nanocore | 32592d0a4ec9b0fc03f0ec38cc9289634a075640e335a01f4c70b19f42b14729

General

Target

d0a9cd1821525f56ddd72540c92e7170N.exe
Size

280KB
MD5

d0a9cd1821525f56ddd72540c92e7170
SHA1

d43e00b1f8534a15b0e4ba375b9de2e33ab5cee7
SHA256

32592d0a4ec9b0fc03f0ec38cc9289634a075640e335a01f4c70b19f42b14729
SHA512

1fa0c5d4ff2bc532b9feab8ee4d8e1f1e0af2d4927eb348f6ee1d6adcb6443e33a22b67a9fd85372087350b563ae72b7826326df8273eacbc6ce8df3770fd138
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKK:boSeGUA5YZazpXUmZhZ6SK

Score

10^/10

nanocore 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

Executes dropped EXE 2 IoCs

pid	Process
2732	a1punf5t2of.exe
2300	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
2072	d0a9cd1821525f56ddd72540c92e7170N.exe
2732	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-1-5-21-2212144002-1172735686-1556890956-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	d0a9cd1821525f56ddd72540c92e7170N.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 2732 set thread context of 2300	2732	a1punf5t2of.exe	32

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2300	a1punf5t2of.exe
2300	a1punf5t2of.exe
2300	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2300	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2300	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2072 wrote to memory of 2732	2072	d0a9cd1821525f56ddd72540c92e7170N.exe	31
PID 2072 wrote to memory of 2732	2072	d0a9cd1821525f56ddd72540c92e7170N.exe	31
PID 2072 wrote to memory of 2732	2072	d0a9cd1821525f56ddd72540c92e7170N.exe	31
PID 2072 wrote to memory of 2732	2072	d0a9cd1821525f56ddd72540c92e7170N.exe	31
PID 2072 wrote to memory of 2732	2072	d0a9cd1821525f56ddd72540c92e7170N.exe	31
PID 2072 wrote to memory of 2732	2072	d0a9cd1821525f56ddd72540c92e7170N.exe	31
PID 2072 wrote to memory of 2732	2072	d0a9cd1821525f56ddd72540c92e7170N.exe	31
PID 2732 wrote to memory of 2300	2732	a1punf5t2of.exe	32
PID 2732 wrote to memory of 2300	2732	a1punf5t2of.exe	32
PID 2732 wrote to memory of 2300	2732	a1punf5t2of.exe	32
PID 2732 wrote to memory of 2300	2732	a1punf5t2of.exe	32
PID 2732 wrote to memory of 2300	2732	a1punf5t2of.exe	32
PID 2732 wrote to memory of 2300	2732	a1punf5t2of.exe	32
PID 2732 wrote to memory of 2300	2732	a1punf5t2of.exe	32
PID 2732 wrote to memory of 2300	2732	a1punf5t2of.exe	32
PID 2732 wrote to memory of 2300	2732	a1punf5t2of.exe	32
PID 2732 wrote to memory of 2300	2732	a1punf5t2of.exe	32
PID 2732 wrote to memory of 2300	2732	a1punf5t2of.exe	32
PID 2732 wrote to memory of 2300	2732	a1punf5t2of.exe	32

C:\Users\Admin\AppData\Local\Temp\d0a9cd1821525f56ddd72540c92e7170N.exe
"C:\Users\Admin\AppData\Local\Temp\d0a9cd1821525f56ddd72540c92e7170N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2072
- C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
  "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:2732
- - 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
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:2300

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

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
280KB

MD5
3ade207a4bf43b71f2653fc5d5b06d4f

SHA1
1a536e90398acb55cafc4bbe5806b2427423c693

SHA256
ee4bd84401e14c77cd2ad878bc5296c32a38928433f069bb2be3d374a0bc840a

SHA512
d174aabd1dc5de5c021ef25a8aebc22619180f927d283e9b5f75e1f5bc984cf443638d15bdcc153165c5f1b1028b25c75d7d3088546f03a4c98fc332267e74ef

Download Submit
memory/2072-0-0x0000000074251000-0x0000000074252000-memory.dmp

Filesize
4KB

Download
memory/2072-1-0x0000000074250000-0x00000000747FB000-memory.dmp

Filesize
5.7MB

Download
memory/2072-2-0x0000000074250000-0x00000000747FB000-memory.dmp

Filesize
5.7MB

Download
memory/2072-3-0x0000000074250000-0x00000000747FB000-memory.dmp

Filesize
5.7MB

Download
memory/2072-12-0x0000000074250000-0x00000000747FB000-memory.dmp

Filesize
5.7MB

Download
memory/2300-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2300-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2300-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2300-34-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2300-36-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2300-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2300-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2300-29-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2732-13-0x0000000074250000-0x00000000747FB000-memory.dmp

Filesize
5.7MB

Download
memory/2732-16-0x0000000074250000-0x00000000747FB000-memory.dmp

Filesize
5.7MB

Download
memory/2732-14-0x0000000074250000-0x00000000747FB000-memory.dmp

Filesize
5.7MB

Download
memory/2732-15-0x0000000074250000-0x00000000747FB000-memory.dmp

Filesize
5.7MB

Download
memory/2732-38-0x0000000074250000-0x00000000747FB000-memory.dmp

Filesize
5.7MB

Download
memory/2732-39-0x0000000074250000-0x00000000747FB000-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