nanocore | eb0bdb02b8cf9653164975e05b5adc01d80345eea4c5513d9c886914dbfcaf46

General

Target

eb0bdb02b8cf9653164975e05b5adc01d80345eea4c5513d9c886914dbfcaf46N.exe
Size

415KB
MD5

b8cf6e31354662a6f64f116402143080
SHA1

1b7d0468fb279ee1f31666d4de2eaaba939dcb35
SHA256

eb0bdb02b8cf9653164975e05b5adc01d80345eea4c5513d9c886914dbfcaf46
SHA512

ce92890e29f05792c882e8317052e8486031fa7ca94ec088830a6dc56cfd2158701c074b1f623f8f050d3cfe8111a703e55ead8098c11deed8fdd650654295b2
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUx:ITNYrnE3bm/CiejewY5vg

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

Executes dropped EXE 1 IoCs

pid	Process
2952	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

pid	Process
3028	eb0bdb02b8cf9653164975e05b5adc01d80345eea4c5513d9c886914dbfcaf46N.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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	eb0bdb02b8cf9653164975e05b5adc01d80345eea4c5513d9c886914dbfcaf46N.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 2952 set thread context of 2756	2952	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	eb0bdb02b8cf9653164975e05b5adc01d80345eea4c5513d9c886914dbfcaf46N.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
2756	regasm.exe
2756	regasm.exe
2756	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2756	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2756	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3028 wrote to memory of 2952	3028	eb0bdb02b8cf9653164975e05b5adc01d80345eea4c5513d9c886914dbfcaf46N.exe	30
PID 3028 wrote to memory of 2952	3028	eb0bdb02b8cf9653164975e05b5adc01d80345eea4c5513d9c886914dbfcaf46N.exe	30
PID 3028 wrote to memory of 2952	3028	eb0bdb02b8cf9653164975e05b5adc01d80345eea4c5513d9c886914dbfcaf46N.exe	30
PID 3028 wrote to memory of 2952	3028	eb0bdb02b8cf9653164975e05b5adc01d80345eea4c5513d9c886914dbfcaf46N.exe	30
PID 2952 wrote to memory of 2756	2952	ximo2ubzn1i.exe	31
PID 2952 wrote to memory of 2756	2952	ximo2ubzn1i.exe	31
PID 2952 wrote to memory of 2756	2952	ximo2ubzn1i.exe	31
PID 2952 wrote to memory of 2756	2952	ximo2ubzn1i.exe	31
PID 2952 wrote to memory of 2756	2952	ximo2ubzn1i.exe	31
PID 2952 wrote to memory of 2756	2952	ximo2ubzn1i.exe	31
PID 2952 wrote to memory of 2756	2952	ximo2ubzn1i.exe	31
PID 2952 wrote to memory of 2756	2952	ximo2ubzn1i.exe	31
PID 2952 wrote to memory of 2756	2952	ximo2ubzn1i.exe	31
PID 2952 wrote to memory of 2756	2952	ximo2ubzn1i.exe	31
PID 2952 wrote to memory of 2756	2952	ximo2ubzn1i.exe	31
PID 2952 wrote to memory of 2756	2952	ximo2ubzn1i.exe	31

C:\Users\Admin\AppData\Local\Temp\eb0bdb02b8cf9653164975e05b5adc01d80345eea4c5513d9c886914dbfcaf46N.exe
"C:\Users\Admin\AppData\Local\Temp\eb0bdb02b8cf9653164975e05b5adc01d80345eea4c5513d9c886914dbfcaf46N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3028
- 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:2952
- - 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:2756

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

System Information Discovery

2

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

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

Filesize
415KB

MD5
1650d91dab90b922702a9966e6153302

SHA1
71648df6ed488117d039cee90ed2dbb0a5ad8c9a

SHA256
b1c5ae6e7d6b25b59761dd08878a0b48470bb575c65d8335e8847c9dfa56e5d1

SHA512
1ebc43fba5ef1b7cf53878f13c84abc7463713bc043d162735a6f6360651bf17139df64bc9950a3b6bbaf1fafcaf7584bc6e26aebc80b9e989238246a16fcada

Download Submit
memory/2756-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2756-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2756-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2756-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2756-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2756-37-0x0000000000730000-0x000000000073A000-memory.dmp

Filesize
40KB

Download
memory/2756-36-0x00000000008B0000-0x00000000008CE000-memory.dmp

Filesize
120KB

Download
memory/2756-35-0x00000000006E0000-0x00000000006EA000-memory.dmp

Filesize
40KB

Download
memory/2756-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2756-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2756-33-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2952-13-0x0000000000A40000-0x0000000000AAE000-memory.dmp

Filesize
440KB

Download
memory/2952-12-0x0000000073F90000-0x000000007467E000-memory.dmp

Filesize
6.9MB

Download
memory/2952-15-0x0000000073F90000-0x000000007467E000-memory.dmp

Filesize
6.9MB

Download
memory/2952-38-0x0000000073F90000-0x000000007467E000-memory.dmp

Filesize
6.9MB

Download
memory/2952-39-0x0000000073F90000-0x000000007467E000-memory.dmp

Filesize
6.9MB

Download
memory/3028-1-0x0000000000A10000-0x0000000000A7E000-memory.dmp

Filesize
440KB

Download
memory/3028-0-0x0000000073F9E000-0x0000000073F9F000-memory.dmp

Filesize
4KB

Download
memory/3028-3-0x0000000000640000-0x000000000067C000-memory.dmp

Filesize
240KB

Download
memory/3028-2-0x0000000073F90000-0x000000007467E000-memory.dmp

Filesize
6.9MB

Download
memory/3028-14-0x0000000073F90000-0x000000007467E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads