nanocore | 64b70e30a90daf77954264c0ea53c0b735331bc2e081bd8cfaace5d9e0d5175d

General

Target

64b70e30a90daf77954264c0ea53c0b735331bc2e081bd8cfaace5d9e0d5175dN.exe
Size

416KB
MD5

64d7777691ac63a948181fddac13cd50
SHA1

a3959924bf3a617a1d2f57f441677efcab42c972
SHA256

64b70e30a90daf77954264c0ea53c0b735331bc2e081bd8cfaace5d9e0d5175d
SHA512

991d617d1c94d28098b4cebbeda4b0ce0b126ee3c2e26edcef4e030ca7f660d71f45ca0004b801f33a416a5ff27a384c9b651bf0debd7506e96d4a19318b893b
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUb:ITNYrnE3bm/CiejewY5vy

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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	64b70e30a90daf77954264c0ea53c0b735331bc2e081bd8cfaace5d9e0d5175dN.exe

Executes dropped EXE 1 IoCs

pid	Process
3320	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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	64b70e30a90daf77954264c0ea53c0b735331bc2e081bd8cfaace5d9e0d5175dN.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 3320 set thread context of 1596	3320	ximo2ubzn1i.exe	87

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	64b70e30a90daf77954264c0ea53c0b735331bc2e081bd8cfaace5d9e0d5175dN.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
1596	regasm.exe
1596	regasm.exe
1596	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1596	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1596	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3124 wrote to memory of 3320	3124	64b70e30a90daf77954264c0ea53c0b735331bc2e081bd8cfaace5d9e0d5175dN.exe	84
PID 3124 wrote to memory of 3320	3124	64b70e30a90daf77954264c0ea53c0b735331bc2e081bd8cfaace5d9e0d5175dN.exe	84
PID 3124 wrote to memory of 3320	3124	64b70e30a90daf77954264c0ea53c0b735331bc2e081bd8cfaace5d9e0d5175dN.exe	84
PID 3320 wrote to memory of 1596	3320	ximo2ubzn1i.exe	87
PID 3320 wrote to memory of 1596	3320	ximo2ubzn1i.exe	87
PID 3320 wrote to memory of 1596	3320	ximo2ubzn1i.exe	87
PID 3320 wrote to memory of 1596	3320	ximo2ubzn1i.exe	87
PID 3320 wrote to memory of 1596	3320	ximo2ubzn1i.exe	87
PID 3320 wrote to memory of 1596	3320	ximo2ubzn1i.exe	87
PID 3320 wrote to memory of 1596	3320	ximo2ubzn1i.exe	87
PID 3320 wrote to memory of 1596	3320	ximo2ubzn1i.exe	87

C:\Users\Admin\AppData\Local\Temp\64b70e30a90daf77954264c0ea53c0b735331bc2e081bd8cfaace5d9e0d5175dN.exe
"C:\Users\Admin\AppData\Local\Temp\64b70e30a90daf77954264c0ea53c0b735331bc2e081bd8cfaace5d9e0d5175dN.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3124
- 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:3320
- - 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:1596

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
416KB

MD5
8b43f4a652c7952ab098a76755839298

SHA1
db0b6045dd1d88e036be60856d05f5a834840e82

SHA256
1fd2046275be143ae4fe7477e79e7a437cb1ca1a0d63edd33545449d5b69565e

SHA512
87e834b3d912df83bd4d9ae6b2e42989828adbca949a6a6cafa8c0790e5936e69ae3678b79d8a6527d31eddef1cd5aca1a0b194be6304dbe67f44fa812f50844

Download Submit
memory/1596-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1596-36-0x00000000750A0000-0x0000000075850000-memory.dmp

Filesize
7.7MB

Download
memory/1596-32-0x00000000055B0000-0x00000000055BA000-memory.dmp

Filesize
40KB

Download
memory/1596-31-0x0000000005070000-0x000000000508E000-memory.dmp

Filesize
120KB

Download
memory/1596-30-0x0000000005060000-0x000000000506A000-memory.dmp

Filesize
40KB

Download
memory/1596-28-0x00000000050C0000-0x000000000515C000-memory.dmp

Filesize
624KB

Download
memory/1596-27-0x00000000750A0000-0x0000000075850000-memory.dmp

Filesize
7.7MB

Download
memory/1596-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1596-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3124-5-0x0000000004F60000-0x0000000004F6A000-memory.dmp

Filesize
40KB

Download
memory/3124-20-0x00000000750A0000-0x0000000075850000-memory.dmp

Filesize
7.7MB

Download
memory/3124-6-0x0000000005460000-0x000000000549C000-memory.dmp

Filesize
240KB

Download
memory/3124-0-0x00000000750AE000-0x00000000750AF000-memory.dmp

Filesize
4KB

Download
memory/3124-4-0x00000000750A0000-0x0000000075850000-memory.dmp

Filesize
7.7MB

Download
memory/3124-3-0x0000000004E90000-0x0000000004F22000-memory.dmp

Filesize
584KB

Download
memory/3124-2-0x0000000005510000-0x0000000005AB4000-memory.dmp

Filesize
5.6MB

Download
memory/3124-1-0x0000000000440000-0x00000000004AE000-memory.dmp

Filesize
440KB

Download
memory/3320-22-0x00000000750A0000-0x0000000075850000-memory.dmp

Filesize
7.7MB

Download
memory/3320-21-0x00000000750A0000-0x0000000075850000-memory.dmp

Filesize
7.7MB

Download
memory/3320-33-0x00000000750A0000-0x0000000075850000-memory.dmp

Filesize
7.7MB

Download
memory/3320-35-0x00000000750A0000-0x0000000075850000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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