nanocore | 36dd20d95fd9bf6ad32c3f80db33fc5710d3bcd23d9d3762b793e572b605b57d

General

Target

36dd20d95fd9bf6ad32c3f80db33fc5710d3bcd23d9d3762b793e572b605b57d.exe
Size

281KB
MD5

7dd161c567f8182658d9fa7c662075f4
SHA1

71e878c006cba98cf0e685721ec593f572787f2b
SHA256

36dd20d95fd9bf6ad32c3f80db33fc5710d3bcd23d9d3762b793e572b605b57d
SHA512

497a21c515744bc10c53bb83af43caffec6879561ea76f3dc8660cb80b0944d9c3e8411b98fbf6321208ed48c344a9919b659f6f448ecc3f7ca489a4776eb763
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66f8:boSeGUA5YZazpXUmZhZ6U

Score

10^/10

nanocore defense_evasion discovery 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-1-5-21-3446877943-4095308722-756223633-1000\Control Panel\International\Geo\Nation	36dd20d95fd9bf6ad32c3f80db33fc5710d3bcd23d9d3762b793e572b605b57d.exe

Executes dropped EXE 2 IoCs

pid	Process
5496	a1punf5t2of.exe
3828	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-1-5-21-3446877943-4095308722-756223633-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	36dd20d95fd9bf6ad32c3f80db33fc5710d3bcd23d9d3762b793e572b605b57d.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

defense_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 5496 set thread context of 3828	5496	a1punf5t2of.exe	103

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	36dd20d95fd9bf6ad32c3f80db33fc5710d3bcd23d9d3762b793e572b605b57d.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
3828	a1punf5t2of.exe
3828	a1punf5t2of.exe
3828	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3828	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3828	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 5432 wrote to memory of 5496	5432	36dd20d95fd9bf6ad32c3f80db33fc5710d3bcd23d9d3762b793e572b605b57d.exe	102
PID 5432 wrote to memory of 5496	5432	36dd20d95fd9bf6ad32c3f80db33fc5710d3bcd23d9d3762b793e572b605b57d.exe	102
PID 5432 wrote to memory of 5496	5432	36dd20d95fd9bf6ad32c3f80db33fc5710d3bcd23d9d3762b793e572b605b57d.exe	102
PID 5496 wrote to memory of 3828	5496	a1punf5t2of.exe	103
PID 5496 wrote to memory of 3828	5496	a1punf5t2of.exe	103
PID 5496 wrote to memory of 3828	5496	a1punf5t2of.exe	103
PID 5496 wrote to memory of 3828	5496	a1punf5t2of.exe	103
PID 5496 wrote to memory of 3828	5496	a1punf5t2of.exe	103
PID 5496 wrote to memory of 3828	5496	a1punf5t2of.exe	103
PID 5496 wrote to memory of 3828	5496	a1punf5t2of.exe	103
PID 5496 wrote to memory of 3828	5496	a1punf5t2of.exe	103

C:\Users\Admin\AppData\Local\Temp\36dd20d95fd9bf6ad32c3f80db33fc5710d3bcd23d9d3762b793e572b605b57d.exe
"C:\Users\Admin\AppData\Local\Temp\36dd20d95fd9bf6ad32c3f80db33fc5710d3bcd23d9d3762b793e572b605b57d.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5432
- 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:5496
- - 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:3828

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
c5707752c33a14d27cb79492bf451587

SHA1
b69220773a0972f67cb1155e4445142e06c4abc8

SHA256
56f3df4841de556391f31dcb65f19a05a7a96f8e6bf0f25b20741ffcd414ca88

SHA512
22ce1eeb80a727ae6a2ca6db109fae368a2d99bbdc46ea27806339698b493b242afb60d27b90d6dacb50a737924665d288c7d40f04643f657345265a902a7ea0

Download Submit
memory/3828-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3828-40-0x0000000074870000-0x0000000074E21000-memory.dmp

Filesize
5.7MB

Download
memory/3828-37-0x0000000074870000-0x0000000074E21000-memory.dmp

Filesize
5.7MB

Download
memory/3828-36-0x0000000074870000-0x0000000074E21000-memory.dmp

Filesize
5.7MB

Download
memory/3828-34-0x0000000074870000-0x0000000074E21000-memory.dmp

Filesize
5.7MB

Download
memory/3828-33-0x0000000074870000-0x0000000074E21000-memory.dmp

Filesize
5.7MB

Download
memory/3828-32-0x0000000074870000-0x0000000074E21000-memory.dmp

Filesize
5.7MB

Download
memory/3828-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3828-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/5432-6-0x0000000074870000-0x0000000074E21000-memory.dmp

Filesize
5.7MB

Download
memory/5432-4-0x0000000074872000-0x0000000074873000-memory.dmp

Filesize
4KB

Download
memory/5432-1-0x0000000074870000-0x0000000074E21000-memory.dmp

Filesize
5.7MB

Download
memory/5432-2-0x0000000074870000-0x0000000074E21000-memory.dmp

Filesize
5.7MB

Download
memory/5432-3-0x0000000074870000-0x0000000074E21000-memory.dmp

Filesize
5.7MB

Download
memory/5432-21-0x0000000074870000-0x0000000074E21000-memory.dmp

Filesize
5.7MB

Download
memory/5432-5-0x0000000074870000-0x0000000074E21000-memory.dmp

Filesize
5.7MB

Download
memory/5432-7-0x0000000074870000-0x0000000074E21000-memory.dmp

Filesize
5.7MB

Download
memory/5432-0-0x0000000074872000-0x0000000074873000-memory.dmp

Filesize
4KB

Download
memory/5496-22-0x0000000074870000-0x0000000074E21000-memory.dmp

Filesize
5.7MB

Download
memory/5496-23-0x0000000074870000-0x0000000074E21000-memory.dmp

Filesize
5.7MB

Download
memory/5496-26-0x0000000074870000-0x0000000074E21000-memory.dmp

Filesize
5.7MB

Download
memory/5496-25-0x0000000074870000-0x0000000074E21000-memory.dmp

Filesize
5.7MB

Download
memory/5496-39-0x0000000074870000-0x0000000074E21000-memory.dmp

Filesize
5.7MB

Download
memory/5496-24-0x0000000074870000-0x0000000074E21000-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