nanocore | 0971ed841b73f240346a0aac75acc3dd3ef1345420fba81b00b79366a2c8d6ce

Analysis

max time kernel
149s
max time network
164s
platform
windows10_x64
resource
win10v20210410
submitted
27/07/2021, 15:30

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General

Target
820869d6bf485c32fd94fde70838b453.exe
Size 613KB
Sample210727-trd4ds7m7j
SHA256 0971ed841b73f240346a0aac75acc3dd3ef1345420fba81b00b79366a2c8d6ce
MD5 820869d6bf485c32fd94fde70838b453
SHA1 c387acae1c90dbfe7f5008516adcb510d2504ef0
SHA512 2bc46ae8577540cc329d8f08eb1d5db180c1f8aeee9f0bdb2188426f71fda0411be946bde557c0f8b26601cd1b1a7ddd149fd10425912e38ecfed569bd27d394
MD5 SHA1 SHA512

Score

10^/10

nanocore evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

asweee.jumpingcrab.com:8234
tryweaswweee.ydns.eu:8234

Mutex

0bb207a5-6f92-4ff1-abb5-35e0dc25fe5d

Attributes

activate_away_mode
true
backup_connection_host
tryweaswweee.ydns.eu
backup_dns_server
tryweaswweee.ydns.eu
buffer_size
65535
build_time
2021-05-02T14:48:34.703881636Z
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
8234
default_group
AUGUST
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
0bb207a5-6f92-4ff1-abb5-35e0dc25fe5d
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
asweee.jumpingcrab.com
primary_dns_server
asweee.jumpingcrab.com
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	820869d6bf485c32fd94fde70838b453.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3944 set thread context of 1312	3944	820869d6bf485c32fd94fde70838b453.exe	79

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
4092	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
3944	820869d6bf485c32fd94fde70838b453.exe
3944	820869d6bf485c32fd94fde70838b453.exe
1312	820869d6bf485c32fd94fde70838b453.exe
1312	820869d6bf485c32fd94fde70838b453.exe
1312	820869d6bf485c32fd94fde70838b453.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1312	820869d6bf485c32fd94fde70838b453.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3944	820869d6bf485c32fd94fde70838b453.exe
Token: SeDebugPrivilege	1312	820869d6bf485c32fd94fde70838b453.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3944 wrote to memory of 1312	3944	820869d6bf485c32fd94fde70838b453.exe	79
PID 3944 wrote to memory of 1312	3944	820869d6bf485c32fd94fde70838b453.exe	79
PID 3944 wrote to memory of 1312	3944	820869d6bf485c32fd94fde70838b453.exe	79
PID 3944 wrote to memory of 1312	3944	820869d6bf485c32fd94fde70838b453.exe	79
PID 3944 wrote to memory of 1312	3944	820869d6bf485c32fd94fde70838b453.exe	79
PID 3944 wrote to memory of 1312	3944	820869d6bf485c32fd94fde70838b453.exe	79
PID 3944 wrote to memory of 1312	3944	820869d6bf485c32fd94fde70838b453.exe	79
PID 3944 wrote to memory of 1312	3944	820869d6bf485c32fd94fde70838b453.exe	79
PID 1312 wrote to memory of 4092	1312	820869d6bf485c32fd94fde70838b453.exe	80
PID 1312 wrote to memory of 4092	1312	820869d6bf485c32fd94fde70838b453.exe	80
PID 1312 wrote to memory of 4092	1312	820869d6bf485c32fd94fde70838b453.exe	80

C:\Users\Admin\AppData\Local\Temp\820869d6bf485c32fd94fde70838b453.exe
"C:\Users\Admin\AppData\Local\Temp\820869d6bf485c32fd94fde70838b453.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3944
- C:\Users\Admin\AppData\Local\Temp\820869d6bf485c32fd94fde70838b453.exe
  C:\Users\Admin\AppData\Local\Temp\820869d6bf485c32fd94fde70838b453.exe
  2⤵
  - Checks whether UAC is enabled
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1312
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "ISS Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1DCA.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:4092

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

Replay Monitor

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Downloads

memory/1312-129-0x0000000000400000-0x0000000000438000-memory.dmp

Download

memory/1312-143-0x0000000004E50000-0x000000000534E000-memory.dmp

Download

memory/1312-142-0x00000000052E0000-0x00000000052E3000-memory.dmp

Download

memory/1312-141-0x00000000052C0000-0x00000000052D9000-memory.dmp

Download

memory/1312-140-0x0000000005110000-0x0000000005115000-memory.dmp

Download

memory/1312-136-0x0000000004EF0000-0x0000000004EF1000-memory.dmp

Download

memory/3944-122-0x00000000052D0000-0x0000000005362000-memory.dmp

Download

memory/3944-114-0x0000000000A90000-0x0000000000A91000-memory.dmp

Download

memory/3944-128-0x0000000006FB0000-0x000000000702C000-memory.dmp

Download

memory/3944-117-0x0000000005380000-0x0000000005381000-memory.dmp

Download

memory/3944-123-0x0000000006D80000-0x0000000006DEB000-memory.dmp

Download

memory/3944-116-0x0000000005880000-0x0000000005881000-memory.dmp

Download

memory/3944-118-0x0000000005360000-0x0000000005361000-memory.dmp

Download

memory/3944-121-0x00000000052D0000-0x0000000005362000-memory.dmp

Download

memory/3944-120-0x00000000052D0000-0x0000000005362000-memory.dmp

Download

memory/3944-119-0x00000000052D0000-0x0000000005362000-memory.dmp

Download