nanocore | 40f01221f9c4d6fcf2addeaf6092015aaa10523b478ea3332943bf3dca4846c9

General

Target

40f01221f9c4d6fcf2addeaf6092015aaa10523b478ea3332943bf3dca4846c9.exe
Size

413KB
MD5

c1cf35e9c306443d88821da407118231
SHA1

c00baf49364ea7be90390412f5893e7bc7be5e2b
SHA256

40f01221f9c4d6fcf2addeaf6092015aaa10523b478ea3332943bf3dca4846c9
SHA512

ac439070c1c1e4fce0911a11d4c264ba3ae301c1abe78530988ce9462303f08487e151fa8fb1f03122e6496bed535d8ef841add785bcd6ee6c80925e4c345543
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUg:ITNYrnE3bm/CiejewY5vn

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

Processes:

ximo2ubzn1i.exe

pid	Process
2776	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

Processes:

40f01221f9c4d6fcf2addeaf6092015aaa10523b478ea3332943bf3dca4846c9.exe

pid	Process
1508	40f01221f9c4d6fcf2addeaf6092015aaa10523b478ea3332943bf3dca4846c9.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

40f01221f9c4d6fcf2addeaf6092015aaa10523b478ea3332943bf3dca4846c9.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	40f01221f9c4d6fcf2addeaf6092015aaa10523b478ea3332943bf3dca4846c9.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

regasm.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	regasm.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

ximo2ubzn1i.exe

description	pid	Process	procid_target
PID 2776 set thread context of 2144	2776	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

Processes:

40f01221f9c4d6fcf2addeaf6092015aaa10523b478ea3332943bf3dca4846c9.exeximo2ubzn1i.exeregasm.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	40f01221f9c4d6fcf2addeaf6092015aaa10523b478ea3332943bf3dca4846c9.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

Processes:

regasm.exe

pid	Process
2144	regasm.exe
2144	regasm.exe
2144	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

regasm.exe

pid	Process
2144	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

regasm.exe

description	pid	Process
Token: SeDebugPrivilege	2144	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

40f01221f9c4d6fcf2addeaf6092015aaa10523b478ea3332943bf3dca4846c9.exeximo2ubzn1i.exe

description	pid	Process	procid_target
PID 1508 wrote to memory of 2776	1508	40f01221f9c4d6fcf2addeaf6092015aaa10523b478ea3332943bf3dca4846c9.exe	31
PID 1508 wrote to memory of 2776	1508	40f01221f9c4d6fcf2addeaf6092015aaa10523b478ea3332943bf3dca4846c9.exe	31
PID 1508 wrote to memory of 2776	1508	40f01221f9c4d6fcf2addeaf6092015aaa10523b478ea3332943bf3dca4846c9.exe	31
PID 1508 wrote to memory of 2776	1508	40f01221f9c4d6fcf2addeaf6092015aaa10523b478ea3332943bf3dca4846c9.exe	31
PID 2776 wrote to memory of 2144	2776	ximo2ubzn1i.exe	32
PID 2776 wrote to memory of 2144	2776	ximo2ubzn1i.exe	32
PID 2776 wrote to memory of 2144	2776	ximo2ubzn1i.exe	32
PID 2776 wrote to memory of 2144	2776	ximo2ubzn1i.exe	32
PID 2776 wrote to memory of 2144	2776	ximo2ubzn1i.exe	32
PID 2776 wrote to memory of 2144	2776	ximo2ubzn1i.exe	32
PID 2776 wrote to memory of 2144	2776	ximo2ubzn1i.exe	32
PID 2776 wrote to memory of 2144	2776	ximo2ubzn1i.exe	32
PID 2776 wrote to memory of 2144	2776	ximo2ubzn1i.exe	32
PID 2776 wrote to memory of 2144	2776	ximo2ubzn1i.exe	32
PID 2776 wrote to memory of 2144	2776	ximo2ubzn1i.exe	32
PID 2776 wrote to memory of 2144	2776	ximo2ubzn1i.exe	32

C:\Users\Admin\AppData\Local\Temp\40f01221f9c4d6fcf2addeaf6092015aaa10523b478ea3332943bf3dca4846c9.exe
"C:\Users\Admin\AppData\Local\Temp\40f01221f9c4d6fcf2addeaf6092015aaa10523b478ea3332943bf3dca4846c9.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1508
- 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:2776
- - 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:2144

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

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

Filesize
413KB

MD5
128503cbb6728ed2814ab73fb33c1d5a

SHA1
6204b85f2e099bff62a66fbb91ce5ff904899670

SHA256
06ca8c41e4d7a4dc88716fb184196e3cf032177df855861b931adb13d894cad7

SHA512
eac5bac127205b6e86ee430d7f75a325ddf2d20237118f3b6b094908f4c3e5a12546ef78ff2421b85b4405c76a4f674699a20372f20d243455d79e5f52688876

Download Submit
memory/1508-12-0x0000000074490000-0x0000000074B7E000-memory.dmp

Filesize
6.9MB

Download
memory/1508-1-0x00000000001C0000-0x000000000022E000-memory.dmp

Filesize
440KB

Download
memory/1508-2-0x0000000074490000-0x0000000074B7E000-memory.dmp

Filesize
6.9MB

Download
memory/1508-3-0x0000000000AE0000-0x0000000000B1C000-memory.dmp

Filesize
240KB

Download
memory/1508-0-0x000000007449E000-0x000000007449F000-memory.dmp

Filesize
4KB

Download
memory/2144-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2144-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2144-37-0x00000000004A0000-0x00000000004AA000-memory.dmp

Filesize
40KB

Download
memory/2144-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2144-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2144-33-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2144-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2144-36-0x00000000004F0000-0x000000000050E000-memory.dmp

Filesize
120KB

Download
memory/2144-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2144-35-0x0000000000480000-0x000000000048A000-memory.dmp

Filesize
40KB

Download
memory/2144-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2776-13-0x0000000000E90000-0x0000000000EFE000-memory.dmp

Filesize
440KB

Download
memory/2776-14-0x0000000074490000-0x0000000074B7E000-memory.dmp

Filesize
6.9MB

Download
memory/2776-15-0x0000000074490000-0x0000000074B7E000-memory.dmp

Filesize
6.9MB

Download
memory/2776-38-0x0000000074490000-0x0000000074B7E000-memory.dmp

Filesize
6.9MB

Download
memory/2776-39-0x0000000074490000-0x0000000074B7E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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