nanocore | d2039763d6eb11671141b1bc61d2efb0ecb1f0d2b623cb611771ea36664b185a

General

Target

cfa7e39b168a5def4bb34afc84685620N.exe
Size

1.2MB
MD5

cfa7e39b168a5def4bb34afc84685620
SHA1

112bbad5d32f591273cd243a346b2dd0d2999cf0
SHA256

d2039763d6eb11671141b1bc61d2efb0ecb1f0d2b623cb611771ea36664b185a
SHA512

c28f7d7f98075f022b51081762fadad2a1a4f92837c71b7cf7eb020a994778cb71ab7d99c59b15b64e27a636af3e7addb135dbec5c714ca8eb2fda660db132de
SSDEEP

24576:XAHnh+eWsN3skA4RV1Hom2KXMmHatoI3fr6j2/2+n/a5o:Kh+ZkldoPK8YatoMYo

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

213.184.126.143:1993

Mutex

023e0719-23ff-48a0-a14a-16f92fea10e1

Attributes

activate_away_mode
true
backup_connection_host
213.184.126.143
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2019-01-21T14:43:07.916268436Z
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
1993
default_group
isreal
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
023e0719-23ff-48a0-a14a-16f92fea10e1
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
213.184.126.143
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\PasswordOnWakeSettingFlyout.url	cfa7e39b168a5def4bb34afc84685620N.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\DDP Service = "C:\\Program Files (x86)\\DDP Service\\ddpsvc.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 3092 set thread context of 5068	3092	cfa7e39b168a5def4bb34afc84685620N.exe	102

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\DDP Service\ddpsvc.exe	RegAsm.exe
File opened for modification	C:\Program Files (x86)\DDP Service\ddpsvc.exe	RegAsm.exe

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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cfa7e39b168a5def4bb34afc84685620N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.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
4480	schtasks.exe
1488	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
5068	RegAsm.exe
5068	RegAsm.exe
5068	RegAsm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
5068	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5068	RegAsm.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
3092	cfa7e39b168a5def4bb34afc84685620N.exe
3092	cfa7e39b168a5def4bb34afc84685620N.exe
3092	cfa7e39b168a5def4bb34afc84685620N.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
3092	cfa7e39b168a5def4bb34afc84685620N.exe
3092	cfa7e39b168a5def4bb34afc84685620N.exe
3092	cfa7e39b168a5def4bb34afc84685620N.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3092 wrote to memory of 5068	3092	cfa7e39b168a5def4bb34afc84685620N.exe	102
PID 3092 wrote to memory of 5068	3092	cfa7e39b168a5def4bb34afc84685620N.exe	102
PID 3092 wrote to memory of 5068	3092	cfa7e39b168a5def4bb34afc84685620N.exe	102
PID 3092 wrote to memory of 5068	3092	cfa7e39b168a5def4bb34afc84685620N.exe	102
PID 3092 wrote to memory of 5068	3092	cfa7e39b168a5def4bb34afc84685620N.exe	102
PID 5068 wrote to memory of 4480	5068	RegAsm.exe	103
PID 5068 wrote to memory of 4480	5068	RegAsm.exe	103
PID 5068 wrote to memory of 4480	5068	RegAsm.exe	103
PID 5068 wrote to memory of 1488	5068	RegAsm.exe	105
PID 5068 wrote to memory of 1488	5068	RegAsm.exe	105
PID 5068 wrote to memory of 1488	5068	RegAsm.exe	105

C:\Users\Admin\AppData\Local\Temp\cfa7e39b168a5def4bb34afc84685620N.exe
"C:\Users\Admin\AppData\Local\Temp\cfa7e39b168a5def4bb34afc84685620N.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3092
- 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:5068
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DDP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB2FF.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:4480
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DDP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB34E.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1488

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

1

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\tmpB2FF.tmp

Filesize
1KB

MD5
c6f0625bf4c1cdfb699980c9243d3b22

SHA1
43de1fe580576935516327f17b5da0c656c72851

SHA256
8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576

SHA512
9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpB34E.tmp

Filesize
1KB

MD5
2a91b19749346c8f783945a00a5050d7

SHA1
66c61f7802ac5b83aae26f6042575717209bae3e

SHA256
0b0a294877234b2406c573060ff13262da0414485c0954ef8961a9429d9f7fb1

SHA512
c5b044a2bda0ad0d38fb57ffb54611381f05ef6ef2f14481d00c278ecefda2d963ef41b2ef6e2bb16718fb8e5aa859bf2b9f870bf3ba8959c5a6b5b03aa53622

Download Submit
memory/3092-5-0x0000000000350000-0x0000000000351000-memory.dmp

Filesize
4KB

Download
memory/5068-1-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/5068-6-0x0000000074082000-0x0000000074083000-memory.dmp

Filesize
4KB

Download
memory/5068-7-0x0000000074080000-0x0000000074631000-memory.dmp

Filesize
5.7MB

Download
memory/5068-8-0x0000000074080000-0x0000000074631000-memory.dmp

Filesize
5.7MB

Download
memory/5068-19-0x0000000074082000-0x0000000074083000-memory.dmp

Filesize
4KB

Download
memory/5068-20-0x0000000074080000-0x0000000074631000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads