nanocore | 589b47f979dd9e861e5b62b94bb7dba6d7e08123db16f0bf2cc0dfe9d104b7ef

General

Target

589b47f979dd9e861e5b62b94bb7dba6d7e08123db16f0bf2cc0dfe9d104b7ef.exe
Size

417KB
MD5

f01fe3cd58e8a3f96f349f98778e0ed3
SHA1

e9623a2603aa10b12bc4582a5589b53bf2a8aeb6
SHA256

589b47f979dd9e861e5b62b94bb7dba6d7e08123db16f0bf2cc0dfe9d104b7ef
SHA512

5da8582a0352b8f0cfd56a3445713c3d889054f48fe51bb6f1451902fc41b86a5204713f3389409985c1ed01ef6e99d769ae9a57d0cf34d5b0a501496f8afe0c
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU70:ITNYrnE3bm/CiejewY5vD

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-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	589b47f979dd9e861e5b62b94bb7dba6d7e08123db16f0bf2cc0dfe9d104b7ef.exe

Executes dropped EXE 1 IoCs

pid	Process
4900	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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	589b47f979dd9e861e5b62b94bb7dba6d7e08123db16f0bf2cc0dfe9d104b7ef.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 4900 set thread context of 1280	4900	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	589b47f979dd9e861e5b62b94bb7dba6d7e08123db16f0bf2cc0dfe9d104b7ef.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
1280	regasm.exe
1280	regasm.exe
1280	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1280	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1280	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2404 wrote to memory of 4900	2404	589b47f979dd9e861e5b62b94bb7dba6d7e08123db16f0bf2cc0dfe9d104b7ef.exe	83
PID 2404 wrote to memory of 4900	2404	589b47f979dd9e861e5b62b94bb7dba6d7e08123db16f0bf2cc0dfe9d104b7ef.exe	83
PID 2404 wrote to memory of 4900	2404	589b47f979dd9e861e5b62b94bb7dba6d7e08123db16f0bf2cc0dfe9d104b7ef.exe	83
PID 4900 wrote to memory of 1280	4900	ximo2ubzn1i.exe	84
PID 4900 wrote to memory of 1280	4900	ximo2ubzn1i.exe	84
PID 4900 wrote to memory of 1280	4900	ximo2ubzn1i.exe	84
PID 4900 wrote to memory of 1280	4900	ximo2ubzn1i.exe	84
PID 4900 wrote to memory of 1280	4900	ximo2ubzn1i.exe	84
PID 4900 wrote to memory of 1280	4900	ximo2ubzn1i.exe	84
PID 4900 wrote to memory of 1280	4900	ximo2ubzn1i.exe	84
PID 4900 wrote to memory of 1280	4900	ximo2ubzn1i.exe	84

C:\Users\Admin\AppData\Local\Temp\589b47f979dd9e861e5b62b94bb7dba6d7e08123db16f0bf2cc0dfe9d104b7ef.exe
"C:\Users\Admin\AppData\Local\Temp\589b47f979dd9e861e5b62b94bb7dba6d7e08123db16f0bf2cc0dfe9d104b7ef.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2404
- 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:4900
- - 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:1280

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
417KB

MD5
d4b1650f3b911e2ef34c1769b2c381c2

SHA1
475dbe60d348f0eb70a063acac41b54812ff08c7

SHA256
6903a6c31488456a2634c85fb2e0260f0ac518a5b0aa8c7c317bfd27c953e065

SHA512
c3f15668788291e12a85d51dc94b4cbada5dad1441530d210ca9767693ec29efd007957996d62c0e4e2f71b08af21905f24589f1cd1dbd3f27dc3b88255ebc18

Download Submit
memory/1280-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1280-36-0x0000000075260000-0x0000000075A10000-memory.dmp

Filesize
7.7MB

Download
memory/1280-32-0x00000000060C0000-0x00000000060CA000-memory.dmp

Filesize
40KB

Download
memory/1280-31-0x0000000005350000-0x000000000536E000-memory.dmp

Filesize
120KB

Download
memory/1280-30-0x0000000005340000-0x000000000534A000-memory.dmp

Filesize
40KB

Download
memory/1280-28-0x00000000051F0000-0x000000000528C000-memory.dmp

Filesize
624KB

Download
memory/1280-27-0x0000000075260000-0x0000000075A10000-memory.dmp

Filesize
7.7MB

Download
memory/1280-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1280-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2404-5-0x0000000005040000-0x000000000504A000-memory.dmp

Filesize
40KB

Download
memory/2404-21-0x0000000075260000-0x0000000075A10000-memory.dmp

Filesize
7.7MB

Download
memory/2404-6-0x0000000005A40000-0x0000000005A7C000-memory.dmp

Filesize
240KB

Download
memory/2404-0-0x000000007526E000-0x000000007526F000-memory.dmp

Filesize
4KB

Download
memory/2404-4-0x0000000075260000-0x0000000075A10000-memory.dmp

Filesize
7.7MB

Download
memory/2404-3-0x0000000004E80000-0x0000000004F12000-memory.dmp

Filesize
584KB

Download
memory/2404-2-0x0000000005390000-0x0000000005934000-memory.dmp

Filesize
5.6MB

Download
memory/2404-1-0x0000000000430000-0x000000000049E000-memory.dmp

Filesize
440KB

Download
memory/4900-22-0x0000000075260000-0x0000000075A10000-memory.dmp

Filesize
7.7MB

Download
memory/4900-20-0x0000000075260000-0x0000000075A10000-memory.dmp

Filesize
7.7MB

Download
memory/4900-33-0x0000000075260000-0x0000000075A10000-memory.dmp

Filesize
7.7MB

Download
memory/4900-35-0x0000000075260000-0x0000000075A10000-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