nanocore | 4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2

General

Target

4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe
Size

1.4MB
MD5

a4e035dbc5397108d58757794d9af056
SHA1

1937d9c9d40d7ee6b2b3cbf1b262e7ac4dd1f182
SHA256

4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2
SHA512

ff5b77c1df2e32da741366ed91e1f30dbd4d34622e5cf4a81177a5e00952fd9116ac083ce5ee17a5a364b7a4c0a494952d410d7f680645848e1f169fb810f20c
SSDEEP

24576:5tb20pkaCqT5TBWgNQ7aMReTgoN4ymWDF4SfmycIvf+CaV6AJ:KVg5tQ7aweTg8bDFzfmycAf+r5J

Score

10^/10

nanocore discovery keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

refund2me.mywire.org:1608

papilo.2waky.com:1608

Mutex

f4d12157-3501-471d-9cc3-84ceb32d59c6

Attributes

activate_away_mode
true
backup_connection_host
papilo.2waky.com
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-02-21T19:54:07.288722436Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1608
default_group
Refund
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
f4d12157-3501-471d-9cc3-84ceb32d59c6
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
refund2me.mywire.org
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

Drops startup file 1 IoCs

Processes:

4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\RAVBg64.url	4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe

description	pid	Process	procid_target
PID 2384 set thread context of 2076	2384	4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe	30

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:

4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exeMSBuild.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 17 IoCs

Processes:

MSBuild.exe4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe

pid	Process
2076	MSBuild.exe
2076	MSBuild.exe
2076	MSBuild.exe
2384	4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe
2384	4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe
2384	4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe
2384	4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe
2384	4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe
2384	4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe
2384	4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe
2384	4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe
2384	4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe
2384	4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe
2384	4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe
2384	4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe
2384	4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe
2384	4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

MSBuild.exe

pid	Process
2076	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

MSBuild.exe

description	pid	Process
Token: SeDebugPrivilege	2076	MSBuild.exe

Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe

pid	Process
2384	4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe
2384	4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe
2384	4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe

Suspicious use of SendNotifyMessage 3 IoCs

Processes:

4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe

pid	Process
2384	4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe
2384	4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe
2384	4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe

description	pid	Process	procid_target
PID 2384 wrote to memory of 2076	2384	4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe	30
PID 2384 wrote to memory of 2076	2384	4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe	30
PID 2384 wrote to memory of 2076	2384	4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe	30
PID 2384 wrote to memory of 2076	2384	4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe	30
PID 2384 wrote to memory of 2076	2384	4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe	30
PID 2384 wrote to memory of 2076	2384	4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe	30

C:\Users\Admin\AppData\Local\Temp\4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe
"C:\Users\Admin\AppData\Local\Temp\4cfef91ce41dbffd4822fed070997552994beb7a020529635f96b349a00d6ac2.exe"
1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2384
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
  "C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v2.0.50727\\\\MSBuild.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:2076

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2076-16-0x0000000074200000-0x00000000747AB000-memory.dmp

Filesize
5.7MB

Download
memory/2076-19-0x0000000074200000-0x00000000747AB000-memory.dmp

Filesize
5.7MB

Download
memory/2076-5-0x00000000000C0000-0x00000000000F8000-memory.dmp

Filesize
224KB

Download
memory/2076-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2076-24-0x0000000074200000-0x00000000747AB000-memory.dmp

Filesize
5.7MB

Download
memory/2076-13-0x00000000000C0000-0x00000000000F8000-memory.dmp

Filesize
224KB

Download
memory/2076-23-0x0000000074200000-0x00000000747AB000-memory.dmp

Filesize
5.7MB

Download
memory/2076-7-0x00000000000C0000-0x00000000000F8000-memory.dmp

Filesize
224KB

Download
memory/2076-14-0x00000000000C0000-0x00000000000F8000-memory.dmp

Filesize
224KB

Download
memory/2076-17-0x0000000074200000-0x00000000747AB000-memory.dmp

Filesize
5.7MB

Download
memory/2076-15-0x0000000074201000-0x0000000074202000-memory.dmp

Filesize
4KB

Download
memory/2076-20-0x0000000074200000-0x00000000747AB000-memory.dmp

Filesize
5.7MB

Download
memory/2076-21-0x0000000074200000-0x00000000747AB000-memory.dmp

Filesize
5.7MB

Download
memory/2076-22-0x0000000074200000-0x00000000747AB000-memory.dmp

Filesize
5.7MB

Download
memory/2384-4-0x00000000011F0000-0x0000000001256000-memory.dmp

Filesize
408KB

Download
memory/2384-3-0x00000000008B0000-0x0000000000916000-memory.dmp

Filesize
408KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads