nanocore | 4ec280ad769ff95e77868ea111bce4e16986c0eb177aa9382cb39b895bb3f206

General

Target

4ec280ad769ff95e77868ea111bce4e16986c0eb177aa9382cb39b895bb3f206.exe
Size

279KB
MD5

994a3919eed25f9a3c83823b002f7674
SHA1

649ef09e6f6db43b27bde0a093649868f3b9f8d7
SHA256

4ec280ad769ff95e77868ea111bce4e16986c0eb177aa9382cb39b895bb3f206
SHA512

0f6b5963bc4a16377c8efd4b36a70335280734d8c7773c9b7634a217bb9c2ada0391b81e555699d6a5444fb147954543df5ad85e950dd17b4f4bc35dd42741e0
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fr:boSeGUA5YZazpXUmZhZ6z

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
2796	a1punf5t2of.exe
2588	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
3004	4ec280ad769ff95e77868ea111bce4e16986c0eb177aa9382cb39b895bb3f206.exe
2796	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-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	4ec280ad769ff95e77868ea111bce4e16986c0eb177aa9382cb39b895bb3f206.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 2796 set thread context of 2588	2796	a1punf5t2of.exe	32

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	4ec280ad769ff95e77868ea111bce4e16986c0eb177aa9382cb39b895bb3f206.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
2588	a1punf5t2of.exe
2588	a1punf5t2of.exe
2588	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2588	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2588	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3004 wrote to memory of 2796	3004	4ec280ad769ff95e77868ea111bce4e16986c0eb177aa9382cb39b895bb3f206.exe	31
PID 3004 wrote to memory of 2796	3004	4ec280ad769ff95e77868ea111bce4e16986c0eb177aa9382cb39b895bb3f206.exe	31
PID 3004 wrote to memory of 2796	3004	4ec280ad769ff95e77868ea111bce4e16986c0eb177aa9382cb39b895bb3f206.exe	31
PID 3004 wrote to memory of 2796	3004	4ec280ad769ff95e77868ea111bce4e16986c0eb177aa9382cb39b895bb3f206.exe	31
PID 3004 wrote to memory of 2796	3004	4ec280ad769ff95e77868ea111bce4e16986c0eb177aa9382cb39b895bb3f206.exe	31
PID 3004 wrote to memory of 2796	3004	4ec280ad769ff95e77868ea111bce4e16986c0eb177aa9382cb39b895bb3f206.exe	31
PID 3004 wrote to memory of 2796	3004	4ec280ad769ff95e77868ea111bce4e16986c0eb177aa9382cb39b895bb3f206.exe	31
PID 2796 wrote to memory of 2588	2796	a1punf5t2of.exe	32
PID 2796 wrote to memory of 2588	2796	a1punf5t2of.exe	32
PID 2796 wrote to memory of 2588	2796	a1punf5t2of.exe	32
PID 2796 wrote to memory of 2588	2796	a1punf5t2of.exe	32
PID 2796 wrote to memory of 2588	2796	a1punf5t2of.exe	32
PID 2796 wrote to memory of 2588	2796	a1punf5t2of.exe	32
PID 2796 wrote to memory of 2588	2796	a1punf5t2of.exe	32
PID 2796 wrote to memory of 2588	2796	a1punf5t2of.exe	32
PID 2796 wrote to memory of 2588	2796	a1punf5t2of.exe	32
PID 2796 wrote to memory of 2588	2796	a1punf5t2of.exe	32
PID 2796 wrote to memory of 2588	2796	a1punf5t2of.exe	32
PID 2796 wrote to memory of 2588	2796	a1punf5t2of.exe	32

C:\Users\Admin\AppData\Local\Temp\4ec280ad769ff95e77868ea111bce4e16986c0eb177aa9382cb39b895bb3f206.exe
"C:\Users\Admin\AppData\Local\Temp\4ec280ad769ff95e77868ea111bce4e16986c0eb177aa9382cb39b895bb3f206.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3004
- 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:2796
- - 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:2588

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
279KB

MD5
9d5001007bbaa4bff061fb364587600a

SHA1
d0d8365b921b0bdf5d189fc35ddf00f9d4e4cea4

SHA256
e81ff3a4d3587508f65871ca6fbef06794ef7594e689ec533e1846a91d2b5d49

SHA512
223cc42d178b2032c047b893b17f5a72d4c5ea80782b63efec78ffc681cbf9ea8ac004fa1c5342e05e5deebc5d6a9ad3c07730216e827fdbc16f7871641e7a64

Download Submit
memory/2588-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2588-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2588-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2588-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2588-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2588-32-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2588-37-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2588-39-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2796-17-0x0000000074720000-0x0000000074CCB000-memory.dmp

Filesize
5.7MB

Download
memory/2796-18-0x0000000074720000-0x0000000074CCB000-memory.dmp

Filesize
5.7MB

Download
memory/2796-19-0x0000000074720000-0x0000000074CCB000-memory.dmp

Filesize
5.7MB

Download
memory/2796-16-0x0000000074720000-0x0000000074CCB000-memory.dmp

Filesize
5.7MB

Download
memory/2796-41-0x0000000074720000-0x0000000074CCB000-memory.dmp

Filesize
5.7MB

Download
memory/3004-0-0x0000000074721000-0x0000000074722000-memory.dmp

Filesize
4KB

Download
memory/3004-15-0x0000000074720000-0x0000000074CCB000-memory.dmp

Filesize
5.7MB

Download
memory/3004-6-0x0000000074720000-0x0000000074CCB000-memory.dmp

Filesize
5.7MB

Download
memory/3004-5-0x0000000074720000-0x0000000074CCB000-memory.dmp

Filesize
5.7MB

Download
memory/3004-4-0x0000000074720000-0x0000000074CCB000-memory.dmp

Filesize
5.7MB

Download
memory/3004-3-0x0000000074720000-0x0000000074CCB000-memory.dmp

Filesize
5.7MB

Download
memory/3004-2-0x0000000074720000-0x0000000074CCB000-memory.dmp

Filesize
5.7MB

Download
memory/3004-1-0x0000000074720000-0x0000000074CCB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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