\Temp\713c2934d143ed86e70ccfa08cd909c59c9be2a74023c3b8eb4ec9a2ba04f2de.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:748
- 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:1176
- - 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:1428

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
869cfc7677c317bfbae27a7b4621ecff

SHA1
d0651a1efa8c4b1dc1fb3317fd1fc8bf3ef7f250

SHA256
0f21314059ca2182f5f4d6040533c027fb806f2e881780efb90b51ff55e216d9

SHA512
bb4593ddf03721dff0b2d66270763e2872605c4ddd1fe8c7787764a1c7ec66446d8083363d8d95978c18041de875a20ff6fb73e924af4bbf48e2fac09d5f0b7f

Download Submit
memory/748-22-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/748-1-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/748-2-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/748-3-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/748-4-0x0000000075152000-0x0000000075153000-memory.dmp

Filesize
4KB

Download
memory/748-5-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/748-6-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/748-7-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/748-0-0x0000000075152000-0x0000000075153000-memory.dmp

Filesize
4KB

Download
memory/1176-24-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/1176-23-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/1176-21-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/1176-25-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/1176-26-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/1176-38-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/1428-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1428-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1428-33-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/1428-32-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/1428-35-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/1428-36-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download
memory/1428-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1428-39-0x0000000075150000-0x0000000075701000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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