nanocore | c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699dde

General

Target

c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699ddeN.exe
Size

583KB
MD5

c92878c540eb52d57ecea214efc86a10
SHA1

7c18d96b3a100974178d710936f0d84b46848ead
SHA256

c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699dde
SHA512

40173be61e42a2c867a206f90a7c0d93dd7a9091a57a8ca3baf5b3df43f3c355df8c0969e280d24ea16ab6f198050055416054f31c4c61becf47dfebb7032941
SSDEEP

12288:AJEtZwtz+niqE2PEbQdCFTp+rgRNyA55IxJ5sO:0dtP2cbksTpugRNJI5/

Score

10^/10

nanocore discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

91.236.116.142:5888

Mutex

d995ed82-bf13-4043-b564-f5f89f8c5209

Attributes

activate_away_mode
true
backup_connection_host
91.236.116.142
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2017-01-07T03:01:54.729778636Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
5888
default_group
Spy
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
d995ed82-bf13-4043-b564-f5f89f8c5209
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
91.236.116.142
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

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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699ddeN.exe

Executes dropped EXE 1 IoCs

pid	Process
4092	app.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-1-5-21-4050598569-1597076380-177084960-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Application = "C:\\Users\\Admin\\AppData\\Roaming\\app.exe"	c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699ddeN.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4092 set thread context of 4772	4092	app.exe	92

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 4 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	c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699ddeN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	app.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	aspnet_compiler.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4792	schtasks.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

pid	Process
2872	c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699ddeN.exe
2872	c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699ddeN.exe
2872	c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699ddeN.exe
2872	c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699ddeN.exe
2872	c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699ddeN.exe
2872	c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699ddeN.exe
4092	app.exe
4092	app.exe
4092	app.exe
4092	app.exe
4092	app.exe
4092	app.exe
4772	aspnet_compiler.exe
4772	aspnet_compiler.exe
4772	aspnet_compiler.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4772	aspnet_compiler.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2872	c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699ddeN.exe
Token: SeDebugPrivilege	4092	app.exe
Token: SeDebugPrivilege	4772	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2872 wrote to memory of 4092	2872	c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699ddeN.exe	91
PID 2872 wrote to memory of 4092	2872	c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699ddeN.exe	91
PID 2872 wrote to memory of 4092	2872	c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699ddeN.exe	91
PID 4092 wrote to memory of 4772	4092	app.exe	92
PID 4092 wrote to memory of 4772	4092	app.exe	92
PID 4092 wrote to memory of 4772	4092	app.exe	92
PID 4092 wrote to memory of 4772	4092	app.exe	92
PID 4092 wrote to memory of 4772	4092	app.exe	92
PID 4092 wrote to memory of 4772	4092	app.exe	92
PID 4092 wrote to memory of 4772	4092	app.exe	92
PID 4092 wrote to memory of 4772	4092	app.exe	92
PID 4772 wrote to memory of 4792	4772	aspnet_compiler.exe	93
PID 4772 wrote to memory of 4792	4772	aspnet_compiler.exe	93
PID 4772 wrote to memory of 4792	4772	aspnet_compiler.exe	93

C:\Users\Admin\AppData\Local\Temp\c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699ddeN.exe
"C:\Users\Admin\AppData\Local\Temp\c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699ddeN.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2872
- C:\Users\Admin\AppData\Roaming\app.exe
  "C:\Users\Admin\AppData\Roaming\app.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4092
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\aspnet_compiler.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4772
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "AGP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpCB0B.tmp"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:4792

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

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

C:\Users\Admin\AppData\Local\Temp\tmpCB0B.tmp

Filesize
1KB

MD5
d81eb43d26d4511c44151cba2eb45983

SHA1
135c98e039c6ab35d4e9564f15f9c56dc9dbeb9a

SHA256
a72a8f6434d6b0fb904db5adc8cab891d12c53b4ac1435dfd13df51f84a2d4d0

SHA512
b5895c19159d23a8fa312967e47d0855ac6f8f314f8931f54469b0c0079a22e9e00a5eaf6729761f74d54e111454d49813e658243e920a9c3434a5576cdda721

Download Submit
C:\Users\Admin\AppData\Roaming\app.exe

Filesize
592KB

MD5
49563d0450288afba724bce28713a41a

SHA1
d39ff8492e376f593b65d45aae76549f7f643183

SHA256
5365cdbd3badd02d29db3072daffd7cf4ca9c9546f16ead8a90fd846a4cf19fd

SHA512
f66c09699f1c8faf4ce8c04dc1adc115e08c53599ff0a20f5cb3f5e7b4e4448b9e2958f9e677447d12eb2fa940e0242f614858269981564eef450d0f0c4cee0a

Download Submit
memory/2872-0-0x00000000750B2000-0x00000000750B3000-memory.dmp

Filesize
4KB

Download
memory/2872-1-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download
memory/2872-2-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download
memory/2872-5-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download
memory/2872-6-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download
memory/2872-7-0x00000000750B2000-0x00000000750B3000-memory.dmp

Filesize
4KB

Download
memory/2872-8-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download
memory/2872-31-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download
memory/4092-32-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download
memory/4092-33-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download
memory/4092-34-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download
memory/4092-41-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download
memory/4092-30-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download
memory/4772-36-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4772-37-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download
memory/4772-40-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download
memory/4772-39-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download
memory/4772-46-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download
memory/4772-47-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download
memory/4772-48-0x00000000750B0000-0x0000000075661000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads