nanocore | d379e21d15421f3f1a17d3e0004410d6b900df1a02b312d45b0b2afe6fb3e2b5

General

Target

d379e21d15421f3f1a17d3e0004410d6b900df1a02b312d45b0b2afe6fb3e2b5.exe
Size

415KB
MD5

763d75abab3a23c34252177bcb97bd5b
SHA1

961a3ef008768322fa95e5c0a4bd3bf6bdbd0d5a
SHA256

d379e21d15421f3f1a17d3e0004410d6b900df1a02b312d45b0b2afe6fb3e2b5
SHA512

77827593a005c4e4da9d949efbc5e04a448a3d88f9e2bdd6450e6d570a589d2c892890731c4328da8193a20622e8e9893cee21ce9539508f0bb887d20cfc1605
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUo:ITNYrnE3bm/CiejewY5v/

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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	d379e21d15421f3f1a17d3e0004410d6b900df1a02b312d45b0b2afe6fb3e2b5.exe

Executes dropped EXE 1 IoCs

pid	Process
2284	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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	d379e21d15421f3f1a17d3e0004410d6b900df1a02b312d45b0b2afe6fb3e2b5.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 2284 set thread context of 904	2284	ximo2ubzn1i.exe	84

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	d379e21d15421f3f1a17d3e0004410d6b900df1a02b312d45b0b2afe6fb3e2b5.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
904	regasm.exe
904	regasm.exe
904	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
904	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	904	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4712 wrote to memory of 2284	4712	d379e21d15421f3f1a17d3e0004410d6b900df1a02b312d45b0b2afe6fb3e2b5.exe	83
PID 4712 wrote to memory of 2284	4712	d379e21d15421f3f1a17d3e0004410d6b900df1a02b312d45b0b2afe6fb3e2b5.exe	83
PID 4712 wrote to memory of 2284	4712	d379e21d15421f3f1a17d3e0004410d6b900df1a02b312d45b0b2afe6fb3e2b5.exe	83
PID 2284 wrote to memory of 904	2284	ximo2ubzn1i.exe	84
PID 2284 wrote to memory of 904	2284	ximo2ubzn1i.exe	84
PID 2284 wrote to memory of 904	2284	ximo2ubzn1i.exe	84
PID 2284 wrote to memory of 904	2284	ximo2ubzn1i.exe	84
PID 2284 wrote to memory of 904	2284	ximo2ubzn1i.exe	84
PID 2284 wrote to memory of 904	2284	ximo2ubzn1i.exe	84
PID 2284 wrote to memory of 904	2284	ximo2ubzn1i.exe	84
PID 2284 wrote to memory of 904	2284	ximo2ubzn1i.exe	84

C:\Users\Admin\AppData\Local\Temp\d379e21d15421f3f1a17d3e0004410d6b900df1a02b312d45b0b2afe6fb3e2b5.exe
"C:\Users\Admin\AppData\Local\Temp\d379e21d15421f3f1a17d3e0004410d6b900df1a02b312d45b0b2afe6fb3e2b5.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4712
- 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:2284
- - 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:904

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
16a6af10dcfcf3359f812d3502431983

SHA1
3b2fc216352df9300432e11d21c65fab0aae7e9c

SHA256
a5dcf4ba603ca3222d4c1bd1231dfc58ef63be217aa000499366acf2bd407be8

SHA512
aa3ab2d3c30b9e848384ceec92b998b9db493029b4e0d735da03fc76e7705d35a263df8b067813cf8abc5c92a04506e8a935ebc9bf3c7371e0a0de3fc29123e5

Download Submit
memory/904-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/904-36-0x0000000075160000-0x0000000075910000-memory.dmp

Filesize
7.7MB

Download
memory/904-32-0x00000000054E0000-0x00000000054EA000-memory.dmp

Filesize
40KB

Download
memory/904-31-0x0000000005170000-0x000000000518E000-memory.dmp

Filesize
120KB

Download
memory/904-30-0x0000000005140000-0x000000000514A000-memory.dmp

Filesize
40KB

Download
memory/904-28-0x0000000005000000-0x000000000509C000-memory.dmp

Filesize
624KB

Download
memory/904-27-0x0000000075160000-0x0000000075910000-memory.dmp

Filesize
7.7MB

Download
memory/904-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/904-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2284-22-0x0000000075160000-0x0000000075910000-memory.dmp

Filesize
7.7MB

Download
memory/2284-21-0x0000000075160000-0x0000000075910000-memory.dmp

Filesize
7.7MB

Download
memory/2284-33-0x0000000075160000-0x0000000075910000-memory.dmp

Filesize
7.7MB

Download
memory/2284-35-0x0000000075160000-0x0000000075910000-memory.dmp

Filesize
7.7MB

Download
memory/4712-0-0x000000007516E000-0x000000007516F000-memory.dmp

Filesize
4KB

Download
memory/4712-20-0x0000000075160000-0x0000000075910000-memory.dmp

Filesize
7.7MB

Download
memory/4712-6-0x00000000054A0000-0x00000000054DC000-memory.dmp

Filesize
240KB

Download
memory/4712-5-0x0000000005360000-0x000000000536A000-memory.dmp

Filesize
40KB

Download
memory/4712-4-0x0000000075160000-0x0000000075910000-memory.dmp

Filesize
7.7MB

Download
memory/4712-3-0x0000000005260000-0x00000000052F2000-memory.dmp

Filesize
584KB

Download
memory/4712-2-0x0000000005810000-0x0000000005DB4000-memory.dmp

Filesize
5.6MB

Download
memory/4712-1-0x0000000000770000-0x00000000007DE000-memory.dmp

Filesize
440KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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