nanocore | 3d8811d64e17d5ea06d0edae6163b90b2400d06d9afa60ae689d6fe9232bca86

Analysis

max time kernel
149s
max time network
153s
platform
windows10_x64
resource
win10v20210410
submitted
26/05/2021, 16:59

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General

Target
81fbda3909166d5283aa85295b8c3394.exe
Size 988KB
Sample210526-1yncjmdjzs
SHA256 3d8811d64e17d5ea06d0edae6163b90b2400d06d9afa60ae689d6fe9232bca86
MD5 81fbda3909166d5283aa85295b8c3394
SHA1 faaaabf7023eaeea3a41e81a926f06dc5ce7f4b1
SHA512 6116443f6706363b08e0b1c0947575a94de23b3c93227c9433511ab4c8c73b987b2c8c6500907c9d1439e39931395a3732b0f24e107b55945977a6c5a4c63160
MD5 SHA1 SHA512

Score

10^/10

nanocore evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

antony2ok.duckdns.org:8894

Mutex

85990d32-5664-4693-af9c-c906587d1f66

Attributes

activate_away_mode
true
backup_connection_host
antony2ok.duckdns.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-02-12T19:23:13.208805936Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
8894
default_group
antony2ok
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
85990d32-5664-4693-af9c-c906587d1f66
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
antony2ok.duckdns.org
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

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	81fbda3909166d5283aa85295b8c3394.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3744 set thread context of 804	3744	81fbda3909166d5283aa85295b8c3394.exe	82

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task

T1053

pid	Process
2268	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3744	81fbda3909166d5283aa85295b8c3394.exe
3744	81fbda3909166d5283aa85295b8c3394.exe
3744	81fbda3909166d5283aa85295b8c3394.exe
804	81fbda3909166d5283aa85295b8c3394.exe
804	81fbda3909166d5283aa85295b8c3394.exe
804	81fbda3909166d5283aa85295b8c3394.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
804	81fbda3909166d5283aa85295b8c3394.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3744	81fbda3909166d5283aa85295b8c3394.exe
Token: SeDebugPrivilege	804	81fbda3909166d5283aa85295b8c3394.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3744 wrote to memory of 2268	3744	81fbda3909166d5283aa85295b8c3394.exe	79
PID 3744 wrote to memory of 2268	3744	81fbda3909166d5283aa85295b8c3394.exe	79
PID 3744 wrote to memory of 2268	3744	81fbda3909166d5283aa85295b8c3394.exe	79
PID 3744 wrote to memory of 1296	3744	81fbda3909166d5283aa85295b8c3394.exe	81
PID 3744 wrote to memory of 1296	3744	81fbda3909166d5283aa85295b8c3394.exe	81
PID 3744 wrote to memory of 1296	3744	81fbda3909166d5283aa85295b8c3394.exe	81
PID 3744 wrote to memory of 804	3744	81fbda3909166d5283aa85295b8c3394.exe	82
PID 3744 wrote to memory of 804	3744	81fbda3909166d5283aa85295b8c3394.exe	82
PID 3744 wrote to memory of 804	3744	81fbda3909166d5283aa85295b8c3394.exe	82
PID 3744 wrote to memory of 804	3744	81fbda3909166d5283aa85295b8c3394.exe	82
PID 3744 wrote to memory of 804	3744	81fbda3909166d5283aa85295b8c3394.exe	82
PID 3744 wrote to memory of 804	3744	81fbda3909166d5283aa85295b8c3394.exe	82
PID 3744 wrote to memory of 804	3744	81fbda3909166d5283aa85295b8c3394.exe	82
PID 3744 wrote to memory of 804	3744	81fbda3909166d5283aa85295b8c3394.exe	82

C:\Users\Admin\AppData\Local\Temp\81fbda3909166d5283aa85295b8c3394.exe
"C:\Users\Admin\AppData\Local\Temp\81fbda3909166d5283aa85295b8c3394.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3744
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nPTiXObYoZvGj" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE715.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:2268
- C:\Users\Admin\AppData\Local\Temp\81fbda3909166d5283aa85295b8c3394.exe
  "C:\Users\Admin\AppData\Local\Temp\81fbda3909166d5283aa85295b8c3394.exe"
  2⤵
  PID:1296
- C:\Users\Admin\AppData\Local\Temp\81fbda3909166d5283aa85295b8c3394.exe
  "C:\Users\Admin\AppData\Local\Temp\81fbda3909166d5283aa85295b8c3394.exe"
  2⤵
  - Checks whether UAC is enabled
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:804

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/804-139-0x0000000005E40000-0x0000000005E43000-memory.dmp

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memory/804-138-0x0000000005600000-0x0000000005619000-memory.dmp

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memory/804-137-0x00000000055F0000-0x00000000055F5000-memory.dmp

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memory/804-136-0x0000000005290000-0x000000000578E000-memory.dmp

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memory/804-127-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/3744-119-0x0000000005120000-0x0000000005121000-memory.dmp

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memory/3744-124-0x0000000008470000-0x00000000084AD000-memory.dmp

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memory/3744-123-0x0000000005F30000-0x0000000005FB4000-memory.dmp

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memory/3744-122-0x0000000005220000-0x000000000571E000-memory.dmp

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memory/3744-121-0x0000000005140000-0x0000000005144000-memory.dmp

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memory/3744-120-0x0000000005400000-0x0000000005401000-memory.dmp

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memory/3744-114-0x0000000000810000-0x0000000000811000-memory.dmp

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memory/3744-118-0x0000000005220000-0x0000000005221000-memory.dmp

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memory/3744-117-0x0000000005720000-0x0000000005721000-memory.dmp

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memory/3744-116-0x0000000005180000-0x0000000005181000-memory.dmp

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