nanocore | 7f1beb32d0565e8ebe9db45b1bc9a29b8fe6f2cfb7f17605bd2f6ec40f761b89

Analysis

max time kernel
140s
max time network
154s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22/03/2025, 06:11

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General

Target

5bd53b90c9a087f62175a657969ca112ea270bf5677a4a0dfb8eb383c2d1f4e5.exe
Size

418KB
MD5

26e78fb82b46031cfd6883a62888f021
SHA1

a280d339fcb7fec26ae6a3ade73c4069c15a0070
SHA256

5bd53b90c9a087f62175a657969ca112ea270bf5677a4a0dfb8eb383c2d1f4e5
SHA512

315b1f25cb335ae78b917fb9cc5e5985e4c2f24ef49940f2a1f05a4536757cfdff64785684f679ab10ea608ae232b78cd25e5d58e5d17d9de224dd194ddfb2aa
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUwbvl:ITNYrnE3bm/CiejewY5vXd

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
2244	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

pid	Process
2672	5bd53b90c9a087f62175a657969ca112ea270bf5677a4a0dfb8eb383c2d1f4e5.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"	5bd53b90c9a087f62175a657969ca112ea270bf5677a4a0dfb8eb383c2d1f4e5.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 2244 set thread context of 748	2244	ximo2ubzn1i.exe	32

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	5bd53b90c9a087f62175a657969ca112ea270bf5677a4a0dfb8eb383c2d1f4e5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ximo2ubzn1i.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
748	regasm.exe
748	regasm.exe
748	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
748	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	748	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2672 wrote to memory of 2244	2672	5bd53b90c9a087f62175a657969ca112ea270bf5677a4a0dfb8eb383c2d1f4e5.exe	31
PID 2672 wrote to memory of 2244	2672	5bd53b90c9a087f62175a657969ca112ea270bf5677a4a0dfb8eb383c2d1f4e5.exe	31
PID 2672 wrote to memory of 2244	2672	5bd53b90c9a087f62175a657969ca112ea270bf5677a4a0dfb8eb383c2d1f4e5.exe	31
PID 2672 wrote to memory of 2244	2672	5bd53b90c9a087f62175a657969ca112ea270bf5677a4a0dfb8eb383c2d1f4e5.exe	31
PID 2244 wrote to memory of 748	2244	ximo2ubzn1i.exe	32
PID 2244 wrote to memory of 748	2244	ximo2ubzn1i.exe	32
PID 2244 wrote to memory of 748	2244	ximo2ubzn1i.exe	32
PID 2244 wrote to memory of 748	2244	ximo2ubzn1i.exe	32
PID 2244 wrote to memory of 748	2244	ximo2ubzn1i.exe	32
PID 2244 wrote to memory of 748	2244	ximo2ubzn1i.exe	32
PID 2244 wrote to memory of 748	2244	ximo2ubzn1i.exe	32
PID 2244 wrote to memory of 748	2244	ximo2ubzn1i.exe	32
PID 2244 wrote to memory of 748	2244	ximo2ubzn1i.exe	32
PID 2244 wrote to memory of 748	2244	ximo2ubzn1i.exe	32
PID 2244 wrote to memory of 748	2244	ximo2ubzn1i.exe	32
PID 2244 wrote to memory of 748	2244	ximo2ubzn1i.exe	32

C:\Users\Admin\AppData\Local\Temp\5bd53b90c9a087f62175a657969ca112ea270bf5677a4a0dfb8eb383c2d1f4e5.exe
"C:\Users\Admin\AppData\Local\Temp\5bd53b90c9a087f62175a657969ca112ea270bf5677a4a0dfb8eb383c2d1f4e5.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2672
- 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:2244
- - 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:748

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
419KB

MD5
68ec30e01d96d08aadb5b3e924e3ae6a

SHA1
d32e42aa6908bcb695d0df65decfe1a758ac1317

SHA256
3ffc55e9c5d1cfae7e8cb3f612eeffa287d55dc6763fe4f39744969be71f4b0a

SHA512
fa64ec0c9a05fbe2d58dfd252356e08bde2c4c88b52d1249e9e750617a268c7e46aedd90d3e1dfbbd9e555ea9c027eae649c338c3693e2284f05ea334f395cb1

Download Submit
memory/748-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/748-35-0x0000000000670000-0x000000000067A000-memory.dmp

Filesize
40KB

Download
memory/748-34-0x0000000000470000-0x000000000048E000-memory.dmp

Filesize
120KB

Download
memory/748-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/748-33-0x0000000000460000-0x000000000046A000-memory.dmp

Filesize
40KB

Download
memory/748-25-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/748-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/748-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/748-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/748-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/748-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2244-13-0x00000000740B0000-0x000000007479E000-memory.dmp

Filesize
6.9MB

Download
memory/2244-14-0x00000000740B0000-0x000000007479E000-memory.dmp

Filesize
6.9MB

Download
memory/2244-12-0x00000000008D0000-0x000000000093E000-memory.dmp

Filesize
440KB

Download
memory/2244-37-0x00000000740B0000-0x000000007479E000-memory.dmp

Filesize
6.9MB

Download
memory/2244-38-0x00000000740B0000-0x000000007479E000-memory.dmp

Filesize
6.9MB

Download
memory/2672-2-0x00000000740B0000-0x000000007479E000-memory.dmp

Filesize
6.9MB

Download
memory/2672-0-0x00000000740BE000-0x00000000740BF000-memory.dmp

Filesize
4KB

Download
memory/2672-1-0x0000000000030000-0x000000000009E000-memory.dmp

Filesize
440KB

Download
memory/2672-3-0x0000000002130000-0x000000000216C000-memory.dmp

Filesize
240KB

Download
memory/2672-36-0x00000000740B0000-0x000000007479E000-memory.dmp

Filesize
6.9MB

Download