nanocore | a69b62df1235d9357d6ebf31dacac449c68b38831e3b521f66ad08f520710270

General

Target

a69b62df1235d9357d6ebf31dacac449c68b38831e3b521f66ad08f520710270.exe
Size

413KB
MD5

19c4439fbe87fc663159c5f7c58a2cad
SHA1

1eb0c0a67f34b04ad40026786bb23f796d8d46cb
SHA256

a69b62df1235d9357d6ebf31dacac449c68b38831e3b521f66ad08f520710270
SHA512

84515646b456be3a4572e757b1a7089610722af755c5a44120733794e1f79ec5a8af46000afc41bc3cd794db9fe89f45f531e9c07bfc66a98e4b2d2f7ac75fa3
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUr:ITNYrnE3bm/CiejewY5v8

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

Executes dropped EXE 1 IoCs

pid	Process
748	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

pid	Process
1796	a69b62df1235d9357d6ebf31dacac449c68b38831e3b521f66ad08f520710270.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-1-5-21-3290804112-2823094203-3137964600-1000\Software\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	a69b62df1235d9357d6ebf31dacac449c68b38831e3b521f66ad08f520710270.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 748 set thread context of 2652	748	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	a69b62df1235d9357d6ebf31dacac449c68b38831e3b521f66ad08f520710270.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
2652	regasm.exe
2652	regasm.exe
2652	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2652	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2652	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1796 wrote to memory of 748	1796	a69b62df1235d9357d6ebf31dacac449c68b38831e3b521f66ad08f520710270.exe	31
PID 1796 wrote to memory of 748	1796	a69b62df1235d9357d6ebf31dacac449c68b38831e3b521f66ad08f520710270.exe	31
PID 1796 wrote to memory of 748	1796	a69b62df1235d9357d6ebf31dacac449c68b38831e3b521f66ad08f520710270.exe	31
PID 1796 wrote to memory of 748	1796	a69b62df1235d9357d6ebf31dacac449c68b38831e3b521f66ad08f520710270.exe	31
PID 748 wrote to memory of 2652	748	ximo2ubzn1i.exe	32
PID 748 wrote to memory of 2652	748	ximo2ubzn1i.exe	32
PID 748 wrote to memory of 2652	748	ximo2ubzn1i.exe	32
PID 748 wrote to memory of 2652	748	ximo2ubzn1i.exe	32
PID 748 wrote to memory of 2652	748	ximo2ubzn1i.exe	32
PID 748 wrote to memory of 2652	748	ximo2ubzn1i.exe	32
PID 748 wrote to memory of 2652	748	ximo2ubzn1i.exe	32
PID 748 wrote to memory of 2652	748	ximo2ubzn1i.exe	32
PID 748 wrote to memory of 2652	748	ximo2ubzn1i.exe	32
PID 748 wrote to memory of 2652	748	ximo2ubzn1i.exe	32
PID 748 wrote to memory of 2652	748	ximo2ubzn1i.exe	32
PID 748 wrote to memory of 2652	748	ximo2ubzn1i.exe	32

C:\Users\Admin\AppData\Local\Temp\a69b62df1235d9357d6ebf31dacac449c68b38831e3b521f66ad08f520710270.exe
"C:\Users\Admin\AppData\Local\Temp\a69b62df1235d9357d6ebf31dacac449c68b38831e3b521f66ad08f520710270.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1796
- 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:748
- - 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:2652

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
413KB

MD5
e6fe05861aca2a30c44157d547f7d3db

SHA1
b6ad2a717cb120128a8602708b1d5a9b86c5789e

SHA256
3e64f168c2dbda94fb65572398f298587c901277b448df7b2d917c9e1ae2e91c

SHA512
bb5c669e6c99860f0acda995751db7f8eaa2e0e08e043c552d9c743c9ded509758cb008a9f8e1b0352b76694c49f0f53204efb461c3f239a41fb26dd2034d4a3

Download Submit
memory/748-37-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/748-12-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/748-14-0x00000000008D0000-0x000000000093E000-memory.dmp

Filesize
440KB

Download
memory/748-15-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/748-38-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/1796-1-0x0000000000150000-0x00000000001BE000-memory.dmp

Filesize
440KB

Download
memory/1796-2-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/1796-3-0x00000000041D0000-0x000000000420C000-memory.dmp

Filesize
240KB

Download
memory/1796-13-0x0000000074630000-0x0000000074D1E000-memory.dmp

Filesize
6.9MB

Download
memory/1796-0-0x000000007463E000-0x000000007463F000-memory.dmp

Filesize
4KB

Download
memory/2652-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2652-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2652-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2652-32-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2652-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2652-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2652-34-0x00000000003E0000-0x00000000003EA000-memory.dmp

Filesize
40KB

Download
memory/2652-35-0x0000000000440000-0x000000000045E000-memory.dmp

Filesize
120KB

Download
memory/2652-36-0x00000000003F0000-0x00000000003FA000-memory.dmp

Filesize
40KB

Download
memory/2652-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2652-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads