nanocore | 589b47f979dd9e861e5b62b94bb7dba6d7e08123db16f0bf2cc0dfe9d104b7ef

General

Target

589b47f979dd9e861e5b62b94bb7dba6d7e08123db16f0bf2cc0dfe9d104b7ef.exe
Size

417KB
MD5

f01fe3cd58e8a3f96f349f98778e0ed3
SHA1

e9623a2603aa10b12bc4582a5589b53bf2a8aeb6
SHA256

589b47f979dd9e861e5b62b94bb7dba6d7e08123db16f0bf2cc0dfe9d104b7ef
SHA512

5da8582a0352b8f0cfd56a3445713c3d889054f48fe51bb6f1451902fc41b86a5204713f3389409985c1ed01ef6e99d769ae9a57d0cf34d5b0a501496f8afe0c
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU70:ITNYrnE3bm/CiejewY5vD

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

Executes dropped EXE 1 IoCs

pid	Process
2060	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

pid	Process
2420	589b47f979dd9e861e5b62b94bb7dba6d7e08123db16f0bf2cc0dfe9d104b7ef.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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	589b47f979dd9e861e5b62b94bb7dba6d7e08123db16f0bf2cc0dfe9d104b7ef.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 2060 set thread context of 2884	2060	ximo2ubzn1i.exe	32

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	regasm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	589b47f979dd9e861e5b62b94bb7dba6d7e08123db16f0bf2cc0dfe9d104b7ef.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ximo2ubzn1i.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2884	regasm.exe
2884	regasm.exe
2884	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2884	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2884	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 2060	2420	589b47f979dd9e861e5b62b94bb7dba6d7e08123db16f0bf2cc0dfe9d104b7ef.exe	30
PID 2420 wrote to memory of 2060	2420	589b47f979dd9e861e5b62b94bb7dba6d7e08123db16f0bf2cc0dfe9d104b7ef.exe	30
PID 2420 wrote to memory of 2060	2420	589b47f979dd9e861e5b62b94bb7dba6d7e08123db16f0bf2cc0dfe9d104b7ef.exe	30
PID 2420 wrote to memory of 2060	2420	589b47f979dd9e861e5b62b94bb7dba6d7e08123db16f0bf2cc0dfe9d104b7ef.exe	30
PID 2060 wrote to memory of 2884	2060	ximo2ubzn1i.exe	32
PID 2060 wrote to memory of 2884	2060	ximo2ubzn1i.exe	32
PID 2060 wrote to memory of 2884	2060	ximo2ubzn1i.exe	32
PID 2060 wrote to memory of 2884	2060	ximo2ubzn1i.exe	32
PID 2060 wrote to memory of 2884	2060	ximo2ubzn1i.exe	32
PID 2060 wrote to memory of 2884	2060	ximo2ubzn1i.exe	32
PID 2060 wrote to memory of 2884	2060	ximo2ubzn1i.exe	32
PID 2060 wrote to memory of 2884	2060	ximo2ubzn1i.exe	32
PID 2060 wrote to memory of 2884	2060	ximo2ubzn1i.exe	32
PID 2060 wrote to memory of 2884	2060	ximo2ubzn1i.exe	32
PID 2060 wrote to memory of 2884	2060	ximo2ubzn1i.exe	32
PID 2060 wrote to memory of 2884	2060	ximo2ubzn1i.exe	32

C:\Users\Admin\AppData\Local\Temp\589b47f979dd9e861e5b62b94bb7dba6d7e08123db16f0bf2cc0dfe9d104b7ef.exe
"C:\Users\Admin\AppData\Local\Temp\589b47f979dd9e861e5b62b94bb7dba6d7e08123db16f0bf2cc0dfe9d104b7ef.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2420
- 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:2060
- - 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:2884

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

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\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe

Filesize
417KB

MD5
a5d69067275cecdc7776f279f3d815c0

SHA1
883356f8772b816447e2c1f226362beb7b7472fb

SHA256
2d212864d23bcd4417f816bf4bcf68a574477a3b55a81e5f1e61924696f6eb1e

SHA512
40496e54635b1086407e11d96d81b7364f909dad72f0683d3e2c77ba81fd1312f59f306e72a6fa356c7516b89be69aa5101d3deeefd7461cfa333c8c2eff3ba4

Download Submit
memory/2060-33-0x0000000074580000-0x0000000074C6E000-memory.dmp

Filesize
6.9MB

Download
memory/2060-13-0x0000000074580000-0x0000000074C6E000-memory.dmp

Filesize
6.9MB

Download
memory/2060-14-0x0000000000F80000-0x0000000000FEE000-memory.dmp

Filesize
440KB

Download
memory/2060-15-0x0000000074580000-0x0000000074C6E000-memory.dmp

Filesize
6.9MB

Download
memory/2060-34-0x0000000074580000-0x0000000074C6E000-memory.dmp

Filesize
6.9MB

Download
memory/2420-1-0x0000000000830000-0x000000000089E000-memory.dmp

Filesize
440KB

Download
memory/2420-2-0x0000000074580000-0x0000000074C6E000-memory.dmp

Filesize
6.9MB

Download
memory/2420-3-0x0000000002100000-0x000000000213C000-memory.dmp

Filesize
240KB

Download
memory/2420-12-0x0000000074580000-0x0000000074C6E000-memory.dmp

Filesize
6.9MB

Download
memory/2420-0-0x000000007458E000-0x000000007458F000-memory.dmp

Filesize
4KB

Download
memory/2884-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2884-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2884-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2884-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2884-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2884-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2884-30-0x0000000000480000-0x000000000048A000-memory.dmp

Filesize
40KB

Download
memory/2884-31-0x0000000000680000-0x000000000069E000-memory.dmp

Filesize
120KB

Download
memory/2884-32-0x00000000004D0000-0x00000000004DA000-memory.dmp

Filesize
40KB

Download
memory/2884-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2884-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads