nanocore | 9439e41e046ccad28bb2683232eeba8ca70b850bb8b1c8710a849444d844be5a

General

Target

9439e41e046ccad28bb2683232eeba8ca70b850bb8b1c8710a849444d844be5aN.exe
Size

415KB
MD5

447a4b1c8a5b7482273a1dd9bb238b80
SHA1

56b3a119d788d7e816cbc6fa1da96b9e16dad746
SHA256

9439e41e046ccad28bb2683232eeba8ca70b850bb8b1c8710a849444d844be5a
SHA512

b54e4a9c1765ee684da9f41e5a86b80cfd5df1907a231a056ffa282f30127830c957187f7b973087b436a994f7f1c8dc6979745ccfef236c7346c897516b4eef
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU7w:ITNYrnE3bm/CiejewY5vz

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

[email protected]:46218

178.32.224.116:46218

Mutex

4af74541-e3f1-469c-8af7-efe4071b81cf

Attributes

activate_away_mode
false
backup_connection_host
178.32.224.116
backup_dns_server
buffer_size
65535
build_time
2018-07-28T12:59:38.488799236Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
false
clear_zone_identifier
false
connect_delay
4000
connection_port
46218
default_group
tourex
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
4af74541-e3f1-469c-8af7-efe4071b81cf
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
[email protected]
primary_dns_server
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
Nanocore family
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-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	9439e41e046ccad28bb2683232eeba8ca70b850bb8b1c8710a849444d844be5aN.exe

Executes dropped EXE 1 IoCs

pid	Process
1732	ximo2ubzn1i.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\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	9439e41e046ccad28bb2683232eeba8ca70b850bb8b1c8710a849444d844be5aN.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 1732 set thread context of 3408	1732	ximo2ubzn1i.exe	92

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	9439e41e046ccad28bb2683232eeba8ca70b850bb8b1c8710a849444d844be5aN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ximo2ubzn1i.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regasm.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3408	regasm.exe
3408	regasm.exe
3408	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3408	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3408	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2192 wrote to memory of 1732	2192	9439e41e046ccad28bb2683232eeba8ca70b850bb8b1c8710a849444d844be5aN.exe	91
PID 2192 wrote to memory of 1732	2192	9439e41e046ccad28bb2683232eeba8ca70b850bb8b1c8710a849444d844be5aN.exe	91
PID 2192 wrote to memory of 1732	2192	9439e41e046ccad28bb2683232eeba8ca70b850bb8b1c8710a849444d844be5aN.exe	91
PID 1732 wrote to memory of 3408	1732	ximo2ubzn1i.exe	92
PID 1732 wrote to memory of 3408	1732	ximo2ubzn1i.exe	92
PID 1732 wrote to memory of 3408	1732	ximo2ubzn1i.exe	92
PID 1732 wrote to memory of 3408	1732	ximo2ubzn1i.exe	92
PID 1732 wrote to memory of 3408	1732	ximo2ubzn1i.exe	92
PID 1732 wrote to memory of 3408	1732	ximo2ubzn1i.exe	92
PID 1732 wrote to memory of 3408	1732	ximo2ubzn1i.exe	92
PID 1732 wrote to memory of 3408	1732	ximo2ubzn1i.exe	92

C:\Users\Admin\AppData\Local\Temp\9439e41e046ccad28bb2683232eeba8ca70b850bb8b1c8710a849444d844be5aN.exe
"C:\Users\Admin\AppData\Local\Temp\9439e41e046ccad28bb2683232eeba8ca70b850bb8b1c8710a849444d844be5aN.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2192
- C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe
  "C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1732
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
    3⤵
    - Checks whether UAC is enabled
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:3408

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

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\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe

Filesize
415KB

MD5
f1c320a87b76bffc51922111fc0d2af5

SHA1
8770ead99c7941f303423b868beb26908a67a7a2

SHA256
e7fbba0a86edba6953a8da88bd1c4debfffda3315fb6453ebf840cd124a4cba0

SHA512
d6843c1c92f1cd23a4833c9f77e3d95901ce72bb8ffb1256d820a568cad0fc6902c4d7e7b25af67bd23f5086b6dd4f8ab8d8bb91239bab9fde58a0d9b2bc70c9

Download Submit
memory/1732-35-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/1732-33-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/1732-22-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/1732-21-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/2192-5-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/2192-6-0x0000000005B30000-0x0000000005B6C000-memory.dmp

Filesize
240KB

Download
memory/2192-0-0x0000000074EBE000-0x0000000074EBF000-memory.dmp

Filesize
4KB

Download
memory/2192-20-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/2192-4-0x0000000005670000-0x000000000567A000-memory.dmp

Filesize
40KB

Download
memory/2192-3-0x0000000005680000-0x0000000005712000-memory.dmp

Filesize
584KB

Download
memory/2192-1-0x0000000000BF0000-0x0000000000C5E000-memory.dmp

Filesize
440KB

Download
memory/2192-2-0x0000000005B90000-0x0000000006134000-memory.dmp

Filesize
5.6MB

Download
memory/3408-27-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download
memory/3408-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3408-28-0x00000000053F0000-0x000000000548C000-memory.dmp

Filesize
624KB

Download
memory/3408-30-0x00000000055D0000-0x00000000055DA000-memory.dmp

Filesize
40KB

Download
memory/3408-31-0x00000000060C0000-0x00000000060DE000-memory.dmp

Filesize
120KB

Download
memory/3408-32-0x00000000061E0000-0x00000000061EA000-memory.dmp

Filesize
40KB

Download
memory/3408-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3408-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3408-36-0x0000000074EB0000-0x0000000075660000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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