nanocore | cb5250c21d6629250b9813b96a9750f0fe7cf4ff4cb691e523c7ce6a593a4838

General

Target

cb5250c21d6629250b9813b96a9750f0fe7cf4ff4cb691e523c7ce6a593a4838N.exe
Size

282KB
MD5

5a96a56db7aad339fe1034a985924bc0
SHA1

9f20157c36836712319e280a281e1a8a81c76a9a
SHA256

cb5250c21d6629250b9813b96a9750f0fe7cf4ff4cb691e523c7ce6a593a4838
SHA512

56c3c73b3e6705ba31c664104d4251da301c6f485ca4d878828113090226924c513e75a3c792817a4046b76f60a709e9f6786646cf321bd35e62444d40105a98
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkfME:boSeGUA5YZazpXUmZhZ6SI

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
Executes dropped EXE 2 IoCs

Processes:

a1punf5t2of.exea1punf5t2of.exe

pid process

2896 a1punf5t2of.exe
1996 a1punf5t2of.exe
Loads dropped DLL 2 IoCs

Processes:

cb5250c21d6629250b9813b96a9750f0fe7cf4ff4cb691e523c7ce6a593a4838N.exea1punf5t2of.exe

pid process

2796 cb5250c21d6629250b9813b96a9750f0fe7cf4ff4cb691e523c7ce6a593a4838N.exe
2896 a1punf5t2of.exe

pid	process
2896	a1punf5t2of.exe
1996	a1punf5t2of.exe

pid	process
2796	cb5250c21d6629250b9813b96a9750f0fe7cf4ff4cb691e523c7ce6a593a4838N.exe
2896	a1punf5t2of.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

cb5250c21d6629250b9813b96a9750f0fe7cf4ff4cb691e523c7ce6a593a4838N.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	cb5250c21d6629250b9813b96a9750f0fe7cf4ff4cb691e523c7ce6a593a4838N.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

a1punf5t2of.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA a1punf5t2of.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

a1punf5t2of.exe

description pid process target process

PID 2896 set thread context of 1996 2896 a1punf5t2of.exe a1punf5t2of.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	a1punf5t2of.exe

description	pid	process	target process
PID 2896 set thread context of 1996	2896	a1punf5t2of.exe	a1punf5t2of.exe

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

Processes:

cb5250c21d6629250b9813b96a9750f0fe7cf4ff4cb691e523c7ce6a593a4838N.exea1punf5t2of.exea1punf5t2of.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cb5250c21d6629250b9813b96a9750f0fe7cf4ff4cb691e523c7ce6a593a4838N.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

Processes:

a1punf5t2of.exe

pid process

1996 a1punf5t2of.exe
1996 a1punf5t2of.exe
1996 a1punf5t2of.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

a1punf5t2of.exe

pid process

1996 a1punf5t2of.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

a1punf5t2of.exe

description pid process

Token: SeDebugPrivilege 1996 a1punf5t2of.exe

pid	process
1996	a1punf5t2of.exe
1996	a1punf5t2of.exe
1996	a1punf5t2of.exe

pid	process
1996	a1punf5t2of.exe

description	pid	process
Token: SeDebugPrivilege	1996	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

cb5250c21d6629250b9813b96a9750f0fe7cf4ff4cb691e523c7ce6a593a4838N.exea1punf5t2of.exe

description	pid	process	target process
PID 2796 wrote to memory of 2896	2796	cb5250c21d6629250b9813b96a9750f0fe7cf4ff4cb691e523c7ce6a593a4838N.exe	a1punf5t2of.exe
PID 2796 wrote to memory of 2896	2796	cb5250c21d6629250b9813b96a9750f0fe7cf4ff4cb691e523c7ce6a593a4838N.exe	a1punf5t2of.exe
PID 2796 wrote to memory of 2896	2796	cb5250c21d6629250b9813b96a9750f0fe7cf4ff4cb691e523c7ce6a593a4838N.exe	a1punf5t2of.exe
PID 2796 wrote to memory of 2896	2796	cb5250c21d6629250b9813b96a9750f0fe7cf4ff4cb691e523c7ce6a593a4838N.exe	a1punf5t2of.exe
PID 2796 wrote to memory of 2896	2796	cb5250c21d6629250b9813b96a9750f0fe7cf4ff4cb691e523c7ce6a593a4838N.exe	a1punf5t2of.exe
PID 2796 wrote to memory of 2896	2796	cb5250c21d6629250b9813b96a9750f0fe7cf4ff4cb691e523c7ce6a593a4838N.exe	a1punf5t2of.exe
PID 2796 wrote to memory of 2896	2796	cb5250c21d6629250b9813b96a9750f0fe7cf4ff4cb691e523c7ce6a593a4838N.exe	a1punf5t2of.exe
PID 2896 wrote to memory of 1996	2896	a1punf5t2of.exe	a1punf5t2of.exe
PID 2896 wrote to memory of 1996	2896	a1punf5t2of.exe	a1punf5t2of.exe
PID 2896 wrote to memory of 1996	2896	a1punf5t2of.exe	a1punf5t2of.exe
PID 2896 wrote to memory of 1996	2896	a1punf5t2of.exe	a1punf5t2of.exe
PID 2896 wrote to memory of 1996	2896	a1punf5t2of.exe	a1punf5t2of.exe
PID 2896 wrote to memory of 1996	2896	a1punf5t2of.exe	a1punf5t2of.exe
PID 2896 wrote to memory of 1996	2896	a1punf5t2of.exe	a1punf5t2of.exe
PID 2896 wrote to memory of 1996	2896	a1punf5t2of.exe	a1punf5t2of.exe
PID 2896 wrote to memory of 1996	2896	a1punf5t2of.exe	a1punf5t2of.exe
PID 2896 wrote to memory of 1996	2896	a1punf5t2of.exe	a1punf5t2of.exe
PID 2896 wrote to memory of 1996	2896	a1punf5t2of.exe	a1punf5t2of.exe
PID 2896 wrote to memory of 1996	2896	a1punf5t2of.exe	a1punf5t2of.exe

C:\Users\Admin\AppData\Local\Temp\cb5250c21d6629250b9813b96a9750f0fe7cf4ff4cb691e523c7ce6a593a4838N.exe
"C:\Users\Admin\AppData\Local\Temp\cb5250c21d6629250b9813b96a9750f0fe7cf4ff4cb691e523c7ce6a593a4838N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2796
- 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
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2896
- - 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:1996

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
282KB

MD5
153080957d3775f42ca0d20e3c87bcd2

SHA1
281344ebbb462e772d0c5ea4038de3efa2767cf3

SHA256
6462a2ad192a250ea05057ebdd0d93dda7df8d49ea3e2dbd7f1f19e0d2d5d6de

SHA512
2151500836cfef61c9e3243d72c576d44379919929b833b1e78ae43949f84aca6ccee319435df7c3852064a953c3b90af982b2fab413571c7169e5b6f56fbf4c

Download Submit
memory/1996-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1996-39-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1996-38-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1996-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1996-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1996-32-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1996-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1996-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2796-6-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/2796-0-0x0000000074C01000-0x0000000074C02000-memory.dmp

Filesize
4KB

Download
memory/2796-1-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/2796-2-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/2796-3-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/2796-4-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/2796-18-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/2796-5-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/2896-20-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/2896-15-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/2896-21-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/2896-19-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/2896-16-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/2896-17-0x0000000074C00000-0x00000000751AB000-memory.dmp

Filesize
5.7MB

Download
memory/2896-41-0x0000000074C00000-0x00000000751AB000-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