nanocore | 34d8743963aa84b8cd1b6b75c788b769b4547b5a899f14ce57b5d49bcaa9deea

General

Target

34d8743963aa84b8cd1b6b75c788b769b4547b5a899f14ce57b5d49bcaa9deea.exe
Size

415KB
MD5

dfd4d73fbb4456ed1bfa2752fd94554f
SHA1

5b7276d56be3c5affabd44e00ea12c4cf8e20fab
SHA256

34d8743963aa84b8cd1b6b75c788b769b4547b5a899f14ce57b5d49bcaa9deea
SHA512

a01e7e8f5a6bad65699040bbc159c70a9bd67a5ce3f8769d25868dac8f0bf8b190d181d6c056e1848361089ffd81d3891582ea7fc6dc3f3bfb8478e8775561e0
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU4:ITNYrnE3bm/CiejewY5vN

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

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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	34d8743963aa84b8cd1b6b75c788b769b4547b5a899f14ce57b5d49bcaa9deea.exe

Executes dropped EXE 1 IoCs

pid	Process
540	ximo2ubzn1i.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-1-5-21-3227495264-2217614367-4027411560-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	34d8743963aa84b8cd1b6b75c788b769b4547b5a899f14ce57b5d49bcaa9deea.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 540 set thread context of 3984	540	ximo2ubzn1i.exe	85

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	34d8743963aa84b8cd1b6b75c788b769b4547b5a899f14ce57b5d49bcaa9deea.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
3984	regasm.exe
3984	regasm.exe
3984	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3984	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3984	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4972 wrote to memory of 540	4972	34d8743963aa84b8cd1b6b75c788b769b4547b5a899f14ce57b5d49bcaa9deea.exe	82
PID 4972 wrote to memory of 540	4972	34d8743963aa84b8cd1b6b75c788b769b4547b5a899f14ce57b5d49bcaa9deea.exe	82
PID 4972 wrote to memory of 540	4972	34d8743963aa84b8cd1b6b75c788b769b4547b5a899f14ce57b5d49bcaa9deea.exe	82
PID 540 wrote to memory of 3984	540	ximo2ubzn1i.exe	85
PID 540 wrote to memory of 3984	540	ximo2ubzn1i.exe	85
PID 540 wrote to memory of 3984	540	ximo2ubzn1i.exe	85
PID 540 wrote to memory of 3984	540	ximo2ubzn1i.exe	85
PID 540 wrote to memory of 3984	540	ximo2ubzn1i.exe	85
PID 540 wrote to memory of 3984	540	ximo2ubzn1i.exe	85
PID 540 wrote to memory of 3984	540	ximo2ubzn1i.exe	85
PID 540 wrote to memory of 3984	540	ximo2ubzn1i.exe	85

C:\Users\Admin\AppData\Local\Temp\34d8743963aa84b8cd1b6b75c788b769b4547b5a899f14ce57b5d49bcaa9deea.exe
"C:\Users\Admin\AppData\Local\Temp\34d8743963aa84b8cd1b6b75c788b769b4547b5a899f14ce57b5d49bcaa9deea.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4972
- 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:540
- - 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:3984

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

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
415KB

MD5
99c6af1ba421fd6f256f8a8e285d1788

SHA1
468c3a6b6abb20beaadb4491bd0df8f0fd3c04eb

SHA256
a49557169cf6ec8b03cf8d736e1123fbbd30ac2bea32b5a73d2f772455c48444

SHA512
2cdbaa48357e9e16fcceeeb6fa36baf1749b2bed38ec1fb59365a3120056bab28d5f427f86561afa522644938a6508e85e7c147864b9cbbaddd0559e9012fff3

Download Submit
memory/540-35-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/540-33-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/540-22-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/540-20-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/3984-28-0x0000000005020000-0x00000000050BC000-memory.dmp

Filesize
624KB

Download
memory/3984-32-0x0000000005ED0000-0x0000000005EDA000-memory.dmp

Filesize
40KB

Download
memory/3984-36-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/3984-31-0x0000000005100000-0x000000000511E000-memory.dmp

Filesize
120KB

Download
memory/3984-30-0x0000000004F60000-0x0000000004F6A000-memory.dmp

Filesize
40KB

Download
memory/3984-27-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/3984-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3984-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3984-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4972-3-0x0000000005030000-0x00000000050C2000-memory.dmp

Filesize
584KB

Download
memory/4972-0-0x00000000746DE000-0x00000000746DF000-memory.dmp

Filesize
4KB

Download
memory/4972-21-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/4972-4-0x00000000746D0000-0x0000000074E80000-memory.dmp

Filesize
7.7MB

Download
memory/4972-6-0x00000000053B0000-0x00000000053EC000-memory.dmp

Filesize
240KB

Download
memory/4972-2-0x00000000055E0000-0x0000000005B84000-memory.dmp

Filesize
5.6MB

Download
memory/4972-1-0x00000000005C0000-0x000000000062E000-memory.dmp

Filesize
440KB

Download
memory/4972-5-0x00000000051C0000-0x00000000051CA000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads