nanocore | 3240b809cd83522547d07a1ef5b3f1783d7d482ddcb05a44f265b78ee23d172a

General

Target

3240b809cd83522547d07a1ef5b3f1783d7d482ddcb05a44f265b78ee23d172a.exe
Size

416KB
MD5

3ccac33b001ff12e4d02d46545877b60
SHA1

4fd29a4c6b19deb87057a191f1636a9e40a49401
SHA256

3240b809cd83522547d07a1ef5b3f1783d7d482ddcb05a44f265b78ee23d172a
SHA512

b7861012a11d7d18db5aefef5fb4be5659cee33b29fd3cf7716b0748676f0fb61d441856e0201d111679219d8ef365bb9e6d05f22b8f1bca4ff7fbd90e4cd6ff
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU7A:ITNYrnE3bm/CiejewY5vD

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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	3240b809cd83522547d07a1ef5b3f1783d7d482ddcb05a44f265b78ee23d172a.exe

Executes dropped EXE 1 IoCs

pid	Process
4688	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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	3240b809cd83522547d07a1ef5b3f1783d7d482ddcb05a44f265b78ee23d172a.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 4688 set thread context of 4100	4688	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	regasm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3240b809cd83522547d07a1ef5b3f1783d7d482ddcb05a44f265b78ee23d172a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ximo2ubzn1i.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4100	regasm.exe
4100	regasm.exe
4100	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4100	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4100	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3344 wrote to memory of 4688	3344	3240b809cd83522547d07a1ef5b3f1783d7d482ddcb05a44f265b78ee23d172a.exe	84
PID 3344 wrote to memory of 4688	3344	3240b809cd83522547d07a1ef5b3f1783d7d482ddcb05a44f265b78ee23d172a.exe	84
PID 3344 wrote to memory of 4688	3344	3240b809cd83522547d07a1ef5b3f1783d7d482ddcb05a44f265b78ee23d172a.exe	84
PID 4688 wrote to memory of 4100	4688	ximo2ubzn1i.exe	85
PID 4688 wrote to memory of 4100	4688	ximo2ubzn1i.exe	85
PID 4688 wrote to memory of 4100	4688	ximo2ubzn1i.exe	85
PID 4688 wrote to memory of 4100	4688	ximo2ubzn1i.exe	85
PID 4688 wrote to memory of 4100	4688	ximo2ubzn1i.exe	85
PID 4688 wrote to memory of 4100	4688	ximo2ubzn1i.exe	85
PID 4688 wrote to memory of 4100	4688	ximo2ubzn1i.exe	85
PID 4688 wrote to memory of 4100	4688	ximo2ubzn1i.exe	85

C:\Users\Admin\AppData\Local\Temp\3240b809cd83522547d07a1ef5b3f1783d7d482ddcb05a44f265b78ee23d172a.exe
"C:\Users\Admin\AppData\Local\Temp\3240b809cd83522547d07a1ef5b3f1783d7d482ddcb05a44f265b78ee23d172a.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3344
- 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:4688
- - 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:4100

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
416KB

MD5
19757fd88aaa1819fd8bf0c5bf0ed900

SHA1
8fe9e92d16f50a08f0ff4a32bce64f69e82eef24

SHA256
b47b581fce1dfe1ced173d5ea92fabc0056e9e892ce928fe6588d0a322a85ada

SHA512
1b2b14a31e37c443ea351bcbabc8404702b37ad85d18c7f2418f657b28fa52e8af53b1aeaf05a5f9f6153333725e731a1c3ca854863990116761f3f4c1a4962f

Download Submit
memory/3344-20-0x0000000074530000-0x0000000074CE0000-memory.dmp

Filesize
7.7MB

Download
memory/3344-1-0x0000000000F80000-0x0000000000FEE000-memory.dmp

Filesize
440KB

Download
memory/3344-2-0x0000000005EE0000-0x0000000006484000-memory.dmp

Filesize
5.6MB

Download
memory/3344-3-0x00000000059D0000-0x0000000005A62000-memory.dmp

Filesize
584KB

Download
memory/3344-4-0x0000000005AA0000-0x0000000005AAA000-memory.dmp

Filesize
40KB

Download
memory/3344-5-0x0000000074530000-0x0000000074CE0000-memory.dmp

Filesize
7.7MB

Download
memory/3344-6-0x0000000005C80000-0x0000000005CBC000-memory.dmp

Filesize
240KB

Download
memory/3344-0-0x000000007453E000-0x000000007453F000-memory.dmp

Filesize
4KB

Download
memory/4100-28-0x0000000005360000-0x00000000053FC000-memory.dmp

Filesize
624KB

Download
memory/4100-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4100-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4100-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4100-27-0x0000000074530000-0x0000000074CE0000-memory.dmp

Filesize
7.7MB

Download
memory/4100-30-0x0000000005320000-0x000000000532A000-memory.dmp

Filesize
40KB

Download
memory/4100-32-0x0000000005860000-0x000000000586A000-memory.dmp

Filesize
40KB

Download
memory/4100-31-0x0000000005330000-0x000000000534E000-memory.dmp

Filesize
120KB

Download
memory/4100-36-0x0000000074530000-0x0000000074CE0000-memory.dmp

Filesize
7.7MB

Download
memory/4688-22-0x0000000074530000-0x0000000074CE0000-memory.dmp

Filesize
7.7MB

Download
memory/4688-21-0x0000000074530000-0x0000000074CE0000-memory.dmp

Filesize
7.7MB

Download
memory/4688-33-0x0000000074530000-0x0000000074CE0000-memory.dmp

Filesize
7.7MB

Download
memory/4688-35-0x0000000074530000-0x0000000074CE0000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads