nanocore | 79263f5a4591d7ba7ed2dece56429b7fc640162b6d376ce4390e0e61462734a6

General

Target

79263f5a4591d7ba7ed2dece56429b7fc640162b6d376ce4390e0e61462734a6.exe
Size

416KB
MD5

5bb1cbb992d5a885d10ae0d79dc1299b
SHA1

35bcf72cc6009183f5ecd036eb5d132f4dcdbed4
SHA256

79263f5a4591d7ba7ed2dece56429b7fc640162b6d376ce4390e0e61462734a6
SHA512

66ca8fafc82bbc25ba628b963fbccf0680d9d6f85e2bca69a33181d498c459f5f0d9826b43c1343332ca6ea4e60d2f15cd993a5e97c5bb087cefe37c1989f3bd
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUwbv:ITNYrnE3bm/CiejewY5vXv

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	79263f5a4591d7ba7ed2dece56429b7fc640162b6d376ce4390e0e61462734a6.exe

Executes dropped EXE 1 IoCs

pid	Process
4312	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"	79263f5a4591d7ba7ed2dece56429b7fc640162b6d376ce4390e0e61462734a6.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 4312 set thread context of 4804	4312	ximo2ubzn1i.exe	83

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	79263f5a4591d7ba7ed2dece56429b7fc640162b6d376ce4390e0e61462734a6.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
4804	regasm.exe
4804	regasm.exe
4804	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4804	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4804	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 5012 wrote to memory of 4312	5012	79263f5a4591d7ba7ed2dece56429b7fc640162b6d376ce4390e0e61462734a6.exe	82
PID 5012 wrote to memory of 4312	5012	79263f5a4591d7ba7ed2dece56429b7fc640162b6d376ce4390e0e61462734a6.exe	82
PID 5012 wrote to memory of 4312	5012	79263f5a4591d7ba7ed2dece56429b7fc640162b6d376ce4390e0e61462734a6.exe	82
PID 4312 wrote to memory of 4804	4312	ximo2ubzn1i.exe	83
PID 4312 wrote to memory of 4804	4312	ximo2ubzn1i.exe	83
PID 4312 wrote to memory of 4804	4312	ximo2ubzn1i.exe	83
PID 4312 wrote to memory of 4804	4312	ximo2ubzn1i.exe	83
PID 4312 wrote to memory of 4804	4312	ximo2ubzn1i.exe	83
PID 4312 wrote to memory of 4804	4312	ximo2ubzn1i.exe	83
PID 4312 wrote to memory of 4804	4312	ximo2ubzn1i.exe	83
PID 4312 wrote to memory of 4804	4312	ximo2ubzn1i.exe	83

C:\Users\Admin\AppData\Local\Temp\79263f5a4591d7ba7ed2dece56429b7fc640162b6d376ce4390e0e61462734a6.exe
"C:\Users\Admin\AppData\Local\Temp\79263f5a4591d7ba7ed2dece56429b7fc640162b6d376ce4390e0e61462734a6.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5012
- 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:4312
- - 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:4804

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
bef698eedef262c34e08691aaf858c71

SHA1
a2a924dd861f68e84e3426fe0f02661c361f91cf

SHA256
25515efa30116538daad98d2faa0863b60f61a7f2936fdd94d58913106daebbb

SHA512
3e2b3cab2617bbd0ee04ea68bb9a7a594f2e80771ffbe9bf46cf8732dad5566a715bbc99b01705f75a512a66e93163b270e7d99e5621708f39661a465dddeab9

Download Submit
memory/4312-35-0x0000000075200000-0x00000000759B0000-memory.dmp

Filesize
7.7MB

Download
memory/4312-33-0x0000000075200000-0x00000000759B0000-memory.dmp

Filesize
7.7MB

Download
memory/4312-22-0x0000000075200000-0x00000000759B0000-memory.dmp

Filesize
7.7MB

Download
memory/4312-20-0x0000000075200000-0x00000000759B0000-memory.dmp

Filesize
7.7MB

Download
memory/4804-28-0x0000000005410000-0x00000000054AC000-memory.dmp

Filesize
624KB

Download
memory/4804-32-0x0000000005910000-0x000000000591A000-memory.dmp

Filesize
40KB

Download
memory/4804-36-0x0000000075200000-0x00000000759B0000-memory.dmp

Filesize
7.7MB

Download
memory/4804-31-0x00000000055F0000-0x000000000560E000-memory.dmp

Filesize
120KB

Download
memory/4804-30-0x00000000055E0000-0x00000000055EA000-memory.dmp

Filesize
40KB

Download
memory/4804-27-0x0000000075200000-0x00000000759B0000-memory.dmp

Filesize
7.7MB

Download
memory/4804-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4804-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4804-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/5012-3-0x0000000004B10000-0x0000000004BA2000-memory.dmp

Filesize
584KB

Download
memory/5012-0-0x000000007520E000-0x000000007520F000-memory.dmp

Filesize
4KB

Download
memory/5012-21-0x0000000075200000-0x00000000759B0000-memory.dmp

Filesize
7.7MB

Download
memory/5012-4-0x0000000075200000-0x00000000759B0000-memory.dmp

Filesize
7.7MB

Download
memory/5012-6-0x00000000056D0000-0x000000000570C000-memory.dmp

Filesize
240KB

Download
memory/5012-2-0x0000000005020000-0x00000000055C4000-memory.dmp

Filesize
5.6MB

Download
memory/5012-1-0x00000000000D0000-0x000000000013E000-memory.dmp

Filesize
440KB

Download
memory/5012-5-0x0000000004BD0000-0x0000000004BDA000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads