nanocore | 6a74362139ecac3f27f7d199965301be557a75bdc3db16efabfb44a977f345f6

General

Target

6a74362139ecac3f27f7d199965301be557a75bdc3db16efabfb44a977f345f6.exe
Size

282KB
MD5

0db1a05d8dbc73507a535b122cbfff85
SHA1

5a4fca1ed651f9ce19f19a2bc51868ee9b95e1ef
SHA256

6a74362139ecac3f27f7d199965301be557a75bdc3db16efabfb44a977f345f6
SHA512

95541c726c5773850aba1e875ae5415b8e34e02fd96a738c494aeece6d2b4f7b601536b54d07333cc9f4744107a7baf67b2142bbf121328ae4ae32c6b2363c93
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkfh:boSeGUA5YZazpXUmZhZ6SA

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

sysupdate24.ddns.net:45400

Mutex

ae82ab7f-db07-49ee-9d2b-76075d76f37f

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
buffer_size
65535
build_time
2020-04-24T17:41:53.492468936Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
45400
default_group
Default
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
ae82ab7f-db07-49ee-9d2b-76075d76f37f
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
sysupdate24.ddns.net
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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	6a74362139ecac3f27f7d199965301be557a75bdc3db16efabfb44a977f345f6.exe

Executes dropped EXE 2 IoCs

pid	Process
3496	a1punf5t2of.exe
1128	a1punf5t2of.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-1-5-21-2718105630-359604950-2820636825-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	6a74362139ecac3f27f7d199965301be557a75bdc3db16efabfb44a977f345f6.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	a1punf5t2of.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3496 set thread context of 1128	3496	a1punf5t2of.exe	90

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	6a74362139ecac3f27f7d199965301be557a75bdc3db16efabfb44a977f345f6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1128	a1punf5t2of.exe
1128	a1punf5t2of.exe
1128	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1128	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1128	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2792 wrote to memory of 3496	2792	6a74362139ecac3f27f7d199965301be557a75bdc3db16efabfb44a977f345f6.exe	85
PID 2792 wrote to memory of 3496	2792	6a74362139ecac3f27f7d199965301be557a75bdc3db16efabfb44a977f345f6.exe	85
PID 2792 wrote to memory of 3496	2792	6a74362139ecac3f27f7d199965301be557a75bdc3db16efabfb44a977f345f6.exe	85
PID 3496 wrote to memory of 1128	3496	a1punf5t2of.exe	90
PID 3496 wrote to memory of 1128	3496	a1punf5t2of.exe	90
PID 3496 wrote to memory of 1128	3496	a1punf5t2of.exe	90
PID 3496 wrote to memory of 1128	3496	a1punf5t2of.exe	90
PID 3496 wrote to memory of 1128	3496	a1punf5t2of.exe	90
PID 3496 wrote to memory of 1128	3496	a1punf5t2of.exe	90
PID 3496 wrote to memory of 1128	3496	a1punf5t2of.exe	90
PID 3496 wrote to memory of 1128	3496	a1punf5t2of.exe	90

C:\Users\Admin\AppData\Local\Temp\6a74362139ecac3f27f7d199965301be557a75bdc3db16efabfb44a977f345f6.exe
"C:\Users\Admin\AppData\Local\Temp\6a74362139ecac3f27f7d199965301be557a75bdc3db16efabfb44a977f345f6.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2792
- C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
  "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3496
- - C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
    "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
    3⤵
    - Executes dropped EXE
    - Checks whether UAC is enabled
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:1128

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\b1b2dqljdx3\a1punf5t2of.exe

Filesize
282KB

MD5
2bb40783f776c8e287801c3b7929164b

SHA1
df1d0f34845d6b93453c394724a47cc363738167

SHA256
9110fe38eb26da6da9a9309d65d98422023f7d345ea17224e53f47ee17ccc210

SHA512
6dcdb450c9547501ba402a76c65f1492727a66fd605bd92293d715c09d9dadca9f88c46a098ec414564f0239fe633b832b4e3a540395d8552f3c6fda5bb076c3

Download Submit
memory/1128-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1128-40-0x0000000074F90000-0x0000000075541000-memory.dmp

Filesize
5.7MB

Download
memory/1128-37-0x0000000074F90000-0x0000000075541000-memory.dmp

Filesize
5.7MB

Download
memory/1128-36-0x0000000074F90000-0x0000000075541000-memory.dmp

Filesize
5.7MB

Download
memory/1128-33-0x0000000074F90000-0x0000000075541000-memory.dmp

Filesize
5.7MB

Download
memory/1128-34-0x0000000074F90000-0x0000000075541000-memory.dmp

Filesize
5.7MB

Download
memory/1128-32-0x0000000074F90000-0x0000000075541000-memory.dmp

Filesize
5.7MB

Download
memory/1128-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1128-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2792-6-0x0000000074F90000-0x0000000075541000-memory.dmp

Filesize
5.7MB

Download
memory/2792-4-0x0000000074F92000-0x0000000074F93000-memory.dmp

Filesize
4KB

Download
memory/2792-1-0x0000000074F90000-0x0000000075541000-memory.dmp

Filesize
5.7MB

Download
memory/2792-2-0x0000000074F90000-0x0000000075541000-memory.dmp

Filesize
5.7MB

Download
memory/2792-3-0x0000000074F90000-0x0000000075541000-memory.dmp

Filesize
5.7MB

Download
memory/2792-5-0x0000000074F90000-0x0000000075541000-memory.dmp

Filesize
5.7MB

Download
memory/2792-21-0x0000000074F90000-0x0000000075541000-memory.dmp

Filesize
5.7MB

Download
memory/2792-7-0x0000000074F90000-0x0000000075541000-memory.dmp

Filesize
5.7MB

Download
memory/2792-0-0x0000000074F92000-0x0000000074F93000-memory.dmp

Filesize
4KB

Download
memory/3496-23-0x0000000074F90000-0x0000000075541000-memory.dmp

Filesize
5.7MB

Download
memory/3496-22-0x0000000074F90000-0x0000000075541000-memory.dmp

Filesize
5.7MB

Download
memory/3496-26-0x0000000074F90000-0x0000000075541000-memory.dmp

Filesize
5.7MB

Download
memory/3496-25-0x0000000074F90000-0x0000000075541000-memory.dmp

Filesize
5.7MB

Download
memory/3496-39-0x0000000074F90000-0x0000000075541000-memory.dmp

Filesize
5.7MB

Download
memory/3496-24-0x0000000074F90000-0x0000000075541000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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