nanocore | 7ec0d976520afbf416d12c826ec10b4d8170a375af1cc631da6b1338ae87f340

General

Target

7ec0d976520afbf416d12c826ec10b4d8170a375af1cc631da6b1338ae87f340N.exe
Size

413KB
MD5

17cf28d1105ab3b8c8610cbcf9a5bc80
SHA1

2e2d350c2682cbd72bb815c9da9161226c86dc55
SHA256

7ec0d976520afbf416d12c826ec10b4d8170a375af1cc631da6b1338ae87f340
SHA512

43444bb055baa4206faff6013ebbceec722531430e2907919f295fed140aec0beced6eb686d6168a752c18a664c3cebf3c8f5fbc65cf0db0cb3bbd0669708968
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUM:ITNYrnE3bm/CiejewY5vP

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:

7ec0d976520afbf416d12c826ec10b4d8170a375af1cc631da6b1338ae87f340N.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\Control Panel\International\Geo\Nation	7ec0d976520afbf416d12c826ec10b4d8170a375af1cc631da6b1338ae87f340N.exe

Executes dropped EXE 1 IoCs

Processes:

ximo2ubzn1i.exe

pid	Process
3596	ximo2ubzn1i.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

7ec0d976520afbf416d12c826ec10b4d8170a375af1cc631da6b1338ae87f340N.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	7ec0d976520afbf416d12c826ec10b4d8170a375af1cc631da6b1338ae87f340N.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 3596 set thread context of 2400	3596	ximo2ubzn1i.exe	82

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:

7ec0d976520afbf416d12c826ec10b4d8170a375af1cc631da6b1338ae87f340N.exeximo2ubzn1i.exeregasm.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7ec0d976520afbf416d12c826ec10b4d8170a375af1cc631da6b1338ae87f340N.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
2400	regasm.exe
2400	regasm.exe
2400	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

regasm.exe

pid	Process
2400	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

regasm.exe

description	pid	Process
Token: SeDebugPrivilege	2400	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

7ec0d976520afbf416d12c826ec10b4d8170a375af1cc631da6b1338ae87f340N.exeximo2ubzn1i.exe

description	pid	Process	procid_target
PID 2988 wrote to memory of 3596	2988	7ec0d976520afbf416d12c826ec10b4d8170a375af1cc631da6b1338ae87f340N.exe	81
PID 2988 wrote to memory of 3596	2988	7ec0d976520afbf416d12c826ec10b4d8170a375af1cc631da6b1338ae87f340N.exe	81
PID 2988 wrote to memory of 3596	2988	7ec0d976520afbf416d12c826ec10b4d8170a375af1cc631da6b1338ae87f340N.exe	81
PID 3596 wrote to memory of 2400	3596	ximo2ubzn1i.exe	82
PID 3596 wrote to memory of 2400	3596	ximo2ubzn1i.exe	82
PID 3596 wrote to memory of 2400	3596	ximo2ubzn1i.exe	82
PID 3596 wrote to memory of 2400	3596	ximo2ubzn1i.exe	82
PID 3596 wrote to memory of 2400	3596	ximo2ubzn1i.exe	82
PID 3596 wrote to memory of 2400	3596	ximo2ubzn1i.exe	82
PID 3596 wrote to memory of 2400	3596	ximo2ubzn1i.exe	82
PID 3596 wrote to memory of 2400	3596	ximo2ubzn1i.exe	82

C:\Users\Admin\AppData\Local\Temp\7ec0d976520afbf416d12c826ec10b4d8170a375af1cc631da6b1338ae87f340N.exe
"C:\Users\Admin\AppData\Local\Temp\7ec0d976520afbf416d12c826ec10b4d8170a375af1cc631da6b1338ae87f340N.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2988
- 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:3596
- - 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:2400

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
00ea0c1eff4afca6a47d7ebf3476580c

SHA1
f0f2a1d5a8c5edc0961dcd803a5f90e374be15d7

SHA256
40e0a93ee8b59993b3dfdccf705760a70e24f46a0b84819fe7b894752dd20636

SHA512
be75df1284fb01af523b824bca3106be3e09088d809ee0e67b60a486dc76e9333768829bd921ac74cd9bfb17d84abe862c213ac25a321feb702ea8160575b302

Download Submit
memory/2400-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2400-36-0x0000000074D10000-0x00000000754C0000-memory.dmp

Filesize
7.7MB

Download
memory/2400-32-0x0000000005510000-0x000000000551A000-memory.dmp

Filesize
40KB

Download
memory/2400-31-0x00000000052E0000-0x00000000052FE000-memory.dmp

Filesize
120KB

Download
memory/2400-30-0x00000000052D0000-0x00000000052DA000-memory.dmp

Filesize
40KB

Download
memory/2400-28-0x0000000005300000-0x000000000539C000-memory.dmp

Filesize
624KB

Download
memory/2400-27-0x0000000074D10000-0x00000000754C0000-memory.dmp

Filesize
7.7MB

Download
memory/2400-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2400-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2988-5-0x00000000057E0000-0x00000000057EA000-memory.dmp

Filesize
40KB

Download
memory/2988-21-0x0000000074D10000-0x00000000754C0000-memory.dmp

Filesize
7.7MB

Download
memory/2988-6-0x0000000005AA0000-0x0000000005ADC000-memory.dmp

Filesize
240KB

Download
memory/2988-0-0x0000000074D1E000-0x0000000074D1F000-memory.dmp

Filesize
4KB

Download
memory/2988-4-0x0000000074D10000-0x00000000754C0000-memory.dmp

Filesize
7.7MB

Download
memory/2988-3-0x0000000005840000-0x00000000058D2000-memory.dmp

Filesize
584KB

Download
memory/2988-2-0x0000000005DF0000-0x0000000006394000-memory.dmp

Filesize
5.6MB

Download
memory/2988-1-0x0000000000D80000-0x0000000000DEE000-memory.dmp

Filesize
440KB

Download
memory/3596-22-0x0000000074D10000-0x00000000754C0000-memory.dmp

Filesize
7.7MB

Download
memory/3596-20-0x0000000074D10000-0x00000000754C0000-memory.dmp

Filesize
7.7MB

Download
memory/3596-33-0x0000000074D10000-0x00000000754C0000-memory.dmp

Filesize
7.7MB

Download
memory/3596-35-0x0000000074D10000-0x00000000754C0000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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