nanocore | 263afbf7039f8ed43936db45f08b0edd504445da4fe2a13f43682f0f9f2dbe8b

General

Target

263afbf7039f8ed43936db45f08b0edd504445da4fe2a13f43682f0f9f2dbe8b.exe
Size

417KB
MD5

0c576ca8a5cf58a80b6d3a5f75117d1d
SHA1

feb0fc20123b99a8c4d9143751c5167a48810769
SHA256

263afbf7039f8ed43936db45f08b0edd504445da4fe2a13f43682f0f9f2dbe8b
SHA512

a71ba3174ee8c8ca2564b20f21f87b71109f59b79541e9abfe79d6f8510363ba91f342d7199158486822e416148cfcc17ac048c6b06ed7d41c812c0a4ae5013e
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUwbu:ITNYrnE3bm/CiejewY5vXu

Score

10^/10

nanocore defense_evasion discovery 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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	263afbf7039f8ed43936db45f08b0edd504445da4fe2a13f43682f0f9f2dbe8b.exe

Executes dropped EXE 1 IoCs

pid	Process
4828	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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	263afbf7039f8ed43936db45f08b0edd504445da4fe2a13f43682f0f9f2dbe8b.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 4828 set thread context of 2684	4828	ximo2ubzn1i.exe	87

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	ximo2ubzn1i.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regasm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	263afbf7039f8ed43936db45f08b0edd504445da4fe2a13f43682f0f9f2dbe8b.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2684	regasm.exe
2684	regasm.exe
2684	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2684	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2684	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2372 wrote to memory of 4828	2372	263afbf7039f8ed43936db45f08b0edd504445da4fe2a13f43682f0f9f2dbe8b.exe	86
PID 2372 wrote to memory of 4828	2372	263afbf7039f8ed43936db45f08b0edd504445da4fe2a13f43682f0f9f2dbe8b.exe	86
PID 2372 wrote to memory of 4828	2372	263afbf7039f8ed43936db45f08b0edd504445da4fe2a13f43682f0f9f2dbe8b.exe	86
PID 4828 wrote to memory of 2684	4828	ximo2ubzn1i.exe	87
PID 4828 wrote to memory of 2684	4828	ximo2ubzn1i.exe	87
PID 4828 wrote to memory of 2684	4828	ximo2ubzn1i.exe	87
PID 4828 wrote to memory of 2684	4828	ximo2ubzn1i.exe	87
PID 4828 wrote to memory of 2684	4828	ximo2ubzn1i.exe	87
PID 4828 wrote to memory of 2684	4828	ximo2ubzn1i.exe	87
PID 4828 wrote to memory of 2684	4828	ximo2ubzn1i.exe	87
PID 4828 wrote to memory of 2684	4828	ximo2ubzn1i.exe	87

C:\Users\Admin\AppData\Local\Temp\263afbf7039f8ed43936db45f08b0edd504445da4fe2a13f43682f0f9f2dbe8b.exe
"C:\Users\Admin\AppData\Local\Temp\263afbf7039f8ed43936db45f08b0edd504445da4fe2a13f43682f0f9f2dbe8b.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2372
- 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:4828
- - 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:2684

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

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Downloads

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

Filesize
417KB

MD5
c78e5b1109b33816709a1c4ca6a32cb5

SHA1
e901548db66fb6fad0e13b69f11f768f5576b77f

SHA256
0a12790d0d02c63ad08fcf0f087a292c5280cb34d5bab704bb803bf85fa7585e

SHA512
4b434022b51c4a1554852a70d66a48f7e08a1374ff8de92d05ff4ec54ffe1324f4cc5edadafe7e3b955ecb8e5aff4181bcfc964c2a0a924f6bd12ad21cd8c969

Download Submit
memory/2372-0-0x000000007477E000-0x000000007477F000-memory.dmp

Filesize
4KB

Download
memory/2372-1-0x0000000000D00000-0x0000000000D6E000-memory.dmp

Filesize
440KB

Download
memory/2372-2-0x0000000005E00000-0x00000000063A4000-memory.dmp

Filesize
5.6MB

Download
memory/2372-3-0x0000000005770000-0x0000000005802000-memory.dmp

Filesize
584KB

Download
memory/2372-5-0x0000000005760000-0x000000000576A000-memory.dmp

Filesize
40KB

Download
memory/2372-4-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/2372-6-0x0000000005D70000-0x0000000005DAC000-memory.dmp

Filesize
240KB

Download
memory/2372-20-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/2684-28-0x00000000052C0000-0x000000000535C000-memory.dmp

Filesize
624KB

Download
memory/2684-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2684-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2684-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2684-27-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/2684-30-0x0000000005750000-0x000000000575A000-memory.dmp

Filesize
40KB

Download
memory/2684-31-0x00000000057A0000-0x00000000057BE000-memory.dmp

Filesize
120KB

Download
memory/2684-32-0x00000000060D0000-0x00000000060DA000-memory.dmp

Filesize
40KB

Download
memory/2684-36-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/4828-22-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/4828-21-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/4828-33-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download
memory/4828-35-0x0000000074770000-0x0000000074F20000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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