nanocore | 7e71c79883eb025596762b4e0bf86b447039079dfe510ccf13a383b612575fa6

Analysis

max time kernel
141s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
22/03/2025, 06:25

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General

Target

3e8acfab95493518077e0028fd0f2dcc.exe
Size

418KB
MD5

3e8acfab95493518077e0028fd0f2dcc
SHA1

916709a0aab1d58c686999f2bdc894e63dc7699a
SHA256

0a5a53bdc5eee30ec63ba27249253d0ad2224bfc7bf3fc790642427a545d2b1f
SHA512

fde4cfa600e96f292996b779814e32ea4b98b45b7ac117f1aa2a98b4d09bdcbcb3cce6602bd8037cd184c12fbc937e73c7d3aeb088bae982e301ebe3bfa8be80
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUwbvl:ITNYrnE3bm/CiejewY5vXN

Score

10^/10

nanocore defense_evasion discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

[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-1-5-21-805952410-2104024357-1716932545-1000\Control Panel\International\Geo\Nation	3e8acfab95493518077e0028fd0f2dcc.exe

Executes dropped EXE 1 IoCs

pid	Process
3512	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-1-5-21-805952410-2104024357-1716932545-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	3e8acfab95493518077e0028fd0f2dcc.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

defense_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 3512 set thread context of 1320	3512	ximo2ubzn1i.exe	95

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	regasm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3e8acfab95493518077e0028fd0f2dcc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ximo2ubzn1i.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1320	regasm.exe
1320	regasm.exe
1320	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1320	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1320	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3924 wrote to memory of 3512	3924	3e8acfab95493518077e0028fd0f2dcc.exe	93
PID 3924 wrote to memory of 3512	3924	3e8acfab95493518077e0028fd0f2dcc.exe	93
PID 3924 wrote to memory of 3512	3924	3e8acfab95493518077e0028fd0f2dcc.exe	93
PID 3512 wrote to memory of 1320	3512	ximo2ubzn1i.exe	95
PID 3512 wrote to memory of 1320	3512	ximo2ubzn1i.exe	95
PID 3512 wrote to memory of 1320	3512	ximo2ubzn1i.exe	95
PID 3512 wrote to memory of 1320	3512	ximo2ubzn1i.exe	95
PID 3512 wrote to memory of 1320	3512	ximo2ubzn1i.exe	95
PID 3512 wrote to memory of 1320	3512	ximo2ubzn1i.exe	95
PID 3512 wrote to memory of 1320	3512	ximo2ubzn1i.exe	95
PID 3512 wrote to memory of 1320	3512	ximo2ubzn1i.exe	95

C:\Users\Admin\AppData\Local\Temp\3e8acfab95493518077e0028fd0f2dcc.exe
"C:\Users\Admin\AppData\Local\Temp\3e8acfab95493518077e0028fd0f2dcc.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3924
- 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:3512
- - 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:1320

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
418KB

MD5
a481bbdbed31b5a55d6248619fb49778

SHA1
cbbf1a0a6845344cdeaab11e024c2ab63ad78569

SHA256
09d80d18e31c074a2d7becbe6c6b8a985f2b12f37011c6ed03043a947bfc1b28

SHA512
64db688473ee9d17073aa4a66aa9312cf3f46578cf9a8ff1ae5856cb015b242247f8c6fe17d4c1cab1edbf419040d9a173173842d50624b0ffb588f476f32cbd

Download Submit
memory/1320-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1320-36-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/1320-32-0x00000000062F0000-0x00000000062FA000-memory.dmp

Filesize
40KB

Download
memory/1320-31-0x00000000060C0000-0x00000000060DE000-memory.dmp

Filesize
120KB

Download
memory/1320-30-0x00000000055F0000-0x00000000055FA000-memory.dmp

Filesize
40KB

Download
memory/1320-28-0x0000000005420000-0x00000000054BC000-memory.dmp

Filesize
624KB

Download
memory/1320-27-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/1320-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1320-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3512-22-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/3512-21-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/3512-33-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/3512-35-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/3924-0-0x0000000074D7E000-0x0000000074D7F000-memory.dmp

Filesize
4KB

Download
memory/3924-20-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/3924-6-0x0000000005AC0000-0x0000000005AFC000-memory.dmp

Filesize
240KB

Download
memory/3924-5-0x0000000074D70000-0x0000000075520000-memory.dmp

Filesize
7.7MB

Download
memory/3924-4-0x0000000005920000-0x000000000592A000-memory.dmp

Filesize
40KB

Download
memory/3924-3-0x0000000005940000-0x00000000059D2000-memory.dmp

Filesize
584KB

Download
memory/3924-2-0x0000000005EF0000-0x0000000006494000-memory.dmp

Filesize
5.6MB

Download
memory/3924-1-0x0000000000ED0000-0x0000000000F3E000-memory.dmp

Filesize
440KB

Download