nanocore | de13814c9a7e4f166566e22c4c658d569357a763bc1d26cc3c6064ac3c88a9a5

General

Target

de13814c9a7e4f166566e22c4c658d569357a763bc1d26cc3c6064ac3c88a9a5.exe
Size

255KB
MD5

fdd90df9b33875f2be633730c9b93a98
SHA1

48497d3ab4f7052b97a8f0279b07c90f5643055f
SHA256

de13814c9a7e4f166566e22c4c658d569357a763bc1d26cc3c6064ac3c88a9a5
SHA512

f2b23b757ec153d6399dd7a04f2a6e177cbcbc2f4912ce77726b1481bac53e17f32311be0204b4b8997fa0dba175b50cd02a8d10b02447bd60a5ef3f94201d35
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQS4A:EeGUA5YZazpXUmZh94A

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
2780	a1punf5t2of.exe
1748	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
3068	de13814c9a7e4f166566e22c4c658d569357a763bc1d26cc3c6064ac3c88a9a5.exe
2780	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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	de13814c9a7e4f166566e22c4c658d569357a763bc1d26cc3c6064ac3c88a9a5.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 2780 set thread context of 1748	2780	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	de13814c9a7e4f166566e22c4c658d569357a763bc1d26cc3c6064ac3c88a9a5.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
1748	a1punf5t2of.exe
1748	a1punf5t2of.exe
1748	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1748	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1748	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3068 wrote to memory of 2780	3068	de13814c9a7e4f166566e22c4c658d569357a763bc1d26cc3c6064ac3c88a9a5.exe	30
PID 3068 wrote to memory of 2780	3068	de13814c9a7e4f166566e22c4c658d569357a763bc1d26cc3c6064ac3c88a9a5.exe	30
PID 3068 wrote to memory of 2780	3068	de13814c9a7e4f166566e22c4c658d569357a763bc1d26cc3c6064ac3c88a9a5.exe	30
PID 3068 wrote to memory of 2780	3068	de13814c9a7e4f166566e22c4c658d569357a763bc1d26cc3c6064ac3c88a9a5.exe	30
PID 3068 wrote to memory of 2780	3068	de13814c9a7e4f166566e22c4c658d569357a763bc1d26cc3c6064ac3c88a9a5.exe	30
PID 3068 wrote to memory of 2780	3068	de13814c9a7e4f166566e22c4c658d569357a763bc1d26cc3c6064ac3c88a9a5.exe	30
PID 3068 wrote to memory of 2780	3068	de13814c9a7e4f166566e22c4c658d569357a763bc1d26cc3c6064ac3c88a9a5.exe	30
PID 2780 wrote to memory of 1748	2780	a1punf5t2of.exe	31
PID 2780 wrote to memory of 1748	2780	a1punf5t2of.exe	31
PID 2780 wrote to memory of 1748	2780	a1punf5t2of.exe	31
PID 2780 wrote to memory of 1748	2780	a1punf5t2of.exe	31
PID 2780 wrote to memory of 1748	2780	a1punf5t2of.exe	31
PID 2780 wrote to memory of 1748	2780	a1punf5t2of.exe	31
PID 2780 wrote to memory of 1748	2780	a1punf5t2of.exe	31
PID 2780 wrote to memory of 1748	2780	a1punf5t2of.exe	31
PID 2780 wrote to memory of 1748	2780	a1punf5t2of.exe	31
PID 2780 wrote to memory of 1748	2780	a1punf5t2of.exe	31
PID 2780 wrote to memory of 1748	2780	a1punf5t2of.exe	31
PID 2780 wrote to memory of 1748	2780	a1punf5t2of.exe	31

C:\Users\Admin\AppData\Local\Temp\de13814c9a7e4f166566e22c4c658d569357a763bc1d26cc3c6064ac3c88a9a5.exe
"C:\Users\Admin\AppData\Local\Temp\de13814c9a7e4f166566e22c4c658d569357a763bc1d26cc3c6064ac3c88a9a5.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3068
- 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:2780
- - 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:1748

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
256KB

MD5
bd21694f9c261ae3b73651f1692c04f4

SHA1
1cd26f3bed318a504fee83d7daa134804a037462

SHA256
9cad865bbfe3b41752099b6a23f40a6fb07ca7102a9e25b6df130b0786295a06

SHA512
9a97d45b2e0cbf519009fcf2bf9f9e9521bdbd17d8bfff5eea54dc843d9cc1c1c002b0b6933337c9cd32535e6251957ae2df0216040fcd6cdbc807c38f918832

Download Submit
memory/1748-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1748-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1748-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1748-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1748-37-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1748-39-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1748-32-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1748-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2780-17-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download
memory/2780-18-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download
memory/2780-19-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download
memory/2780-15-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download
memory/2780-41-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download
memory/3068-0-0x0000000074051000-0x0000000074052000-memory.dmp

Filesize
4KB

Download
memory/3068-16-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download
memory/3068-6-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download
memory/3068-5-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download
memory/3068-4-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download
memory/3068-3-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download
memory/3068-2-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download
memory/3068-1-0x0000000074050000-0x00000000745FB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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