nanocore | 4256c11a396ac144b03ba3dd5bed252f3d89ec68baf892df78a0420ced0cc01c

General

Target

HLCUJK1200426084 INV 2097430962.DNS.exe
Size

342KB
MD5

9c269b95c724a6974b4800643308fdf3
SHA1

5a08a0314f5848caa51dc2e8cf6108f6382af001
SHA256

97553c2488962a2876a76f8c0cf8fc80b061c13663e0591879d2436086d6f24e
SHA512

1a263342be9881421c214982bd04d468499087e4171d98a745559d5768394d435dcc9ebbe99bebe0b977318c627633dd9dd370dff405f9d999aad53dfab374ca
SSDEEP

6144:hJxl4lK4sCsZNOmcp0DT8UYvJr3/IttmkbelYfV0Udme8w+a0kfoizrB5ULRu5F0:hJxT4tMOm974/QMIzKUdmra0kfoiz4LH

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

adikaremix.linkpc.net:1790

185.140.53.13:1790

Mutex

9493864b-27d9-4410-9dcc-9a0c4732a1d5

Attributes

activate_away_mode
true
backup_connection_host
185.140.53.13
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-03-21T11:14:38.887176036Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1790
default_group
June@@
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
9493864b-27d9-4410-9dcc-9a0c4732a1d5
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
adikaremix.linkpc.net
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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1302416131-1437503476-2806442725-1000\Control Panel\International\Geo\Nation	HLCUJK1200426084 INV 2097430962.DNS.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\WAN Subsystem = "C:\\Program Files (x86)\\WAN Subsystem\\wanss.exe"	HLCUJK1200426084 INV 2097430962.DNS.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	HLCUJK1200426084 INV 2097430962.DNS.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3968 set thread context of 2592	3968	HLCUJK1200426084 INV 2097430962.DNS.exe	98

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\WAN Subsystem\wanss.exe	HLCUJK1200426084 INV 2097430962.DNS.exe
File opened for modification	C:\Program Files (x86)\WAN Subsystem\wanss.exe	HLCUJK1200426084 INV 2097430962.DNS.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 3 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	HLCUJK1200426084 INV 2097430962.DNS.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	HLCUJK1200426084 INV 2097430962.DNS.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
3928	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2592	HLCUJK1200426084 INV 2097430962.DNS.exe
2592	HLCUJK1200426084 INV 2097430962.DNS.exe
2592	HLCUJK1200426084 INV 2097430962.DNS.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2592	HLCUJK1200426084 INV 2097430962.DNS.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2592	HLCUJK1200426084 INV 2097430962.DNS.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3968 wrote to memory of 3928	3968	HLCUJK1200426084 INV 2097430962.DNS.exe	96
PID 3968 wrote to memory of 3928	3968	HLCUJK1200426084 INV 2097430962.DNS.exe	96
PID 3968 wrote to memory of 3928	3968	HLCUJK1200426084 INV 2097430962.DNS.exe	96
PID 3968 wrote to memory of 2592	3968	HLCUJK1200426084 INV 2097430962.DNS.exe	98
PID 3968 wrote to memory of 2592	3968	HLCUJK1200426084 INV 2097430962.DNS.exe	98
PID 3968 wrote to memory of 2592	3968	HLCUJK1200426084 INV 2097430962.DNS.exe	98
PID 3968 wrote to memory of 2592	3968	HLCUJK1200426084 INV 2097430962.DNS.exe	98
PID 3968 wrote to memory of 2592	3968	HLCUJK1200426084 INV 2097430962.DNS.exe	98
PID 3968 wrote to memory of 2592	3968	HLCUJK1200426084 INV 2097430962.DNS.exe	98
PID 3968 wrote to memory of 2592	3968	HLCUJK1200426084 INV 2097430962.DNS.exe	98
PID 3968 wrote to memory of 2592	3968	HLCUJK1200426084 INV 2097430962.DNS.exe	98

C:\Users\Admin\AppData\Local\Temp\HLCUJK1200426084 INV 2097430962.DNS.exe
"C:\Users\Admin\AppData\Local\Temp\HLCUJK1200426084 INV 2097430962.DNS.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3968
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WwJuvkkGnytJv" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1A59.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:3928
- C:\Users\Admin\AppData\Local\Temp\HLCUJK1200426084 INV 2097430962.DNS.exe
  "{path}"
  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
  PID:2592

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

Query Registry

1

T1012

System Information Discovery

3

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\Microsoft\CLR_v2.0_32\UsageLogs\HLCUJK1200426084 INV 2097430962.DNS.exe.log

Filesize
408B

MD5
8adbb2cb7759fdcbc51cfbf0bfd7c867

SHA1
f7549e6ea430e7d64b3afb3fc27c77ed5122f85b

SHA256
c67092561e4b1472672374c3439004e2bc0191d9a901cde2b8b69a2d34dc6297

SHA512
f465311e884dd82e3152959b6a59ac8d6be0a056a1cfddabbcc6714079a2269cd5c09b2b8fbc87a9ec3323c531383526ae19ef24fed100dec80730fae0d79991

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp1A59.tmp

Filesize
1KB

MD5
58bf873fc3b86e9203726be00936f945

SHA1
32963ae9e32a855c56cac0ba63137d4eeeb155ed

SHA256
9ebd02a20944f6d42aeb33936893c1c6d371d74b37294f2d955fc9edea8d56df

SHA512
9a55505fee8a18b130cea8d33ba876623b006cebcba3f430536415f38aba0227ad2170ed2525c0ec1073863424043d7e1e82bc6d92a9aa05e2bb1fc41b7291e1

Download Submit
memory/2592-14-0x00000000748A0000-0x0000000074E51000-memory.dmp

Filesize
5.7MB

Download
memory/2592-10-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2592-15-0x00000000748A0000-0x0000000074E51000-memory.dmp

Filesize
5.7MB

Download
memory/2592-16-0x00000000748A0000-0x0000000074E51000-memory.dmp

Filesize
5.7MB

Download
memory/2592-18-0x00000000748A0000-0x0000000074E51000-memory.dmp

Filesize
5.7MB

Download
memory/2592-20-0x00000000748A0000-0x0000000074E51000-memory.dmp

Filesize
5.7MB

Download
memory/2592-21-0x00000000748A0000-0x0000000074E51000-memory.dmp

Filesize
5.7MB

Download
memory/3968-4-0x00000000748A0000-0x0000000074E51000-memory.dmp

Filesize
5.7MB

Download
memory/3968-3-0x00000000748A2000-0x00000000748A3000-memory.dmp

Filesize
4KB

Download
memory/3968-1-0x00000000748A0000-0x0000000074E51000-memory.dmp

Filesize
5.7MB

Download
memory/3968-2-0x00000000748A0000-0x0000000074E51000-memory.dmp

Filesize
5.7MB

Download
memory/3968-13-0x00000000748A0000-0x0000000074E51000-memory.dmp

Filesize
5.7MB

Download
memory/3968-0-0x00000000748A2000-0x00000000748A3000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads