nanocore | fca06d8a111b6799913d2487f47cbf45cb5f4f89d78165d8621986c563ea0fad

General

Target

fca06d8a111b6799913d2487f47cbf45cb5f4f89d78165d8621986c563ea0fad.exe
Size

282KB
MD5

52d0c236a13464ea6f28e0bf9989a159
SHA1

8c3d0ce7e30c8f85521e2ede54150ff06e3e84ae
SHA256

fca06d8a111b6799913d2487f47cbf45cb5f4f89d78165d8621986c563ea0fad
SHA512

3a395f6e738b1fa7348db8e4d375adf242454602f59250fda3f19440647561283f97ece1d9b6cb38398f9b184e7700cb8ef19d7ea39ac2f75f4ad474a132cbc5
SSDEEP

6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkf1Q:boSeGUA5YZazpXUmZhZ6S3

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

Executes dropped EXE 2 IoCs

pid	Process
2712	a1punf5t2of.exe
3012	a1punf5t2of.exe

Loads dropped DLL 2 IoCs

pid	Process
2228	fca06d8a111b6799913d2487f47cbf45cb5f4f89d78165d8621986c563ea0fad.exe
2712	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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\b1b2dqljdx3 = "C:\\Users\\Admin\\AppData\\Roaming\\b1b2dqljdx3\\a1punf5t2of.exe"	fca06d8a111b6799913d2487f47cbf45cb5f4f89d78165d8621986c563ea0fad.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 2712 set thread context of 3012	2712	a1punf5t2of.exe	31

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	fca06d8a111b6799913d2487f47cbf45cb5f4f89d78165d8621986c563ea0fad.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3012	a1punf5t2of.exe
3012	a1punf5t2of.exe
3012	a1punf5t2of.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3012	a1punf5t2of.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3012	a1punf5t2of.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2228 wrote to memory of 2712	2228	fca06d8a111b6799913d2487f47cbf45cb5f4f89d78165d8621986c563ea0fad.exe	30
PID 2228 wrote to memory of 2712	2228	fca06d8a111b6799913d2487f47cbf45cb5f4f89d78165d8621986c563ea0fad.exe	30
PID 2228 wrote to memory of 2712	2228	fca06d8a111b6799913d2487f47cbf45cb5f4f89d78165d8621986c563ea0fad.exe	30
PID 2228 wrote to memory of 2712	2228	fca06d8a111b6799913d2487f47cbf45cb5f4f89d78165d8621986c563ea0fad.exe	30
PID 2228 wrote to memory of 2712	2228	fca06d8a111b6799913d2487f47cbf45cb5f4f89d78165d8621986c563ea0fad.exe	30
PID 2228 wrote to memory of 2712	2228	fca06d8a111b6799913d2487f47cbf45cb5f4f89d78165d8621986c563ea0fad.exe	30
PID 2228 wrote to memory of 2712	2228	fca06d8a111b6799913d2487f47cbf45cb5f4f89d78165d8621986c563ea0fad.exe	30
PID 2712 wrote to memory of 3012	2712	a1punf5t2of.exe	31
PID 2712 wrote to memory of 3012	2712	a1punf5t2of.exe	31
PID 2712 wrote to memory of 3012	2712	a1punf5t2of.exe	31
PID 2712 wrote to memory of 3012	2712	a1punf5t2of.exe	31
PID 2712 wrote to memory of 3012	2712	a1punf5t2of.exe	31
PID 2712 wrote to memory of 3012	2712	a1punf5t2of.exe	31
PID 2712 wrote to memory of 3012	2712	a1punf5t2of.exe	31
PID 2712 wrote to memory of 3012	2712	a1punf5t2of.exe	31
PID 2712 wrote to memory of 3012	2712	a1punf5t2of.exe	31
PID 2712 wrote to memory of 3012	2712	a1punf5t2of.exe	31
PID 2712 wrote to memory of 3012	2712	a1punf5t2of.exe	31
PID 2712 wrote to memory of 3012	2712	a1punf5t2of.exe	31

C:\Users\Admin\AppData\Local\Temp\fca06d8a111b6799913d2487f47cbf45cb5f4f89d78165d8621986c563ea0fad.exe
"C:\Users\Admin\AppData\Local\Temp\fca06d8a111b6799913d2487f47cbf45cb5f4f89d78165d8621986c563ea0fad.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2228
- 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:2712
- - 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:3012

Network

DNS

sysupdate24.ddns.net

a1punf5t2of.exe

Remote address:

8.8.8.8:53

Request

sysupdate24.ddns.net

IN A

Response

sysupdate24.ddns.net

IN A

0.0.0.0

No results found

8.8.8.8:53

sysupdate24.ddns.net

dns

a1punf5t2of.exe

66 B
82 B
1
1

DNS Request

sysupdate24.ddns.net

DNS Response

0.0.0.0

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
282KB

MD5
3b78529d4fce1ff8acb002c1a18fcda4

SHA1
9044c7e2aee4f5b70a387389b4a7cad983d6b385

SHA256
55667f6ea0e0ec002ded4ba9e2b3c85dd75629c65656bc38d4f36224cfccdf2d

SHA512
da4e39db6410636eef9ca083f4c3be5a753e562b82d629fcaac4d9133b2bed7b3ff919f0e41f6751d817cf67a2d4b75d49136835d801c3fd57b58437ea4edcb0

Download Submit
memory/2228-0-0x0000000074F51000-0x0000000074F52000-memory.dmp

Filesize
4KB

Download
memory/2228-1-0x0000000074F50000-0x00000000754FB000-memory.dmp

Filesize
5.7MB

Download
memory/2228-2-0x0000000074F50000-0x00000000754FB000-memory.dmp

Filesize
5.7MB

Download
memory/2228-3-0x0000000074F50000-0x00000000754FB000-memory.dmp

Filesize
5.7MB

Download
memory/2228-4-0x0000000074F50000-0x00000000754FB000-memory.dmp

Filesize
5.7MB

Download
memory/2228-5-0x0000000074F50000-0x00000000754FB000-memory.dmp

Filesize
5.7MB

Download
memory/2228-14-0x0000000074F50000-0x00000000754FB000-memory.dmp

Filesize
5.7MB

Download
memory/2712-15-0x0000000074F50000-0x00000000754FB000-memory.dmp

Filesize
5.7MB

Download
memory/2712-16-0x0000000074F50000-0x00000000754FB000-memory.dmp

Filesize
5.7MB

Download
memory/2712-17-0x0000000074F50000-0x00000000754FB000-memory.dmp

Filesize
5.7MB

Download
memory/2712-18-0x0000000074F50000-0x00000000754FB000-memory.dmp

Filesize
5.7MB

Download
memory/2712-19-0x0000000074F50000-0x00000000754FB000-memory.dmp

Filesize
5.7MB

Download
memory/2712-20-0x0000000074F50000-0x00000000754FB000-memory.dmp

Filesize
5.7MB

Download
memory/2712-37-0x0000000074F50000-0x00000000754FB000-memory.dmp

Filesize
5.7MB

Download
memory/3012-35-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3012-34-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3012-29-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/3012-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3012-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3012-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3012-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3012-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

DNS Request

DNS Response

MITRE ATT&CK Enterprise v15

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