nanocore | fca3571d8258919c1a4d8c321a5865b502cf0696e9e250ad8a0bfa512813edc6

General

Target

fca3571d8258919c1a4d8c321a5865b502cf0696e9e250ad8a0bfa512813edc6.exe
Size

415KB
MD5

5ac04320fa5f94ffc714b50da5222df9
SHA1

b2aa5bc613ed3d735b954f5503f522d986fa1a36
SHA256

fca3571d8258919c1a4d8c321a5865b502cf0696e9e250ad8a0bfa512813edc6
SHA512

086233bec69e6dc29aa57d6a046230a8fe37bb49c9f46008fe1c6f85d1799655c0262cd9e8794ddd783213e09dd14e06a9247e2fd05e30bc629007b86de56fcc
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUD:ITNYrnE3bm/CiejewY5vA

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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	fca3571d8258919c1a4d8c321a5865b502cf0696e9e250ad8a0bfa512813edc6.exe

Executes dropped EXE 1 IoCs

pid	Process
4112	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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	fca3571d8258919c1a4d8c321a5865b502cf0696e9e250ad8a0bfa512813edc6.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 4112 set thread context of 3068	4112	ximo2ubzn1i.exe	90

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	fca3571d8258919c1a4d8c321a5865b502cf0696e9e250ad8a0bfa512813edc6.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
3068	regasm.exe
3068	regasm.exe
3068	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3068	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3068	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1792 wrote to memory of 4112	1792	fca3571d8258919c1a4d8c321a5865b502cf0696e9e250ad8a0bfa512813edc6.exe	86
PID 1792 wrote to memory of 4112	1792	fca3571d8258919c1a4d8c321a5865b502cf0696e9e250ad8a0bfa512813edc6.exe	86
PID 1792 wrote to memory of 4112	1792	fca3571d8258919c1a4d8c321a5865b502cf0696e9e250ad8a0bfa512813edc6.exe	86
PID 4112 wrote to memory of 3068	4112	ximo2ubzn1i.exe	90
PID 4112 wrote to memory of 3068	4112	ximo2ubzn1i.exe	90
PID 4112 wrote to memory of 3068	4112	ximo2ubzn1i.exe	90
PID 4112 wrote to memory of 3068	4112	ximo2ubzn1i.exe	90
PID 4112 wrote to memory of 3068	4112	ximo2ubzn1i.exe	90
PID 4112 wrote to memory of 3068	4112	ximo2ubzn1i.exe	90
PID 4112 wrote to memory of 3068	4112	ximo2ubzn1i.exe	90
PID 4112 wrote to memory of 3068	4112	ximo2ubzn1i.exe	90

C:\Users\Admin\AppData\Local\Temp\fca3571d8258919c1a4d8c321a5865b502cf0696e9e250ad8a0bfa512813edc6.exe
"C:\Users\Admin\AppData\Local\Temp\fca3571d8258919c1a4d8c321a5865b502cf0696e9e250ad8a0bfa512813edc6.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1792
- 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:4112
- - 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:3068

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
0c178cd78176c52070134d9551824deb

SHA1
7aa28ec4a806c657f86fd6b5a42558e6e3461871

SHA256
714942c65ee383bbf5601f61b370b1e10c0c83f588c854ecf6456809dec06c62

SHA512
91c13285cd96a82964f7a23a08147811d390b6cc16f4b8d04198f2a6f99d7229899202c444a3638fb5c8063de74529ed88200e803653c076a78f5f6ff13a79ff

Download Submit
memory/1792-21-0x0000000074690000-0x0000000074E40000-memory.dmp

Filesize
7.7MB

Download
memory/1792-1-0x00000000007A0000-0x000000000080E000-memory.dmp

Filesize
440KB

Download
memory/1792-2-0x00000000059C0000-0x0000000005F64000-memory.dmp

Filesize
5.6MB

Download
memory/1792-3-0x00000000052B0000-0x0000000005342000-memory.dmp

Filesize
584KB

Download
memory/1792-5-0x0000000074690000-0x0000000074E40000-memory.dmp

Filesize
7.7MB

Download
memory/1792-4-0x0000000005210000-0x000000000521A000-memory.dmp

Filesize
40KB

Download
memory/1792-6-0x00000000053C0000-0x00000000053FC000-memory.dmp

Filesize
240KB

Download
memory/1792-0-0x000000007469E000-0x000000007469F000-memory.dmp

Filesize
4KB

Download
memory/3068-28-0x0000000004EC0000-0x0000000004F5C000-memory.dmp

Filesize
624KB

Download
memory/3068-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3068-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3068-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3068-27-0x0000000074690000-0x0000000074E40000-memory.dmp

Filesize
7.7MB

Download
memory/3068-30-0x0000000004EB0000-0x0000000004EBA000-memory.dmp

Filesize
40KB

Download
memory/3068-31-0x0000000005020000-0x000000000503E000-memory.dmp

Filesize
120KB

Download
memory/3068-32-0x0000000005D40000-0x0000000005D4A000-memory.dmp

Filesize
40KB

Download
memory/3068-36-0x0000000074690000-0x0000000074E40000-memory.dmp

Filesize
7.7MB

Download
memory/4112-22-0x0000000074690000-0x0000000074E40000-memory.dmp

Filesize
7.7MB

Download
memory/4112-20-0x0000000074690000-0x0000000074E40000-memory.dmp

Filesize
7.7MB

Download
memory/4112-33-0x0000000074690000-0x0000000074E40000-memory.dmp

Filesize
7.7MB

Download
memory/4112-35-0x0000000074690000-0x0000000074E40000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads