nanocore | 525209de288e36bab56d3a19446249ffd067c8757b5d5870daa6a782b9567e74

Analysis

max time kernel
140s
max time network
152s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22/03/2025, 06:12

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General

Target

6c17f80a5a74741689d6145a1e7dca2a7ba13e52fab6e37e2c3240bb47ac7133.exe
Size

418KB
MD5

552b5d6980369b3c7b29fc25cd763251
SHA1

4743845b971bb5003d6f30741f61171243ff5c75
SHA256

6c17f80a5a74741689d6145a1e7dca2a7ba13e52fab6e37e2c3240bb47ac7133
SHA512

22fcaa454e979ff01b979d8d3845d0bb771615313a9fbc3cc062a332c9743b00bdba977dc6ddd247a0832a62fe0bc4ec064f0b68a6d9713751e2eb6688263710
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUwbvk:ITNYrnE3bm/CiejewY5vX8

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

Executes dropped EXE 1 IoCs

pid	Process
2664	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

pid	Process
2156	6c17f80a5a74741689d6145a1e7dca2a7ba13e52fab6e37e2c3240bb47ac7133.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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	6c17f80a5a74741689d6145a1e7dca2a7ba13e52fab6e37e2c3240bb47ac7133.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 2664 set thread context of 2848	2664	ximo2ubzn1i.exe	31

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	6c17f80a5a74741689d6145a1e7dca2a7ba13e52fab6e37e2c3240bb47ac7133.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
2848	regasm.exe
2848	regasm.exe
2848	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2848	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2848	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2156 wrote to memory of 2664	2156	6c17f80a5a74741689d6145a1e7dca2a7ba13e52fab6e37e2c3240bb47ac7133.exe	30
PID 2156 wrote to memory of 2664	2156	6c17f80a5a74741689d6145a1e7dca2a7ba13e52fab6e37e2c3240bb47ac7133.exe	30
PID 2156 wrote to memory of 2664	2156	6c17f80a5a74741689d6145a1e7dca2a7ba13e52fab6e37e2c3240bb47ac7133.exe	30
PID 2156 wrote to memory of 2664	2156	6c17f80a5a74741689d6145a1e7dca2a7ba13e52fab6e37e2c3240bb47ac7133.exe	30
PID 2664 wrote to memory of 2848	2664	ximo2ubzn1i.exe	31
PID 2664 wrote to memory of 2848	2664	ximo2ubzn1i.exe	31
PID 2664 wrote to memory of 2848	2664	ximo2ubzn1i.exe	31
PID 2664 wrote to memory of 2848	2664	ximo2ubzn1i.exe	31
PID 2664 wrote to memory of 2848	2664	ximo2ubzn1i.exe	31
PID 2664 wrote to memory of 2848	2664	ximo2ubzn1i.exe	31
PID 2664 wrote to memory of 2848	2664	ximo2ubzn1i.exe	31
PID 2664 wrote to memory of 2848	2664	ximo2ubzn1i.exe	31
PID 2664 wrote to memory of 2848	2664	ximo2ubzn1i.exe	31
PID 2664 wrote to memory of 2848	2664	ximo2ubzn1i.exe	31
PID 2664 wrote to memory of 2848	2664	ximo2ubzn1i.exe	31
PID 2664 wrote to memory of 2848	2664	ximo2ubzn1i.exe	31

C:\Users\Admin\AppData\Local\Temp\6c17f80a5a74741689d6145a1e7dca2a7ba13e52fab6e37e2c3240bb47ac7133.exe
"C:\Users\Admin\AppData\Local\Temp\6c17f80a5a74741689d6145a1e7dca2a7ba13e52fab6e37e2c3240bb47ac7133.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2156
- 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:2664
- - 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:2848

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

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
d682c3114ec9dcccfbbee72dcb08c325

SHA1
9a240a1e641c7e368295a1d6b4bf8ebc9c4f6b12

SHA256
f8592c36697f95b92652613fe565c53683c59e9ab786d226a1f20aca08ae1609

SHA512
e14b9031e1775748789ee66c0744ce55992c5388d87330b207aebf6dbaa962ae5558f295a8becfaa883a63513b5938aadfb5c9020910ad42211170cdbffc1ac6

Download Submit
memory/2156-1-0x0000000001240000-0x00000000012AE000-memory.dmp

Filesize
440KB

Download
memory/2156-2-0x0000000073D10000-0x00000000743FE000-memory.dmp

Filesize
6.9MB

Download
memory/2156-3-0x0000000000730000-0x000000000076C000-memory.dmp

Filesize
240KB

Download
memory/2156-12-0x0000000073D10000-0x00000000743FE000-memory.dmp

Filesize
6.9MB

Download
memory/2156-0-0x0000000073D1E000-0x0000000073D1F000-memory.dmp

Filesize
4KB

Download
memory/2664-33-0x0000000073D10000-0x00000000743FE000-memory.dmp

Filesize
6.9MB

Download
memory/2664-14-0x0000000073D10000-0x00000000743FE000-memory.dmp

Filesize
6.9MB

Download
memory/2664-13-0x00000000008A0000-0x000000000090E000-memory.dmp

Filesize
440KB

Download
memory/2664-15-0x0000000073D10000-0x00000000743FE000-memory.dmp

Filesize
6.9MB

Download
memory/2664-34-0x0000000073D10000-0x00000000743FE000-memory.dmp

Filesize
6.9MB

Download
memory/2848-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2848-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2848-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2848-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2848-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2848-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2848-30-0x00000000007F0000-0x00000000007FA000-memory.dmp

Filesize
40KB

Download
memory/2848-32-0x0000000000860000-0x000000000086A000-memory.dmp

Filesize
40KB

Download
memory/2848-31-0x0000000000800000-0x000000000081E000-memory.dmp

Filesize
120KB

Download
memory/2848-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2848-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download