nanocore | 09f66a9a2e8a8cf68e4fc41f892faa1dd3bdda615114e3122e1c2911040aa67f

General

Target

09f66a9a2e8a8cf68e4fc41f892faa1dd3bdda615114e3122e1c2911040aa67f.exe
Size

414KB
MD5

29160a643ee8f52e925bed7aa2395f65
SHA1

44229d2dc5c47b8eddaa011e4ba73f1b2f95ee45
SHA256

09f66a9a2e8a8cf68e4fc41f892faa1dd3bdda615114e3122e1c2911040aa67f
SHA512

1871ab557d85e9753a7d153e6ad6d4565bc4da40c7944e845537d391af261e827fbca89dd2843366cd9a7660388fe70aea61913a421272948bba32230a458882
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUGG:ITNYrnE3bm/CiejewY5v5G

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:

09f66a9a2e8a8cf68e4fc41f892faa1dd3bdda615114e3122e1c2911040aa67f.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3756129449-3121373848-4276368241-1000\Control Panel\International\Geo\Nation	09f66a9a2e8a8cf68e4fc41f892faa1dd3bdda615114e3122e1c2911040aa67f.exe

Executes dropped EXE 1 IoCs

Processes:

ximo2ubzn1i.exe

pid	Process
4932	ximo2ubzn1i.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

09f66a9a2e8a8cf68e4fc41f892faa1dd3bdda615114e3122e1c2911040aa67f.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"	09f66a9a2e8a8cf68e4fc41f892faa1dd3bdda615114e3122e1c2911040aa67f.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 4932 set thread context of 384	4932	ximo2ubzn1i.exe	88

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:

09f66a9a2e8a8cf68e4fc41f892faa1dd3bdda615114e3122e1c2911040aa67f.exeximo2ubzn1i.exeregasm.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	09f66a9a2e8a8cf68e4fc41f892faa1dd3bdda615114e3122e1c2911040aa67f.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
384	regasm.exe
384	regasm.exe
384	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

regasm.exe

pid	Process
384	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

regasm.exe

description	pid	Process
Token: SeDebugPrivilege	384	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

09f66a9a2e8a8cf68e4fc41f892faa1dd3bdda615114e3122e1c2911040aa67f.exeximo2ubzn1i.exe

description	pid	Process	procid_target
PID 1892 wrote to memory of 4932	1892	09f66a9a2e8a8cf68e4fc41f892faa1dd3bdda615114e3122e1c2911040aa67f.exe	87
PID 1892 wrote to memory of 4932	1892	09f66a9a2e8a8cf68e4fc41f892faa1dd3bdda615114e3122e1c2911040aa67f.exe	87
PID 1892 wrote to memory of 4932	1892	09f66a9a2e8a8cf68e4fc41f892faa1dd3bdda615114e3122e1c2911040aa67f.exe	87
PID 4932 wrote to memory of 384	4932	ximo2ubzn1i.exe	88
PID 4932 wrote to memory of 384	4932	ximo2ubzn1i.exe	88
PID 4932 wrote to memory of 384	4932	ximo2ubzn1i.exe	88
PID 4932 wrote to memory of 384	4932	ximo2ubzn1i.exe	88
PID 4932 wrote to memory of 384	4932	ximo2ubzn1i.exe	88
PID 4932 wrote to memory of 384	4932	ximo2ubzn1i.exe	88
PID 4932 wrote to memory of 384	4932	ximo2ubzn1i.exe	88
PID 4932 wrote to memory of 384	4932	ximo2ubzn1i.exe	88

C:\Users\Admin\AppData\Local\Temp\09f66a9a2e8a8cf68e4fc41f892faa1dd3bdda615114e3122e1c2911040aa67f.exe
"C:\Users\Admin\AppData\Local\Temp\09f66a9a2e8a8cf68e4fc41f892faa1dd3bdda615114e3122e1c2911040aa67f.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1892
- 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:4932
- - 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:384

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
2a198cba30b1b580e7cd2297c5e1836d

SHA1
dc5ba8a20cf0ae74bb6e1e629cc9f3801628be90

SHA256
0e8fee9b2beed51a56571abc3c683bb0644186293f05a3243a1f6e1df3acf70a

SHA512
9b587c08287554a0410733eddb1e42abe98cb819b603f0331ddee803879eb514f398fa5684ca822368ccf5e2b6bd0c8232b93baa75120824a0f98433a17a9252

Download Submit
memory/384-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/384-36-0x0000000075370000-0x0000000075B20000-memory.dmp

Filesize
7.7MB

Download
memory/384-32-0x0000000006070000-0x000000000607A000-memory.dmp

Filesize
40KB

Download
memory/384-31-0x0000000005700000-0x000000000571E000-memory.dmp

Filesize
120KB

Download
memory/384-30-0x0000000005380000-0x000000000538A000-memory.dmp

Filesize
40KB

Download
memory/384-28-0x0000000005220000-0x00000000052BC000-memory.dmp

Filesize
624KB

Download
memory/384-27-0x0000000075370000-0x0000000075B20000-memory.dmp

Filesize
7.7MB

Download
memory/384-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/384-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1892-5-0x0000000004C60000-0x0000000004C6A000-memory.dmp

Filesize
40KB

Download
memory/1892-20-0x0000000075370000-0x0000000075B20000-memory.dmp

Filesize
7.7MB

Download
memory/1892-6-0x0000000005030000-0x000000000506C000-memory.dmp

Filesize
240KB

Download
memory/1892-0-0x000000007537E000-0x000000007537F000-memory.dmp

Filesize
4KB

Download
memory/1892-4-0x0000000075370000-0x0000000075B20000-memory.dmp

Filesize
7.7MB

Download
memory/1892-3-0x0000000004CE0000-0x0000000004D72000-memory.dmp

Filesize
584KB

Download
memory/1892-2-0x00000000051F0000-0x0000000005794000-memory.dmp

Filesize
5.6MB

Download
memory/1892-1-0x00000000001F0000-0x000000000025E000-memory.dmp

Filesize
440KB

Download
memory/4932-22-0x0000000075370000-0x0000000075B20000-memory.dmp

Filesize
7.7MB

Download
memory/4932-21-0x0000000075370000-0x0000000075B20000-memory.dmp

Filesize
7.7MB

Download
memory/4932-33-0x0000000075370000-0x0000000075B20000-memory.dmp

Filesize
7.7MB

Download
memory/4932-35-0x0000000075370000-0x0000000075B20000-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