nanocore | 17a40124df589c5f58baeb1021793d7c8258841a89e564d37416579982d9820f

General

Target

17a40124df589c5f58baeb1021793d7c8258841a89e564d37416579982d9820f.exe
Size

413KB
MD5

1fbe8dd021615ff072695234fbe98db6
SHA1

04e1a86d6342978db8571b7fc017f5d55f9378cb
SHA256

17a40124df589c5f58baeb1021793d7c8258841a89e564d37416579982d9820f
SHA512

838011c000cf3a0f4b36e9cc9f843b191fe5ce82b34d34341152ec4a21ae0f0e86101059aee656956ac1862ed6ce510bf125e0a0f1c22ddf5de86f20dd3bfeb4
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUJ:ITNYrnE3bm/CiejewY5vO

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

Executes dropped EXE 1 IoCs

pid	Process
2528	ximo2ubzn1i.exe

Loads dropped DLL 1 IoCs

pid	Process
2524	17a40124df589c5f58baeb1021793d7c8258841a89e564d37416579982d9820f.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"	17a40124df589c5f58baeb1021793d7c8258841a89e564d37416579982d9820f.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 2528 set thread context of 2824	2528	ximo2ubzn1i.exe	31

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	regasm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	17a40124df589c5f58baeb1021793d7c8258841a89e564d37416579982d9820f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ximo2ubzn1i.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2824	regasm.exe
2824	regasm.exe
2824	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2824	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2824	regasm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2524 wrote to memory of 2528	2524	17a40124df589c5f58baeb1021793d7c8258841a89e564d37416579982d9820f.exe	30
PID 2524 wrote to memory of 2528	2524	17a40124df589c5f58baeb1021793d7c8258841a89e564d37416579982d9820f.exe	30
PID 2524 wrote to memory of 2528	2524	17a40124df589c5f58baeb1021793d7c8258841a89e564d37416579982d9820f.exe	30
PID 2524 wrote to memory of 2528	2524	17a40124df589c5f58baeb1021793d7c8258841a89e564d37416579982d9820f.exe	30
PID 2528 wrote to memory of 2824	2528	ximo2ubzn1i.exe	31
PID 2528 wrote to memory of 2824	2528	ximo2ubzn1i.exe	31
PID 2528 wrote to memory of 2824	2528	ximo2ubzn1i.exe	31
PID 2528 wrote to memory of 2824	2528	ximo2ubzn1i.exe	31
PID 2528 wrote to memory of 2824	2528	ximo2ubzn1i.exe	31
PID 2528 wrote to memory of 2824	2528	ximo2ubzn1i.exe	31
PID 2528 wrote to memory of 2824	2528	ximo2ubzn1i.exe	31
PID 2528 wrote to memory of 2824	2528	ximo2ubzn1i.exe	31
PID 2528 wrote to memory of 2824	2528	ximo2ubzn1i.exe	31
PID 2528 wrote to memory of 2824	2528	ximo2ubzn1i.exe	31
PID 2528 wrote to memory of 2824	2528	ximo2ubzn1i.exe	31
PID 2528 wrote to memory of 2824	2528	ximo2ubzn1i.exe	31

C:\Users\Admin\AppData\Local\Temp\17a40124df589c5f58baeb1021793d7c8258841a89e564d37416579982d9820f.exe
"C:\Users\Admin\AppData\Local\Temp\17a40124df589c5f58baeb1021793d7c8258841a89e564d37416579982d9820f.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2524
- 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:2528
- - 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:2824

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
413KB

MD5
46450783648e02216ff3b4b14437fe6f

SHA1
a9c48a45ec5409b5aeaf330221ed87ec9cfe2519

SHA256
5046014509f0df6f15d2eeb6508a06b35680e458965d02f46ae262ccdb7f53b1

SHA512
db2d2f48a4062c3c321c1dc8cce67c51e0ecd5c6d434c94fe9501aa905c396f4bc834841c4bf696c64cc7fb778c2385dc71a0f9c3021b53b420d8ea1c5479cf5

Download Submit
memory/2524-1-0x0000000000EC0000-0x0000000000F2E000-memory.dmp

Filesize
440KB

Download
memory/2524-2-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2524-3-0x0000000000510000-0x000000000054C000-memory.dmp

Filesize
240KB

Download
memory/2524-12-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2524-0-0x0000000074E8E000-0x0000000074E8F000-memory.dmp

Filesize
4KB

Download
memory/2528-38-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2528-13-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2528-14-0x0000000000A10000-0x0000000000A7E000-memory.dmp

Filesize
440KB

Download
memory/2528-15-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2528-39-0x0000000074E80000-0x000000007556E000-memory.dmp

Filesize
6.9MB

Download
memory/2824-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2824-27-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2824-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2824-20-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2824-18-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2824-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2824-35-0x00000000004A0000-0x00000000004AA000-memory.dmp

Filesize
40KB

Download
memory/2824-36-0x00000000004D0000-0x00000000004EE000-memory.dmp

Filesize
120KB

Download
memory/2824-37-0x00000000004B0000-0x00000000004BA000-memory.dmp

Filesize
40KB

Download
memory/2824-33-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2824-16-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads