nanocore | 003a246b64d08d1bfdf2922245d33daf0877eb5c0774596114de5314a25b9787

General

Target

003a246b64d08d1bfdf2922245d33daf0877eb5c0774596114de5314a25b9787N.exe
Size

416KB
MD5

6b7cb82e31f5df945d6e3b30f835bf90
SHA1

f2eacb1b8e9b0a075c9e7887cf2c3d33c3053b9c
SHA256

003a246b64d08d1bfdf2922245d33daf0877eb5c0774596114de5314a25b9787
SHA512

0202fd3eb61ed388eb83c29b2aebe7d449436911c66fdea4c6aa9f4c63502df0d19d7ad078fcd6fe8eb3dced6738b6827c8f59e066c075fbad435ef0bd191f59
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUb:ITNYrnE3bm/CiejewY5v4

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	003a246b64d08d1bfdf2922245d33daf0877eb5c0774596114de5314a25b9787N.exe

Executes dropped EXE 1 IoCs

pid	Process
5044	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"	003a246b64d08d1bfdf2922245d33daf0877eb5c0774596114de5314a25b9787N.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 5044 set thread context of 1832	5044	ximo2ubzn1i.exe	85

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	003a246b64d08d1bfdf2922245d33daf0877eb5c0774596114de5314a25b9787N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ximo2ubzn1i.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1832	regasm.exe
1832	regasm.exe
1832	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1832	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1832	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3308 wrote to memory of 5044	3308	003a246b64d08d1bfdf2922245d33daf0877eb5c0774596114de5314a25b9787N.exe	84
PID 3308 wrote to memory of 5044	3308	003a246b64d08d1bfdf2922245d33daf0877eb5c0774596114de5314a25b9787N.exe	84
PID 3308 wrote to memory of 5044	3308	003a246b64d08d1bfdf2922245d33daf0877eb5c0774596114de5314a25b9787N.exe	84
PID 5044 wrote to memory of 1832	5044	ximo2ubzn1i.exe	85
PID 5044 wrote to memory of 1832	5044	ximo2ubzn1i.exe	85
PID 5044 wrote to memory of 1832	5044	ximo2ubzn1i.exe	85
PID 5044 wrote to memory of 1832	5044	ximo2ubzn1i.exe	85
PID 5044 wrote to memory of 1832	5044	ximo2ubzn1i.exe	85
PID 5044 wrote to memory of 1832	5044	ximo2ubzn1i.exe	85
PID 5044 wrote to memory of 1832	5044	ximo2ubzn1i.exe	85
PID 5044 wrote to memory of 1832	5044	ximo2ubzn1i.exe	85

C:\Users\Admin\AppData\Local\Temp\003a246b64d08d1bfdf2922245d33daf0877eb5c0774596114de5314a25b9787N.exe
"C:\Users\Admin\AppData\Local\Temp\003a246b64d08d1bfdf2922245d33daf0877eb5c0774596114de5314a25b9787N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3308
- 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:5044
- - 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:1832

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
4d0c16b78daa303e21f91903fe55f19d

SHA1
2594c0e9393584992d246548a36db1a7cd267f59

SHA256
ceed761ba2107b1f72216d5d33d94d1b3757358e0dc1ca7200e67847cd8da1b0

SHA512
cf955a583e25acf7b1b61c3cfca558a6cdb865c425dcc74adeddb8548ccb1150ba160287fc364a5c5c40e188134f0baa7b8c544adbfd645bb4242a87ca0de38b

Download Submit
memory/1832-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1832-36-0x0000000074540000-0x0000000074CF0000-memory.dmp

Filesize
7.7MB

Download
memory/1832-32-0x0000000005DE0000-0x0000000005DEA000-memory.dmp

Filesize
40KB

Download
memory/1832-31-0x0000000005A20000-0x0000000005A3E000-memory.dmp

Filesize
120KB

Download
memory/1832-30-0x0000000005830000-0x000000000583A000-memory.dmp

Filesize
40KB

Download
memory/1832-28-0x0000000005850000-0x00000000058EC000-memory.dmp

Filesize
624KB

Download
memory/1832-27-0x0000000074540000-0x0000000074CF0000-memory.dmp

Filesize
7.7MB

Download
memory/1832-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1832-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3308-5-0x0000000074540000-0x0000000074CF0000-memory.dmp

Filesize
7.7MB

Download
memory/3308-20-0x0000000074540000-0x0000000074CF0000-memory.dmp

Filesize
7.7MB

Download
memory/3308-6-0x0000000005DD0000-0x0000000005E0C000-memory.dmp

Filesize
240KB

Download
memory/3308-0-0x000000007454E000-0x000000007454F000-memory.dmp

Filesize
4KB

Download
memory/3308-4-0x0000000005AE0000-0x0000000005AEA000-memory.dmp

Filesize
40KB

Download
memory/3308-3-0x0000000005A10000-0x0000000005AA2000-memory.dmp

Filesize
584KB

Download
memory/3308-2-0x00000000060C0000-0x0000000006664000-memory.dmp

Filesize
5.6MB

Download
memory/3308-1-0x0000000000FD0000-0x000000000103E000-memory.dmp

Filesize
440KB

Download
memory/5044-22-0x0000000074540000-0x0000000074CF0000-memory.dmp

Filesize
7.7MB

Download
memory/5044-21-0x0000000074540000-0x0000000074CF0000-memory.dmp

Filesize
7.7MB

Download
memory/5044-33-0x0000000074540000-0x0000000074CF0000-memory.dmp

Filesize
7.7MB

Download
memory/5044-35-0x0000000074540000-0x0000000074CF0000-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