nanocore | 826384807c0348993c782416921adf09f281f8b18aae261d1d30d3c6dd0a6b36

General

Target

826384807c0348993c782416921adf09f281f8b18aae261d1d30d3c6dd0a6b36.exe
Size

413KB
MD5

586c5ac34c86291bac60c8e223aef094
SHA1

80cd750b35f09ecb88a31ca9166a4e3252a14423
SHA256

826384807c0348993c782416921adf09f281f8b18aae261d1d30d3c6dd0a6b36
SHA512

0733293ef0b785d7aa237b640251824ee125eda4c2b0a26d307a3d05d82d1a9ac5d5912438945d9f743decc9eccf4517f17dc9ec5199b7f50d261bd03e4361a0
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUS:ITNYrnE3bm/CiejewY5vR

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

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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	826384807c0348993c782416921adf09f281f8b18aae261d1d30d3c6dd0a6b36.exe

Executes dropped EXE 1 IoCs

pid	Process
4032	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-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	826384807c0348993c782416921adf09f281f8b18aae261d1d30d3c6dd0a6b36.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 4032 set thread context of 840	4032	ximo2ubzn1i.exe	88

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	826384807c0348993c782416921adf09f281f8b18aae261d1d30d3c6dd0a6b36.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
840	regasm.exe
840	regasm.exe
840	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
840	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	840	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4668 wrote to memory of 4032	4668	826384807c0348993c782416921adf09f281f8b18aae261d1d30d3c6dd0a6b36.exe	87
PID 4668 wrote to memory of 4032	4668	826384807c0348993c782416921adf09f281f8b18aae261d1d30d3c6dd0a6b36.exe	87
PID 4668 wrote to memory of 4032	4668	826384807c0348993c782416921adf09f281f8b18aae261d1d30d3c6dd0a6b36.exe	87
PID 4032 wrote to memory of 840	4032	ximo2ubzn1i.exe	88
PID 4032 wrote to memory of 840	4032	ximo2ubzn1i.exe	88
PID 4032 wrote to memory of 840	4032	ximo2ubzn1i.exe	88
PID 4032 wrote to memory of 840	4032	ximo2ubzn1i.exe	88
PID 4032 wrote to memory of 840	4032	ximo2ubzn1i.exe	88
PID 4032 wrote to memory of 840	4032	ximo2ubzn1i.exe	88
PID 4032 wrote to memory of 840	4032	ximo2ubzn1i.exe	88
PID 4032 wrote to memory of 840	4032	ximo2ubzn1i.exe	88

C:\Users\Admin\AppData\Local\Temp\826384807c0348993c782416921adf09f281f8b18aae261d1d30d3c6dd0a6b36.exe
"C:\Users\Admin\AppData\Local\Temp\826384807c0348993c782416921adf09f281f8b18aae261d1d30d3c6dd0a6b36.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4668
- 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:4032
- - 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:840

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
413KB

MD5
69bdb81edea222dbb5c55f03a65f32ca

SHA1
3409fb1003c36685a07bdb70eae9312b787af5bb

SHA256
bb20e03770831ae02afb9ac232ec7f1fb512758d08f563511eca06fd458d4384

SHA512
53db34c71907d75e7ad09a19e8a9e6527fa0d681f52adc82b8cbb3023c814a070f3a61ff0f804b64ffaa5c408ec2a6e752e5295b76bfeaa66ba58a92549d7f16

Download Submit
memory/840-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/840-36-0x0000000074720000-0x0000000074ED0000-memory.dmp

Filesize
7.7MB

Download
memory/840-32-0x00000000067B0000-0x00000000067BA000-memory.dmp

Filesize
40KB

Download
memory/840-31-0x0000000005D50000-0x0000000005D6E000-memory.dmp

Filesize
120KB

Download
memory/840-30-0x0000000005A40000-0x0000000005A4A000-memory.dmp

Filesize
40KB

Download
memory/840-28-0x0000000005910000-0x00000000059AC000-memory.dmp

Filesize
624KB

Download
memory/840-27-0x0000000074720000-0x0000000074ED0000-memory.dmp

Filesize
7.7MB

Download
memory/840-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/840-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4032-22-0x0000000074720000-0x0000000074ED0000-memory.dmp

Filesize
7.7MB

Download
memory/4032-20-0x0000000074720000-0x0000000074ED0000-memory.dmp

Filesize
7.7MB

Download
memory/4032-33-0x0000000074720000-0x0000000074ED0000-memory.dmp

Filesize
7.7MB

Download
memory/4032-35-0x0000000074720000-0x0000000074ED0000-memory.dmp

Filesize
7.7MB

Download
memory/4668-0-0x000000007472E000-0x000000007472F000-memory.dmp

Filesize
4KB

Download
memory/4668-21-0x0000000074720000-0x0000000074ED0000-memory.dmp

Filesize
7.7MB

Download
memory/4668-6-0x0000000005660000-0x000000000569C000-memory.dmp

Filesize
240KB

Download
memory/4668-5-0x0000000005410000-0x000000000541A000-memory.dmp

Filesize
40KB

Download
memory/4668-4-0x0000000074720000-0x0000000074ED0000-memory.dmp

Filesize
7.7MB

Download
memory/4668-3-0x0000000005350000-0x00000000053E2000-memory.dmp

Filesize
584KB

Download
memory/4668-2-0x0000000005A00000-0x0000000005FA4000-memory.dmp

Filesize
5.6MB

Download
memory/4668-1-0x0000000000910000-0x000000000097E000-memory.dmp

Filesize
440KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads