nanocore | a0653e5a1da3e5c09f50b54463e54971ad2977ae7641dbd2878ae54113b5516b

General

Target

a0653e5a1da3e5c09f50b54463e54971ad2977ae7641dbd2878ae54113b5516bN.exe
Size

280KB
MD5

3f82bab43b9b193ca90b031eb2f4f280
SHA1

5d99c72d714b86d56dfcf5ac6c4d22fad35f2ba7
SHA256

a0653e5a1da3e5c09f50b54463e54971ad2977ae7641dbd2878ae54113b5516b
SHA512

56dd98c1084e8da31fbd4b5848986fc3402ccfe5b578968f9612a3ef9ecfc9dd774968f35eb13eba3b518a10db6f04cc12f8e521aae8a5b0beaa821a7f2ca4ad
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fB:boSeGUA5YZazpXUmZhZ6J

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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	a0653e5a1da3e5c09f50b54463e54971ad2977ae7641dbd2878ae54113b5516bN.exe

Executes dropped EXE 2 IoCs

pid	Process
184	a1punf5t2of.exe
1952	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"	a0653e5a1da3e5c09f50b54463e54971ad2977ae7641dbd2878ae54113b5516bN.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 184 set thread context of 1952	184	a1punf5t2of.exe	92

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	a0653e5a1da3e5c09f50b54463e54971ad2977ae7641dbd2878ae54113b5516bN.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
1952	a1punf5t2of.exe
1952	a1punf5t2of.exe
1952	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1952	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1952	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2844 wrote to memory of 184	2844	a0653e5a1da3e5c09f50b54463e54971ad2977ae7641dbd2878ae54113b5516bN.exe	91
PID 2844 wrote to memory of 184	2844	a0653e5a1da3e5c09f50b54463e54971ad2977ae7641dbd2878ae54113b5516bN.exe	91
PID 2844 wrote to memory of 184	2844	a0653e5a1da3e5c09f50b54463e54971ad2977ae7641dbd2878ae54113b5516bN.exe	91
PID 184 wrote to memory of 1952	184	a1punf5t2of.exe	92
PID 184 wrote to memory of 1952	184	a1punf5t2of.exe	92
PID 184 wrote to memory of 1952	184	a1punf5t2of.exe	92
PID 184 wrote to memory of 1952	184	a1punf5t2of.exe	92
PID 184 wrote to memory of 1952	184	a1punf5t2of.exe	92
PID 184 wrote to memory of 1952	184	a1punf5t2of.exe	92
PID 184 wrote to memory of 1952	184	a1punf5t2of.exe	92
PID 184 wrote to memory of 1952	184	a1punf5t2of.exe	92

C:\Users\Admin\AppData\Local\Temp\a0653e5a1da3e5c09f50b54463e54971ad2977ae7641dbd2878ae54113b5516bN.exe
"C:\Users\Admin\AppData\Local\Temp\a0653e5a1da3e5c09f50b54463e54971ad2977ae7641dbd2878ae54113b5516bN.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2844
- 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:184
- - 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:1952

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
280KB

MD5
ca1b563bc0cf0057b51fc2e18a2f65ac

SHA1
083543d8d1f68715f71573ad1711b40035757dc5

SHA256
bbc9d0954756b34e09e400d01ee8f41bd6089c9910a14829c0d4af0ed8a54dc2

SHA512
0be98a4a85d73b724ef21faba6bd89c3ab860586fc16143c46cd3909a8736d95eaed0b6b3a9e15ccace1ab7dc2fe4c52b7dca2a48f4382a999ae9a1dd68f4213

Download Submit
memory/184-41-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download
memory/184-27-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download
memory/184-26-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download
memory/184-25-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download
memory/184-24-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download
memory/184-23-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download
memory/184-22-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download
memory/1952-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1952-36-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download
memory/1952-42-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download
memory/1952-39-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download
memory/1952-38-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download
memory/1952-37-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download
memory/1952-34-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download
memory/1952-33-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download
memory/1952-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1952-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2844-0-0x00000000747D2000-0x00000000747D3000-memory.dmp

Filesize
4KB

Download
memory/2844-2-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download
memory/2844-3-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download
memory/2844-7-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download
memory/2844-4-0x00000000747D2000-0x00000000747D3000-memory.dmp

Filesize
4KB

Download
memory/2844-5-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download
memory/2844-21-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download
memory/2844-1-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download
memory/2844-6-0x00000000747D0000-0x0000000074D81000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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