nanocore | 181b63e57b712d3d3b0a137cde1728a23a06ceda7bebd3b7e7e83c5d7406f46a

General

Target

181b63e57b712d3d3b0a137cde1728a23a06ceda7bebd3b7e7e83c5d7406f46a.exe
Size

416KB
MD5

5a07735338f03f43aa20a064f3e23fd4
SHA1

024749ae320d59dc8b90b2d5d95e40d90929fcdc
SHA256

181b63e57b712d3d3b0a137cde1728a23a06ceda7bebd3b7e7e83c5d7406f46a
SHA512

0ec4ff12a58953e6b8e913231bfb2f8581eed7a4fa0dff29bf81eb9c5472508bc4f026293414ac50f7596799d547fb6edd6082172dbc2c87027f6b7e8b26b86b
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU78:ITNYrnE3bm/CiejewY5v9

Score

10^/10

nanocore defense_evasion discovery 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-1-5-21-2045521122-590294423-3465680274-1000\Control Panel\International\Geo\Nation	181b63e57b712d3d3b0a137cde1728a23a06ceda7bebd3b7e7e83c5d7406f46a.exe

Executes dropped EXE 1 IoCs

pid	Process
1452	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-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	181b63e57b712d3d3b0a137cde1728a23a06ceda7bebd3b7e7e83c5d7406f46a.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

defense_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 1452 set thread context of 3128	1452	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	181b63e57b712d3d3b0a137cde1728a23a06ceda7bebd3b7e7e83c5d7406f46a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ximo2ubzn1i.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3128	regasm.exe
3128	regasm.exe
3128	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3128	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3128	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4800 wrote to memory of 1452	4800	181b63e57b712d3d3b0a137cde1728a23a06ceda7bebd3b7e7e83c5d7406f46a.exe	84
PID 4800 wrote to memory of 1452	4800	181b63e57b712d3d3b0a137cde1728a23a06ceda7bebd3b7e7e83c5d7406f46a.exe	84
PID 4800 wrote to memory of 1452	4800	181b63e57b712d3d3b0a137cde1728a23a06ceda7bebd3b7e7e83c5d7406f46a.exe	84
PID 1452 wrote to memory of 3128	1452	ximo2ubzn1i.exe	85
PID 1452 wrote to memory of 3128	1452	ximo2ubzn1i.exe	85
PID 1452 wrote to memory of 3128	1452	ximo2ubzn1i.exe	85
PID 1452 wrote to memory of 3128	1452	ximo2ubzn1i.exe	85
PID 1452 wrote to memory of 3128	1452	ximo2ubzn1i.exe	85
PID 1452 wrote to memory of 3128	1452	ximo2ubzn1i.exe	85
PID 1452 wrote to memory of 3128	1452	ximo2ubzn1i.exe	85
PID 1452 wrote to memory of 3128	1452	ximo2ubzn1i.exe	85

C:\Users\Admin\AppData\Local\Temp\181b63e57b712d3d3b0a137cde1728a23a06ceda7bebd3b7e7e83c5d7406f46a.exe
"C:\Users\Admin\AppData\Local\Temp\181b63e57b712d3d3b0a137cde1728a23a06ceda7bebd3b7e7e83c5d7406f46a.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4800
- 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:1452
- - 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:3128

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe

Filesize
416KB

MD5
61e273cfc6a06b354089e1675a39aaab

SHA1
ba598efca7de39026b046ea96c5968a3fc15dbd7

SHA256
ee1bef09c5c322948ab69b57a51e11a0e4ee916d2309ef27b7e2c5e88e651976

SHA512
2e32a78bec04b6c72a6e3080ca9a56201a575eca80bb3f5807966a1c6946c15b2757bf3b857d4c9314e3195eac6d100b5732a66fe1e369d46498dd9874bafd8b

Download Submit
memory/1452-35-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/1452-33-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/1452-21-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/1452-20-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/3128-29-0x0000000005760000-0x000000000576A000-memory.dmp

Filesize
40KB

Download
memory/3128-27-0x0000000005820000-0x00000000058BC000-memory.dmp

Filesize
624KB

Download
memory/3128-36-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/3128-31-0x0000000005C70000-0x0000000005C7A000-memory.dmp

Filesize
40KB

Download
memory/3128-30-0x0000000005A70000-0x0000000005A8E000-memory.dmp

Filesize
120KB

Download
memory/3128-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3128-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3128-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3128-26-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/4800-6-0x0000000005C30000-0x0000000005C6C000-memory.dmp

Filesize
240KB

Download
memory/4800-0-0x000000007524E000-0x000000007524F000-memory.dmp

Filesize
4KB

Download
memory/4800-3-0x00000000050D0000-0x0000000005162000-memory.dmp

Filesize
584KB

Download
memory/4800-5-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/4800-32-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/4800-2-0x0000000005680000-0x0000000005C24000-memory.dmp

Filesize
5.6MB

Download
memory/4800-1-0x0000000000600000-0x000000000066E000-memory.dmp

Filesize
440KB

Download
memory/4800-4-0x0000000005060000-0x000000000506A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads