nanocore | fca06d8a111b6799913d2487f47cbf45cb5f4f89d78165d8621986c563ea0fad

General

Target

fca06d8a111b6799913d2487f47cbf45cb5f4f89d78165d8621986c563ea0fad.exe
Size

282KB
MD5

52d0c236a13464ea6f28e0bf9989a159
SHA1

8c3d0ce7e30c8f85521e2ede54150ff06e3e84ae
SHA256

fca06d8a111b6799913d2487f47cbf45cb5f4f89d78165d8621986c563ea0fad
SHA512

3a395f6e738b1fa7348db8e4d375adf242454602f59250fda3f19440647561283f97ece1d9b6cb38398f9b184e7700cb8ef19d7ea39ac2f75f4ad474a132cbc5
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkf1Q:boSeGUA5YZazpXUmZhZ6S3

Score

10^/10

nanocore discovery evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

sysupdate24.ddns.net:45400

Mutex

ae82ab7f-db07-49ee-9d2b-76075d76f37f

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
buffer_size
65535
build_time
2020-04-24T17:41:53.492468936Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
45400
default_group
Default
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
ae82ab7f-db07-49ee-9d2b-76075d76f37f
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
sysupdate24.ddns.net
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	fca06d8a111b6799913d2487f47cbf45cb5f4f89d78165d8621986c563ea0fad.exe

Executes dropped EXE 2 IoCs

pid	Process
1084	a1punf5t2of.exe
4256	a1punf5t2of.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\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	fca06d8a111b6799913d2487f47cbf45cb5f4f89d78165d8621986c563ea0fad.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	a1punf5t2of.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1084 set thread context of 4256	1084	a1punf5t2of.exe	98

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	fca06d8a111b6799913d2487f47cbf45cb5f4f89d78165d8621986c563ea0fad.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4256	a1punf5t2of.exe
4256	a1punf5t2of.exe
4256	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4256	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4256	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 4516 wrote to memory of 1084	4516	fca06d8a111b6799913d2487f47cbf45cb5f4f89d78165d8621986c563ea0fad.exe	97
PID 4516 wrote to memory of 1084	4516	fca06d8a111b6799913d2487f47cbf45cb5f4f89d78165d8621986c563ea0fad.exe	97
PID 4516 wrote to memory of 1084	4516	fca06d8a111b6799913d2487f47cbf45cb5f4f89d78165d8621986c563ea0fad.exe	97
PID 1084 wrote to memory of 4256	1084	a1punf5t2of.exe	98
PID 1084 wrote to memory of 4256	1084	a1punf5t2of.exe	98
PID 1084 wrote to memory of 4256	1084	a1punf5t2of.exe	98
PID 1084 wrote to memory of 4256	1084	a1punf5t2of.exe	98
PID 1084 wrote to memory of 4256	1084	a1punf5t2of.exe	98
PID 1084 wrote to memory of 4256	1084	a1punf5t2of.exe	98
PID 1084 wrote to memory of 4256	1084	a1punf5t2of.exe	98
PID 1084 wrote to memory of 4256	1084	a1punf5t2of.exe	98

C:\Users\Admin\AppData\Local\Temp\fca06d8a111b6799913d2487f47cbf45cb5f4f89d78165d8621986c563ea0fad.exe
"C:\Users\Admin\AppData\Local\Temp\fca06d8a111b6799913d2487f47cbf45cb5f4f89d78165d8621986c563ea0fad.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4516
- C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
  "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1084
- - C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
    "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
    3⤵
    - Executes dropped EXE
    - Checks whether UAC is enabled
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    PID:4256

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=4344,i,11391966286255097843,10588851088187498028,262144 --variations-seed-version --mojo-platform-channel-handle=3904 /prefetch:8
1⤵
PID:2284

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

Filesize
282KB

MD5
cca223c0638a39de4edff83b3113688c

SHA1
c6a12fae44ad81fe9133a4e5364f04c533841261

SHA256
5fa93e50eb0b398bd1829c6b61854d1d66e827107fc015d4115065d9f984f5f4

SHA512
822e3a0a91817a5801df7e9a1184bcfa5d96c2edaef7ff67aebd193165bf7b7010d45e2eecba5cd5fdf8d4ab056eb348088c8e19303da411b32c5e1fedf7cf3c

Download Submit
memory/1084-38-0x0000000075370000-0x0000000075921000-memory.dmp

Filesize
5.7MB

Download
memory/1084-27-0x0000000075370000-0x0000000075921000-memory.dmp

Filesize
5.7MB

Download
memory/1084-26-0x0000000075370000-0x0000000075921000-memory.dmp

Filesize
5.7MB

Download
memory/1084-25-0x0000000075370000-0x0000000075921000-memory.dmp

Filesize
5.7MB

Download
memory/1084-24-0x0000000075370000-0x0000000075921000-memory.dmp

Filesize
5.7MB

Download
memory/1084-23-0x0000000075370000-0x0000000075921000-memory.dmp

Filesize
5.7MB

Download
memory/1084-22-0x0000000075370000-0x0000000075921000-memory.dmp

Filesize
5.7MB

Download
memory/4256-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4256-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4256-39-0x0000000075370000-0x0000000075921000-memory.dmp

Filesize
5.7MB

Download
memory/4256-36-0x0000000075370000-0x0000000075921000-memory.dmp

Filesize
5.7MB

Download
memory/4256-35-0x0000000075370000-0x0000000075921000-memory.dmp

Filesize
5.7MB

Download
memory/4256-33-0x0000000075370000-0x0000000075921000-memory.dmp

Filesize
5.7MB

Download
memory/4256-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4516-2-0x0000000075370000-0x0000000075921000-memory.dmp

Filesize
5.7MB

Download
memory/4516-21-0x0000000075370000-0x0000000075921000-memory.dmp

Filesize
5.7MB

Download
memory/4516-3-0x0000000075370000-0x0000000075921000-memory.dmp

Filesize
5.7MB

Download
memory/4516-0-0x0000000075372000-0x0000000075373000-memory.dmp

Filesize
4KB

Download
memory/4516-4-0x0000000075372000-0x0000000075373000-memory.dmp

Filesize
4KB

Download
memory/4516-5-0x0000000075370000-0x0000000075921000-memory.dmp

Filesize
5.7MB

Download
memory/4516-6-0x0000000075370000-0x0000000075921000-memory.dmp

Filesize
5.7MB

Download
memory/4516-1-0x0000000075370000-0x0000000075921000-memory.dmp

Filesize
5.7MB

Download
memory/4516-7-0x0000000075370000-0x0000000075921000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads