nanocore | 7a698045d9ef597fb483ef9f7b342a2cf0e1b5b7347b6794484052a8f6dc3aeb

General

Target

7a698045d9ef597fb483ef9f7b342a2cf0e1b5b7347b6794484052a8f6dc3aeb.exe
Size

254KB
MD5

ed4ca65326660451628eac602288dd7d
SHA1

5f811f7e2cbc6793312e9ea355fb1e6723abafd9
SHA256

7a698045d9ef597fb483ef9f7b342a2cf0e1b5b7347b6794484052a8f6dc3aeb
SHA512

01c54285ffcd363bb7d774d4e74d74dfdb3096b56642b0d8e789c9539e33594bbd3900f1d18008301cdd24642ccd618d5d952d5c3e3a61713867dfa913e0dce7
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQNW:EeGUA5YZazpXUmZhqW

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
Nanocore family
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-1-5-21-1045960512-3948844814-3059691613-1000\Control Panel\International\Geo\Nation	7a698045d9ef597fb483ef9f7b342a2cf0e1b5b7347b6794484052a8f6dc3aeb.exe

Executes dropped EXE 2 IoCs

pid	Process
968	a1punf5t2of.exe
312	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-1-5-21-1045960512-3948844814-3059691613-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	7a698045d9ef597fb483ef9f7b342a2cf0e1b5b7347b6794484052a8f6dc3aeb.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 968 set thread context of 312	968	a1punf5t2of.exe	101

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	7a698045d9ef597fb483ef9f7b342a2cf0e1b5b7347b6794484052a8f6dc3aeb.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
312	a1punf5t2of.exe
312	a1punf5t2of.exe
312	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
312	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	312	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2260 wrote to memory of 968	2260	7a698045d9ef597fb483ef9f7b342a2cf0e1b5b7347b6794484052a8f6dc3aeb.exe	100
PID 2260 wrote to memory of 968	2260	7a698045d9ef597fb483ef9f7b342a2cf0e1b5b7347b6794484052a8f6dc3aeb.exe	100
PID 2260 wrote to memory of 968	2260	7a698045d9ef597fb483ef9f7b342a2cf0e1b5b7347b6794484052a8f6dc3aeb.exe	100
PID 968 wrote to memory of 312	968	a1punf5t2of.exe	101
PID 968 wrote to memory of 312	968	a1punf5t2of.exe	101
PID 968 wrote to memory of 312	968	a1punf5t2of.exe	101
PID 968 wrote to memory of 312	968	a1punf5t2of.exe	101
PID 968 wrote to memory of 312	968	a1punf5t2of.exe	101
PID 968 wrote to memory of 312	968	a1punf5t2of.exe	101
PID 968 wrote to memory of 312	968	a1punf5t2of.exe	101
PID 968 wrote to memory of 312	968	a1punf5t2of.exe	101

C:\Users\Admin\AppData\Local\Temp\7a698045d9ef597fb483ef9f7b342a2cf0e1b5b7347b6794484052a8f6dc3aeb.exe
"C:\Users\Admin\AppData\Local\Temp\7a698045d9ef597fb483ef9f7b342a2cf0e1b5b7347b6794484052a8f6dc3aeb.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2260
- 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:968
- - 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:312

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\b1b2dqljdx3\a1punf5t2of.exe

Filesize
254KB

MD5
e501141c4be1ac49c197642cb0547b23

SHA1
2b26939f5c6689cc2e83963f560080f4ff4c2acb

SHA256
a93da9c51143c256127d8ef08343db2919d2f9f339249e197b99b90415795ccc

SHA512
bcd81e54e9ae5142d8c1cc6e604ea757ce4d7e80f91a6d9775f5a38805dc8768f63db1de99e8e3acf955b5c42929daecfa68e85677aa75421eabd5652002ccf3

Download Submit
memory/312-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/312-43-0x00000000748E0000-0x0000000074E91000-memory.dmp

Filesize
5.7MB

Download
memory/312-40-0x00000000748E0000-0x0000000074E91000-memory.dmp

Filesize
5.7MB

Download
memory/312-39-0x00000000748E0000-0x0000000074E91000-memory.dmp

Filesize
5.7MB

Download
memory/312-38-0x00000000748E0000-0x0000000074E91000-memory.dmp

Filesize
5.7MB

Download
memory/312-37-0x00000000748E0000-0x0000000074E91000-memory.dmp

Filesize
5.7MB

Download
memory/312-33-0x00000000748E0000-0x0000000074E91000-memory.dmp

Filesize
5.7MB

Download
memory/312-34-0x00000000748E0000-0x0000000074E91000-memory.dmp

Filesize
5.7MB

Download
memory/312-35-0x00000000748E0000-0x0000000074E91000-memory.dmp

Filesize
5.7MB

Download
memory/312-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/312-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/968-26-0x00000000748E0000-0x0000000074E91000-memory.dmp

Filesize
5.7MB

Download
memory/968-25-0x00000000748E0000-0x0000000074E91000-memory.dmp

Filesize
5.7MB

Download
memory/968-42-0x00000000748E0000-0x0000000074E91000-memory.dmp

Filesize
5.7MB

Download
memory/968-27-0x00000000748E0000-0x0000000074E91000-memory.dmp

Filesize
5.7MB

Download
memory/968-24-0x00000000748E0000-0x0000000074E91000-memory.dmp

Filesize
5.7MB

Download
memory/968-23-0x00000000748E0000-0x0000000074E91000-memory.dmp

Filesize
5.7MB

Download
memory/968-21-0x00000000748E0000-0x0000000074E91000-memory.dmp

Filesize
5.7MB

Download
memory/2260-22-0x00000000748E0000-0x0000000074E91000-memory.dmp

Filesize
5.7MB

Download
memory/2260-7-0x00000000748E0000-0x0000000074E91000-memory.dmp

Filesize
5.7MB

Download
memory/2260-6-0x00000000748E0000-0x0000000074E91000-memory.dmp

Filesize
5.7MB

Download
memory/2260-5-0x00000000748E0000-0x0000000074E91000-memory.dmp

Filesize
5.7MB

Download
memory/2260-4-0x00000000748E2000-0x00000000748E3000-memory.dmp

Filesize
4KB

Download
memory/2260-3-0x00000000748E0000-0x0000000074E91000-memory.dmp

Filesize
5.7MB

Download
memory/2260-2-0x00000000748E0000-0x0000000074E91000-memory.dmp

Filesize
5.7MB

Download
memory/2260-0-0x00000000748E2000-0x00000000748E3000-memory.dmp

Filesize
4KB

Download
memory/2260-1-0x00000000748E0000-0x0000000074E91000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads