nanocore | a89004a781033451174d1f9cf2e9301492b184736949c50fcf1db1cf2df8a1ef

General

Target

a89004a781033451174d1f9cf2e9301492b184736949c50fcf1db1cf2df8a1efN.exe
Size

279KB
MD5

7d9db0be8847e1d23604e9583474a720
SHA1

e7c75d7c2ea6e201c6044c7ebe86a08188a76ba1
SHA256

a89004a781033451174d1f9cf2e9301492b184736949c50fcf1db1cf2df8a1ef
SHA512

adc93793cf7ca95df09b5ad26bcba03a364fac1e3e10cabbe5389d444ba13c421a2fc9795f7ceb9fdc8b9127205e6cbe3d70253b1f3fc78057349a3f1a993cd6
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fE:boSeGUA5YZazpXUmZhZ6s

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	a89004a781033451174d1f9cf2e9301492b184736949c50fcf1db1cf2df8a1efN.exe

Executes dropped EXE 2 IoCs

pid	Process
1580	a1punf5t2of.exe
3964	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"	a89004a781033451174d1f9cf2e9301492b184736949c50fcf1db1cf2df8a1efN.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 1580 set thread context of 3964	1580	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	a89004a781033451174d1f9cf2e9301492b184736949c50fcf1db1cf2df8a1efN.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3964	a1punf5t2of.exe
3964	a1punf5t2of.exe
3964	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3964	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3964	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3564 wrote to memory of 1580	3564	a89004a781033451174d1f9cf2e9301492b184736949c50fcf1db1cf2df8a1efN.exe	89
PID 3564 wrote to memory of 1580	3564	a89004a781033451174d1f9cf2e9301492b184736949c50fcf1db1cf2df8a1efN.exe	89
PID 3564 wrote to memory of 1580	3564	a89004a781033451174d1f9cf2e9301492b184736949c50fcf1db1cf2df8a1efN.exe	89
PID 1580 wrote to memory of 3964	1580	a1punf5t2of.exe	90
PID 1580 wrote to memory of 3964	1580	a1punf5t2of.exe	90
PID 1580 wrote to memory of 3964	1580	a1punf5t2of.exe	90
PID 1580 wrote to memory of 3964	1580	a1punf5t2of.exe	90
PID 1580 wrote to memory of 3964	1580	a1punf5t2of.exe	90
PID 1580 wrote to memory of 3964	1580	a1punf5t2of.exe	90
PID 1580 wrote to memory of 3964	1580	a1punf5t2of.exe	90
PID 1580 wrote to memory of 3964	1580	a1punf5t2of.exe	90

C:\Users\Admin\AppData\Local\Temp\a89004a781033451174d1f9cf2e9301492b184736949c50fcf1db1cf2df8a1efN.exe
"C:\Users\Admin\AppData\Local\Temp\a89004a781033451174d1f9cf2e9301492b184736949c50fcf1db1cf2df8a1efN.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3564
- 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:1580
- - 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:3964

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

Filesize
279KB

MD5
d7b11b8bb2c207ce4c2bba764831e0fb

SHA1
665469831228792019e109a10b6b459f45e31caa

SHA256
44c4a181960f4578b963203a8930247e4745e9468c7ca5e9ee3ba5cd09e3f1b5

SHA512
896b8a787f581afda01cd2868660e320694e453cc0d7081f534711fac0adae944a61967d3ad8a1f987584fce77aef70493c91fdc0740571ee7a695f8055d694c

Download Submit
memory/1580-39-0x0000000075180000-0x0000000075731000-memory.dmp

Filesize
5.7MB

Download
memory/1580-27-0x0000000075180000-0x0000000075731000-memory.dmp

Filesize
5.7MB

Download
memory/1580-26-0x0000000075180000-0x0000000075731000-memory.dmp

Filesize
5.7MB

Download
memory/1580-25-0x0000000075180000-0x0000000075731000-memory.dmp

Filesize
5.7MB

Download
memory/1580-24-0x0000000075180000-0x0000000075731000-memory.dmp

Filesize
5.7MB

Download
memory/1580-23-0x0000000075180000-0x0000000075731000-memory.dmp

Filesize
5.7MB

Download
memory/1580-21-0x0000000075180000-0x0000000075731000-memory.dmp

Filesize
5.7MB

Download
memory/3564-6-0x0000000075180000-0x0000000075731000-memory.dmp

Filesize
5.7MB

Download
memory/3564-7-0x0000000075180000-0x0000000075731000-memory.dmp

Filesize
5.7MB

Download
memory/3564-0-0x0000000075182000-0x0000000075183000-memory.dmp

Filesize
4KB

Download
memory/3564-22-0x0000000075180000-0x0000000075731000-memory.dmp

Filesize
5.7MB

Download
memory/3564-5-0x0000000075180000-0x0000000075731000-memory.dmp

Filesize
5.7MB

Download
memory/3564-4-0x0000000075182000-0x0000000075183000-memory.dmp

Filesize
4KB

Download
memory/3564-3-0x0000000075180000-0x0000000075731000-memory.dmp

Filesize
5.7MB

Download
memory/3564-2-0x0000000075180000-0x0000000075731000-memory.dmp

Filesize
5.7MB

Download
memory/3564-1-0x0000000075180000-0x0000000075731000-memory.dmp

Filesize
5.7MB

Download
memory/3964-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3964-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3964-33-0x0000000075180000-0x0000000075731000-memory.dmp

Filesize
5.7MB

Download
memory/3964-34-0x0000000075180000-0x0000000075731000-memory.dmp

Filesize
5.7MB

Download
memory/3964-36-0x0000000075180000-0x0000000075731000-memory.dmp

Filesize
5.7MB

Download
memory/3964-37-0x0000000075180000-0x0000000075731000-memory.dmp

Filesize
5.7MB

Download
memory/3964-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3964-40-0x0000000075180000-0x0000000075731000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads