nanocore | f187765d048a5c16672a99076106baa2715fd8c91e10665844676e4b892a5aef

General

Target

f187765d048a5c16672a99076106baa2715fd8c91e10665844676e4b892a5aefN.exe
Size

255KB
MD5

24d3bef5b8cf99bf3edb972ee073fe40
SHA1

ea0433081c59778eb63ab56250bdcd2f74b8c4c0
SHA256

f187765d048a5c16672a99076106baa2715fd8c91e10665844676e4b892a5aef
SHA512

559fa7c3d1a2a00507e0e1076b7e38bbcebfb719efcfbb40dd0c2efd5b3666f1037a6d4bdee74ed4d4ab478900e1c3ccec96059d70188de354266c9c1464b58f
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQqm:EeGUA5YZazpXUmZhJm

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
1516	a1punf5t2of.exe
2812	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
2600	f187765d048a5c16672a99076106baa2715fd8c91e10665844676e4b892a5aefN.exe
1516	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-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	f187765d048a5c16672a99076106baa2715fd8c91e10665844676e4b892a5aefN.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 1516 set thread context of 2812	1516	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	f187765d048a5c16672a99076106baa2715fd8c91e10665844676e4b892a5aefN.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
2812	a1punf5t2of.exe
2812	a1punf5t2of.exe
2812	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2812	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2812	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2600 wrote to memory of 1516	2600	f187765d048a5c16672a99076106baa2715fd8c91e10665844676e4b892a5aefN.exe	31
PID 2600 wrote to memory of 1516	2600	f187765d048a5c16672a99076106baa2715fd8c91e10665844676e4b892a5aefN.exe	31
PID 2600 wrote to memory of 1516	2600	f187765d048a5c16672a99076106baa2715fd8c91e10665844676e4b892a5aefN.exe	31
PID 2600 wrote to memory of 1516	2600	f187765d048a5c16672a99076106baa2715fd8c91e10665844676e4b892a5aefN.exe	31
PID 2600 wrote to memory of 1516	2600	f187765d048a5c16672a99076106baa2715fd8c91e10665844676e4b892a5aefN.exe	31
PID 2600 wrote to memory of 1516	2600	f187765d048a5c16672a99076106baa2715fd8c91e10665844676e4b892a5aefN.exe	31
PID 2600 wrote to memory of 1516	2600	f187765d048a5c16672a99076106baa2715fd8c91e10665844676e4b892a5aefN.exe	31
PID 1516 wrote to memory of 2812	1516	a1punf5t2of.exe	32
PID 1516 wrote to memory of 2812	1516	a1punf5t2of.exe	32
PID 1516 wrote to memory of 2812	1516	a1punf5t2of.exe	32
PID 1516 wrote to memory of 2812	1516	a1punf5t2of.exe	32
PID 1516 wrote to memory of 2812	1516	a1punf5t2of.exe	32
PID 1516 wrote to memory of 2812	1516	a1punf5t2of.exe	32
PID 1516 wrote to memory of 2812	1516	a1punf5t2of.exe	32
PID 1516 wrote to memory of 2812	1516	a1punf5t2of.exe	32
PID 1516 wrote to memory of 2812	1516	a1punf5t2of.exe	32
PID 1516 wrote to memory of 2812	1516	a1punf5t2of.exe	32
PID 1516 wrote to memory of 2812	1516	a1punf5t2of.exe	32
PID 1516 wrote to memory of 2812	1516	a1punf5t2of.exe	32

C:\Users\Admin\AppData\Local\Temp\f187765d048a5c16672a99076106baa2715fd8c91e10665844676e4b892a5aefN.exe
"C:\Users\Admin\AppData\Local\Temp\f187765d048a5c16672a99076106baa2715fd8c91e10665844676e4b892a5aefN.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2600
- 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:1516
- - 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:2812

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
255KB

MD5
8ade22b647817192fa9251c896ae11bb

SHA1
29ec1edbbf4c5f180d011198836807b26dba5d18

SHA256
1f68f6987f5d26292891527c39defc158488befd87c29619ef7694e3181b4925

SHA512
22eb7a914217f9da60cb9ff9ec3b59c9d009181b2c2b25ce5ccb41c12d9750dbb4c988c3edad2af4aab21aaa7bfb70ff6b311c564e9d2f96d0154c06ddc800f0

Download Submit
memory/1516-17-0x0000000074A00000-0x0000000074FAB000-memory.dmp

Filesize
5.7MB

Download
memory/1516-43-0x0000000074A00000-0x0000000074FAB000-memory.dmp

Filesize
5.7MB

Download
memory/1516-21-0x0000000074A00000-0x0000000074FAB000-memory.dmp

Filesize
5.7MB

Download
memory/1516-20-0x0000000074A00000-0x0000000074FAB000-memory.dmp

Filesize
5.7MB

Download
memory/1516-19-0x0000000074A00000-0x0000000074FAB000-memory.dmp

Filesize
5.7MB

Download
memory/1516-18-0x0000000074A00000-0x0000000074FAB000-memory.dmp

Filesize
5.7MB

Download
memory/1516-15-0x0000000074A00000-0x0000000074FAB000-memory.dmp

Filesize
5.7MB

Download
memory/2600-6-0x0000000074A00000-0x0000000074FAB000-memory.dmp

Filesize
5.7MB

Download
memory/2600-1-0x0000000074A00000-0x0000000074FAB000-memory.dmp

Filesize
5.7MB

Download
memory/2600-0-0x0000000074A01000-0x0000000074A02000-memory.dmp

Filesize
4KB

Download
memory/2600-5-0x0000000074A00000-0x0000000074FAB000-memory.dmp

Filesize
5.7MB

Download
memory/2600-4-0x0000000074A00000-0x0000000074FAB000-memory.dmp

Filesize
5.7MB

Download
memory/2600-3-0x0000000074A00000-0x0000000074FAB000-memory.dmp

Filesize
5.7MB

Download
memory/2600-2-0x0000000074A00000-0x0000000074FAB000-memory.dmp

Filesize
5.7MB

Download
memory/2600-16-0x0000000074A00000-0x0000000074FAB000-memory.dmp

Filesize
5.7MB

Download
memory/2812-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2812-41-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2812-39-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2812-34-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2812-33-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2812-30-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2812-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2812-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads