nanocore | ed5afeaf1d9e897dd6f7b828abc156d6e970d95c6cfc20449df332df71024b8b

General

Target

ed5afeaf1d9e897dd6f7b828abc156d6e970d95c6cfc20449df332df71024b8b.exe
Size

255KB
MD5

027fc0df522843848839a97321a52d53
SHA1

57975f68ceb1d5adc990491dd9b81180aae31cd9
SHA256

ed5afeaf1d9e897dd6f7b828abc156d6e970d95c6cfc20449df332df71024b8b
SHA512

9bd98f525829999022a8d88d9128c838f35e0cdd87c590484d3d9299ecad8800671ad257a32b82da2418141430d08f712d07b0a32cb773778d17f9e803771da0
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ+s:EeGUA5YZazpXUmZhls

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
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-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	ed5afeaf1d9e897dd6f7b828abc156d6e970d95c6cfc20449df332df71024b8b.exe

Executes dropped EXE 2 IoCs

pid	Process
804	a1punf5t2of.exe
2940	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-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	ed5afeaf1d9e897dd6f7b828abc156d6e970d95c6cfc20449df332df71024b8b.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 804 set thread context of 2940	804	a1punf5t2of.exe	97

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	ed5afeaf1d9e897dd6f7b828abc156d6e970d95c6cfc20449df332df71024b8b.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
2940	a1punf5t2of.exe
2940	a1punf5t2of.exe
2940	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2940	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2940	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1712 wrote to memory of 804	1712	ed5afeaf1d9e897dd6f7b828abc156d6e970d95c6cfc20449df332df71024b8b.exe	96
PID 1712 wrote to memory of 804	1712	ed5afeaf1d9e897dd6f7b828abc156d6e970d95c6cfc20449df332df71024b8b.exe	96
PID 1712 wrote to memory of 804	1712	ed5afeaf1d9e897dd6f7b828abc156d6e970d95c6cfc20449df332df71024b8b.exe	96
PID 804 wrote to memory of 2940	804	a1punf5t2of.exe	97
PID 804 wrote to memory of 2940	804	a1punf5t2of.exe	97
PID 804 wrote to memory of 2940	804	a1punf5t2of.exe	97
PID 804 wrote to memory of 2940	804	a1punf5t2of.exe	97
PID 804 wrote to memory of 2940	804	a1punf5t2of.exe	97
PID 804 wrote to memory of 2940	804	a1punf5t2of.exe	97
PID 804 wrote to memory of 2940	804	a1punf5t2of.exe	97
PID 804 wrote to memory of 2940	804	a1punf5t2of.exe	97

C:\Users\Admin\AppData\Local\Temp\ed5afeaf1d9e897dd6f7b828abc156d6e970d95c6cfc20449df332df71024b8b.exe
"C:\Users\Admin\AppData\Local\Temp\ed5afeaf1d9e897dd6f7b828abc156d6e970d95c6cfc20449df332df71024b8b.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1712
- 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:804
- - 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:2940

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
255KB

MD5
710e188b7958c19938d3c562404938e0

SHA1
182d2fee423a1144af8b27c6899f1f21cadf0a1a

SHA256
9384530bea530dbf6fdcf8f405946da3421bac8a0621070f04174cd92fc16006

SHA512
506365b80267dd6044556ed43e5e487d157eaa18ce47d6e1caffd74dfbaf6f594fa2324b5cb2d501c5c5956c094abe86b26e2fca6897c8e64be6cd029e6f81d2

Download Submit
memory/804-21-0x0000000075240000-0x00000000757F1000-memory.dmp

Filesize
5.7MB

Download
memory/804-41-0x0000000075240000-0x00000000757F1000-memory.dmp

Filesize
5.7MB

Download
memory/804-29-0x0000000075240000-0x00000000757F1000-memory.dmp

Filesize
5.7MB

Download
memory/804-28-0x0000000075240000-0x00000000757F1000-memory.dmp

Filesize
5.7MB

Download
memory/804-27-0x0000000075240000-0x00000000757F1000-memory.dmp

Filesize
5.7MB

Download
memory/804-26-0x0000000075240000-0x00000000757F1000-memory.dmp

Filesize
5.7MB

Download
memory/804-25-0x0000000075240000-0x00000000757F1000-memory.dmp

Filesize
5.7MB

Download
memory/804-24-0x0000000075240000-0x00000000757F1000-memory.dmp

Filesize
5.7MB

Download
memory/804-23-0x0000000075240000-0x00000000757F1000-memory.dmp

Filesize
5.7MB

Download
memory/1712-6-0x0000000075240000-0x00000000757F1000-memory.dmp

Filesize
5.7MB

Download
memory/1712-22-0x0000000075240000-0x00000000757F1000-memory.dmp

Filesize
5.7MB

Download
memory/1712-7-0x0000000075240000-0x00000000757F1000-memory.dmp

Filesize
5.7MB

Download
memory/1712-0-0x0000000075242000-0x0000000075243000-memory.dmp

Filesize
4KB

Download
memory/1712-5-0x0000000075240000-0x00000000757F1000-memory.dmp

Filesize
5.7MB

Download
memory/1712-4-0x0000000075242000-0x0000000075243000-memory.dmp

Filesize
4KB

Download
memory/1712-3-0x0000000075240000-0x00000000757F1000-memory.dmp

Filesize
5.7MB

Download
memory/1712-2-0x0000000075240000-0x00000000757F1000-memory.dmp

Filesize
5.7MB

Download
memory/1712-1-0x0000000075240000-0x00000000757F1000-memory.dmp

Filesize
5.7MB

Download
memory/2940-32-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2940-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2940-35-0x0000000075240000-0x00000000757F1000-memory.dmp

Filesize
5.7MB

Download
memory/2940-36-0x0000000075240000-0x00000000757F1000-memory.dmp

Filesize
5.7MB

Download
memory/2940-38-0x0000000075240000-0x00000000757F1000-memory.dmp

Filesize
5.7MB

Download
memory/2940-39-0x0000000075240000-0x00000000757F1000-memory.dmp

Filesize
5.7MB

Download
memory/2940-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2940-42-0x0000000075240000-0x00000000757F1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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