nanocore | a8232796cd480862dccbb1906ce4e9c6541ea27f0aa1f9a0e632563128dc7684

General

Target

a8232796cd480862dccbb1906ce4e9c6541ea27f0aa1f9a0e632563128dc7684.exe
Size

280KB
MD5

81b40a6f1d521e068267162b4ddf2e0a
SHA1

9671610269df777e2ed847be54748ccc3ba778d1
SHA256

a8232796cd480862dccbb1906ce4e9c6541ea27f0aa1f9a0e632563128dc7684
SHA512

0f2e7501dfad9acab02d467f651fa4739fe85a2d4f3094bfacce35c077b212c9f62e98752bdfbe83b54e87e0335df22b7bd18e6382ef048570807a1a427d0983
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66f3G:boSeGUA5YZazpXUmZhZ6fG

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

Executes dropped EXE 2 IoCs

pid	Process
2688	a1punf5t2of.exe
2600	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
868	a8232796cd480862dccbb1906ce4e9c6541ea27f0aa1f9a0e632563128dc7684.exe
2688	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-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	a8232796cd480862dccbb1906ce4e9c6541ea27f0aa1f9a0e632563128dc7684.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 2688 set thread context of 2600	2688	a1punf5t2of.exe	32

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	a8232796cd480862dccbb1906ce4e9c6541ea27f0aa1f9a0e632563128dc7684.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
2600	a1punf5t2of.exe
2600	a1punf5t2of.exe
2600	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2600	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2600	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 868 wrote to memory of 2688	868	a8232796cd480862dccbb1906ce4e9c6541ea27f0aa1f9a0e632563128dc7684.exe	31
PID 868 wrote to memory of 2688	868	a8232796cd480862dccbb1906ce4e9c6541ea27f0aa1f9a0e632563128dc7684.exe	31
PID 868 wrote to memory of 2688	868	a8232796cd480862dccbb1906ce4e9c6541ea27f0aa1f9a0e632563128dc7684.exe	31
PID 868 wrote to memory of 2688	868	a8232796cd480862dccbb1906ce4e9c6541ea27f0aa1f9a0e632563128dc7684.exe	31
PID 868 wrote to memory of 2688	868	a8232796cd480862dccbb1906ce4e9c6541ea27f0aa1f9a0e632563128dc7684.exe	31
PID 868 wrote to memory of 2688	868	a8232796cd480862dccbb1906ce4e9c6541ea27f0aa1f9a0e632563128dc7684.exe	31
PID 868 wrote to memory of 2688	868	a8232796cd480862dccbb1906ce4e9c6541ea27f0aa1f9a0e632563128dc7684.exe	31
PID 2688 wrote to memory of 2600	2688	a1punf5t2of.exe	32
PID 2688 wrote to memory of 2600	2688	a1punf5t2of.exe	32
PID 2688 wrote to memory of 2600	2688	a1punf5t2of.exe	32
PID 2688 wrote to memory of 2600	2688	a1punf5t2of.exe	32
PID 2688 wrote to memory of 2600	2688	a1punf5t2of.exe	32
PID 2688 wrote to memory of 2600	2688	a1punf5t2of.exe	32
PID 2688 wrote to memory of 2600	2688	a1punf5t2of.exe	32
PID 2688 wrote to memory of 2600	2688	a1punf5t2of.exe	32
PID 2688 wrote to memory of 2600	2688	a1punf5t2of.exe	32
PID 2688 wrote to memory of 2600	2688	a1punf5t2of.exe	32
PID 2688 wrote to memory of 2600	2688	a1punf5t2of.exe	32
PID 2688 wrote to memory of 2600	2688	a1punf5t2of.exe	32

C:\Users\Admin\AppData\Local\Temp\a8232796cd480862dccbb1906ce4e9c6541ea27f0aa1f9a0e632563128dc7684.exe
"C:\Users\Admin\AppData\Local\Temp\a8232796cd480862dccbb1906ce4e9c6541ea27f0aa1f9a0e632563128dc7684.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:868
- C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
  "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2688
- - 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:2600

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\b1b2dqljdx3\a1punf5t2of.exe

Filesize
280KB

MD5
c76b1d03e43ac83bf0189850087fd0e9

SHA1
37d12e0c004347412a3a29b7949d1ab95dd06993

SHA256
a4f4efd584489d9cb769b3014f246fd21b8998e18c771e155836b94ec1a7009b

SHA512
d3f735856fd6163264d5d4fb09f0f6b86d7e47c7f88396fef5a6ccd8f24ab4046deca8c92f8562eb8a88d027673858ff5d36fcfecb292e7fb1d61ccd95c26551

Download Submit
memory/868-0-0x00000000749D1000-0x00000000749D2000-memory.dmp

Filesize
4KB

Download
memory/868-1-0x00000000749D0000-0x0000000074F7B000-memory.dmp

Filesize
5.7MB

Download
memory/868-2-0x00000000749D0000-0x0000000074F7B000-memory.dmp

Filesize
5.7MB

Download
memory/868-3-0x00000000749D0000-0x0000000074F7B000-memory.dmp

Filesize
5.7MB

Download
memory/868-4-0x00000000749D0000-0x0000000074F7B000-memory.dmp

Filesize
5.7MB

Download
memory/868-5-0x00000000749D0000-0x0000000074F7B000-memory.dmp

Filesize
5.7MB

Download
memory/868-6-0x00000000749D0000-0x0000000074F7B000-memory.dmp

Filesize
5.7MB

Download
memory/868-15-0x00000000749D0000-0x0000000074F7B000-memory.dmp

Filesize
5.7MB

Download
memory/2600-36-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2600-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2600-38-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2600-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2600-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2600-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2600-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2600-31-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2688-16-0x00000000749D0000-0x0000000074F7B000-memory.dmp

Filesize
5.7MB

Download
memory/2688-20-0x00000000749D0000-0x0000000074F7B000-memory.dmp

Filesize
5.7MB

Download
memory/2688-18-0x00000000749D0000-0x0000000074F7B000-memory.dmp

Filesize
5.7MB

Download
memory/2688-19-0x00000000749D0000-0x0000000074F7B000-memory.dmp

Filesize
5.7MB

Download
memory/2688-17-0x00000000749D0000-0x0000000074F7B000-memory.dmp

Filesize
5.7MB

Download
memory/2688-40-0x00000000749D0000-0x0000000074F7B000-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