nanocore | bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039

General

Target

bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039.exe
Size

281KB
MD5

60a3c1bf8400e832360b4c404eebbb25
SHA1

e2970e1d1de3f8fd68bdac2fc71066816e97ccc3
SHA256

bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039
SHA512

995906245e3cebc0f7fad72ac8e6bc1f19fe74fde06e0fbd1fcbeaf140cdc5ab0f3faa925b8e818df54108e6d94a445544dae579350cdf02d83f97438c736f1e
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkfA:boSeGUA5YZazpXUmZhZ6SZ

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

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:

bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039.exe

Executes dropped EXE 2 IoCs

Processes:

a1punf5t2of.exea1punf5t2of.exe

pid	Process
4544	a1punf5t2of.exe
4612	a1punf5t2of.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039.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 4544 set thread context of 4612	4544	a1punf5t2of.exe	87

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:

a1punf5t2of.exebebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039.exea1punf5t2of.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

a1punf5t2of.exe

pid	Process
4612	a1punf5t2of.exe
4612	a1punf5t2of.exe
4612	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

a1punf5t2of.exe

pid	Process
4612	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

a1punf5t2of.exe

description	pid	Process
Token: SeDebugPrivilege	4612	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039.exea1punf5t2of.exe

description	pid	Process	procid_target
PID 1628 wrote to memory of 4544	1628	bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039.exe	86
PID 1628 wrote to memory of 4544	1628	bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039.exe	86
PID 1628 wrote to memory of 4544	1628	bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039.exe	86
PID 4544 wrote to memory of 4612	4544	a1punf5t2of.exe	87
PID 4544 wrote to memory of 4612	4544	a1punf5t2of.exe	87
PID 4544 wrote to memory of 4612	4544	a1punf5t2of.exe	87
PID 4544 wrote to memory of 4612	4544	a1punf5t2of.exe	87
PID 4544 wrote to memory of 4612	4544	a1punf5t2of.exe	87
PID 4544 wrote to memory of 4612	4544	a1punf5t2of.exe	87
PID 4544 wrote to memory of 4612	4544	a1punf5t2of.exe	87
PID 4544 wrote to memory of 4612	4544	a1punf5t2of.exe	87

C:\Users\Admin\AppData\Local\Temp\bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039.exe
"C:\Users\Admin\AppData\Local\Temp\bebd382e9c72923418a9833a255db89040539dd34378c791b4fd67de7b70d039.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1628
- 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:4544
- - 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:4612

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
281KB

MD5
3cec51d6a0b9991867bd06beb7ab8542

SHA1
249446824df1e75c9384b0b60c446551c961fd72

SHA256
0ea43fcfe300fc5ae78a8de79b833db1b0c02638e750db95dd6faeffb72a6fc2

SHA512
31b10870a663faa9d57aa1a450f77bf14dcaa011a9b52bab6b829cee1ac260995d20af3e8c84ace2b6ad8215c1dcc46ed1c5b2631406fefc51c32e9e097fe7f6

Download Submit
memory/1628-21-0x0000000074B00000-0x00000000750B1000-memory.dmp

Filesize
5.7MB

Download
memory/1628-2-0x0000000074B00000-0x00000000750B1000-memory.dmp

Filesize
5.7MB

Download
memory/1628-1-0x0000000074B00000-0x00000000750B1000-memory.dmp

Filesize
5.7MB

Download
memory/1628-3-0x0000000074B00000-0x00000000750B1000-memory.dmp

Filesize
5.7MB

Download
memory/1628-4-0x0000000074B02000-0x0000000074B03000-memory.dmp

Filesize
4KB

Download
memory/1628-5-0x0000000074B00000-0x00000000750B1000-memory.dmp

Filesize
5.7MB

Download
memory/1628-6-0x0000000074B00000-0x00000000750B1000-memory.dmp

Filesize
5.7MB

Download
memory/1628-7-0x0000000074B00000-0x00000000750B1000-memory.dmp

Filesize
5.7MB

Download
memory/1628-0-0x0000000074B02000-0x0000000074B03000-memory.dmp

Filesize
4KB

Download
memory/4544-26-0x0000000074B00000-0x00000000750B1000-memory.dmp

Filesize
5.7MB

Download
memory/4544-22-0x0000000074B00000-0x00000000750B1000-memory.dmp

Filesize
5.7MB

Download
memory/4544-25-0x0000000074B00000-0x00000000750B1000-memory.dmp

Filesize
5.7MB

Download
memory/4544-24-0x0000000074B00000-0x00000000750B1000-memory.dmp

Filesize
5.7MB

Download
memory/4544-23-0x0000000074B00000-0x00000000750B1000-memory.dmp

Filesize
5.7MB

Download
memory/4544-27-0x0000000074B00000-0x00000000750B1000-memory.dmp

Filesize
5.7MB

Download
memory/4544-42-0x0000000074B00000-0x00000000750B1000-memory.dmp

Filesize
5.7MB

Download
memory/4612-34-0x0000000074B00000-0x00000000750B1000-memory.dmp

Filesize
5.7MB

Download
memory/4612-35-0x0000000074B00000-0x00000000750B1000-memory.dmp

Filesize
5.7MB

Download
memory/4612-33-0x0000000074B00000-0x00000000750B1000-memory.dmp

Filesize
5.7MB

Download
memory/4612-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4612-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4612-37-0x0000000074B00000-0x00000000750B1000-memory.dmp

Filesize
5.7MB

Download
memory/4612-38-0x0000000074B00000-0x00000000750B1000-memory.dmp

Filesize
5.7MB

Download
memory/4612-39-0x0000000074B00000-0x00000000750B1000-memory.dmp

Filesize
5.7MB

Download
memory/4612-40-0x0000000074B00000-0x00000000750B1000-memory.dmp

Filesize
5.7MB

Download
memory/4612-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4612-43-0x0000000074B00000-0x00000000750B1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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