nanocore | c2719f4dd8dd6dbe0349bf790edac8ae1d712e686c83c194cbc25b6a1dec23cd

General

Target

c2719f4dd8dd6dbe0349bf790edac8ae1d712e686c83c194cbc25b6a1dec23cdN.exe
Size

255KB
MD5

c4506e7a615e43a0dd48cf769cbf21b0
SHA1

e2b4170138eb614d04eb61303683eb4991c01cb3
SHA256

c2719f4dd8dd6dbe0349bf790edac8ae1d712e686c83c194cbc25b6a1dec23cd
SHA512

ef9750b6d374c88bc0918c481002136b63bbfe7882dfcf9662030a91886e04f3dd0db3227fb0908c9f9a8f93ae8cfbbad84c42049d7381544cb323854d88f1fb
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQST:EeGUA5YZazpXUmZhdT

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

Executes dropped EXE 2 IoCs

pid	Process
2724	a1punf5t2of.exe
2408	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
2772	c2719f4dd8dd6dbe0349bf790edac8ae1d712e686c83c194cbc25b6a1dec23cdN.exe
2724	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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	c2719f4dd8dd6dbe0349bf790edac8ae1d712e686c83c194cbc25b6a1dec23cdN.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 2724 set thread context of 2408	2724	a1punf5t2of.exe	31

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	c2719f4dd8dd6dbe0349bf790edac8ae1d712e686c83c194cbc25b6a1dec23cdN.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
2408	a1punf5t2of.exe
2408	a1punf5t2of.exe
2408	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2408	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2408	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2772 wrote to memory of 2724	2772	c2719f4dd8dd6dbe0349bf790edac8ae1d712e686c83c194cbc25b6a1dec23cdN.exe	30
PID 2772 wrote to memory of 2724	2772	c2719f4dd8dd6dbe0349bf790edac8ae1d712e686c83c194cbc25b6a1dec23cdN.exe	30
PID 2772 wrote to memory of 2724	2772	c2719f4dd8dd6dbe0349bf790edac8ae1d712e686c83c194cbc25b6a1dec23cdN.exe	30
PID 2772 wrote to memory of 2724	2772	c2719f4dd8dd6dbe0349bf790edac8ae1d712e686c83c194cbc25b6a1dec23cdN.exe	30
PID 2772 wrote to memory of 2724	2772	c2719f4dd8dd6dbe0349bf790edac8ae1d712e686c83c194cbc25b6a1dec23cdN.exe	30
PID 2772 wrote to memory of 2724	2772	c2719f4dd8dd6dbe0349bf790edac8ae1d712e686c83c194cbc25b6a1dec23cdN.exe	30
PID 2772 wrote to memory of 2724	2772	c2719f4dd8dd6dbe0349bf790edac8ae1d712e686c83c194cbc25b6a1dec23cdN.exe	30
PID 2724 wrote to memory of 2408	2724	a1punf5t2of.exe	31
PID 2724 wrote to memory of 2408	2724	a1punf5t2of.exe	31
PID 2724 wrote to memory of 2408	2724	a1punf5t2of.exe	31
PID 2724 wrote to memory of 2408	2724	a1punf5t2of.exe	31
PID 2724 wrote to memory of 2408	2724	a1punf5t2of.exe	31
PID 2724 wrote to memory of 2408	2724	a1punf5t2of.exe	31
PID 2724 wrote to memory of 2408	2724	a1punf5t2of.exe	31
PID 2724 wrote to memory of 2408	2724	a1punf5t2of.exe	31
PID 2724 wrote to memory of 2408	2724	a1punf5t2of.exe	31
PID 2724 wrote to memory of 2408	2724	a1punf5t2of.exe	31
PID 2724 wrote to memory of 2408	2724	a1punf5t2of.exe	31
PID 2724 wrote to memory of 2408	2724	a1punf5t2of.exe	31

C:\Users\Admin\AppData\Local\Temp\c2719f4dd8dd6dbe0349bf790edac8ae1d712e686c83c194cbc25b6a1dec23cdN.exe
"C:\Users\Admin\AppData\Local\Temp\c2719f4dd8dd6dbe0349bf790edac8ae1d712e686c83c194cbc25b6a1dec23cdN.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2772
- C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
  "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2724
- - 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:2408

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

System Information Discovery

2

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

\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

Filesize
255KB

MD5
ddc55ee522345a101de9c3720495e67d

SHA1
c4f8b879070ff60ef41a208408c2f00f54eb0c52

SHA256
54f57c20d1481cf960cc6c46e8ed89344ce176bf755a44896d3d5c54b7684db2

SHA512
c127ff96487bbdb2cb7a86289796cd41a570a1ec60dfce0307231d6752d90eb716a17285a7a4f69eb50733cc98e7827de0672f8bf47cd25c5e200f09a53bfeef

Download Submit
memory/2408-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2408-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2408-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2408-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2408-32-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2408-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2408-38-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2408-40-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2724-17-0x0000000074700000-0x0000000074CAB000-memory.dmp

Filesize
5.7MB

Download
memory/2724-42-0x0000000074700000-0x0000000074CAB000-memory.dmp

Filesize
5.7MB

Download
memory/2724-16-0x0000000074700000-0x0000000074CAB000-memory.dmp

Filesize
5.7MB

Download
memory/2724-19-0x0000000074700000-0x0000000074CAB000-memory.dmp

Filesize
5.7MB

Download
memory/2724-20-0x0000000074700000-0x0000000074CAB000-memory.dmp

Filesize
5.7MB

Download
memory/2724-18-0x0000000074700000-0x0000000074CAB000-memory.dmp

Filesize
5.7MB

Download
memory/2772-6-0x0000000074700000-0x0000000074CAB000-memory.dmp

Filesize
5.7MB

Download
memory/2772-0-0x0000000074701000-0x0000000074702000-memory.dmp

Filesize
4KB

Download
memory/2772-5-0x0000000074700000-0x0000000074CAB000-memory.dmp

Filesize
5.7MB

Download
memory/2772-4-0x0000000074700000-0x0000000074CAB000-memory.dmp

Filesize
5.7MB

Download
memory/2772-3-0x0000000074700000-0x0000000074CAB000-memory.dmp

Filesize
5.7MB

Download
memory/2772-2-0x0000000074700000-0x0000000074CAB000-memory.dmp

Filesize
5.7MB

Download
memory/2772-1-0x0000000074700000-0x0000000074CAB000-memory.dmp

Filesize
5.7MB

Download
memory/2772-15-0x0000000074700000-0x0000000074CAB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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