nanocore | 7ee080c3df90000c77d68fcb1248a7856ef5a7fd5b964ff0006a7c9ee336dd7f

General

Target

7ee080c3df90000c77d68fcb1248a7856ef5a7fd5b964ff0006a7c9ee336dd7fN.exe
Size

416KB
MD5

74a54e7ceeb7bd23ed45a3d259257480
SHA1

45d5471cd50f0a970c8c1e11e770bf59e626567b
SHA256

7ee080c3df90000c77d68fcb1248a7856ef5a7fd5b964ff0006a7c9ee336dd7f
SHA512

7c5f4f4b59a271ac531a357f5777671119a01e4c367f1b068d019054e24a8a92fd81580d021dd259c5f3776184bfabbe2dcdb1d6d0cb316140c8d1719c54719a
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU7TQ:ITNYrnE3bm/CiejewY5vb

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	7ee080c3df90000c77d68fcb1248a7856ef5a7fd5b964ff0006a7c9ee336dd7fN.exe

Executes dropped EXE 1 IoCs

pid	Process
3984	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-1-5-21-493223053-2004649691-1575712786-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	7ee080c3df90000c77d68fcb1248a7856ef5a7fd5b964ff0006a7c9ee336dd7fN.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 3984 set thread context of 2044	3984	ximo2ubzn1i.exe	85

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	7ee080c3df90000c77d68fcb1248a7856ef5a7fd5b964ff0006a7c9ee336dd7fN.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2044	regasm.exe
2044	regasm.exe
2044	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2044	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2044	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2872 wrote to memory of 3984	2872	7ee080c3df90000c77d68fcb1248a7856ef5a7fd5b964ff0006a7c9ee336dd7fN.exe	84
PID 2872 wrote to memory of 3984	2872	7ee080c3df90000c77d68fcb1248a7856ef5a7fd5b964ff0006a7c9ee336dd7fN.exe	84
PID 2872 wrote to memory of 3984	2872	7ee080c3df90000c77d68fcb1248a7856ef5a7fd5b964ff0006a7c9ee336dd7fN.exe	84
PID 3984 wrote to memory of 2044	3984	ximo2ubzn1i.exe	85
PID 3984 wrote to memory of 2044	3984	ximo2ubzn1i.exe	85
PID 3984 wrote to memory of 2044	3984	ximo2ubzn1i.exe	85
PID 3984 wrote to memory of 2044	3984	ximo2ubzn1i.exe	85
PID 3984 wrote to memory of 2044	3984	ximo2ubzn1i.exe	85
PID 3984 wrote to memory of 2044	3984	ximo2ubzn1i.exe	85
PID 3984 wrote to memory of 2044	3984	ximo2ubzn1i.exe	85
PID 3984 wrote to memory of 2044	3984	ximo2ubzn1i.exe	85

C:\Users\Admin\AppData\Local\Temp\7ee080c3df90000c77d68fcb1248a7856ef5a7fd5b964ff0006a7c9ee336dd7fN.exe
"C:\Users\Admin\AppData\Local\Temp\7ee080c3df90000c77d68fcb1248a7856ef5a7fd5b964ff0006a7c9ee336dd7fN.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2872
- 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:3984
- - 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:2044

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
416KB

MD5
bb60318fab04cbaa4f77d53f6ef57b6b

SHA1
a2279afd337fc1fdf06f7d598481beea78b4287d

SHA256
47b28f493c0ddfe95d2d96fadb65f9835de20d602b65b178ddc1f50975c1d0a1

SHA512
b4cb3b43a8cd54aaec1b8a7971041af151151acf89c46fb28060cc26c442fe1d08d8be59a4bf3d4389c02b22dfaf9eb7aa7d5141bb0b6afe1260b582b97ba628

Download Submit
memory/2044-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2044-36-0x0000000074B80000-0x0000000075330000-memory.dmp

Filesize
7.7MB

Download
memory/2044-31-0x0000000005720000-0x000000000573E000-memory.dmp

Filesize
120KB

Download
memory/2044-32-0x0000000006130000-0x000000000613A000-memory.dmp

Filesize
40KB

Download
memory/2044-30-0x0000000005400000-0x000000000540A000-memory.dmp

Filesize
40KB

Download
memory/2044-28-0x0000000005230000-0x00000000052CC000-memory.dmp

Filesize
624KB

Download
memory/2044-27-0x0000000074B80000-0x0000000075330000-memory.dmp

Filesize
7.7MB

Download
memory/2044-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2044-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2872-4-0x0000000005820000-0x000000000582A000-memory.dmp

Filesize
40KB

Download
memory/2872-20-0x0000000074B80000-0x0000000075330000-memory.dmp

Filesize
7.7MB

Download
memory/2872-6-0x0000000005DF0000-0x0000000005E2C000-memory.dmp

Filesize
240KB

Download
memory/2872-0-0x0000000074B8E000-0x0000000074B8F000-memory.dmp

Filesize
4KB

Download
memory/2872-5-0x0000000074B80000-0x0000000075330000-memory.dmp

Filesize
7.7MB

Download
memory/2872-3-0x0000000005830000-0x00000000058C2000-memory.dmp

Filesize
584KB

Download
memory/2872-2-0x0000000005EE0000-0x0000000006484000-memory.dmp

Filesize
5.6MB

Download
memory/2872-1-0x0000000000DC0000-0x0000000000E2E000-memory.dmp

Filesize
440KB

Download
memory/3984-22-0x0000000074B80000-0x0000000075330000-memory.dmp

Filesize
7.7MB

Download
memory/3984-21-0x0000000074B80000-0x0000000075330000-memory.dmp

Filesize
7.7MB

Download
memory/3984-33-0x0000000074B80000-0x0000000075330000-memory.dmp

Filesize
7.7MB

Download
memory/3984-35-0x0000000074B80000-0x0000000075330000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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