nanocore | a0653e5a1da3e5c09f50b54463e54971ad2977ae7641dbd2878ae54113b5516b

General

Target

a0653e5a1da3e5c09f50b54463e54971ad2977ae7641dbd2878ae54113b5516bN.exe
Size

280KB
MD5

3f82bab43b9b193ca90b031eb2f4f280
SHA1

5d99c72d714b86d56dfcf5ac6c4d22fad35f2ba7
SHA256

a0653e5a1da3e5c09f50b54463e54971ad2977ae7641dbd2878ae54113b5516b
SHA512

56dd98c1084e8da31fbd4b5848986fc3402ccfe5b578968f9612a3ef9ecfc9dd774968f35eb13eba3b518a10db6f04cc12f8e521aae8a5b0beaa821a7f2ca4ad
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fB:boSeGUA5YZazpXUmZhZ6J

Score

10^/10

nanocore defense_evasion discovery 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
2892	a1punf5t2of.exe
2724	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
2628	a0653e5a1da3e5c09f50b54463e54971ad2977ae7641dbd2878ae54113b5516bN.exe
2892	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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	a0653e5a1da3e5c09f50b54463e54971ad2977ae7641dbd2878ae54113b5516bN.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

defense_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 2892 set thread context of 2724	2892	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	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a0653e5a1da3e5c09f50b54463e54971ad2977ae7641dbd2878ae54113b5516bN.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2724	a1punf5t2of.exe
2724	a1punf5t2of.exe
2724	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2724	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2724	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2628 wrote to memory of 2892	2628	a0653e5a1da3e5c09f50b54463e54971ad2977ae7641dbd2878ae54113b5516bN.exe	31
PID 2628 wrote to memory of 2892	2628	a0653e5a1da3e5c09f50b54463e54971ad2977ae7641dbd2878ae54113b5516bN.exe	31
PID 2628 wrote to memory of 2892	2628	a0653e5a1da3e5c09f50b54463e54971ad2977ae7641dbd2878ae54113b5516bN.exe	31
PID 2628 wrote to memory of 2892	2628	a0653e5a1da3e5c09f50b54463e54971ad2977ae7641dbd2878ae54113b5516bN.exe	31
PID 2628 wrote to memory of 2892	2628	a0653e5a1da3e5c09f50b54463e54971ad2977ae7641dbd2878ae54113b5516bN.exe	31
PID 2628 wrote to memory of 2892	2628	a0653e5a1da3e5c09f50b54463e54971ad2977ae7641dbd2878ae54113b5516bN.exe	31
PID 2628 wrote to memory of 2892	2628	a0653e5a1da3e5c09f50b54463e54971ad2977ae7641dbd2878ae54113b5516bN.exe	31
PID 2892 wrote to memory of 2724	2892	a1punf5t2of.exe	32
PID 2892 wrote to memory of 2724	2892	a1punf5t2of.exe	32
PID 2892 wrote to memory of 2724	2892	a1punf5t2of.exe	32
PID 2892 wrote to memory of 2724	2892	a1punf5t2of.exe	32
PID 2892 wrote to memory of 2724	2892	a1punf5t2of.exe	32
PID 2892 wrote to memory of 2724	2892	a1punf5t2of.exe	32
PID 2892 wrote to memory of 2724	2892	a1punf5t2of.exe	32
PID 2892 wrote to memory of 2724	2892	a1punf5t2of.exe	32
PID 2892 wrote to memory of 2724	2892	a1punf5t2of.exe	32
PID 2892 wrote to memory of 2724	2892	a1punf5t2of.exe	32
PID 2892 wrote to memory of 2724	2892	a1punf5t2of.exe	32
PID 2892 wrote to memory of 2724	2892	a1punf5t2of.exe	32

C:\Users\Admin\AppData\Local\Temp\a0653e5a1da3e5c09f50b54463e54971ad2977ae7641dbd2878ae54113b5516bN.exe
"C:\Users\Admin\AppData\Local\Temp\a0653e5a1da3e5c09f50b54463e54971ad2977ae7641dbd2878ae54113b5516bN.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2628
- 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:2892
- - 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:2724

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
280KB

MD5
ed19d357034d3c0fa8d8c0018b48a214

SHA1
77593db15422012d33550a7cb49ce2cabfc827e9

SHA256
29166ec0bd3e1c26fe31b63531fe05a65b497235ff4a3864ade7d286673af1c9

SHA512
e1cce8e04f14333f59dc906bdec2e1fc957573eb22a1ced5c5ef633c433f2232b3a3a6ddf484ad3451723e0e7296b05c7eaac2b24e8364f5afddd05af642e72d

Download Submit
memory/2628-0-0x0000000074531000-0x0000000074532000-memory.dmp

Filesize
4KB

Download
memory/2628-1-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/2628-2-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/2628-3-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/2628-4-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/2628-5-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/2628-13-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/2724-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2724-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2724-37-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2724-39-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2724-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2724-32-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2724-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2724-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2892-19-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/2892-16-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/2892-15-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/2892-18-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/2892-17-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download
memory/2892-41-0x0000000074530000-0x0000000074ADB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads