nanocore | 4924979330e6155ab5dd38cff79d2de1470da45f0d780a8521d1dc8a06660ca2

General

Target

4924979330e6155ab5dd38cff79d2de1470da45f0d780a8521d1dc8a06660ca2N.exe
Size

254KB
MD5

0dbee687e76990527a34e9c4e7c571e0
SHA1

1ee48537c4277f0ff18d71bbd02c9ddbb75dba35
SHA256

4924979330e6155ab5dd38cff79d2de1470da45f0d780a8521d1dc8a06660ca2
SHA512

c112b0bc5356248eef0b5facc30de3765236c0887be2ff0ae08ebc4ffebd4a6e06f5b7b8ef52213352524f610c877cdda14e64456c228792c8593de7c03dfdc8
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQO3:EeGUA5YZazpXUmZht3

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

Processes:

4924979330e6155ab5dd38cff79d2de1470da45f0d780a8521d1dc8a06660ca2N.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	4924979330e6155ab5dd38cff79d2de1470da45f0d780a8521d1dc8a06660ca2N.exe

Executes dropped EXE 2 IoCs

Processes:

a1punf5t2of.exea1punf5t2of.exe

pid	Process
2816	a1punf5t2of.exe
4704	a1punf5t2of.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

4924979330e6155ab5dd38cff79d2de1470da45f0d780a8521d1dc8a06660ca2N.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	4924979330e6155ab5dd38cff79d2de1470da45f0d780a8521d1dc8a06660ca2N.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

a1punf5t2of.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	a1punf5t2of.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

a1punf5t2of.exe

description	pid	Process	procid_target
PID 2816 set thread context of 4704	2816	a1punf5t2of.exe	99

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

Processes:

4924979330e6155ab5dd38cff79d2de1470da45f0d780a8521d1dc8a06660ca2N.exea1punf5t2of.exea1punf5t2of.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4924979330e6155ab5dd38cff79d2de1470da45f0d780a8521d1dc8a06660ca2N.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

Processes:

a1punf5t2of.exe

pid	Process
4704	a1punf5t2of.exe
4704	a1punf5t2of.exe
4704	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

a1punf5t2of.exe

pid	Process
4704	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

a1punf5t2of.exe

description	pid	Process
Token: SeDebugPrivilege	4704	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

4924979330e6155ab5dd38cff79d2de1470da45f0d780a8521d1dc8a06660ca2N.exea1punf5t2of.exe

description	pid	Process	procid_target
PID 2556 wrote to memory of 2816	2556	4924979330e6155ab5dd38cff79d2de1470da45f0d780a8521d1dc8a06660ca2N.exe	98
PID 2556 wrote to memory of 2816	2556	4924979330e6155ab5dd38cff79d2de1470da45f0d780a8521d1dc8a06660ca2N.exe	98
PID 2556 wrote to memory of 2816	2556	4924979330e6155ab5dd38cff79d2de1470da45f0d780a8521d1dc8a06660ca2N.exe	98
PID 2816 wrote to memory of 4704	2816	a1punf5t2of.exe	99
PID 2816 wrote to memory of 4704	2816	a1punf5t2of.exe	99
PID 2816 wrote to memory of 4704	2816	a1punf5t2of.exe	99
PID 2816 wrote to memory of 4704	2816	a1punf5t2of.exe	99
PID 2816 wrote to memory of 4704	2816	a1punf5t2of.exe	99
PID 2816 wrote to memory of 4704	2816	a1punf5t2of.exe	99
PID 2816 wrote to memory of 4704	2816	a1punf5t2of.exe	99
PID 2816 wrote to memory of 4704	2816	a1punf5t2of.exe	99

C:\Users\Admin\AppData\Local\Temp\4924979330e6155ab5dd38cff79d2de1470da45f0d780a8521d1dc8a06660ca2N.exe
"C:\Users\Admin\AppData\Local\Temp\4924979330e6155ab5dd38cff79d2de1470da45f0d780a8521d1dc8a06660ca2N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2556
- 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:2816
- - 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:4704

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
254KB

MD5
aee6f7ff29e2954a9c8c7d51d5aff7ec

SHA1
1575daf6fde0d91edb4bcd75ed529c3db2170e21

SHA256
72c49f7ca22c3549976724950757825f5c371a4320b25953d1476a37a40d7959

SHA512
56ece42923e37a3d0d3b02940fd32ee32849f8210303b291e5b3b3d91a505c52cf57a870592421d0fa130ffaf0e3db242baebf6e769be6b9aa5901ff9da94667

Download Submit
memory/2556-22-0x0000000075190000-0x0000000075741000-memory.dmp

Filesize
5.7MB

Download
memory/2556-1-0x0000000075190000-0x0000000075741000-memory.dmp

Filesize
5.7MB

Download
memory/2556-2-0x0000000075190000-0x0000000075741000-memory.dmp

Filesize
5.7MB

Download
memory/2556-3-0x0000000075190000-0x0000000075741000-memory.dmp

Filesize
5.7MB

Download
memory/2556-4-0x0000000075192000-0x0000000075193000-memory.dmp

Filesize
4KB

Download
memory/2556-5-0x0000000075190000-0x0000000075741000-memory.dmp

Filesize
5.7MB

Download
memory/2556-6-0x0000000075190000-0x0000000075741000-memory.dmp

Filesize
5.7MB

Download
memory/2556-7-0x0000000075190000-0x0000000075741000-memory.dmp

Filesize
5.7MB

Download
memory/2556-0-0x0000000075192000-0x0000000075193000-memory.dmp

Filesize
4KB

Download
memory/2816-24-0x0000000075190000-0x0000000075741000-memory.dmp

Filesize
5.7MB

Download
memory/2816-23-0x0000000075190000-0x0000000075741000-memory.dmp

Filesize
5.7MB

Download
memory/2816-21-0x0000000075190000-0x0000000075741000-memory.dmp

Filesize
5.7MB

Download
memory/2816-25-0x0000000075190000-0x0000000075741000-memory.dmp

Filesize
5.7MB

Download
memory/2816-26-0x0000000075190000-0x0000000075741000-memory.dmp

Filesize
5.7MB

Download
memory/2816-41-0x0000000075190000-0x0000000075741000-memory.dmp

Filesize
5.7MB

Download
memory/4704-33-0x0000000075190000-0x0000000075741000-memory.dmp

Filesize
5.7MB

Download
memory/4704-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4704-32-0x0000000075190000-0x0000000075741000-memory.dmp

Filesize
5.7MB

Download
memory/4704-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4704-34-0x0000000075190000-0x0000000075741000-memory.dmp

Filesize
5.7MB

Download
memory/4704-36-0x0000000075190000-0x0000000075741000-memory.dmp

Filesize
5.7MB

Download
memory/4704-37-0x0000000075190000-0x0000000075741000-memory.dmp

Filesize
5.7MB

Download
memory/4704-38-0x0000000075190000-0x0000000075741000-memory.dmp

Filesize
5.7MB

Download
memory/4704-39-0x0000000075190000-0x0000000075741000-memory.dmp

Filesize
5.7MB

Download
memory/4704-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4704-42-0x0000000075190000-0x0000000075741000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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