nanocore | 2940a553dcaf4c762ba1f4a4f846ae323ae96bbd60ef8856b94d0ed488c791c6

General

Target

2940a553dcaf4c762ba1f4a4f846ae323ae96bbd60ef8856b94d0ed488c791c6N.exe
Size

415KB
MD5

88f64b4ac931e30d373a1baf67de06c0
SHA1

2ff59bf4a88d3aa1f58140997b7823eacc5e5276
SHA256

2940a553dcaf4c762ba1f4a4f846ae323ae96bbd60ef8856b94d0ed488c791c6
SHA512

6c0eaeb49edef970c8e7a8d177acc819e08b408a52741c8c9a7dd914e1de2776ea751a0fc082add36342e591ad156f1fcc848f5090b5ed0be9ed58f180108eed
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU7i:ITNYrnE3bm/CiejewY5v5

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

[email protected]:46218

178.32.224.116:46218

Mutex

4af74541-e3f1-469c-8af7-efe4071b81cf

Attributes

activate_away_mode
false
backup_connection_host
178.32.224.116
backup_dns_server
buffer_size
65535
build_time
2018-07-28T12:59:38.488799236Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
false
clear_zone_identifier
false
connect_delay
4000
connection_port
46218
default_group
tourex
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
4af74541-e3f1-469c-8af7-efe4071b81cf
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
[email protected]
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

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

Processes:

2940a553dcaf4c762ba1f4a4f846ae323ae96bbd60ef8856b94d0ed488c791c6N.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	2940a553dcaf4c762ba1f4a4f846ae323ae96bbd60ef8856b94d0ed488c791c6N.exe

Executes dropped EXE 1 IoCs

Processes:

ximo2ubzn1i.exe

pid	Process
3088	ximo2ubzn1i.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

2940a553dcaf4c762ba1f4a4f846ae323ae96bbd60ef8856b94d0ed488c791c6N.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	2940a553dcaf4c762ba1f4a4f846ae323ae96bbd60ef8856b94d0ed488c791c6N.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

regasm.exe

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

Suspicious use of SetThreadContext 1 IoCs

Processes:

ximo2ubzn1i.exe

description	pid	Process	procid_target
PID 3088 set thread context of 4036	3088	ximo2ubzn1i.exe	96

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

Processes:

ximo2ubzn1i.exeregasm.exe2940a553dcaf4c762ba1f4a4f846ae323ae96bbd60ef8856b94d0ed488c791c6N.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ximo2ubzn1i.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regasm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2940a553dcaf4c762ba1f4a4f846ae323ae96bbd60ef8856b94d0ed488c791c6N.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

regasm.exe

pid	Process
4036	regasm.exe
4036	regasm.exe
4036	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

regasm.exe

pid	Process
4036	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

regasm.exe

description	pid	Process
Token: SeDebugPrivilege	4036	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

2940a553dcaf4c762ba1f4a4f846ae323ae96bbd60ef8856b94d0ed488c791c6N.exeximo2ubzn1i.exe

description	pid	Process	procid_target
PID 4868 wrote to memory of 3088	4868	2940a553dcaf4c762ba1f4a4f846ae323ae96bbd60ef8856b94d0ed488c791c6N.exe	95
PID 4868 wrote to memory of 3088	4868	2940a553dcaf4c762ba1f4a4f846ae323ae96bbd60ef8856b94d0ed488c791c6N.exe	95
PID 4868 wrote to memory of 3088	4868	2940a553dcaf4c762ba1f4a4f846ae323ae96bbd60ef8856b94d0ed488c791c6N.exe	95
PID 3088 wrote to memory of 4036	3088	ximo2ubzn1i.exe	96
PID 3088 wrote to memory of 4036	3088	ximo2ubzn1i.exe	96
PID 3088 wrote to memory of 4036	3088	ximo2ubzn1i.exe	96
PID 3088 wrote to memory of 4036	3088	ximo2ubzn1i.exe	96
PID 3088 wrote to memory of 4036	3088	ximo2ubzn1i.exe	96
PID 3088 wrote to memory of 4036	3088	ximo2ubzn1i.exe	96
PID 3088 wrote to memory of 4036	3088	ximo2ubzn1i.exe	96
PID 3088 wrote to memory of 4036	3088	ximo2ubzn1i.exe	96

C:\Users\Admin\AppData\Local\Temp\2940a553dcaf4c762ba1f4a4f846ae323ae96bbd60ef8856b94d0ed488c791c6N.exe
"C:\Users\Admin\AppData\Local\Temp\2940a553dcaf4c762ba1f4a4f846ae323ae96bbd60ef8856b94d0ed488c791c6N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4868
- C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe
  "C:\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3088
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\regasm.exe"
    3⤵
    - Checks whether UAC is enabled
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:4036

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\c5e4gxfvd4v\ximo2ubzn1i.exe

Filesize
415KB

MD5
82f9a1399280063e2e4b8f572f92a611

SHA1
b9f86de6b26329eecc4c99b08de02acbd7da1350

SHA256
242438ef6ce44f1046c9e00d7a68896e8d740c31b63c4c9511b29dad7ef8e7c6

SHA512
ae32d41a09a55f804671d86bd595b15240679d1310eaa4827d93d008f4166ae39d5f7130dd01e526de18dd888666a1e38057018b24db8687536883dcd5916180

Download Submit
memory/3088-35-0x0000000075090000-0x0000000075840000-memory.dmp

Filesize
7.7MB

Download
memory/3088-33-0x0000000075090000-0x0000000075840000-memory.dmp

Filesize
7.7MB

Download
memory/3088-22-0x0000000075090000-0x0000000075840000-memory.dmp

Filesize
7.7MB

Download
memory/3088-21-0x0000000075090000-0x0000000075840000-memory.dmp

Filesize
7.7MB

Download
memory/4036-28-0x0000000005840000-0x00000000058DC000-memory.dmp

Filesize
624KB

Download
memory/4036-32-0x00000000064E0000-0x00000000064EA000-memory.dmp

Filesize
40KB

Download
memory/4036-36-0x0000000075090000-0x0000000075840000-memory.dmp

Filesize
7.7MB

Download
memory/4036-31-0x00000000064B0000-0x00000000064CE000-memory.dmp

Filesize
120KB

Download
memory/4036-30-0x0000000005970000-0x000000000597A000-memory.dmp

Filesize
40KB

Download
memory/4036-27-0x0000000075090000-0x0000000075840000-memory.dmp

Filesize
7.7MB

Download
memory/4036-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4036-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4036-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4868-3-0x0000000004DE0000-0x0000000004E72000-memory.dmp

Filesize
584KB

Download
memory/4868-0-0x000000007509E000-0x000000007509F000-memory.dmp

Filesize
4KB

Download
memory/4868-4-0x0000000004DA0000-0x0000000004DAA000-memory.dmp

Filesize
40KB

Download
memory/4868-20-0x0000000075090000-0x0000000075840000-memory.dmp

Filesize
7.7MB

Download
memory/4868-6-0x0000000005940000-0x000000000597C000-memory.dmp

Filesize
240KB

Download
memory/4868-2-0x0000000005390000-0x0000000005934000-memory.dmp

Filesize
5.6MB

Download
memory/4868-1-0x0000000000330000-0x000000000039E000-memory.dmp

Filesize
440KB

Download
memory/4868-5-0x0000000075090000-0x0000000075840000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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