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

Executes dropped EXE 1 IoCs

pid	Process
2652	app.exe

Loads dropped DLL 1 IoCs

pid	Process
2680	c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699ddeN.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-1-5-21-3063565911-2056067323-3330884624-1000\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 2652 set thread context of 2028	2652	app.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 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
2092	schtasks.exe

Suspicious behavior: EnumeratesProcesses 15 IoCs

pid	Process
2680	c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699ddeN.exe
2680	c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699ddeN.exe
2680	c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699ddeN.exe
2680	c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699ddeN.exe
2680	c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699ddeN.exe
2680	c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699ddeN.exe
2652	app.exe
2652	app.exe
2652	app.exe
2652	app.exe
2652	app.exe
2652	app.exe
2028	aspnet_compiler.exe
2028	aspnet_compiler.exe
2028	aspnet_compiler.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2028	aspnet_compiler.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2680	c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699ddeN.exe
Token: SeDebugPrivilege	2652	app.exe
Token: SeDebugPrivilege	2028	aspnet_compiler.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 2680 wrote to memory of 2652	2680	c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699ddeN.exe	31
PID 2680 wrote to memory of 2652	2680	c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699ddeN.exe	31
PID 2680 wrote to memory of 2652	2680	c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699ddeN.exe	31
PID 2680 wrote to memory of 2652	2680	c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699ddeN.exe	31
PID 2652 wrote to memory of 2028	2652	app.exe	32
PID 2652 wrote to memory of 2028	2652	app.exe	32
PID 2652 wrote to memory of 2028	2652	app.exe	32
PID 2652 wrote to memory of 2028	2652	app.exe	32
PID 2652 wrote to memory of 2028	2652	app.exe	32
PID 2652 wrote to memory of 2028	2652	app.exe	32
PID 2652 wrote to memory of 2028	2652	app.exe	32
PID 2652 wrote to memory of 2028	2652	app.exe	32
PID 2652 wrote to memory of 2028	2652	app.exe	32
PID 2028 wrote to memory of 2092	2028	aspnet_compiler.exe	33
PID 2028 wrote to memory of 2092	2028	aspnet_compiler.exe	33
PID 2028 wrote to memory of 2092	2028	aspnet_compiler.exe	33
PID 2028 wrote to memory of 2092	2028	aspnet_compiler.exe	33

C:\Users\Admin\AppData\Local\Temp\c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699ddeN.exe
"C:\Users\Admin\AppData\Local\Temp\c7a5f6fe6042aff8f4b72165e0bcffeea85317f97396a656cc3e984b97699ddeN.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2680
- 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:2652
- - 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:2028
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "ISS Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmpE743.tmp"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:2092

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

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

C:\Users\Admin\AppData\Local\Temp\Cab1BAB.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE743.tmp

Filesize
1KB

MD5
d81eb43d26d4511c44151cba2eb45983

SHA1
135c98e039c6ab35d4e9564f15f9c56dc9dbeb9a

SHA256
a72a8f6434d6b0fb904db5adc8cab891d12c53b4ac1435dfd13df51f84a2d4d0

SHA512
b5895c19159d23a8fa312967e47d0855ac6f8f314f8931f54469b0c0079a22e9e00a5eaf6729761f74d54e111454d49813e658243e920a9c3434a5576cdda721

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

Filesize
589KB

MD5
5429fe3c069fe11dd2c43eac10a7786b

SHA1
95d1a92dae1b6a171872b48190ab253d2dd7e3f2

SHA256
930a6f9bc6b93ada30dd01d5a8fcc1a2c04f141c257fcc39f5d6799d280f833a

SHA512
cba6e77066915c4c32bb71401f47bd758f31157bcd794954d23702d7b0ac9ee3f8559d7780272428bc16c0b6431ebba8d21dc8e2a7865a9d1bb75ab35c882700

Download Submit
memory/2028-54-0x0000000000080000-0x00000000000B8000-memory.dmp

Filesize
224KB

Download
memory/2028-47-0x0000000000080000-0x00000000000B8000-memory.dmp

Filesize
224KB

Download
memory/2028-55-0x0000000000080000-0x00000000000B8000-memory.dmp

Filesize
224KB

Download
memory/2028-59-0x0000000000080000-0x00000000000B8000-memory.dmp

Filesize
224KB

Download
memory/2028-62-0x0000000000080000-0x00000000000B8000-memory.dmp

Filesize
224KB

Download
memory/2028-50-0x0000000000080000-0x00000000000B8000-memory.dmp

Filesize
224KB

Download
memory/2028-51-0x0000000000080000-0x00000000000B8000-memory.dmp

Filesize
224KB

Download
memory/2028-52-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2028-49-0x0000000000080000-0x00000000000B8000-memory.dmp

Filesize
224KB

Download
memory/2652-63-0x00000000743B0000-0x000000007495B000-memory.dmp

Filesize
5.7MB

Download
memory/2652-45-0x00000000743B0000-0x000000007495B000-memory.dmp

Filesize
5.7MB

Download
memory/2652-44-0x00000000743B0000-0x000000007495B000-memory.dmp

Filesize
5.7MB

Download
memory/2652-43-0x00000000743B0000-0x000000007495B000-memory.dmp

Filesize
5.7MB

Download
memory/2652-31-0x00000000743B0000-0x000000007495B000-memory.dmp

Filesize
5.7MB

Download
memory/2680-30-0x00000000743B0000-0x000000007495B000-memory.dmp

Filesize
5.7MB

Download
memory/2680-9-0x00000000743B0000-0x000000007495B000-memory.dmp

Filesize
5.7MB

Download
memory/2680-0-0x00000000743B1000-0x00000000743B2000-memory.dmp

Filesize
4KB

Download
memory/2680-11-0x00000000743B0000-0x000000007495B000-memory.dmp

Filesize
5.7MB

Download
memory/2680-10-0x00000000743B0000-0x000000007495B000-memory.dmp

Filesize
5.7MB

Download
memory/2680-12-0x00000000743B0000-0x000000007495B000-memory.dmp

Filesize
5.7MB

Download
memory/2680-8-0x00000000743B0000-0x000000007495B000-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