nanocore | fcfe240e19c1a0fb6ec1af532cb2cd2bb8946c22c8bc76f965f84ab70caa7c4f

General

Target

fcfe240e19c1a0fb6ec1af532cb2cd2bb8946c22c8bc76f965f84ab70caa7c4f.exe
Size

255KB
MD5

dd9531041b5b8e3fbb63619d85a6ffd4
SHA1

cd584aca434d3128f3920f12fe84bee4b8747ac9
SHA256

fcfe240e19c1a0fb6ec1af532cb2cd2bb8946c22c8bc76f965f84ab70caa7c4f
SHA512

f6aa228cea97233435dca5f054739b3fb6302ac25e15093cc7aaf4ec954e8a961a3408907d94ac882d0fc1b127da1cb0ee63108d09585dbd355dd505e323d31d
SSDEEP

6144:85p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ4w:EeGUA5YZazpXUmZhPw

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
2816	a1punf5t2of.exe
2972	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
2028	fcfe240e19c1a0fb6ec1af532cb2cd2bb8946c22c8bc76f965f84ab70caa7c4f.exe
2816	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"	fcfe240e19c1a0fb6ec1af532cb2cd2bb8946c22c8bc76f965f84ab70caa7c4f.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 2816 set thread context of 2972	2816	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	a1punf5t2of.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fcfe240e19c1a0fb6ec1af532cb2cd2bb8946c22c8bc76f965f84ab70caa7c4f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a1punf5t2of.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2972	a1punf5t2of.exe
2972	a1punf5t2of.exe
2972	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2972	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2972	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2028 wrote to memory of 2816	2028	fcfe240e19c1a0fb6ec1af532cb2cd2bb8946c22c8bc76f965f84ab70caa7c4f.exe	31
PID 2028 wrote to memory of 2816	2028	fcfe240e19c1a0fb6ec1af532cb2cd2bb8946c22c8bc76f965f84ab70caa7c4f.exe	31
PID 2028 wrote to memory of 2816	2028	fcfe240e19c1a0fb6ec1af532cb2cd2bb8946c22c8bc76f965f84ab70caa7c4f.exe	31
PID 2028 wrote to memory of 2816	2028	fcfe240e19c1a0fb6ec1af532cb2cd2bb8946c22c8bc76f965f84ab70caa7c4f.exe	31
PID 2028 wrote to memory of 2816	2028	fcfe240e19c1a0fb6ec1af532cb2cd2bb8946c22c8bc76f965f84ab70caa7c4f.exe	31
PID 2028 wrote to memory of 2816	2028	fcfe240e19c1a0fb6ec1af532cb2cd2bb8946c22c8bc76f965f84ab70caa7c4f.exe	31
PID 2028 wrote to memory of 2816	2028	fcfe240e19c1a0fb6ec1af532cb2cd2bb8946c22c8bc76f965f84ab70caa7c4f.exe	31
PID 2816 wrote to memory of 2972	2816	a1punf5t2of.exe	32
PID 2816 wrote to memory of 2972	2816	a1punf5t2of.exe	32
PID 2816 wrote to memory of 2972	2816	a1punf5t2of.exe	32
PID 2816 wrote to memory of 2972	2816	a1punf5t2of.exe	32
PID 2816 wrote to memory of 2972	2816	a1punf5t2of.exe	32
PID 2816 wrote to memory of 2972	2816	a1punf5t2of.exe	32
PID 2816 wrote to memory of 2972	2816	a1punf5t2of.exe	32
PID 2816 wrote to memory of 2972	2816	a1punf5t2of.exe	32
PID 2816 wrote to memory of 2972	2816	a1punf5t2of.exe	32
PID 2816 wrote to memory of 2972	2816	a1punf5t2of.exe	32
PID 2816 wrote to memory of 2972	2816	a1punf5t2of.exe	32
PID 2816 wrote to memory of 2972	2816	a1punf5t2of.exe	32

C:\Users\Admin\AppData\Local\Temp\fcfe240e19c1a0fb6ec1af532cb2cd2bb8946c22c8bc76f965f84ab70caa7c4f.exe
"C:\Users\Admin\AppData\Local\Temp\fcfe240e19c1a0fb6ec1af532cb2cd2bb8946c22c8bc76f965f84ab70caa7c4f.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2028
- 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:2816
- - 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:2972

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
256KB

MD5
8f2801c9392d204f87c49f75c57b2107

SHA1
203a2d807cc8cb23824ae048ce87dd73a339ef35

SHA256
3a1ee30ab61d66fd2c2ea0e7b132295a72883786119add25bbcc513b8422bae0

SHA512
f27577726b5f22383dfe1bcd93fe57d9309174460ac561f7d0fbdb09e6a6f3dff7d627f88790bbe8e6d01ebbe507b47463a2ef0733d85801eb9cd086d2fd723b

Download Submit
memory/2028-16-0x0000000074EC0000-0x000000007546B000-memory.dmp

Filesize
5.7MB

Download
memory/2028-1-0x0000000074EC0000-0x000000007546B000-memory.dmp

Filesize
5.7MB

Download
memory/2028-2-0x0000000074EC0000-0x000000007546B000-memory.dmp

Filesize
5.7MB

Download
memory/2028-3-0x0000000074EC0000-0x000000007546B000-memory.dmp

Filesize
5.7MB

Download
memory/2028-4-0x0000000074EC0000-0x000000007546B000-memory.dmp

Filesize
5.7MB

Download
memory/2028-5-0x0000000074EC0000-0x000000007546B000-memory.dmp

Filesize
5.7MB

Download
memory/2028-6-0x0000000074EC0000-0x000000007546B000-memory.dmp

Filesize
5.7MB

Download
memory/2028-0-0x0000000074EC1000-0x0000000074EC2000-memory.dmp

Filesize
4KB

Download
memory/2816-19-0x0000000074EC0000-0x000000007546B000-memory.dmp

Filesize
5.7MB

Download
memory/2816-15-0x0000000074EC0000-0x000000007546B000-memory.dmp

Filesize
5.7MB

Download
memory/2816-18-0x0000000074EC0000-0x000000007546B000-memory.dmp

Filesize
5.7MB

Download
memory/2816-17-0x0000000074EC0000-0x000000007546B000-memory.dmp

Filesize
5.7MB

Download
memory/2816-20-0x0000000074EC0000-0x000000007546B000-memory.dmp

Filesize
5.7MB

Download
memory/2816-21-0x0000000074EC0000-0x000000007546B000-memory.dmp

Filesize
5.7MB

Download
memory/2816-41-0x0000000074EC0000-0x000000007546B000-memory.dmp

Filesize
5.7MB

Download
memory/2972-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2972-39-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2972-38-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2972-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2972-32-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2972-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2972-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2972-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads