nanocore | 39e8d4fac9f7aa4d0187d81f69b7dadebd9fe281a521ac04022d3b1b676f98a2

General

Target

39e8d4fac9f7aa4d0187d81f69b7dadebd9fe281a521ac04022d3b1b676f98a2N.exe
Size

415KB
MD5

181d83cedb97c2164994cf49c8560570
SHA1

544b0d7faaa3b27d6f7d5e443a5e3222db99fbcd
SHA256

39e8d4fac9f7aa4d0187d81f69b7dadebd9fe281a521ac04022d3b1b676f98a2
SHA512

8b391984de72b94455e4037dd4f0bac38476f779678c656fd0b0c27acb81a5accc8bae46f6e045d9f4e1d575ea39a16f6eb70429704641939c3ce06717efc2cc
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU7c:ITNYrnE3bm/CiejewY5vX

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

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:

39e8d4fac9f7aa4d0187d81f69b7dadebd9fe281a521ac04022d3b1b676f98a2N.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	39e8d4fac9f7aa4d0187d81f69b7dadebd9fe281a521ac04022d3b1b676f98a2N.exe

Executes dropped EXE 1 IoCs

Processes:

ximo2ubzn1i.exe

pid process

3548 ximo2ubzn1i.exe

pid	process
3548	ximo2ubzn1i.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

39e8d4fac9f7aa4d0187d81f69b7dadebd9fe281a521ac04022d3b1b676f98a2N.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	39e8d4fac9f7aa4d0187d81f69b7dadebd9fe281a521ac04022d3b1b676f98a2N.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 target process

PID 3548 set thread context of 3192 3548 ximo2ubzn1i.exe regasm.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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

description	pid	process	target process
PID 3548 set thread context of 3192	3548	ximo2ubzn1i.exe	regasm.exe

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:

regasm.exe39e8d4fac9f7aa4d0187d81f69b7dadebd9fe281a521ac04022d3b1b676f98a2N.exeximo2ubzn1i.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regasm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	39e8d4fac9f7aa4d0187d81f69b7dadebd9fe281a521ac04022d3b1b676f98a2N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ximo2ubzn1i.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

regasm.exe

pid process

3192 regasm.exe
3192 regasm.exe
3192 regasm.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

regasm.exe

pid process

3192 regasm.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

regasm.exe

description pid process

Token: SeDebugPrivilege 3192 regasm.exe

pid	process
3192	regasm.exe
3192	regasm.exe
3192	regasm.exe

pid	process
3192	regasm.exe

description	pid	process
Token: SeDebugPrivilege	3192	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

39e8d4fac9f7aa4d0187d81f69b7dadebd9fe281a521ac04022d3b1b676f98a2N.exeximo2ubzn1i.exe

description	pid	process	target process
PID 1120 wrote to memory of 3548	1120	39e8d4fac9f7aa4d0187d81f69b7dadebd9fe281a521ac04022d3b1b676f98a2N.exe	ximo2ubzn1i.exe
PID 1120 wrote to memory of 3548	1120	39e8d4fac9f7aa4d0187d81f69b7dadebd9fe281a521ac04022d3b1b676f98a2N.exe	ximo2ubzn1i.exe
PID 1120 wrote to memory of 3548	1120	39e8d4fac9f7aa4d0187d81f69b7dadebd9fe281a521ac04022d3b1b676f98a2N.exe	ximo2ubzn1i.exe
PID 3548 wrote to memory of 3192	3548	ximo2ubzn1i.exe	regasm.exe
PID 3548 wrote to memory of 3192	3548	ximo2ubzn1i.exe	regasm.exe
PID 3548 wrote to memory of 3192	3548	ximo2ubzn1i.exe	regasm.exe
PID 3548 wrote to memory of 3192	3548	ximo2ubzn1i.exe	regasm.exe
PID 3548 wrote to memory of 3192	3548	ximo2ubzn1i.exe	regasm.exe
PID 3548 wrote to memory of 3192	3548	ximo2ubzn1i.exe	regasm.exe
PID 3548 wrote to memory of 3192	3548	ximo2ubzn1i.exe	regasm.exe
PID 3548 wrote to memory of 3192	3548	ximo2ubzn1i.exe	regasm.exe

C:\Users\Admin\AppData\Local\Temp\39e8d4fac9f7aa4d0187d81f69b7dadebd9fe281a521ac04022d3b1b676f98a2N.exe
"C:\Users\Admin\AppData\Local\Temp\39e8d4fac9f7aa4d0187d81f69b7dadebd9fe281a521ac04022d3b1b676f98a2N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1120
- 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:3548
- - 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:3192

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
415KB

MD5
949c1ee94d4c926cd7672d6b1e9538c3

SHA1
70ccc9faf2efc4e4ea4846d7abe5ec3969dabccc

SHA256
97bfe3930b67b5818c6fbad108abe780c306d575356684df61d0a00915ee5978

SHA512
25b3d81e2fcd42575cf5a817684129b06b17c37585fd378648584da2ecec63e1c6662d16ad82958c1d2dbfc2a0b950b59ff5000eee4cde02865bde65b54766e0

Download Submit
memory/1120-20-0x00000000744A0000-0x0000000074C50000-memory.dmp

Filesize
7.7MB

Download
memory/1120-1-0x0000000000130000-0x000000000019E000-memory.dmp

Filesize
440KB

Download
memory/1120-2-0x0000000005080000-0x0000000005624000-memory.dmp

Filesize
5.6MB

Download
memory/1120-3-0x0000000004AD0000-0x0000000004B62000-memory.dmp

Filesize
584KB

Download
memory/1120-4-0x00000000744A0000-0x0000000074C50000-memory.dmp

Filesize
7.7MB

Download
memory/1120-5-0x0000000004A60000-0x0000000004A6A000-memory.dmp

Filesize
40KB

Download
memory/1120-6-0x0000000004DF0000-0x0000000004E2C000-memory.dmp

Filesize
240KB

Download
memory/1120-0-0x00000000744AE000-0x00000000744AF000-memory.dmp

Filesize
4KB

Download
memory/3192-28-0x0000000005270000-0x000000000530C000-memory.dmp

Filesize
624KB

Download
memory/3192-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3192-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3192-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3192-27-0x00000000744A0000-0x0000000074C50000-memory.dmp

Filesize
7.7MB

Download
memory/3192-30-0x0000000005250000-0x000000000525A000-memory.dmp

Filesize
40KB

Download
memory/3192-31-0x00000000054A0000-0x00000000054BE000-memory.dmp

Filesize
120KB

Download
memory/3192-32-0x00000000056C0000-0x00000000056CA000-memory.dmp

Filesize
40KB

Download
memory/3192-36-0x00000000744A0000-0x0000000074C50000-memory.dmp

Filesize
7.7MB

Download
memory/3548-22-0x00000000744A0000-0x0000000074C50000-memory.dmp

Filesize
7.7MB

Download
memory/3548-21-0x00000000744A0000-0x0000000074C50000-memory.dmp

Filesize
7.7MB

Download
memory/3548-33-0x00000000744A0000-0x0000000074C50000-memory.dmp

Filesize
7.7MB

Download
memory/3548-35-0x00000000744A0000-0x0000000074C50000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads