nanocore | 6c8323c44607affbe1867da922596d8de8a603d84e2246480f723f5de281571e

General

Target

6c8323c44607affbe1867da922596d8de8a603d84e2246480f723f5de281571eN.exe
Size

279KB
MD5

f4d274498be04ebbd302308d76f046f0
SHA1

d2e92b471f96b5a613d392f2003766696d444786
SHA256

6c8323c44607affbe1867da922596d8de8a603d84e2246480f723f5de281571e
SHA512

9883bd28d4c6b45718b1a92a6f469ef09c0f0bfd7e5f378681fb01b664771a7b3f43173766edc08ea02c2ace877a63865a56c11caa3666c5c407db1b77acce38
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fD:boSeGUA5YZazpXUmZhZ67

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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	6c8323c44607affbe1867da922596d8de8a603d84e2246480f723f5de281571eN.exe

Executes dropped EXE 2 IoCs

pid	Process
3952	a1punf5t2of.exe
5100	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-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	6c8323c44607affbe1867da922596d8de8a603d84e2246480f723f5de281571eN.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 3952 set thread context of 5100	3952	a1punf5t2of.exe	96

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	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6c8323c44607affbe1867da922596d8de8a603d84e2246480f723f5de281571eN.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
5100	a1punf5t2of.exe
5100	a1punf5t2of.exe
5100	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
5100	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	5100	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 336 wrote to memory of 3952	336	6c8323c44607affbe1867da922596d8de8a603d84e2246480f723f5de281571eN.exe	95
PID 336 wrote to memory of 3952	336	6c8323c44607affbe1867da922596d8de8a603d84e2246480f723f5de281571eN.exe	95
PID 336 wrote to memory of 3952	336	6c8323c44607affbe1867da922596d8de8a603d84e2246480f723f5de281571eN.exe	95
PID 3952 wrote to memory of 5100	3952	a1punf5t2of.exe	96
PID 3952 wrote to memory of 5100	3952	a1punf5t2of.exe	96
PID 3952 wrote to memory of 5100	3952	a1punf5t2of.exe	96
PID 3952 wrote to memory of 5100	3952	a1punf5t2of.exe	96
PID 3952 wrote to memory of 5100	3952	a1punf5t2of.exe	96
PID 3952 wrote to memory of 5100	3952	a1punf5t2of.exe	96
PID 3952 wrote to memory of 5100	3952	a1punf5t2of.exe	96
PID 3952 wrote to memory of 5100	3952	a1punf5t2of.exe	96

C:\Users\Admin\AppData\Local\Temp\6c8323c44607affbe1867da922596d8de8a603d84e2246480f723f5de281571eN.exe
"C:\Users\Admin\AppData\Local\Temp\6c8323c44607affbe1867da922596d8de8a603d84e2246480f723f5de281571eN.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:336
- 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:3952
- - 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:5100

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
279KB

MD5
46506ece49ddc1f3a460ac9ce23305c6

SHA1
e6d7c12061c3132e5c8d7f9b5cc3e8ec7537b397

SHA256
c345149de929c557dd648e596fe8a3ee2d726cec7db84226fd50ec359a93f826

SHA512
ab007f10e65ab63f39022bc6b65a8d941f60770e911ccec2ac465c32df1d902cb03a804f6581d45861db569a3af57fb422266937ea2500d65c1200d7ff926630

Download Submit
memory/336-0-0x00000000754A2000-0x00000000754A3000-memory.dmp

Filesize
4KB

Download
memory/336-1-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/336-2-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/336-3-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/336-4-0x00000000754A2000-0x00000000754A3000-memory.dmp

Filesize
4KB

Download
memory/336-5-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/336-6-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/336-7-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/336-21-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/3952-24-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/3952-23-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/3952-22-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/3952-25-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/3952-26-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/3952-27-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/3952-39-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/5100-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/5100-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/5100-34-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/5100-33-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/5100-36-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/5100-37-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download
memory/5100-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/5100-40-0x00000000754A0000-0x0000000075A51000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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