nanocore | fcde661a96a6352ae04e5127c9d1844079dbd05980564cef93bdd96069fce8a0

General

Target
838273fec6d6ddf8b3e33063c233ea28.exe
Size 1.7MB
Sample201109-8v8rxql2mn
SHA256 fcde661a96a6352ae04e5127c9d1844079dbd05980564cef93bdd96069fce8a0
MD5 838273fec6d6ddf8b3e33063c233ea28
SHA1 794d78548e52138c37e6490af8861c3826237966
SHA512 4f684a8ffa5d9d60027a055c462fa5681f3026432f5614b89593eed5453f0b09b8f3954d43f56e42bb64f056d966cb7c2e5d7569ea46d189dd6cdd02dcf7022c
MD5 SHA1 SHA512

Score

10^/10

nanocore keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

u852117.nvpn.so:5638
comcasted.duckdns.org:5638

Mutex

c2752564-42a0-44a1-9f65-f38d35e9ab26

Attributes

activate_away_mode
true
backup_connection_host
comcasted.duckdns.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2019-12-31T14:52:32.548938136Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
5638
default_group
comcasted
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
c2752564-42a0-44a1-9f65-f38d35e9ab26
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
u852117.nvpn.so
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

Drops startup file 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\AppMon.url	838273fec6d6ddf8b3e33063c233ea28.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1756 set thread context of 1728	1756	838273fec6d6ddf8b3e33063c233ea28.exe	29

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1728	MSBuild.exe
1728	MSBuild.exe
1728	MSBuild.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1728	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1728	MSBuild.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
1756	838273fec6d6ddf8b3e33063c233ea28.exe
1756	838273fec6d6ddf8b3e33063c233ea28.exe
1756	838273fec6d6ddf8b3e33063c233ea28.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
1756	838273fec6d6ddf8b3e33063c233ea28.exe
1756	838273fec6d6ddf8b3e33063c233ea28.exe
1756	838273fec6d6ddf8b3e33063c233ea28.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1756 wrote to memory of 1728	1756	838273fec6d6ddf8b3e33063c233ea28.exe	29
PID 1756 wrote to memory of 1728	1756	838273fec6d6ddf8b3e33063c233ea28.exe	29
PID 1756 wrote to memory of 1728	1756	838273fec6d6ddf8b3e33063c233ea28.exe	29
PID 1756 wrote to memory of 1728	1756	838273fec6d6ddf8b3e33063c233ea28.exe	29
PID 1756 wrote to memory of 1728	1756	838273fec6d6ddf8b3e33063c233ea28.exe	29
PID 1756 wrote to memory of 1728	1756	838273fec6d6ddf8b3e33063c233ea28.exe	29

C:\Users\Admin\AppData\Local\Temp\838273fec6d6ddf8b3e33063c233ea28.exe
"C:\Users\Admin\AppData\Local\Temp\838273fec6d6ddf8b3e33063c233ea28.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1756
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
  "C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v2.0.50727\\\\MSBuild.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:1728

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1728-0-0x0000000000400000-0x0000000000438000-memory.dmp

Download

memory/1728-2-0x0000000000400000-0x0000000000438000-memory.dmp