nanocore | 6cc1b5300935e8120d7ab159d8f60073fcd93c1f0ac1fb622a312e45336d3e73

General

Target

6cc1b5300935e8120d7ab159d8f60073fcd93c1f0ac1fb622a312e45336d3e73.exe
Size

413KB
MD5

8ce0fc69466b0a83dd0b01e4ad5beabb
SHA1

b7e60e1630c434ed11706c113ca81c866b08506e
SHA256

6cc1b5300935e8120d7ab159d8f60073fcd93c1f0ac1fb622a312e45336d3e73
SHA512

271f54304f1d41eef03e08d5da79d0da3289d33315391bfd0815eed82824c0d7348aa837b9bc31b824495f6f991b8245d070f63ebfdb40c5406ec04c8fd03ca9
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUW:ITNYrnE3bm/CiejewY5vh

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	6cc1b5300935e8120d7ab159d8f60073fcd93c1f0ac1fb622a312e45336d3e73.exe

Executes dropped EXE 1 IoCs

pid	Process
3248	ximo2ubzn1i.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-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	6cc1b5300935e8120d7ab159d8f60073fcd93c1f0ac1fb622a312e45336d3e73.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 3248 set thread context of 3572	3248	ximo2ubzn1i.exe	83

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	ximo2ubzn1i.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regasm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6cc1b5300935e8120d7ab159d8f60073fcd93c1f0ac1fb622a312e45336d3e73.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3572	regasm.exe
3572	regasm.exe
3572	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3572	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3572	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4500 wrote to memory of 3248	4500	6cc1b5300935e8120d7ab159d8f60073fcd93c1f0ac1fb622a312e45336d3e73.exe	82
PID 4500 wrote to memory of 3248	4500	6cc1b5300935e8120d7ab159d8f60073fcd93c1f0ac1fb622a312e45336d3e73.exe	82
PID 4500 wrote to memory of 3248	4500	6cc1b5300935e8120d7ab159d8f60073fcd93c1f0ac1fb622a312e45336d3e73.exe	82
PID 3248 wrote to memory of 3572	3248	ximo2ubzn1i.exe	83
PID 3248 wrote to memory of 3572	3248	ximo2ubzn1i.exe	83
PID 3248 wrote to memory of 3572	3248	ximo2ubzn1i.exe	83
PID 3248 wrote to memory of 3572	3248	ximo2ubzn1i.exe	83
PID 3248 wrote to memory of 3572	3248	ximo2ubzn1i.exe	83
PID 3248 wrote to memory of 3572	3248	ximo2ubzn1i.exe	83
PID 3248 wrote to memory of 3572	3248	ximo2ubzn1i.exe	83
PID 3248 wrote to memory of 3572	3248	ximo2ubzn1i.exe	83

C:\Users\Admin\AppData\Local\Temp\6cc1b5300935e8120d7ab159d8f60073fcd93c1f0ac1fb622a312e45336d3e73.exe
"C:\Users\Admin\AppData\Local\Temp\6cc1b5300935e8120d7ab159d8f60073fcd93c1f0ac1fb622a312e45336d3e73.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4500
- 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:3248
- - 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:3572

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
413KB

MD5
84654ad68ef281f801824b34e7e281ea

SHA1
edf47e4ff63b7b75434d8e9e558429efa88ef3ab

SHA256
115c4b60a24583e51873b08208eaffd5da3fe6fa76d597c0d5b51fc1b6f46b21

SHA512
830c96df53cdab988092a3e93018aa6bf2c7c82e197aed6afc0634d860ca9b035c0cfc5d4e847b2f02a0a23b412a6a677c830d26682a40b2726868735747cf37

Download Submit
memory/3248-35-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/3248-33-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/3248-22-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/3248-21-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/3572-28-0x0000000004E90000-0x0000000004F2C000-memory.dmp

Filesize
624KB

Download
memory/3572-32-0x0000000005D80000-0x0000000005D8A000-memory.dmp

Filesize
40KB

Download
memory/3572-36-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/3572-31-0x0000000005B60000-0x0000000005B7E000-memory.dmp

Filesize
120KB

Download
memory/3572-30-0x0000000005080000-0x000000000508A000-memory.dmp

Filesize
40KB

Download
memory/3572-27-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/3572-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3572-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3572-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4500-3-0x0000000004A60000-0x0000000004AF2000-memory.dmp

Filesize
584KB

Download
memory/4500-0-0x000000007486E000-0x000000007486F000-memory.dmp

Filesize
4KB

Download
memory/4500-20-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download
memory/4500-4-0x0000000004A10000-0x0000000004A1A000-memory.dmp

Filesize
40KB

Download
memory/4500-6-0x0000000004CB0000-0x0000000004CEC000-memory.dmp

Filesize
240KB

Download
memory/4500-2-0x0000000005010000-0x00000000055B4000-memory.dmp

Filesize
5.6MB

Download
memory/4500-1-0x00000000000F0000-0x000000000015E000-memory.dmp

Filesize
440KB

Download
memory/4500-5-0x0000000074860000-0x0000000075010000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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