nanocore | be045f260ad5d1db0ea0b250a2a8289229e7883d9c4aad024c643f3fce112d92

General

Target

be045f260ad5d1db0ea0b250a2a8289229e7883d9c4aad024c643f3fce112d92.exe
Size

279KB
MD5

b787bda97fa8cf69965437be3781e362
SHA1

431628b962e49a24f1dcf32f99012f210df08001
SHA256

be045f260ad5d1db0ea0b250a2a8289229e7883d9c4aad024c643f3fce112d92
SHA512

a00a1eacd68320971e861dc8bf98dcf16a2e0a1d0dad916eec0187501b694ec88de07b403b74f01e8f33a4d018cb1cbeb2a346a3bf72b98a0e82784948e6fc6b
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkfDa:boSeGUA5YZazpXUmZhZ6ST

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
1264	a1punf5t2of.exe
2532	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
848	be045f260ad5d1db0ea0b250a2a8289229e7883d9c4aad024c643f3fce112d92.exe
1264	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-1-5-21-1658372521-4246568289-2509113762-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	be045f260ad5d1db0ea0b250a2a8289229e7883d9c4aad024c643f3fce112d92.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 1264 set thread context of 2532	1264	a1punf5t2of.exe	29

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2532	a1punf5t2of.exe
2532	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2532	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2532	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 848 wrote to memory of 1264	848	be045f260ad5d1db0ea0b250a2a8289229e7883d9c4aad024c643f3fce112d92.exe	28
PID 848 wrote to memory of 1264	848	be045f260ad5d1db0ea0b250a2a8289229e7883d9c4aad024c643f3fce112d92.exe	28
PID 848 wrote to memory of 1264	848	be045f260ad5d1db0ea0b250a2a8289229e7883d9c4aad024c643f3fce112d92.exe	28
PID 848 wrote to memory of 1264	848	be045f260ad5d1db0ea0b250a2a8289229e7883d9c4aad024c643f3fce112d92.exe	28
PID 848 wrote to memory of 1264	848	be045f260ad5d1db0ea0b250a2a8289229e7883d9c4aad024c643f3fce112d92.exe	28
PID 848 wrote to memory of 1264	848	be045f260ad5d1db0ea0b250a2a8289229e7883d9c4aad024c643f3fce112d92.exe	28
PID 848 wrote to memory of 1264	848	be045f260ad5d1db0ea0b250a2a8289229e7883d9c4aad024c643f3fce112d92.exe	28
PID 1264 wrote to memory of 2532	1264	a1punf5t2of.exe	29
PID 1264 wrote to memory of 2532	1264	a1punf5t2of.exe	29
PID 1264 wrote to memory of 2532	1264	a1punf5t2of.exe	29
PID 1264 wrote to memory of 2532	1264	a1punf5t2of.exe	29
PID 1264 wrote to memory of 2532	1264	a1punf5t2of.exe	29
PID 1264 wrote to memory of 2532	1264	a1punf5t2of.exe	29
PID 1264 wrote to memory of 2532	1264	a1punf5t2of.exe	29
PID 1264 wrote to memory of 2532	1264	a1punf5t2of.exe	29
PID 1264 wrote to memory of 2532	1264	a1punf5t2of.exe	29
PID 1264 wrote to memory of 2532	1264	a1punf5t2of.exe	29
PID 1264 wrote to memory of 2532	1264	a1punf5t2of.exe	29
PID 1264 wrote to memory of 2532	1264	a1punf5t2of.exe	29

C:\Users\Admin\AppData\Local\Temp\be045f260ad5d1db0ea0b250a2a8289229e7883d9c4aad024c643f3fce112d92.exe
"C:\Users\Admin\AppData\Local\Temp\be045f260ad5d1db0ea0b250a2a8289229e7883d9c4aad024c643f3fce112d92.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:848
- 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:1264
- - 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:2532

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
279KB

MD5
f33a8bcda8051d8121b83bf4e83b5d3d

SHA1
2712b125d94846ddb0b5bbccfcaeec57c260ddfa

SHA256
6815214630134e9823ea89b848ba6102820e362f645a23dec9bfcf57b5ce077d

SHA512
916efc455cf6cc0320bfa6e6d3e015767c5b1aa1b233d1c5b703e7dfeb6597808f7ce8e869c39cf56c584cdac954049a95f1b490ff95cef065d0d4a470d68eb3

Download Submit
memory/848-12-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download
memory/848-2-0x00000000008F0000-0x0000000000930000-memory.dmp

Filesize
256KB

Download
memory/848-3-0x00000000008F0000-0x0000000000930000-memory.dmp

Filesize
256KB

Download
memory/848-1-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download
memory/848-13-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download
memory/848-0-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download
memory/1264-40-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download
memory/1264-14-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download
memory/1264-15-0x00000000004C0000-0x0000000000500000-memory.dmp

Filesize
256KB

Download
memory/1264-16-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download
memory/1264-17-0x00000000004C0000-0x0000000000500000-memory.dmp

Filesize
256KB

Download
memory/1264-42-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download
memory/1264-41-0x00000000004C0000-0x0000000000500000-memory.dmp

Filesize
256KB

Download
memory/2532-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2532-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2532-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2532-35-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2532-33-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2532-36-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download
memory/2532-37-0x00000000004A0000-0x00000000004E0000-memory.dmp

Filesize
256KB

Download
memory/2532-38-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download
memory/2532-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2532-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2532-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2532-43-0x00000000744E0000-0x0000000074A8B000-memory.dmp

Filesize
5.7MB

Download
memory/2532-44-0x00000000004A0000-0x00000000004E0000-memory.dmp

Filesize
256KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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