nanocore | 64ce422b18dfaf9ca531f509ed4d05a47433e9ff468de8cfda06fb3bc85f80a4

General

Target
MIS.exe
Size 202KB
Sample241001-b66h2avdnq
SHA256 64ce422b18dfaf9ca531f509ed4d05a47433e9ff468de8cfda06fb3bc85f80a4
MD5 77a6bdfb5bbcb7946fe9b601afcc39e7
SHA1 f1d08b43eb1936922f4999b789f37b7124ec630c
SHA512 ac02ce92fb3c820b6b1e58be26762a6ba976a6a69523898df942a794cb4abb1dbc667454bc0aea7e9c597ee1ce05e4e6fb6bdb9a6b226a512c0d92f0fa59b9ba
SSDEEP 3072:QzEqV6B1jHa6dtJ10jgvzcgi+oG/j9iaMP2s/HIrccsD6RA5E3bKKiCf3e0kYrOd:QLV6Bta6dtJmakIM5Bcs8A5ELiUfoB
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Signatures

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WPA Subsystem = "C:\\Program Files (x86)\\WPA Subsystem\\wpass.exe"	MIS.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	MIS.exe

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\WPA Subsystem\wpass.exe	MIS.exe
File opened for modification	C:\Program Files (x86)\WPA Subsystem\wpass.exe	MIS.exe

System Location Discovery: System Language Discovery 1 TTPs 6 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	MIS.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	taskkill.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
1692	cmd.exe
3908	PING.EXE

Kills process with taskkill 1 IoCs

evasion

pid	Process
4164	taskkill.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3908	PING.EXE

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
3612	MIS.exe
3612	MIS.exe
3612	MIS.exe
3612	MIS.exe
3612	MIS.exe
3612	MIS.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3612	MIS.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3612	MIS.exe
Token: SeDebugPrivilege	3612	MIS.exe
Token: SeDebugPrivilege	4164	taskkill.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3612 wrote to memory of 880	3612	MIS.exe	89
PID 3612 wrote to memory of 880	3612	MIS.exe	89
PID 3612 wrote to memory of 880	3612	MIS.exe	89
PID 3612 wrote to memory of 4580	3612	MIS.exe	91
PID 3612 wrote to memory of 4580	3612	MIS.exe	91
PID 3612 wrote to memory of 4580	3612	MIS.exe	91
PID 3612 wrote to memory of 1692	3612	MIS.exe	93
PID 3612 wrote to memory of 1692	3612	MIS.exe	93
PID 3612 wrote to memory of 1692	3612	MIS.exe	93
PID 1692 wrote to memory of 4164	1692	cmd.exe	95
PID 1692 wrote to memory of 4164	1692	cmd.exe	95
PID 1692 wrote to memory of 4164	1692	cmd.exe	95
PID 1692 wrote to memory of 3908	1692	cmd.exe	96
PID 1692 wrote to memory of 3908	1692	cmd.exe	96
PID 1692 wrote to memory of 3908	1692	cmd.exe	96

C:\Users\Admin\AppData\Local\Temp\MIS.exe
"C:\Users\Admin\AppData\Local\Temp\MIS.exe"
1⤵
- Adds Run key to start application
- Checks whether UAC is enabled
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3612
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks.exe" /delete /f /tn "WPA Subsystem"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:880
- C:\Windows\SysWOW64\schtasks.exe
  "schtasks.exe" /delete /f /tn "WPA Subsystem Task"
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4580
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /C taskkill /f /im "MIS.exe" & ping -n 1 -w 3000 1.1.1.1 & type nul > "C:\Users\Admin\AppData\Local\Temp\MIS.exe" & del /f /q "C:\Users\Admin\AppData\Local\Temp\MIS.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:1692
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /f /im "MIS.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:4164
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 1 -w 3000 1.1.1.1
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:3908