nanocore | 809e534d052cf7fef7f16c1032b3bea866a2ce7dce89cb55a5c143456b31419d

General

Target

809e534d052cf7fef7f16c1032b3bea866a2ce7dce89cb55a5c143456b31419d.exe
Size

254KB
MD5

af840bf7087a2aaa451b68c10ee560e1
SHA1

74ef15993bda96caddc3ea429618b14b54bbc389
SHA256

809e534d052cf7fef7f16c1032b3bea866a2ce7dce89cb55a5c143456b31419d
SHA512

c9b8a183e8e1f8f796dd159c565df4405f5c8eb5f4ed0eb7dfd635bae2303d9ba3c95cdcd1ecfe286a748b316d342aff120364836067586be179512cfcbfd2aa
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQq3:EeGUA5YZazpXUmZhJ3

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
2796	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
2204	809e534d052cf7fef7f16c1032b3bea866a2ce7dce89cb55a5c143456b31419d.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"	809e534d052cf7fef7f16c1032b3bea866a2ce7dce89cb55a5c143456b31419d.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 2796	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	809e534d052cf7fef7f16c1032b3bea866a2ce7dce89cb55a5c143456b31419d.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
2796	a1punf5t2of.exe
2796	a1punf5t2of.exe
2796	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2796	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2796	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2204 wrote to memory of 2688	2204	809e534d052cf7fef7f16c1032b3bea866a2ce7dce89cb55a5c143456b31419d.exe	30
PID 2204 wrote to memory of 2688	2204	809e534d052cf7fef7f16c1032b3bea866a2ce7dce89cb55a5c143456b31419d.exe	30
PID 2204 wrote to memory of 2688	2204	809e534d052cf7fef7f16c1032b3bea866a2ce7dce89cb55a5c143456b31419d.exe	30
PID 2204 wrote to memory of 2688	2204	809e534d052cf7fef7f16c1032b3bea866a2ce7dce89cb55a5c143456b31419d.exe	30
PID 2204 wrote to memory of 2688	2204	809e534d052cf7fef7f16c1032b3bea866a2ce7dce89cb55a5c143456b31419d.exe	30
PID 2204 wrote to memory of 2688	2204	809e534d052cf7fef7f16c1032b3bea866a2ce7dce89cb55a5c143456b31419d.exe	30
PID 2204 wrote to memory of 2688	2204	809e534d052cf7fef7f16c1032b3bea866a2ce7dce89cb55a5c143456b31419d.exe	30
PID 2688 wrote to memory of 2796	2688	a1punf5t2of.exe	32
PID 2688 wrote to memory of 2796	2688	a1punf5t2of.exe	32
PID 2688 wrote to memory of 2796	2688	a1punf5t2of.exe	32
PID 2688 wrote to memory of 2796	2688	a1punf5t2of.exe	32
PID 2688 wrote to memory of 2796	2688	a1punf5t2of.exe	32
PID 2688 wrote to memory of 2796	2688	a1punf5t2of.exe	32
PID 2688 wrote to memory of 2796	2688	a1punf5t2of.exe	32
PID 2688 wrote to memory of 2796	2688	a1punf5t2of.exe	32
PID 2688 wrote to memory of 2796	2688	a1punf5t2of.exe	32
PID 2688 wrote to memory of 2796	2688	a1punf5t2of.exe	32
PID 2688 wrote to memory of 2796	2688	a1punf5t2of.exe	32
PID 2688 wrote to memory of 2796	2688	a1punf5t2of.exe	32

C:\Users\Admin\AppData\Local\Temp\809e534d052cf7fef7f16c1032b3bea866a2ce7dce89cb55a5c143456b31419d.exe
"C:\Users\Admin\AppData\Local\Temp\809e534d052cf7fef7f16c1032b3bea866a2ce7dce89cb55a5c143456b31419d.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2204
- 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:2796

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
254KB

MD5
661cefb0f9c01cfff2c5d9ec80a57359

SHA1
4d8b8bde197fac757422f21b7272c7cf87f4b875

SHA256
9c08f0d7f26b4176f65d824f7b0ae2f1afc9cf63a3025ea48c7e704f0cc2b653

SHA512
fb6766f30d991289a0d45d08fae5a53ac2e05604208ee58274eb3785a7bc801c960800158a2d8a08cce14a614e8efa0b3d975f1384dd34a2b99c5be6c9739b46

Download Submit
memory/2204-14-0x0000000074480000-0x0000000074A2B000-memory.dmp

Filesize
5.7MB

Download
memory/2204-1-0x0000000074480000-0x0000000074A2B000-memory.dmp

Filesize
5.7MB

Download
memory/2204-2-0x0000000074480000-0x0000000074A2B000-memory.dmp

Filesize
5.7MB

Download
memory/2204-3-0x0000000074480000-0x0000000074A2B000-memory.dmp

Filesize
5.7MB

Download
memory/2204-4-0x0000000074480000-0x0000000074A2B000-memory.dmp

Filesize
5.7MB

Download
memory/2204-5-0x0000000074480000-0x0000000074A2B000-memory.dmp

Filesize
5.7MB

Download
memory/2204-0-0x0000000074481000-0x0000000074482000-memory.dmp

Filesize
4KB

Download
memory/2688-17-0x0000000074480000-0x0000000074A2B000-memory.dmp

Filesize
5.7MB

Download
memory/2688-16-0x0000000074480000-0x0000000074A2B000-memory.dmp

Filesize
5.7MB

Download
memory/2688-15-0x0000000074480000-0x0000000074A2B000-memory.dmp

Filesize
5.7MB

Download
memory/2688-18-0x0000000074480000-0x0000000074A2B000-memory.dmp

Filesize
5.7MB

Download
memory/2688-19-0x0000000074480000-0x0000000074A2B000-memory.dmp

Filesize
5.7MB

Download
memory/2688-41-0x0000000074480000-0x0000000074A2B000-memory.dmp

Filesize
5.7MB

Download
memory/2796-37-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2796-39-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2796-32-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2796-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2796-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2796-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2796-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2796-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads