nanocore | faed28b17ef427152783268ed1df3b7db6ab2830795764cee773a1a428ccfc52

General

Target

faed28b17ef427152783268ed1df3b7db6ab2830795764cee773a1a428ccfc52.exe
Size

279KB
MD5

b276f624b96081503edc837d38ac7eb4
SHA1

9eed38bc5e8cde3df88ce59086f269e2f9c45f50
SHA256

faed28b17ef427152783268ed1df3b7db6ab2830795764cee773a1a428ccfc52
SHA512

bb0ac0463e981e381eb416b8b812c598bd68f70b37b8c111012c20b29c4b50b610eecdfbe4d2f21badd5d700ed7a9eddf0b8056ad31cc01d72bc13dfd80637ef
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fh:boSeGUA5YZazpXUmZhZ6p

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
2884	a1punf5t2of.exe
2704	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
2400	faed28b17ef427152783268ed1df3b7db6ab2830795764cee773a1a428ccfc52.exe
2884	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"	faed28b17ef427152783268ed1df3b7db6ab2830795764cee773a1a428ccfc52.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 2884 set thread context of 2704	2884	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	faed28b17ef427152783268ed1df3b7db6ab2830795764cee773a1a428ccfc52.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
2704	a1punf5t2of.exe
2704	a1punf5t2of.exe
2704	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2704	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2704	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2400 wrote to memory of 2884	2400	faed28b17ef427152783268ed1df3b7db6ab2830795764cee773a1a428ccfc52.exe	31
PID 2400 wrote to memory of 2884	2400	faed28b17ef427152783268ed1df3b7db6ab2830795764cee773a1a428ccfc52.exe	31
PID 2400 wrote to memory of 2884	2400	faed28b17ef427152783268ed1df3b7db6ab2830795764cee773a1a428ccfc52.exe	31
PID 2400 wrote to memory of 2884	2400	faed28b17ef427152783268ed1df3b7db6ab2830795764cee773a1a428ccfc52.exe	31
PID 2400 wrote to memory of 2884	2400	faed28b17ef427152783268ed1df3b7db6ab2830795764cee773a1a428ccfc52.exe	31
PID 2400 wrote to memory of 2884	2400	faed28b17ef427152783268ed1df3b7db6ab2830795764cee773a1a428ccfc52.exe	31
PID 2400 wrote to memory of 2884	2400	faed28b17ef427152783268ed1df3b7db6ab2830795764cee773a1a428ccfc52.exe	31
PID 2884 wrote to memory of 2704	2884	a1punf5t2of.exe	32
PID 2884 wrote to memory of 2704	2884	a1punf5t2of.exe	32
PID 2884 wrote to memory of 2704	2884	a1punf5t2of.exe	32
PID 2884 wrote to memory of 2704	2884	a1punf5t2of.exe	32
PID 2884 wrote to memory of 2704	2884	a1punf5t2of.exe	32
PID 2884 wrote to memory of 2704	2884	a1punf5t2of.exe	32
PID 2884 wrote to memory of 2704	2884	a1punf5t2of.exe	32
PID 2884 wrote to memory of 2704	2884	a1punf5t2of.exe	32
PID 2884 wrote to memory of 2704	2884	a1punf5t2of.exe	32
PID 2884 wrote to memory of 2704	2884	a1punf5t2of.exe	32
PID 2884 wrote to memory of 2704	2884	a1punf5t2of.exe	32
PID 2884 wrote to memory of 2704	2884	a1punf5t2of.exe	32

C:\Users\Admin\AppData\Local\Temp\faed28b17ef427152783268ed1df3b7db6ab2830795764cee773a1a428ccfc52.exe
"C:\Users\Admin\AppData\Local\Temp\faed28b17ef427152783268ed1df3b7db6ab2830795764cee773a1a428ccfc52.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2400
- 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:2884
- - 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:2704

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
8eba86614d7c3047a0c74199a7aa591d

SHA1
ffd1b5c846c38655d9b091adb7cd59c1126a2d4d

SHA256
026eb602fe2af41b765fbb5c1e562ea5a17cb797c9ab714d7a216d5235d13de6

SHA512
fcfbf01e16cd90aa68bebc38e0822ee60d917c0a7e9614f154a9b55fd5149a8f58a83ac910073238bb38de24cfeaf56c0ac2dee03da9c889b71b963c476b2abf

Download Submit
memory/2400-0-0x0000000074D41000-0x0000000074D42000-memory.dmp

Filesize
4KB

Download
memory/2400-1-0x0000000074D40000-0x00000000752EB000-memory.dmp

Filesize
5.7MB

Download
memory/2400-2-0x0000000074D40000-0x00000000752EB000-memory.dmp

Filesize
5.7MB

Download
memory/2400-3-0x0000000074D40000-0x00000000752EB000-memory.dmp

Filesize
5.7MB

Download
memory/2400-4-0x0000000074D40000-0x00000000752EB000-memory.dmp

Filesize
5.7MB

Download
memory/2400-5-0x0000000074D40000-0x00000000752EB000-memory.dmp

Filesize
5.7MB

Download
memory/2400-13-0x0000000074D40000-0x00000000752EB000-memory.dmp

Filesize
5.7MB

Download
memory/2704-32-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2704-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2704-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2704-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2704-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2704-39-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2704-37-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2704-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2884-19-0x0000000074CC0000-0x000000007526B000-memory.dmp

Filesize
5.7MB

Download
memory/2884-16-0x0000000074CC0000-0x000000007526B000-memory.dmp

Filesize
5.7MB

Download
memory/2884-15-0x0000000074CC0000-0x000000007526B000-memory.dmp

Filesize
5.7MB

Download
memory/2884-18-0x0000000074CC0000-0x000000007526B000-memory.dmp

Filesize
5.7MB

Download
memory/2884-17-0x0000000074CC0000-0x000000007526B000-memory.dmp

Filesize
5.7MB

Download
memory/2884-41-0x0000000074CC0000-0x000000007526B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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