nanocore | 119ff7865bd6961c5bbba298eefa8b922ac36236d0f1aa1b0aa3f2074928cad6

General

Target

119ff7865bd6961c5bbba298eefa8b922ac36236d0f1aa1b0aa3f2074928cad6.exe
Size

280KB
MD5

7135199236838e9d6d9f57318c6cd1ff
SHA1

6fc6e6579b9cd389b55b12730c39f50dbaea5bd9
SHA256

119ff7865bd6961c5bbba298eefa8b922ac36236d0f1aa1b0aa3f2074928cad6
SHA512

b1470abcced7fe1b7c81a87968c442f746675f0e363ae33f19628b52004969672c96a2cc8c9f66c967b90d0e1be5bfdbfb3d9c05ef2edc97498daf02bf32a701
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fB:boSeGUA5YZazpXUmZhZ6J

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

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	119ff7865bd6961c5bbba298eefa8b922ac36236d0f1aa1b0aa3f2074928cad6.exe

Executes dropped EXE 2 IoCs

pid	Process
4736	a1punf5t2of.exe
4496	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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	119ff7865bd6961c5bbba298eefa8b922ac36236d0f1aa1b0aa3f2074928cad6.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 4736 set thread context of 4496	4736	a1punf5t2of.exe	97

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	119ff7865bd6961c5bbba298eefa8b922ac36236d0f1aa1b0aa3f2074928cad6.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
4496	a1punf5t2of.exe
4496	a1punf5t2of.exe
4496	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4496	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4496	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1620 wrote to memory of 4736	1620	119ff7865bd6961c5bbba298eefa8b922ac36236d0f1aa1b0aa3f2074928cad6.exe	96
PID 1620 wrote to memory of 4736	1620	119ff7865bd6961c5bbba298eefa8b922ac36236d0f1aa1b0aa3f2074928cad6.exe	96
PID 1620 wrote to memory of 4736	1620	119ff7865bd6961c5bbba298eefa8b922ac36236d0f1aa1b0aa3f2074928cad6.exe	96
PID 4736 wrote to memory of 4496	4736	a1punf5t2of.exe	97
PID 4736 wrote to memory of 4496	4736	a1punf5t2of.exe	97
PID 4736 wrote to memory of 4496	4736	a1punf5t2of.exe	97
PID 4736 wrote to memory of 4496	4736	a1punf5t2of.exe	97
PID 4736 wrote to memory of 4496	4736	a1punf5t2of.exe	97
PID 4736 wrote to memory of 4496	4736	a1punf5t2of.exe	97
PID 4736 wrote to memory of 4496	4736	a1punf5t2of.exe	97
PID 4736 wrote to memory of 4496	4736	a1punf5t2of.exe	97

C:\Users\Admin\AppData\Local\Temp\119ff7865bd6961c5bbba298eefa8b922ac36236d0f1aa1b0aa3f2074928cad6.exe
"C:\Users\Admin\AppData\Local\Temp\119ff7865bd6961c5bbba298eefa8b922ac36236d0f1aa1b0aa3f2074928cad6.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1620
- 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:4736
- - 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:4496

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
280KB

MD5
88eede7510fd5f94fe0ac62206d1fc86

SHA1
6b05b35f291427023c872199057633b189ee4335

SHA256
59be9a6062fac65e1f7971ca6348f9e4872ba48c6c5fbd4116a921f3c76e0eea

SHA512
d5d7ee6e98f200d4370e77ae0094003e0c3509bc4eb634d5439702317e78caa3e520fb8abfc0b4183c7f4d177f24ec34acaf84465d8a3b1631a0acf27a3441b6

Download Submit
memory/1620-21-0x0000000074DC0000-0x0000000075371000-memory.dmp

Filesize
5.7MB

Download
memory/1620-1-0x0000000074DC0000-0x0000000075371000-memory.dmp

Filesize
5.7MB

Download
memory/1620-2-0x0000000074DC0000-0x0000000075371000-memory.dmp

Filesize
5.7MB

Download
memory/1620-3-0x0000000074DC0000-0x0000000075371000-memory.dmp

Filesize
5.7MB

Download
memory/1620-4-0x0000000074DC2000-0x0000000074DC3000-memory.dmp

Filesize
4KB

Download
memory/1620-5-0x0000000074DC0000-0x0000000075371000-memory.dmp

Filesize
5.7MB

Download
memory/1620-6-0x0000000074DC0000-0x0000000075371000-memory.dmp

Filesize
5.7MB

Download
memory/1620-7-0x0000000074DC0000-0x0000000075371000-memory.dmp

Filesize
5.7MB

Download
memory/1620-0-0x0000000074DC2000-0x0000000074DC3000-memory.dmp

Filesize
4KB

Download
memory/4496-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4496-34-0x0000000074DC0000-0x0000000075371000-memory.dmp

Filesize
5.7MB

Download
memory/4496-40-0x0000000074DC0000-0x0000000075371000-memory.dmp

Filesize
5.7MB

Download
memory/4496-37-0x0000000074DC0000-0x0000000075371000-memory.dmp

Filesize
5.7MB

Download
memory/4496-36-0x0000000074DC0000-0x0000000075371000-memory.dmp

Filesize
5.7MB

Download
memory/4496-33-0x0000000074DC0000-0x0000000075371000-memory.dmp

Filesize
5.7MB

Download
memory/4496-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4496-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4736-22-0x0000000074DC0000-0x0000000075371000-memory.dmp

Filesize
5.7MB

Download
memory/4736-27-0x0000000074DC0000-0x0000000075371000-memory.dmp

Filesize
5.7MB

Download
memory/4736-23-0x0000000074DC0000-0x0000000075371000-memory.dmp

Filesize
5.7MB

Download
memory/4736-26-0x0000000074DC0000-0x0000000075371000-memory.dmp

Filesize
5.7MB

Download
memory/4736-25-0x0000000074DC0000-0x0000000075371000-memory.dmp

Filesize
5.7MB

Download
memory/4736-39-0x0000000074DC0000-0x0000000075371000-memory.dmp

Filesize
5.7MB

Download
memory/4736-24-0x0000000074DC0000-0x0000000075371000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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