nanocore | ce7b5266dc9158f1fdd178ee33e15f507f557db955e4959989a36c2639be47fd

General

Target

$PLUGINSDIR/hxgll.dll
Size

49KB
MD5

6aee0715f2773579719c70bcbd2eddaf
SHA1

1e378c3e71b2184ce3b0fe97176f9b8c0d3d04df
SHA256

3479563cfd7304bb2d59c5b0ce3ec754a0ac915d147a73f8f577e4a5f4c6dcb7
SHA512

4aed1dd163ca3454dc6e327a6a2feebae1cfd2da632ec20fca98c85825fc838ae3e318528b5774e65008fd1bcbabb1d0bcf29a1855a5498d555644876521813e
SSDEEP

768:Il7vgO3mGd7I7QyV16v0D+Achno0vZdKT/UY0TvjhTx6utxLhRlZ:Il7tUQyV1C0aPomZ4LU1TvjhF6YxLhZ

Score

10^/10

nanocore discovery evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

178.170.138.163:5626

Mutex

01f9d977-6605-495e-941a-753d3cd6dc0b

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-02-27T13:54:38.807349736Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
true
connect_delay
4000
connection_port
5626
default_group
4Maticross.
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
01f9d977-6605-495e-941a-753d3cd6dc0b
mutex_timeout
5000
prevent_system_sleep
true
primary_connection_host
178.170.138.163
primary_dns_server
8.8.8.8
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
Blocklisted process makes network request 8 IoCs

Processes:

rundll32.exe

flow pid process

2 788 rundll32.exe
3 788 rundll32.exe
6 788 rundll32.exe
7 788 rundll32.exe
8 788 rundll32.exe
9 788 rundll32.exe
10 788 rundll32.exe
11 788 rundll32.exe
Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

rundll32.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA rundll32.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

rundll32.exe

description pid process target process

PID 2900 set thread context of 788 2900 rundll32.exe rundll32.exe

flow	pid	process
2	788	rundll32.exe
3	788	rundll32.exe
6	788	rundll32.exe
7	788	rundll32.exe
8	788	rundll32.exe
9	788	rundll32.exe
10	788	rundll32.exe
11	788	rundll32.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

description	pid	process	target process
PID 2900 set thread context of 788	2900	rundll32.exe	rundll32.exe

System Location Discovery: System Language Discovery 1 TTPs 2 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:

rundll32.exerundll32.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

rundll32.exe

pid process

788 rundll32.exe
788 rundll32.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

rundll32.exe

pid process

788 rundll32.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

rundll32.exe

description pid process

Token: SeDebugPrivilege 788 rundll32.exe

pid	process
788	rundll32.exe
788	rundll32.exe

pid	process
788	rundll32.exe

description	pid	process
Token: SeDebugPrivilege	788	rundll32.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	process	target process
PID 2868 wrote to memory of 2900	2868	rundll32.exe	rundll32.exe
PID 2868 wrote to memory of 2900	2868	rundll32.exe	rundll32.exe
PID 2868 wrote to memory of 2900	2868	rundll32.exe	rundll32.exe
PID 2868 wrote to memory of 2900	2868	rundll32.exe	rundll32.exe
PID 2868 wrote to memory of 2900	2868	rundll32.exe	rundll32.exe
PID 2868 wrote to memory of 2900	2868	rundll32.exe	rundll32.exe
PID 2868 wrote to memory of 2900	2868	rundll32.exe	rundll32.exe
PID 2900 wrote to memory of 788	2900	rundll32.exe	rundll32.exe
PID 2900 wrote to memory of 788	2900	rundll32.exe	rundll32.exe
PID 2900 wrote to memory of 788	2900	rundll32.exe	rundll32.exe
PID 2900 wrote to memory of 788	2900	rundll32.exe	rundll32.exe
PID 2900 wrote to memory of 788	2900	rundll32.exe	rundll32.exe
PID 2900 wrote to memory of 788	2900	rundll32.exe	rundll32.exe
PID 2900 wrote to memory of 788	2900	rundll32.exe	rundll32.exe
PID 2900 wrote to memory of 788	2900	rundll32.exe	rundll32.exe
PID 2900 wrote to memory of 788	2900	rundll32.exe	rundll32.exe
PID 2900 wrote to memory of 788	2900	rundll32.exe	rundll32.exe
PID 2900 wrote to memory of 788	2900	rundll32.exe	rundll32.exe
PID 2900 wrote to memory of 788	2900	rundll32.exe	rundll32.exe
PID 2900 wrote to memory of 788	2900	rundll32.exe	rundll32.exe
PID 2900 wrote to memory of 788	2900	rundll32.exe	rundll32.exe

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\hxgll.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2868
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\hxgll.dll,#1
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2900
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\$PLUGINSDIR\hxgll.dll,#1
    3⤵
    - Blocklisted process makes network request
    - Checks whether UAC is enabled
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:788

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/788-8-0x0000000074340000-0x00000000748EB000-memory.dmp

Filesize
5.7MB

Download
memory/788-10-0x0000000074340000-0x00000000748EB000-memory.dmp

Filesize
5.7MB

Download
memory/788-6-0x0000000074341000-0x0000000074342000-memory.dmp

Filesize
4KB

Download
memory/788-3-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/788-1-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/788-7-0x0000000074340000-0x00000000748EB000-memory.dmp

Filesize
5.7MB

Download
memory/788-5-0x0000000000400000-0x0000000000448000-memory.dmp

Filesize
288KB

Download
memory/788-16-0x0000000074340000-0x00000000748EB000-memory.dmp

Filesize
5.7MB

Download
memory/788-12-0x0000000074340000-0x00000000748EB000-memory.dmp

Filesize
5.7MB

Download
memory/788-11-0x0000000074340000-0x00000000748EB000-memory.dmp

Filesize
5.7MB

Download
memory/788-9-0x0000000074340000-0x00000000748EB000-memory.dmp

Filesize
5.7MB

Download
memory/788-14-0x0000000074340000-0x00000000748EB000-memory.dmp

Filesize
5.7MB

Download
memory/788-15-0x0000000074340000-0x00000000748EB000-memory.dmp

Filesize
5.7MB

Download
memory/2900-0-0x0000000074DBC000-0x0000000074DBE000-memory.dmp

Filesize
8KB

Download

Analysis

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