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

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

Processes:

d79c5cee26eab24a8d4562d6948514dd04b815265e43ba28a839e1975dd59782.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	d79c5cee26eab24a8d4562d6948514dd04b815265e43ba28a839e1975dd59782.exe

Executes dropped EXE 1 IoCs

Processes:

ximo2ubzn1i.exe

pid	Process
2032	ximo2ubzn1i.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-1-5-21-3756129449-3121373848-4276368241-1000\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 2032 set thread context of 464	2032	ximo2ubzn1i.exe	87

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
464	regasm.exe
464	regasm.exe
464	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

regasm.exe

pid	Process
464	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

regasm.exe

description	pid	Process
Token: SeDebugPrivilege	464	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

d79c5cee26eab24a8d4562d6948514dd04b815265e43ba28a839e1975dd59782.exeximo2ubzn1i.exe

description	pid	Process	procid_target
PID 2320 wrote to memory of 2032	2320	d79c5cee26eab24a8d4562d6948514dd04b815265e43ba28a839e1975dd59782.exe	86
PID 2320 wrote to memory of 2032	2320	d79c5cee26eab24a8d4562d6948514dd04b815265e43ba28a839e1975dd59782.exe	86
PID 2320 wrote to memory of 2032	2320	d79c5cee26eab24a8d4562d6948514dd04b815265e43ba28a839e1975dd59782.exe	86
PID 2032 wrote to memory of 464	2032	ximo2ubzn1i.exe	87
PID 2032 wrote to memory of 464	2032	ximo2ubzn1i.exe	87
PID 2032 wrote to memory of 464	2032	ximo2ubzn1i.exe	87
PID 2032 wrote to memory of 464	2032	ximo2ubzn1i.exe	87
PID 2032 wrote to memory of 464	2032	ximo2ubzn1i.exe	87
PID 2032 wrote to memory of 464	2032	ximo2ubzn1i.exe	87
PID 2032 wrote to memory of 464	2032	ximo2ubzn1i.exe	87
PID 2032 wrote to memory of 464	2032	ximo2ubzn1i.exe	87

C:\Users\Admin\AppData\Local\Temp\d79c5cee26eab24a8d4562d6948514dd04b815265e43ba28a839e1975dd59782.exe
"C:\Users\Admin\AppData\Local\Temp\d79c5cee26eab24a8d4562d6948514dd04b815265e43ba28a839e1975dd59782.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2320
- 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:2032
- - 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:464

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

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Downloads

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

Filesize
414KB

MD5
7c43446f63ef6a8916e364d639278685

SHA1
8af15908dca56d428a847714d5f6c2fc5e13bc96

SHA256
ae1c959252b1deacd50636fb5ad370f2c51f3ea7972c890b2318e0ad990169ce

SHA512
97223685ae52df6cd3ccbcf5840626f070721622f5e00ca03af44846f8f50069c265861ee7553e6f3a0a82530733b91729cdc5cd1c8136afb41661c6003615f7

Download Submit
memory/464-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/464-36-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/464-32-0x0000000005A80000-0x0000000005A8A000-memory.dmp

Filesize
40KB

Download
memory/464-31-0x0000000005790000-0x00000000057AE000-memory.dmp

Filesize
120KB

Download
memory/464-30-0x0000000005780000-0x000000000578A000-memory.dmp

Filesize
40KB

Download
memory/464-28-0x0000000005590000-0x000000000562C000-memory.dmp

Filesize
624KB

Download
memory/464-27-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/464-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/464-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2032-22-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/2032-21-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/2032-33-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/2032-35-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/2320-0-0x0000000074F7E000-0x0000000074F7F000-memory.dmp

Filesize
4KB

Download
memory/2320-20-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/2320-6-0x0000000005160000-0x000000000519C000-memory.dmp

Filesize
240KB

Download
memory/2320-5-0x0000000004C90000-0x0000000004C9A000-memory.dmp

Filesize
40KB

Download
memory/2320-4-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/2320-3-0x0000000004CD0000-0x0000000004D62000-memory.dmp

Filesize
584KB

Download
memory/2320-2-0x00000000051E0000-0x0000000005784000-memory.dmp

Filesize
5.6MB

Download
memory/2320-1-0x0000000000210000-0x000000000027E000-memory.dmp

Filesize
440KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads