nanocore | d79c5cee26eab24a8d4562d6948514dd04b815265e43ba28a839e1975dd59782

General

Target

d79c5cee26eab24a8d4562d6948514dd04b815265e43ba28a839e1975dd59782.exe
Size

414KB
MD5

59006cbd7bbbe504add1796d9e70fb73
SHA1

7ff9405556127bccc4a77cdf5738c965f0b86d6c
SHA256

d79c5cee26eab24a8d4562d6948514dd04b815265e43ba28a839e1975dd59782
SHA512

c72cdbb7884ac02acfe0ce3cb1b0c709aa2cccf4458c6b81b9415f4959a303fc0dc7ba6c6088ca3ada0bb706f0c35b92cead9940e79d6a36203c0b6c155c6077
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUh:ITNYrnE3bm/CiejewY5vy

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
2832	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

Processes:

d79c5cee26eab24a8d4562d6948514dd04b815265e43ba28a839e1975dd59782.exe

pid	Process
2812	d79c5cee26eab24a8d4562d6948514dd04b815265e43ba28a839e1975dd59782.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

d79c5cee26eab24a8d4562d6948514dd04b815265e43ba28a839e1975dd59782.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	d79c5cee26eab24a8d4562d6948514dd04b815265e43ba28a839e1975dd59782.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 2832 set thread context of 1396	2832	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

Processes:

d79c5cee26eab24a8d4562d6948514dd04b815265e43ba28a839e1975dd59782.exeximo2ubzn1i.exeregasm.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d79c5cee26eab24a8d4562d6948514dd04b815265e43ba28a839e1975dd59782.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
1396	regasm.exe
1396	regasm.exe
1396	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

regasm.exe

pid	Process
1396	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

regasm.exe

description	pid	Process
Token: SeDebugPrivilege	1396	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

d79c5cee26eab24a8d4562d6948514dd04b815265e43ba28a839e1975dd59782.exeximo2ubzn1i.exe

description	pid	Process	procid_target
PID 2812 wrote to memory of 2832	2812	d79c5cee26eab24a8d4562d6948514dd04b815265e43ba28a839e1975dd59782.exe	30
PID 2812 wrote to memory of 2832	2812	d79c5cee26eab24a8d4562d6948514dd04b815265e43ba28a839e1975dd59782.exe	30
PID 2812 wrote to memory of 2832	2812	d79c5cee26eab24a8d4562d6948514dd04b815265e43ba28a839e1975dd59782.exe	30
PID 2812 wrote to memory of 2832	2812	d79c5cee26eab24a8d4562d6948514dd04b815265e43ba28a839e1975dd59782.exe	30
PID 2832 wrote to memory of 1396	2832	ximo2ubzn1i.exe	31
PID 2832 wrote to memory of 1396	2832	ximo2ubzn1i.exe	31
PID 2832 wrote to memory of 1396	2832	ximo2ubzn1i.exe	31
PID 2832 wrote to memory of 1396	2832	ximo2ubzn1i.exe	31
PID 2832 wrote to memory of 1396	2832	ximo2ubzn1i.exe	31
PID 2832 wrote to memory of 1396	2832	ximo2ubzn1i.exe	31
PID 2832 wrote to memory of 1396	2832	ximo2ubzn1i.exe	31
PID 2832 wrote to memory of 1396	2832	ximo2ubzn1i.exe	31
PID 2832 wrote to memory of 1396	2832	ximo2ubzn1i.exe	31
PID 2832 wrote to memory of 1396	2832	ximo2ubzn1i.exe	31
PID 2832 wrote to memory of 1396	2832	ximo2ubzn1i.exe	31
PID 2832 wrote to memory of 1396	2832	ximo2ubzn1i.exe	31

C:\Users\Admin\AppData\Local\Temp\d79c5cee26eab24a8d4562d6948514dd04b815265e43ba28a839e1975dd59782.exe
"C:\Users\Admin\AppData\Local\Temp\d79c5cee26eab24a8d4562d6948514dd04b815265e43ba28a839e1975dd59782.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2812
- 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:2832
- - 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:1396

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
414KB

MD5
e21b4fb5be3f25b82b707a8f53e01eda

SHA1
07c91505d7c0c82785e509fff7879fcc32812360

SHA256
8b322c048dfdb8514ca24f6f15b33f6702752ce43257729bc6f8685831d1cd42

SHA512
68544aa6925120c7092d5fa55b062acc50c286066c433a04e1ad553cc3fcec73de6fd039b98267954376151ee1c10d01a5dbbd8939d83f1529744844a7eb73af

Download Submit
memory/1396-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1396-31-0x00000000005F0000-0x000000000060E000-memory.dmp

Filesize
120KB

Download
memory/1396-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1396-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1396-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1396-32-0x0000000000610000-0x000000000061A000-memory.dmp

Filesize
40KB

Download
memory/1396-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1396-30-0x00000000005E0000-0x00000000005EA000-memory.dmp

Filesize
40KB

Download
memory/1396-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1396-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1396-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2812-12-0x0000000073F40000-0x000000007462E000-memory.dmp

Filesize
6.9MB

Download
memory/2812-1-0x0000000001300000-0x000000000136E000-memory.dmp

Filesize
440KB

Download
memory/2812-3-0x0000000000710000-0x000000000074C000-memory.dmp

Filesize
240KB

Download
memory/2812-0-0x0000000073F4E000-0x0000000073F4F000-memory.dmp

Filesize
4KB

Download
memory/2812-2-0x0000000073F40000-0x000000007462E000-memory.dmp

Filesize
6.9MB

Download
memory/2832-15-0x0000000073F40000-0x000000007462E000-memory.dmp

Filesize
6.9MB

Download
memory/2832-14-0x0000000073F40000-0x000000007462E000-memory.dmp

Filesize
6.9MB

Download
memory/2832-13-0x0000000000240000-0x00000000002AE000-memory.dmp

Filesize
440KB

Download
memory/2832-33-0x0000000073F40000-0x000000007462E000-memory.dmp

Filesize
6.9MB

Download
memory/2832-34-0x0000000073F40000-0x000000007462E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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