nanocore | 21961e6d4fc1ed6f67feb96ed1e0fea3f827a83f59179aa95914d1d0a20adf1f

General

Target

1be7bb31aca0e82bc7051e27743b47a0N.exe
Size

1.1MB
MD5

1be7bb31aca0e82bc7051e27743b47a0
SHA1

ffc6c138442e477a36e2226e09f33126144e5a74
SHA256

21961e6d4fc1ed6f67feb96ed1e0fea3f827a83f59179aa95914d1d0a20adf1f
SHA512

a158cf0684d34b0de00ed9b9d0b298b31f856944bec63169d4de972b76df457def741ebd6ec0405754d4662f3fec65fb56a4bb917099c817a082d54b60592482
SSDEEP

24576:1AHnh+eWsN3skA4RV1Hom2KXMmHahZB/Nep86f3YAm4W5x:kh+ZkldoPK8Yahb/NKKAm9x

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

160.202.163.242:6765

Mutex

c0a66e70-712e-4e13-85d0-5362a812b1a5

Attributes

activate_away_mode
true
backup_connection_host
160.202.163.242
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2019-02-24T16:03:16.653191036Z
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
6765
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
c0a66e70-712e-4e13-85d0-5362a812b1a5
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
160.202.163.242
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
false
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 created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\VsGraphicsDesktopEngine.lnk	1be7bb31aca0e82bc7051e27743b47a0N.exe

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\LAN Subsystem = "C:\\Program Files (x86)\\LAN Subsystem\\lanss.exe"	RegAsm.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	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2720 set thread context of 2752	2720	1be7bb31aca0e82bc7051e27743b47a0N.exe	31

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\LAN Subsystem\lanss.exe	RegAsm.exe
File opened for modification	C:\Program Files (x86)\LAN Subsystem\lanss.exe	RegAsm.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1be7bb31aca0e82bc7051e27743b47a0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
2628	schtasks.exe
3052	schtasks.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
2752	RegAsm.exe
2752	RegAsm.exe
2752	RegAsm.exe
2720	1be7bb31aca0e82bc7051e27743b47a0N.exe
2720	1be7bb31aca0e82bc7051e27743b47a0N.exe
2720	1be7bb31aca0e82bc7051e27743b47a0N.exe
2720	1be7bb31aca0e82bc7051e27743b47a0N.exe
2720	1be7bb31aca0e82bc7051e27743b47a0N.exe
2720	1be7bb31aca0e82bc7051e27743b47a0N.exe
2720	1be7bb31aca0e82bc7051e27743b47a0N.exe
2720	1be7bb31aca0e82bc7051e27743b47a0N.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2752	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2752	RegAsm.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2720	1be7bb31aca0e82bc7051e27743b47a0N.exe
2720	1be7bb31aca0e82bc7051e27743b47a0N.exe
2720	1be7bb31aca0e82bc7051e27743b47a0N.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
2720	1be7bb31aca0e82bc7051e27743b47a0N.exe
2720	1be7bb31aca0e82bc7051e27743b47a0N.exe
2720	1be7bb31aca0e82bc7051e27743b47a0N.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2720 wrote to memory of 2752	2720	1be7bb31aca0e82bc7051e27743b47a0N.exe	31
PID 2720 wrote to memory of 2752	2720	1be7bb31aca0e82bc7051e27743b47a0N.exe	31
PID 2720 wrote to memory of 2752	2720	1be7bb31aca0e82bc7051e27743b47a0N.exe	31
PID 2720 wrote to memory of 2752	2720	1be7bb31aca0e82bc7051e27743b47a0N.exe	31
PID 2720 wrote to memory of 2752	2720	1be7bb31aca0e82bc7051e27743b47a0N.exe	31
PID 2720 wrote to memory of 2752	2720	1be7bb31aca0e82bc7051e27743b47a0N.exe	31
PID 2720 wrote to memory of 2752	2720	1be7bb31aca0e82bc7051e27743b47a0N.exe	31
PID 2720 wrote to memory of 2752	2720	1be7bb31aca0e82bc7051e27743b47a0N.exe	31
PID 2720 wrote to memory of 2752	2720	1be7bb31aca0e82bc7051e27743b47a0N.exe	31
PID 2752 wrote to memory of 2628	2752	RegAsm.exe	32
PID 2752 wrote to memory of 2628	2752	RegAsm.exe	32
PID 2752 wrote to memory of 2628	2752	RegAsm.exe	32
PID 2752 wrote to memory of 2628	2752	RegAsm.exe	32
PID 2752 wrote to memory of 3052	2752	RegAsm.exe	34
PID 2752 wrote to memory of 3052	2752	RegAsm.exe	34
PID 2752 wrote to memory of 3052	2752	RegAsm.exe	34
PID 2752 wrote to memory of 3052	2752	RegAsm.exe	34

C:\Users\Admin\AppData\Local\Temp\1be7bb31aca0e82bc7051e27743b47a0N.exe
"C:\Users\Admin\AppData\Local\Temp\1be7bb31aca0e82bc7051e27743b47a0N.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2720
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  - 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:2752
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "LAN Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp35B.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2628
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "LAN Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp3E8.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3052

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp35B.tmp

Filesize
1KB

MD5
c6f0625bf4c1cdfb699980c9243d3b22

SHA1
43de1fe580576935516327f17b5da0c656c72851

SHA256
8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576

SHA512
9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp3E8.tmp

Filesize
1KB

MD5
924694e208642d4d8a4c7e0f0cba0de1

SHA1
87e9496a918036c3e3902f125b95a47e38548828

SHA256
8de0bab59a9fe15f312e81a373382ed992ce5110deb3813f663b92cfc5eae0b6

SHA512
ef3cfc08df53777f13fb51fdc0269f6f686c0df57c4dd72f395dc53d1d8ef2b08e33c3601507a45c3cc31a25b70ebf365d0fa93db64e1e851173216a45c49c2c

Download Submit
memory/2720-3-0x00000000002D0000-0x00000000002D1000-memory.dmp

Filesize
4KB

Download
memory/2752-12-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2752-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2752-9-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2752-5-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2752-4-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2752-13-0x00000000743C2000-0x00000000743C4000-memory.dmp

Filesize
8KB

Download
memory/2752-21-0x00000000743C2000-0x00000000743C4000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads