nanocore | 46f92ebe290305fbfa65465b24f2c058c3ad05ec6e0858345d00d407efbe1994

General

Target

46f92ebe290305fbfa65465b24f2c058c3ad05ec6e0858345d00d407efbe1994.exe
Size

416KB
MD5

d8fdfbfd5c63977d3a802fe8b185a61f
SHA1

dcab16d4ee8909794148c357abf2ab45d6d17fff
SHA256

46f92ebe290305fbfa65465b24f2c058c3ad05ec6e0858345d00d407efbe1994
SHA512

0e5ffec28eb71314504a30c8d7c7bbb68a0b7aa79f0181360f9f9f99db434bdc27e581e893ff8b7da7bfbeb700a131f11b3651709655564011580df04ca261e8
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RU2:ITNYrnE3bm/CiejewY5vX

Score

10^/10

nanocore defense_evasion discovery 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

Executes dropped EXE 1 IoCs

pid	Process
2760	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

pid	Process
2192	46f92ebe290305fbfa65465b24f2c058c3ad05ec6e0858345d00d407efbe1994.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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	46f92ebe290305fbfa65465b24f2c058c3ad05ec6e0858345d00d407efbe1994.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

defense_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 2760 set thread context of 2620	2760	ximo2ubzn1i.exe	29

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	46f92ebe290305fbfa65465b24f2c058c3ad05ec6e0858345d00d407efbe1994.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 2 IoCs

pid	Process
2620	regasm.exe
2620	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2620	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2620	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2192 wrote to memory of 2760	2192	46f92ebe290305fbfa65465b24f2c058c3ad05ec6e0858345d00d407efbe1994.exe	28
PID 2192 wrote to memory of 2760	2192	46f92ebe290305fbfa65465b24f2c058c3ad05ec6e0858345d00d407efbe1994.exe	28
PID 2192 wrote to memory of 2760	2192	46f92ebe290305fbfa65465b24f2c058c3ad05ec6e0858345d00d407efbe1994.exe	28
PID 2192 wrote to memory of 2760	2192	46f92ebe290305fbfa65465b24f2c058c3ad05ec6e0858345d00d407efbe1994.exe	28
PID 2760 wrote to memory of 2620	2760	ximo2ubzn1i.exe	29
PID 2760 wrote to memory of 2620	2760	ximo2ubzn1i.exe	29
PID 2760 wrote to memory of 2620	2760	ximo2ubzn1i.exe	29
PID 2760 wrote to memory of 2620	2760	ximo2ubzn1i.exe	29
PID 2760 wrote to memory of 2620	2760	ximo2ubzn1i.exe	29
PID 2760 wrote to memory of 2620	2760	ximo2ubzn1i.exe	29
PID 2760 wrote to memory of 2620	2760	ximo2ubzn1i.exe	29
PID 2760 wrote to memory of 2620	2760	ximo2ubzn1i.exe	29
PID 2760 wrote to memory of 2620	2760	ximo2ubzn1i.exe	29
PID 2760 wrote to memory of 2620	2760	ximo2ubzn1i.exe	29
PID 2760 wrote to memory of 2620	2760	ximo2ubzn1i.exe	29
PID 2760 wrote to memory of 2620	2760	ximo2ubzn1i.exe	29

C:\Users\Admin\AppData\Local\Temp\46f92ebe290305fbfa65465b24f2c058c3ad05ec6e0858345d00d407efbe1994.exe
"C:\Users\Admin\AppData\Local\Temp\46f92ebe290305fbfa65465b24f2c058c3ad05ec6e0858345d00d407efbe1994.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2192
- 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:2760
- - 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:2620

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

System Information Discovery

2

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

\Users\Admin\AppData\Roaming\c5e4gxfvd4v\ximo2ubzn1i.exe

Filesize
416KB

MD5
00ca7a3e1fc5c55ffcfdc878407f719d

SHA1
1b5f0e05a942c26a2b7d8994ad70fa08ddb229b8

SHA256
1d674abda4b72984bcfa7f53078c50a524862ebf27e9cfc9301c55a4c8318ff5

SHA512
241d67fea70984da9de33f832c5b739e1b56a1ecab6d5731cb0b39460b9204f91b427b104ba3e7afea84bc951d50ea72a938f3e7f7c55cbebf5a2c9a09c7c068

Download Submit
memory/2192-14-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2192-1-0x0000000001370000-0x00000000013DE000-memory.dmp

Filesize
440KB

Download
memory/2192-2-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2192-3-0x0000000000AC0000-0x0000000000AFC000-memory.dmp

Filesize
240KB

Download
memory/2192-0-0x0000000074E8E000-0x0000000074E8F000-memory.dmp

Filesize
4KB

Download
memory/2620-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2620-23-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2620-32-0x0000000000890000-0x000000000089A000-memory.dmp

Filesize
40KB

Download
memory/2620-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2620-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2620-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2620-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2620-31-0x0000000000870000-0x000000000088E000-memory.dmp

Filesize
120KB

Download
memory/2620-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2620-30-0x0000000000780000-0x000000000078A000-memory.dmp

Filesize
40KB

Download
memory/2620-17-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2760-12-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2760-13-0x0000000000090000-0x00000000000FE000-memory.dmp

Filesize
440KB

Download
memory/2760-15-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2760-33-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2760-34-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads