nanocore | 70d75f0f3b96abff1102708b5454b622a2aba1b0738fe0f57362ecea2bf6a04d

General

Target

70d75f0f3b96abff1102708b5454b622a2aba1b0738fe0f57362ecea2bf6a04dN.exe
Size

413KB
MD5

a39d23eb09d78a27fa593c0a133e72b0
SHA1

a2204e577cbff135f4970226a29d495572d1f491
SHA256

70d75f0f3b96abff1102708b5454b622a2aba1b0738fe0f57362ecea2bf6a04d
SHA512

fda5a430140cd355b1dfa93fd0a9aa151db014a44aa6b244e39c5e743924bb697e6782c901c702e84ad93c8ac70ef866ca458e2ac0533a340e64c82356e1628d
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUf:ITNYrnE3bm/CiejewY5vQ

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:

70d75f0f3b96abff1102708b5454b622a2aba1b0738fe0f57362ecea2bf6a04dN.exe

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	70d75f0f3b96abff1102708b5454b622a2aba1b0738fe0f57362ecea2bf6a04dN.exe

Executes dropped EXE 1 IoCs

Processes:

ximo2ubzn1i.exe

pid	Process
708	ximo2ubzn1i.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

70d75f0f3b96abff1102708b5454b622a2aba1b0738fe0f57362ecea2bf6a04dN.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2392887640-1187051047-2909758433-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	70d75f0f3b96abff1102708b5454b622a2aba1b0738fe0f57362ecea2bf6a04dN.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 708 set thread context of 1928	708	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

Processes:

regasm.exe70d75f0f3b96abff1102708b5454b622a2aba1b0738fe0f57362ecea2bf6a04dN.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	70d75f0f3b96abff1102708b5454b622a2aba1b0738fe0f57362ecea2bf6a04dN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ximo2ubzn1i.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

regasm.exe

pid	Process
1928	regasm.exe
1928	regasm.exe
1928	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

regasm.exe

pid	Process
1928	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

regasm.exe

description	pid	Process
Token: SeDebugPrivilege	1928	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

70d75f0f3b96abff1102708b5454b622a2aba1b0738fe0f57362ecea2bf6a04dN.exeximo2ubzn1i.exe

description	pid	Process	procid_target
PID 4744 wrote to memory of 708	4744	70d75f0f3b96abff1102708b5454b622a2aba1b0738fe0f57362ecea2bf6a04dN.exe	82
PID 4744 wrote to memory of 708	4744	70d75f0f3b96abff1102708b5454b622a2aba1b0738fe0f57362ecea2bf6a04dN.exe	82
PID 4744 wrote to memory of 708	4744	70d75f0f3b96abff1102708b5454b622a2aba1b0738fe0f57362ecea2bf6a04dN.exe	82
PID 708 wrote to memory of 1928	708	ximo2ubzn1i.exe	83
PID 708 wrote to memory of 1928	708	ximo2ubzn1i.exe	83
PID 708 wrote to memory of 1928	708	ximo2ubzn1i.exe	83
PID 708 wrote to memory of 1928	708	ximo2ubzn1i.exe	83
PID 708 wrote to memory of 1928	708	ximo2ubzn1i.exe	83
PID 708 wrote to memory of 1928	708	ximo2ubzn1i.exe	83
PID 708 wrote to memory of 1928	708	ximo2ubzn1i.exe	83
PID 708 wrote to memory of 1928	708	ximo2ubzn1i.exe	83

C:\Users\Admin\AppData\Local\Temp\70d75f0f3b96abff1102708b5454b622a2aba1b0738fe0f57362ecea2bf6a04dN.exe
"C:\Users\Admin\AppData\Local\Temp\70d75f0f3b96abff1102708b5454b622a2aba1b0738fe0f57362ecea2bf6a04dN.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4744
- 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:708
- - 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:1928

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
7aeff3c09dce34ede3578f3942351e63

SHA1
3106178947a1eb189ab096ea5dc1a3bff7033980

SHA256
b3c8c82a51bca6ce280699320dd5929068bdd50c326116c0c4718debee4373ec

SHA512
963cecc712425fe68ebef7ee85e1952b67ad2b3ba43069065b2cfb31189c8220329a094f2b391785758f3a58bf8653a0c3b9a2be9b06b28d2e60a5b2f9fbe2eb

Download Submit
memory/708-35-0x00000000751F0000-0x00000000759A0000-memory.dmp

Filesize
7.7MB

Download
memory/708-33-0x00000000751F0000-0x00000000759A0000-memory.dmp

Filesize
7.7MB

Download
memory/708-22-0x00000000751F0000-0x00000000759A0000-memory.dmp

Filesize
7.7MB

Download
memory/708-21-0x00000000751F0000-0x00000000759A0000-memory.dmp

Filesize
7.7MB

Download
memory/1928-28-0x0000000005710000-0x00000000057AC000-memory.dmp

Filesize
624KB

Download
memory/1928-32-0x0000000006600000-0x000000000660A000-memory.dmp

Filesize
40KB

Download
memory/1928-36-0x00000000751F0000-0x00000000759A0000-memory.dmp

Filesize
7.7MB

Download
memory/1928-31-0x0000000005BF0000-0x0000000005C0E000-memory.dmp

Filesize
120KB

Download
memory/1928-30-0x00000000058C0000-0x00000000058CA000-memory.dmp

Filesize
40KB

Download
memory/1928-27-0x00000000751F0000-0x00000000759A0000-memory.dmp

Filesize
7.7MB

Download
memory/1928-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1928-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1928-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4744-3-0x0000000004B90000-0x0000000004C22000-memory.dmp

Filesize
584KB

Download
memory/4744-0-0x00000000751FE000-0x00000000751FF000-memory.dmp

Filesize
4KB

Download
memory/4744-20-0x00000000751F0000-0x00000000759A0000-memory.dmp

Filesize
7.7MB

Download
memory/4744-4-0x0000000004B30000-0x0000000004B3A000-memory.dmp

Filesize
40KB

Download
memory/4744-6-0x0000000004DD0000-0x0000000004E0C000-memory.dmp

Filesize
240KB

Download
memory/4744-2-0x00000000050A0000-0x0000000005644000-memory.dmp

Filesize
5.6MB

Download
memory/4744-1-0x00000000000C0000-0x000000000012E000-memory.dmp

Filesize
440KB

Download
memory/4744-5-0x00000000751F0000-0x00000000759A0000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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