nanocore | d0628dd7d19eb531e38d9ea04b6645df1d2d39a85ebd1706e6137436af75f9ea

General

Target

d0628dd7d19eb531e38d9ea04b6645df1d2d39a85ebd1706e6137436af75f9ea.exe
Size

255KB
MD5

7b6af039fd4c792cee393496d7ba9f2a
SHA1

294dfa0c44f515cfa160c6e0540f1bfe221a94e5
SHA256

d0628dd7d19eb531e38d9ea04b6645df1d2d39a85ebd1706e6137436af75f9ea
SHA512

e98265266282d68b9450f2380c47932aa069e898007a3e888a72401e27d1e2a56310cdc921559bcd6158ccd7b03881d0f9cc665b3bdf08e58d39bd67b579a0b9
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ+Kyd:EeGUA5YZazpXUmZhlKyd

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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	d0628dd7d19eb531e38d9ea04b6645df1d2d39a85ebd1706e6137436af75f9ea.exe

Executes dropped EXE 2 IoCs

pid	Process
728	a1punf5t2of.exe
1632	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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	d0628dd7d19eb531e38d9ea04b6645df1d2d39a85ebd1706e6137436af75f9ea.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 728 set thread context of 1632	728	a1punf5t2of.exe	97

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	d0628dd7d19eb531e38d9ea04b6645df1d2d39a85ebd1706e6137436af75f9ea.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
1632	a1punf5t2of.exe
1632	a1punf5t2of.exe
1632	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1632	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1632	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4996 wrote to memory of 728	4996	d0628dd7d19eb531e38d9ea04b6645df1d2d39a85ebd1706e6137436af75f9ea.exe	96
PID 4996 wrote to memory of 728	4996	d0628dd7d19eb531e38d9ea04b6645df1d2d39a85ebd1706e6137436af75f9ea.exe	96
PID 4996 wrote to memory of 728	4996	d0628dd7d19eb531e38d9ea04b6645df1d2d39a85ebd1706e6137436af75f9ea.exe	96
PID 728 wrote to memory of 1632	728	a1punf5t2of.exe	97
PID 728 wrote to memory of 1632	728	a1punf5t2of.exe	97
PID 728 wrote to memory of 1632	728	a1punf5t2of.exe	97
PID 728 wrote to memory of 1632	728	a1punf5t2of.exe	97
PID 728 wrote to memory of 1632	728	a1punf5t2of.exe	97
PID 728 wrote to memory of 1632	728	a1punf5t2of.exe	97
PID 728 wrote to memory of 1632	728	a1punf5t2of.exe	97
PID 728 wrote to memory of 1632	728	a1punf5t2of.exe	97

C:\Users\Admin\AppData\Local\Temp\d0628dd7d19eb531e38d9ea04b6645df1d2d39a85ebd1706e6137436af75f9ea.exe
"C:\Users\Admin\AppData\Local\Temp\d0628dd7d19eb531e38d9ea04b6645df1d2d39a85ebd1706e6137436af75f9ea.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4996
- 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:728
- - 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:1632

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
fe85aea0df28a36823e37770b5564827

SHA1
e6d7497900f2df0986a947d6f147dc92ce80cdd1

SHA256
7c63639c847ad5134d10e31194c8612e571795758da63cf32645f7c83bac47db

SHA512
9fb409b578c327a2dd5499e6d918d66d82e4d1cee70823c6c13ebccee73a7eb4a23122586ef7797bbfc42769f4a42dfe04f22703dba9e22fc461f35ad0c9e04a

Download Submit
memory/728-39-0x0000000074B60000-0x0000000075111000-memory.dmp

Filesize
5.7MB

Download
memory/728-26-0x0000000074B60000-0x0000000075111000-memory.dmp

Filesize
5.7MB

Download
memory/728-25-0x0000000074B60000-0x0000000075111000-memory.dmp

Filesize
5.7MB

Download
memory/728-24-0x0000000074B60000-0x0000000075111000-memory.dmp

Filesize
5.7MB

Download
memory/728-23-0x0000000074B60000-0x0000000075111000-memory.dmp

Filesize
5.7MB

Download
memory/728-21-0x0000000074B60000-0x0000000075111000-memory.dmp

Filesize
5.7MB

Download
memory/1632-32-0x0000000074B60000-0x0000000075111000-memory.dmp

Filesize
5.7MB

Download
memory/1632-34-0x0000000074B60000-0x0000000075111000-memory.dmp

Filesize
5.7MB

Download
memory/1632-40-0x0000000074B60000-0x0000000075111000-memory.dmp

Filesize
5.7MB

Download
memory/1632-37-0x0000000074B60000-0x0000000075111000-memory.dmp

Filesize
5.7MB

Download
memory/1632-36-0x0000000074B60000-0x0000000075111000-memory.dmp

Filesize
5.7MB

Download
memory/1632-33-0x0000000074B60000-0x0000000075111000-memory.dmp

Filesize
5.7MB

Download
memory/1632-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1632-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1632-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4996-2-0x0000000074B60000-0x0000000075111000-memory.dmp

Filesize
5.7MB

Download
memory/4996-3-0x0000000074B60000-0x0000000075111000-memory.dmp

Filesize
5.7MB

Download
memory/4996-0-0x0000000074B62000-0x0000000074B63000-memory.dmp

Filesize
4KB

Download
memory/4996-4-0x0000000074B62000-0x0000000074B63000-memory.dmp

Filesize
4KB

Download
memory/4996-7-0x0000000074B60000-0x0000000075111000-memory.dmp

Filesize
5.7MB

Download
memory/4996-22-0x0000000074B60000-0x0000000075111000-memory.dmp

Filesize
5.7MB

Download
memory/4996-5-0x0000000074B60000-0x0000000075111000-memory.dmp

Filesize
5.7MB

Download
memory/4996-1-0x0000000074B60000-0x0000000075111000-memory.dmp

Filesize
5.7MB

Download
memory/4996-6-0x0000000074B60000-0x0000000075111000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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