nanocore | 9eefff730740529db9660461fd7e4fa0467c3cbaa14bd926fb622b2cbd6c4fa9

General

Target

9eefff730740529db9660461fd7e4fa0467c3cbaa14bd926fb622b2cbd6c4fa9N.exe
Size

416KB
MD5

dda76d55b5f01c1fe62e539c7f702710
SHA1

2ba830b95e85a522b19b26e3f4b433499e83e4f2
SHA256

9eefff730740529db9660461fd7e4fa0467c3cbaa14bd926fb622b2cbd6c4fa9
SHA512

1da539179cd8531214cfa977599f71fa29fb0215a9233b35fdefb75be712878b558722a15866473589af94d6b864f4dd0df684a5fbbd23bad398aecc1bc6c5d1
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU7d:ITNYrnE3bm/CiejewY5va

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
Nanocore family
nanocore

Executes dropped EXE 1 IoCs

pid	Process
2856	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

pid	Process
2388	9eefff730740529db9660461fd7e4fa0467c3cbaa14bd926fb622b2cbd6c4fa9N.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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	9eefff730740529db9660461fd7e4fa0467c3cbaa14bd926fb622b2cbd6c4fa9N.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2856 set thread context of 2928	2856	ximo2ubzn1i.exe	30

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9eefff730740529db9660461fd7e4fa0467c3cbaa14bd926fb622b2cbd6c4fa9N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ximo2ubzn1i.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regasm.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2928	regasm.exe
2928	regasm.exe
2928	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2928	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2928	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 2856	2388	9eefff730740529db9660461fd7e4fa0467c3cbaa14bd926fb622b2cbd6c4fa9N.exe	29
PID 2388 wrote to memory of 2856	2388	9eefff730740529db9660461fd7e4fa0467c3cbaa14bd926fb622b2cbd6c4fa9N.exe	29
PID 2388 wrote to memory of 2856	2388	9eefff730740529db9660461fd7e4fa0467c3cbaa14bd926fb622b2cbd6c4fa9N.exe	29
PID 2388 wrote to memory of 2856	2388	9eefff730740529db9660461fd7e4fa0467c3cbaa14bd926fb622b2cbd6c4fa9N.exe	29
PID 2856 wrote to memory of 2928	2856	ximo2ubzn1i.exe	30
PID 2856 wrote to memory of 2928	2856	ximo2ubzn1i.exe	30
PID 2856 wrote to memory of 2928	2856	ximo2ubzn1i.exe	30
PID 2856 wrote to memory of 2928	2856	ximo2ubzn1i.exe	30
PID 2856 wrote to memory of 2928	2856	ximo2ubzn1i.exe	30
PID 2856 wrote to memory of 2928	2856	ximo2ubzn1i.exe	30
PID 2856 wrote to memory of 2928	2856	ximo2ubzn1i.exe	30
PID 2856 wrote to memory of 2928	2856	ximo2ubzn1i.exe	30
PID 2856 wrote to memory of 2928	2856	ximo2ubzn1i.exe	30
PID 2856 wrote to memory of 2928	2856	ximo2ubzn1i.exe	30
PID 2856 wrote to memory of 2928	2856	ximo2ubzn1i.exe	30
PID 2856 wrote to memory of 2928	2856	ximo2ubzn1i.exe	30

C:\Users\Admin\AppData\Local\Temp\9eefff730740529db9660461fd7e4fa0467c3cbaa14bd926fb622b2cbd6c4fa9N.exe
"C:\Users\Admin\AppData\Local\Temp\9eefff730740529db9660461fd7e4fa0467c3cbaa14bd926fb622b2cbd6c4fa9N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2388
- 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:2856
- - 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:2928

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

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

\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe

Filesize
416KB

MD5
4b2e497c6e3e8f45423d34db69a7c7c3

SHA1
b4e864f60cf065ab32257d67e51d842dc14eb067

SHA256
3dd75cde61dab2dff6de612bf99d017505a4c43082cb30e6404a6d933ca53f15

SHA512
032441e4c8fe53d493ef030b2e0ce389c97d1494fb4ee0c78104e6ee39247ad68740ee774255ac2a3b375d51aeca15093d066f10fca5ae51edc17ef9b39f41f8

Download Submit
memory/2388-1-0x0000000000A00000-0x0000000000A6E000-memory.dmp

Filesize
440KB

Download
memory/2388-2-0x00000000744A0000-0x0000000074B8E000-memory.dmp

Filesize
6.9MB

Download
memory/2388-3-0x0000000002000000-0x000000000203C000-memory.dmp

Filesize
240KB

Download
memory/2388-12-0x00000000744A0000-0x0000000074B8E000-memory.dmp

Filesize
6.9MB

Download
memory/2388-0-0x00000000744AE000-0x00000000744AF000-memory.dmp

Filesize
4KB

Download
memory/2856-33-0x00000000744A0000-0x0000000074B8E000-memory.dmp

Filesize
6.9MB

Download
memory/2856-15-0x00000000744A0000-0x0000000074B8E000-memory.dmp

Filesize
6.9MB

Download
memory/2856-14-0x00000000744A0000-0x0000000074B8E000-memory.dmp

Filesize
6.9MB

Download
memory/2856-13-0x00000000008E0000-0x000000000094E000-memory.dmp

Filesize
440KB

Download
memory/2856-34-0x00000000744A0000-0x0000000074B8E000-memory.dmp

Filesize
6.9MB

Download
memory/2928-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2928-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2928-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2928-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2928-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2928-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2928-30-0x00000000002F0000-0x00000000002FA000-memory.dmp

Filesize
40KB

Download
memory/2928-31-0x0000000000440000-0x000000000045E000-memory.dmp

Filesize
120KB

Download
memory/2928-32-0x00000000004A0000-0x00000000004AA000-memory.dmp

Filesize
40KB

Download
memory/2928-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2928-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads