nanocore | 5662fcdd92b61586c76444eff1eb05941748fc399e2b2dd2daf35f1a8e47217d

General

Target

5662fcdd92b61586c76444eff1eb05941748fc399e2b2dd2daf35f1a8e47217d.exe
Size

413KB
MD5

0f7528228f5f1f403241747bd489b283
SHA1

d5448b701a5350e87f9c2e2e3a142af4e85c307b
SHA256

5662fcdd92b61586c76444eff1eb05941748fc399e2b2dd2daf35f1a8e47217d
SHA512

a010752dd12a3af64475e08235c49ec9db433da0fbbb61429e5da45a4582458a070160011063de565b4788cac52032c3e507eee3757774021972d1ca40c2d8a8
SSDEEP

6144:ITNE3ZRrnaBVlvphVxmP+6CiejgcME1cwYfU+va+RUm:ITNYrnE3bm/CiejewY5vl

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Control Panel\International\Geo\Nation	5662fcdd92b61586c76444eff1eb05941748fc399e2b2dd2daf35f1a8e47217d.exe

Executes dropped EXE 1 IoCs

pid	Process
1512	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-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c5e4gxfvd4v = "C:\\Users\\Admin\\AppData\\Roaming\\c5e4gxfvd4v\\ximo2ubzn1i.exe"	5662fcdd92b61586c76444eff1eb05941748fc399e2b2dd2daf35f1a8e47217d.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 1512 set thread context of 4524	1512	ximo2ubzn1i.exe	90

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	5662fcdd92b61586c76444eff1eb05941748fc399e2b2dd2daf35f1a8e47217d.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

pid	Process
4524	regasm.exe
4524	regasm.exe
4524	regasm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4524	regasm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4524	regasm.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3920 wrote to memory of 1512	3920	5662fcdd92b61586c76444eff1eb05941748fc399e2b2dd2daf35f1a8e47217d.exe	89
PID 3920 wrote to memory of 1512	3920	5662fcdd92b61586c76444eff1eb05941748fc399e2b2dd2daf35f1a8e47217d.exe	89
PID 3920 wrote to memory of 1512	3920	5662fcdd92b61586c76444eff1eb05941748fc399e2b2dd2daf35f1a8e47217d.exe	89
PID 1512 wrote to memory of 4524	1512	ximo2ubzn1i.exe	90
PID 1512 wrote to memory of 4524	1512	ximo2ubzn1i.exe	90
PID 1512 wrote to memory of 4524	1512	ximo2ubzn1i.exe	90
PID 1512 wrote to memory of 4524	1512	ximo2ubzn1i.exe	90
PID 1512 wrote to memory of 4524	1512	ximo2ubzn1i.exe	90
PID 1512 wrote to memory of 4524	1512	ximo2ubzn1i.exe	90
PID 1512 wrote to memory of 4524	1512	ximo2ubzn1i.exe	90
PID 1512 wrote to memory of 4524	1512	ximo2ubzn1i.exe	90

C:\Users\Admin\AppData\Local\Temp\5662fcdd92b61586c76444eff1eb05941748fc399e2b2dd2daf35f1a8e47217d.exe
"C:\Users\Admin\AppData\Local\Temp\5662fcdd92b61586c76444eff1eb05941748fc399e2b2dd2daf35f1a8e47217d.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3920
- 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:1512
- - 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:4524

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4380,i,2904906934812054273,11716976550456127484,262144 --variations-seed-version --mojo-platform-channel-handle=3860 /prefetch:8
1⤵
PID:5012

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
7fd137f9e47829c374a06bd8a17d297b

SHA1
69c3aafa1c7f75deb0a72d778b8074d955ba486d

SHA256
455a5ca7228bc843953a0237294025580d4c59466b2b820969a41d1e23220e35

SHA512
b0a318ef0ac757f0d2bcc4ad43ca5cddb38011ac39856af0bbbb32fc8c1cfe131f81fcae83ea387bf073f1cc49dbc072fefa3c7253564a2e160c3dd707bf45ca

Download Submit
memory/1512-35-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/1512-33-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/1512-22-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/1512-20-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/3920-5-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/3920-6-0x0000000005240000-0x000000000527C000-memory.dmp

Filesize
240KB

Download
memory/3920-0-0x000000007524E000-0x000000007524F000-memory.dmp

Filesize
4KB

Download
memory/3920-4-0x0000000004F20000-0x0000000004F2A000-memory.dmp

Filesize
40KB

Download
memory/3920-21-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/3920-3-0x0000000004D90000-0x0000000004E22000-memory.dmp

Filesize
584KB

Download
memory/3920-1-0x0000000000320000-0x000000000038E000-memory.dmp

Filesize
440KB

Download
memory/3920-2-0x00000000052A0000-0x0000000005844000-memory.dmp

Filesize
5.6MB

Download
memory/4524-27-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/4524-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4524-28-0x0000000004EC0000-0x0000000004F5C000-memory.dmp

Filesize
624KB

Download
memory/4524-30-0x0000000005300000-0x000000000530A000-memory.dmp

Filesize
40KB

Download
memory/4524-31-0x0000000005B50000-0x0000000005B6E000-memory.dmp

Filesize
120KB

Download
memory/4524-32-0x0000000005D70000-0x0000000005D7A000-memory.dmp

Filesize
40KB

Download
memory/4524-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4524-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4524-36-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads