nanocore | 8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339

General

Target

8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.exe
Size

255KB
MD5

99818b30fad7b1cf91e8a7ffb6417630
SHA1

cd3a1c3d3c0233d023c8b3f0a6c04b7f0271c6ba
SHA256

8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339
SHA512

94ee4039ee97cdba52809556d17f2ec6b0facd1f51082f797b7522348b98520479cbb3c196da5944cbb42b0a8960ff7be66b4ef1724112a2e782203d2b54c873
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ+r:EeGUA5YZazpXUmZhlr

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

pid	Process
2664	a1punf5t2of.exe
2740	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
2844	8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.exe
2664	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-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.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 2664 set thread context of 2740	2664	a1punf5t2of.exe	31

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	8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.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
2740	a1punf5t2of.exe
2740	a1punf5t2of.exe
2740	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2740	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2740	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2844 wrote to memory of 2664	2844	8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.exe	30
PID 2844 wrote to memory of 2664	2844	8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.exe	30
PID 2844 wrote to memory of 2664	2844	8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.exe	30
PID 2844 wrote to memory of 2664	2844	8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.exe	30
PID 2844 wrote to memory of 2664	2844	8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.exe	30
PID 2844 wrote to memory of 2664	2844	8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.exe	30
PID 2844 wrote to memory of 2664	2844	8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.exe	30
PID 2664 wrote to memory of 2740	2664	a1punf5t2of.exe	31
PID 2664 wrote to memory of 2740	2664	a1punf5t2of.exe	31
PID 2664 wrote to memory of 2740	2664	a1punf5t2of.exe	31
PID 2664 wrote to memory of 2740	2664	a1punf5t2of.exe	31
PID 2664 wrote to memory of 2740	2664	a1punf5t2of.exe	31
PID 2664 wrote to memory of 2740	2664	a1punf5t2of.exe	31
PID 2664 wrote to memory of 2740	2664	a1punf5t2of.exe	31
PID 2664 wrote to memory of 2740	2664	a1punf5t2of.exe	31
PID 2664 wrote to memory of 2740	2664	a1punf5t2of.exe	31
PID 2664 wrote to memory of 2740	2664	a1punf5t2of.exe	31
PID 2664 wrote to memory of 2740	2664	a1punf5t2of.exe	31
PID 2664 wrote to memory of 2740	2664	a1punf5t2of.exe	31

C:\Users\Admin\AppData\Local\Temp\8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.exe
"C:\Users\Admin\AppData\Local\Temp\8c62ea1c8a275d9c558c2f8f2ef0d917a1007d86de7273025dd50249fa5e3339N.exe"
1⤵
- Loads dropped DLL
- 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
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2664
- - 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:2740

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
255KB

MD5
b1bd8be43738199c6bc362e51fa1ba3a

SHA1
23a59ed82d118d1571e68b6ef71b52d8c037aaff

SHA256
a700a7ff28dff65fcc081d85071786f5f47115c643836e862e7da339831ec900

SHA512
0d0c9ddf0ad9868adfa72439e6478b8384f2c094471ab42ca4a0943b557a10ef526d595c474914bd2dcdc08a9b8138b81065b5f72280bf875e5c150ed9a3da57

Download Submit
memory/2664-15-0x0000000074A40000-0x0000000074FEB000-memory.dmp

Filesize
5.7MB

Download
memory/2664-18-0x0000000074A40000-0x0000000074FEB000-memory.dmp

Filesize
5.7MB

Download
memory/2664-19-0x0000000074A40000-0x0000000074FEB000-memory.dmp

Filesize
5.7MB

Download
memory/2664-16-0x0000000074A40000-0x0000000074FEB000-memory.dmp

Filesize
5.7MB

Download
memory/2664-17-0x0000000074A40000-0x0000000074FEB000-memory.dmp

Filesize
5.7MB

Download
memory/2664-41-0x0000000074A40000-0x0000000074FEB000-memory.dmp

Filesize
5.7MB

Download
memory/2740-32-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2740-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2740-39-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2740-37-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2740-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2740-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2740-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2740-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2844-5-0x0000000074A40000-0x0000000074FEB000-memory.dmp

Filesize
5.7MB

Download
memory/2844-14-0x0000000074A40000-0x0000000074FEB000-memory.dmp

Filesize
5.7MB

Download
memory/2844-0-0x0000000074A41000-0x0000000074A42000-memory.dmp

Filesize
4KB

Download
memory/2844-4-0x0000000074A40000-0x0000000074FEB000-memory.dmp

Filesize
5.7MB

Download
memory/2844-3-0x0000000074A40000-0x0000000074FEB000-memory.dmp

Filesize
5.7MB

Download
memory/2844-2-0x0000000074A40000-0x0000000074FEB000-memory.dmp

Filesize
5.7MB

Download
memory/2844-1-0x0000000074A40000-0x0000000074FEB000-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