nanocore | f61cb6448b00917c426f5b7220a17043f1d3f777550d495031605d31284b824a

Analysis

max time kernel
4294184s
max time network
152s
platform
windows7_x64
resource
win7-20220311-en
submitted
06/04/2022, 14:58

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General

Target
OBL.exe
Size 879KB
Sample220406-sb6c8aaghp
SHA256 f61cb6448b00917c426f5b7220a17043f1d3f777550d495031605d31284b824a
MD5 e5bdb55496c5058bef286b17f32c31e9
SHA1 7d2550e865942e129dee155e9d8c99eb2bb94748
SHA512 144365d589b887e877567dbc4bcbdce4b1147e2767b1b6dcfaefacdf47d484e594d98b22f2c52c7ff53ef236ee9c857529f461f7d7a9d09d4d1199e3f1927166
MD5 SHA1 SHA512

Score

10^/10

nanocore evasion keylogger spyware stealer suricata trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

brightnano2.ddns.net:1818
2.56.59.113:1818

Mutex

b2fe69e3-6598-4297-a076-f809c1c27fb0

Attributes

activate_away_mode
true
backup_connection_host
2.56.59.113
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-01-01T21:51:09.988347736Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1818
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
b2fe69e3-6598-4297-a076-f809c1c27fb0
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
brightnano2.ddns.net
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
suricata: ET MALWARE Possible NanoCore C2 60B
suricata: ET MALWARE Possible NanoCore C2 60B
suricata

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	OBL.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1968 set thread context of 1824	1968	OBL.exe	29

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
2044	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1824	OBL.exe
1824	OBL.exe
1824	OBL.exe
1824	OBL.exe
1824	OBL.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1824	OBL.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1824	OBL.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1968 wrote to memory of 1824	1968	OBL.exe	29
PID 1968 wrote to memory of 1824	1968	OBL.exe	29
PID 1968 wrote to memory of 1824	1968	OBL.exe	29
PID 1968 wrote to memory of 1824	1968	OBL.exe	29
PID 1968 wrote to memory of 1824	1968	OBL.exe	29
PID 1968 wrote to memory of 1824	1968	OBL.exe	29
PID 1968 wrote to memory of 1824	1968	OBL.exe	29
PID 1968 wrote to memory of 1824	1968	OBL.exe	29
PID 1968 wrote to memory of 1824	1968	OBL.exe	29
PID 1824 wrote to memory of 2044	1824	OBL.exe	30
PID 1824 wrote to memory of 2044	1824	OBL.exe	30
PID 1824 wrote to memory of 2044	1824	OBL.exe	30
PID 1824 wrote to memory of 2044	1824	OBL.exe	30

C:\Users\Admin\AppData\Local\Temp\OBL.exe
"C:\Users\Admin\AppData\Local\Temp\OBL.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1968
- C:\Users\Admin\AppData\Local\Temp\OBL.exe
  "C:\Users\Admin\AppData\Local\Temp\OBL.exe"
  2⤵
  - Checks whether UAC is enabled
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1824
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DDP Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmpE4F2.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:2044

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

tmpE4F2.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpE4F2.tmp
Size 1KB
SHA256 21bdacbd8ab8013785f72c445153b27a08a47b3179ed4c833bb8ccf22f37bad5
MD5 5f03fd3a7242e4e11fe27877bd1319e4
SHA1 64c766aae1fe324590b96c66f394d69ea4170805
SHA512 d8e2513cb04946f6abba43b5a39317da67a74289931093fb0d98090d43e1afa728fda44c7f6ed4174766ed616167404e4a45b7e6cbb7d7a951a6dd2855bf76b8
MD5 SHA1 SHA512

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memory/1824-72-0x00000000003E0000-0x00000000003EA000-memory.dmp

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memory/1824-82-0x0000000001290000-0x00000000012A0000-memory.dmp

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memory/1824-86-0x0000000001380000-0x0000000001394000-memory.dmp

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memory/1824-58-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1824-73-0x00000000005D0000-0x00000000005EE000-memory.dmp

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memory/1824-61-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1824-62-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1824-64-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1824-67-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1824-69-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1824-85-0x0000000001350000-0x000000000137E000-memory.dmp

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memory/1824-84-0x0000000001330000-0x000000000133E000-memory.dmp

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memory/1824-83-0x0000000001320000-0x0000000001334000-memory.dmp

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memory/1824-59-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1824-74-0x00000000003F0000-0x00000000003FA000-memory.dmp

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memory/1824-75-0x0000000000820000-0x0000000000832000-memory.dmp

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memory/1824-76-0x00000000009E0000-0x00000000009FA000-memory.dmp

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memory/1824-77-0x0000000000AC0000-0x0000000000ACE000-memory.dmp

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memory/1824-78-0x0000000000CA0000-0x0000000000CB2000-memory.dmp

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memory/1824-79-0x0000000001250000-0x000000000125E000-memory.dmp

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memory/1824-80-0x0000000001270000-0x000000000127C000-memory.dmp

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memory/1824-81-0x0000000001280000-0x0000000001294000-memory.dmp

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memory/1968-54-0x00000000013D0000-0x00000000014B2000-memory.dmp

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memory/1968-55-0x00000000009B0000-0x00000000009BC000-memory.dmp

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memory/1968-56-0x0000000005AB0000-0x0000000005B6E000-memory.dmp

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memory/1968-57-0x00000000052C0000-0x000000000533C000-memory.dmp

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