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-1-5-21-4089630652-1596403869-279772308-1000\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 2228 set thread context of 1348	2228	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
2344	schtasks.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
2228	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe
2228	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe
2228	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe
2228	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe
2228	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe
2228	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe
2228	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe
1348	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe
1348	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe
1348	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1348	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2228	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe
Token: SeDebugPrivilege	1348	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2228 wrote to memory of 2344	2228	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe	91
PID 2228 wrote to memory of 2344	2228	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe	91
PID 2228 wrote to memory of 2344	2228	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe	91
PID 2228 wrote to memory of 1348	2228	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe	93
PID 2228 wrote to memory of 1348	2228	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe	93
PID 2228 wrote to memory of 1348	2228	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe	93
PID 2228 wrote to memory of 1348	2228	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe	93
PID 2228 wrote to memory of 1348	2228	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe	93
PID 2228 wrote to memory of 1348	2228	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe	93
PID 2228 wrote to memory of 1348	2228	1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe	93
PID 2228 wrote to memory of 1348	2228	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:2228
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AFUUjo" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4958.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2344
- 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:1348

Network

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

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\1f0c4b2bfc1d9dc27b3624894740779c748988c8134c7e455706d5a0a8d1c0a6.exe.log

Filesize
1KB

MD5
8ec831f3e3a3f77e4a7b9cd32b48384c

SHA1
d83f09fd87c5bd86e045873c231c14836e76a05c

SHA256
7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

SHA512
26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

Download Submit
memory/1348-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1348-27-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/1348-26-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/1348-25-0x0000000005780000-0x000000000578A000-memory.dmp

Filesize
40KB

Download
memory/1348-24-0x0000000005980000-0x000000000599E000-memory.dmp

Filesize
120KB

Download
memory/1348-23-0x0000000005730000-0x000000000573A000-memory.dmp

Filesize
40KB

Download
memory/1348-21-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/1348-19-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/2228-10-0x0000000008070000-0x00000000080CC000-memory.dmp

Filesize
368KB

Download
memory/2228-0-0x0000000074C4E000-0x0000000074C4F000-memory.dmp

Filesize
4KB

Download
memory/2228-9-0x0000000007F20000-0x0000000007FBC000-memory.dmp

Filesize
624KB

Download
memory/2228-8-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/2228-7-0x0000000074C4E000-0x0000000074C4F000-memory.dmp

Filesize
4KB

Download
memory/2228-6-0x0000000005280000-0x000000000528E000-memory.dmp

Filesize
56KB

Download
memory/2228-20-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/2228-5-0x0000000074C40000-0x00000000753F0000-memory.dmp

Filesize
7.7MB

Download
memory/2228-4-0x0000000004FD0000-0x0000000004FDA000-memory.dmp

Filesize
40KB

Download
memory/2228-3-0x0000000005020000-0x00000000050B2000-memory.dmp

Filesize
584KB

Download
memory/2228-2-0x0000000005710000-0x0000000005CB4000-memory.dmp

Filesize
5.6MB

Download
memory/2228-1-0x0000000000560000-0x00000000005D2000-memory.dmp

Filesize
456KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads