nanocore | 1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6

General

Target

1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe
Size

434KB
MD5

1ca4a0e2f74e5ffd751683f6afd1556e
SHA1

228e7c61d1f6963a1a6617d02c9e3d8705088d64
SHA256

1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6
SHA512

5de83b5f4823e6fcc6f0f297a43c581bbcb875ba9ad78afc2d45179dc1d7040725c612392113ae47fcbf8957891439f1247b92091f2efbc861b8fe2ab1d92819
SSDEEP

12288:nmJileuH/oPLDnoG3l+g9whD89s88C51/lX:Lee8FV+Gigs8H

Score

10^/10

nanocore discovery evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

37.0.10.137:9025

Mutex

b7d9d933-745d-49c1-bd0c-e06768b05c24

Attributes

activate_away_mode
true
backup_connection_host
37.0.10.137
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-08-01T05:05:17.189046036Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
9025
default_group
LYDECKER
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
b7d9d933-745d-49c1-bd0c-e06768b05c24
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
37.0.10.137
primary_dns_server
8.8.8.8
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	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.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	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3488 set thread context of 776	3488	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe	93

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	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1852	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
3488	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe
3488	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe
3488	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe
3488	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe
3488	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe
3488	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe
3488	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe
776	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe
776	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe
776	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
776	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3488	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe
Token: SeDebugPrivilege	776	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3488 wrote to memory of 1852	3488	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe	91
PID 3488 wrote to memory of 1852	3488	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe	91
PID 3488 wrote to memory of 1852	3488	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe	91
PID 3488 wrote to memory of 776	3488	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe	93
PID 3488 wrote to memory of 776	3488	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe	93
PID 3488 wrote to memory of 776	3488	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe	93
PID 3488 wrote to memory of 776	3488	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe	93
PID 3488 wrote to memory of 776	3488	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe	93
PID 3488 wrote to memory of 776	3488	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe	93
PID 3488 wrote to memory of 776	3488	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe	93
PID 3488 wrote to memory of 776	3488	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe	93

C:\Users\Admin\AppData\Local\Temp\1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe
"C:\Users\Admin\AppData\Local\Temp\1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3488
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AFUUjo" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5D2E.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1852
- C:\Users\Admin\AppData\Local\Temp\1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe
  "C:\Users\Admin\AppData\Local\Temp\1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe"
  2⤵
  - Checks whether UAC is enabled
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:776

Network

DNS

241.150.49.20.in-addr.arpa

Remote address:

8.8.8.8:53

Request

241.150.49.20.in-addr.arpa

IN PTR

Response
DNS

172.210.232.199.in-addr.arpa

Remote address:

8.8.8.8:53

Request

172.210.232.199.in-addr.arpa

IN PTR

Response
DNS

104.219.191.52.in-addr.arpa

Remote address:

8.8.8.8:53

Request

104.219.191.52.in-addr.arpa

IN PTR

Response
DNS

53.210.109.20.in-addr.arpa

Remote address:

8.8.8.8:53

Request

53.210.109.20.in-addr.arpa

IN PTR

Response
DNS

198.187.3.20.in-addr.arpa

Remote address:

8.8.8.8:53

Request

198.187.3.20.in-addr.arpa

IN PTR

Response
DNS

67.209.201.84.in-addr.arpa

Remote address:

8.8.8.8:53

Request

67.209.201.84.in-addr.arpa

IN PTR

Response
DNS

172.214.232.199.in-addr.arpa

Remote address:

8.8.8.8:53

Request

172.214.232.199.in-addr.arpa

IN PTR

Response
DNS

11.227.111.52.in-addr.arpa

Remote address:

8.8.8.8:53

Request

11.227.111.52.in-addr.arpa

IN PTR

Response

37.0.10.137:9025

1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe

208 B
4
37.0.10.137:9025

1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe

208 B
4
37.0.10.137:9025

1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe

208 B
4
37.0.10.137:9025

1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe

208 B
4
37.0.10.137:9025

1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe

208 B
4
37.0.10.137:9025

1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe

208 B
4

8.8.8.8:53

241.150.49.20.in-addr.arpa

dns

72 B
158 B
1
1

DNS Request

241.150.49.20.in-addr.arpa
8.8.8.8:53

172.210.232.199.in-addr.arpa

dns

74 B
128 B
1
1

DNS Request

172.210.232.199.in-addr.arpa
8.8.8.8:53

104.219.191.52.in-addr.arpa

dns

73 B
147 B
1
1

DNS Request

104.219.191.52.in-addr.arpa
8.8.8.8:53

53.210.109.20.in-addr.arpa

dns

72 B
158 B
1
1

DNS Request

53.210.109.20.in-addr.arpa
8.8.8.8:53

198.187.3.20.in-addr.arpa

dns

71 B
157 B
1
1

DNS Request

198.187.3.20.in-addr.arpa
8.8.8.8:53

67.209.201.84.in-addr.arpa

dns

72 B
132 B
1
1

DNS Request

67.209.201.84.in-addr.arpa
8.8.8.8:53

172.214.232.199.in-addr.arpa

dns

74 B
128 B
1
1

DNS Request

172.214.232.199.in-addr.arpa
8.8.8.8:53

11.227.111.52.in-addr.arpa

dns

72 B
158 B
1
1

DNS Request

11.227.111.52.in-addr.arpa

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

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

memory/776-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/776-26-0x0000000075390000-0x0000000075B40000-memory.dmp

Filesize
7.7MB

Download
memory/776-25-0x0000000075390000-0x0000000075B40000-memory.dmp

Filesize
7.7MB

Download
memory/776-24-0x0000000005480000-0x000000000548A000-memory.dmp

Filesize
40KB

Download
memory/776-23-0x0000000005440000-0x000000000545E000-memory.dmp

Filesize
120KB

Download
memory/776-22-0x00000000051F0000-0x00000000051FA000-memory.dmp

Filesize
40KB

Download
memory/776-20-0x0000000075390000-0x0000000075B40000-memory.dmp

Filesize
7.7MB

Download
memory/776-17-0x0000000075390000-0x0000000075B40000-memory.dmp

Filesize
7.7MB

Download
memory/3488-5-0x0000000075390000-0x0000000075B40000-memory.dmp

Filesize
7.7MB

Download
memory/3488-9-0x0000000008720000-0x00000000087BC000-memory.dmp

Filesize
624KB

Download
memory/3488-10-0x0000000008870000-0x00000000088CC000-memory.dmp

Filesize
368KB

Download
memory/3488-8-0x0000000075390000-0x0000000075B40000-memory.dmp

Filesize
7.7MB

Download
memory/3488-7-0x000000007539E000-0x000000007539F000-memory.dmp

Filesize
4KB

Download
memory/3488-19-0x0000000075390000-0x0000000075B40000-memory.dmp

Filesize
7.7MB

Download
memory/3488-6-0x0000000005CA0000-0x0000000005CAE000-memory.dmp

Filesize
56KB

Download
memory/3488-0-0x000000007539E000-0x000000007539F000-memory.dmp

Filesize
4KB

Download
memory/3488-4-0x0000000005A80000-0x0000000005A8A000-memory.dmp

Filesize
40KB

Download
memory/3488-3-0x00000000058D0000-0x0000000005962000-memory.dmp

Filesize
584KB

Download
memory/3488-2-0x0000000005DA0000-0x0000000006344000-memory.dmp

Filesize
5.6MB

Download
memory/3488-1-0x0000000000E70000-0x0000000000EE2000-memory.dmp

Filesize
456KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

DNS Request

MITRE ATT&CK Enterprise v15

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