nanocore | 80c22a635c8c465742fe3062fc705710d561ef1decc7094f22adc041bb2f15ed

Resubmissions

24/02/2025, 09:46

250224-lrx88avqy3 10

24/02/2025, 09:44

250224-lqf9bavp16 10

24/02/2025, 09:41

250224-ln87bavpw4 10

24/02/2025, 09:36

250224-lk437avns5 10

Analysis

max time kernel
91s
max time network
210s
platform
windows11-21h2_x64
resource
win11-20250217-en
resource tags

arch:x64arch:x86image:win11-20250217-enlocale:en-usos:windows11-21h2-x64system
submitted
24/02/2025, 09:41

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

PW Loader.exe
Size

354KB
MD5

638ded3b1d340c2a35f1891759e11d3b
SHA1

e290bb38e046a6d2ceef5632f1c1ab1fefde4d93
SHA256

d46c7ba651d37e8e51e062320fa860fc7aa69b5ab142a91d614bf61a64b8f9eb
SHA512

b8e61d0b992e887abc87f20b8ed7bff65801e9b9288a2ed296e4f4e2e3e1f0192c9b74a831a0d59814de222e73e358a14b2ae623ac5dd61d896b0445f7a21ab2
SSDEEP

6144:/0XQ1m1ii5mwp+wR0O+VbL68KadaT6Cwfn/7NIY/Y+nNK2UX+8+Hxr:/0XQ1XQUweNbLBKa8T6CS/JaXJ+Hxr

Score

10^/10

nanocore defense_evasion discovery keylogger persistence spyware stealer trojan

Malware Config

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
2288	PW.exe
1732	Loader.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\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\UDP Subsystem = "C:\\Program Files\\UDP Subsystem\\udpss.exe"	PW.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

defense_evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	PW.exe

Obfuscated Files or Information: Command Obfuscation 1 TTPs
Adversaries may obfuscate content during command execution to impede detection.
defense_evasion

Command Obfuscation
T1027.010

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files\UDP Subsystem\udpss.exe	PW.exe
File created	C:\Program Files\UDP Subsystem\udpss.exe	PW.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\PW.exe	PW Loader.exe

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	PW Loader.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Loader.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
4564	PING.EXE

Delays execution with timeout.exe 6 IoCs

defense_evasion

pid	Process
1220	timeout.exe
2020	timeout.exe
3156	timeout.exe
652	timeout.exe
4540	timeout.exe
908	timeout.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4564	PING.EXE

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
3988	schtasks.exe
3808	schtasks.exe

Suspicious behavior: EnumeratesProcesses 44 IoCs

pid	Process
3408	powershell.exe
3408	powershell.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe
2288	PW.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2288	PW.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3408	powershell.exe
Token: SeDebugPrivilege	2288	PW.exe
Token: SeDebugPrivilege	2288	PW.exe

Suspicious use of WriteProcessMemory 38 IoCs

description	pid	Process	procid_target
PID 2800 wrote to memory of 3408	2800	PW Loader.exe	78
PID 2800 wrote to memory of 3408	2800	PW Loader.exe	78
PID 2800 wrote to memory of 3408	2800	PW Loader.exe	78
PID 2800 wrote to memory of 2288	2800	PW Loader.exe	80
PID 2800 wrote to memory of 2288	2800	PW Loader.exe	80
PID 2800 wrote to memory of 1732	2800	PW Loader.exe	81
PID 2800 wrote to memory of 1732	2800	PW Loader.exe	81
PID 2800 wrote to memory of 1732	2800	PW Loader.exe	81
PID 1732 wrote to memory of 4992	1732	Loader.exe	83
PID 1732 wrote to memory of 4992	1732	Loader.exe	83
PID 4992 wrote to memory of 2348	4992	cmd.exe	84
PID 4992 wrote to memory of 2348	4992	cmd.exe	84
PID 2348 wrote to memory of 3720	2348	cmd.exe	85
PID 2348 wrote to memory of 3720	2348	cmd.exe	85
PID 2348 wrote to memory of 1720	2348	cmd.exe	86
PID 2348 wrote to memory of 1720	2348	cmd.exe	86
PID 4992 wrote to memory of 3088	4992	cmd.exe	87
PID 4992 wrote to memory of 3088	4992	cmd.exe	87
PID 4992 wrote to memory of 2764	4992	cmd.exe	88
PID 4992 wrote to memory of 2764	4992	cmd.exe	88
PID 2288 wrote to memory of 3988	2288	PW.exe	89
PID 2288 wrote to memory of 3988	2288	PW.exe	89
PID 4992 wrote to memory of 1220	4992	cmd.exe	91
PID 4992 wrote to memory of 1220	4992	cmd.exe	91
PID 2288 wrote to memory of 3808	2288	PW.exe	92
PID 2288 wrote to memory of 3808	2288	PW.exe	92
PID 4992 wrote to memory of 2020	4992	cmd.exe	94
PID 4992 wrote to memory of 2020	4992	cmd.exe	94
PID 4992 wrote to memory of 4564	4992	cmd.exe	95
PID 4992 wrote to memory of 4564	4992	cmd.exe	95
PID 4992 wrote to memory of 3156	4992	cmd.exe	96
PID 4992 wrote to memory of 3156	4992	cmd.exe	96
PID 4992 wrote to memory of 652	4992	cmd.exe	97
PID 4992 wrote to memory of 652	4992	cmd.exe	97
PID 4992 wrote to memory of 4540	4992	cmd.exe	98
PID 4992 wrote to memory of 4540	4992	cmd.exe	98
PID 4992 wrote to memory of 908	4992	cmd.exe	99
PID 4992 wrote to memory of 908	4992	cmd.exe	99

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\PW Loader.exe
"C:\Users\Admin\AppData\Local\Temp\PW Loader.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2800
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAGEAegBpACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAHkAbQB0ACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAGcAZwBlACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAG0AegB0ACMAPgA="
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3408
- C:\Windows\PW.exe
  "C:\Windows\PW.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2288
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks.exe" /create /f /tn "UDP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp91EF.tmp"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:3988
- - C:\Windows\SYSTEM32\schtasks.exe
    "schtasks.exe" /create /f /tn "UDP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp929C.tmp"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:3808
- C:\Users\Admin\AppData\Local\Temp\Loader.exe
  "C:\Users\Admin\AppData\Local\Temp\Loader.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1732
- - C:\Windows\system32\cmd.exe
    "C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\8DA9.tmp\8DAA.tmp\8DAB.bat C:\Users\Admin\AppData\Local\Temp\Loader.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4992
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c echo prompt $E | cmd
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2348
    - - C:\Windows\system32\cmd.exe
        
        C:\Windows\system32\cmd.exe /S /D /c" echo prompt $E "
        5⤵
        
        PID:3720
    - - C:\Windows\system32\cmd.exe
        
        cmd
        5⤵
        
        PID:1720
  - - C:\Windows\system32\chcp.com
      chcp 65001
      4⤵
      PID:3088
  - - C:\Windows\system32\mode.com
      mode 76, 30
      4⤵
      PID:2764
  - - C:\Windows\system32\timeout.exe
      timeout /t 1 /nobreak
      4⤵
      Delays execution with timeout.exe
      PID:1220
  - - C:\Windows\system32\timeout.exe
      timeout /t 1 /nobreak
      4⤵
      Delays execution with timeout.exe
      PID:2020
  - - C:\Windows\system32\PING.EXE
      ping /n 1 /w 400 localhost
      4⤵
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:4564
  - - C:\Windows\system32\timeout.exe
      timeout /t 5 /nobreak
      4⤵
      Delays execution with timeout.exe
      PID:3156
  - - C:\Windows\system32\timeout.exe
      timeout /t 1 /nobreak
      4⤵
      Delays execution with timeout.exe
      PID:652
  - - C:\Windows\system32\timeout.exe
      timeout /t 5 /nobreak
      4⤵
      Delays execution with timeout.exe
      PID:4540
  - - C:\Windows\system32\timeout.exe
      timeout /t 1 /nobreak
      4⤵
      Delays execution with timeout.exe
      PID:908

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:2204

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Obfuscated Files or Information

T1027

Command Obfuscation

T1027.010

Credential Access

Discovery

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

System Network Configuration Discovery

T1016

Internet Connection Discovery

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\8DA9.tmp\8DAA.tmp\8DAB.bat

Filesize
873B

MD5
566e6a066b92cfebc3d0335e4040cb4e

SHA1
46d51fafe54222520870b8b0152ec21171c9b74d

SHA256
32ae4d96a660d1a0e4383d7b589a581d0c6cd20727cf918c787fa695f2820a0e

SHA512
c9f8d55845368226163c605c44ce47f92dea81d4d40dfdd317ffb67a0175de1cd9ccd74285fac940974be7bf41642055a79775baae3f766df323c142f8eca556

Download Submit
C:\Users\Admin\AppData\Local\Temp\Loader.exe

Filesize
117KB

MD5
02d696883a7203cc4751705c59bc1e2a

SHA1
2ab1c8e52cee860f41342949d9b7cf8d2f1011d9

SHA256
5ca70c26ef954b416ca7f7419f8291a5db7db3523139126e5a8e07d3a33ca72c

SHA512
0dc4c42e406783946ec279c037c7141839c73cf080e834a12abc3ac4e016af8bc52b712affd539693ddc5f40f3231ac983a9e3c3db5bc4aefadacad2a8efc6bf

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_d0y2bqu4.vvv.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp91EF.tmp

Filesize
1KB

MD5
2ffead7bac45fb92c7e7fdd337c3d07d

SHA1
cf1335a23b061148d12ab7297b09bc9a028a0e3d

SHA256
08f809f86780ba005342a9cbb3ae9a54a3c151a0b494cbcd59fcc53903e705d6

SHA512
0f9d3da64b85770e1e8e383071b42d193cd24e2f4e1693a7f4ce98a1e0c92a175c683f69b9ff727abad6161f5ece39f0ea2caa098e24314256a90864192ac178

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp929C.tmp

Filesize
1KB

MD5
a1acb04d3cfe1a7882c8e748898a0d4d

SHA1
a6b80ebf50bc6d8b35e3f32d075bd56ebd3516c4

SHA256
d6bdd0343bab999e45c920e6e9e78b2f62f9d5dd6b8009512ed1e0a442bbfe8c

SHA512
7b0e371acca63c5bf9f652f0811ed7c4c769952dbdda443c859017da5a81896d33792711c124f4f54486462f9f40e52d096d41c8cf961a3308933f39b80e577c

Download Submit
C:\Windows\PW.exe

Filesize
203KB

MD5
b2f82753cb0f4d065662b530924bb50c

SHA1
631f130194792d63f7fa75451eb3175422d93af8

SHA256
8b4cda9baec878f1dd69acf5e3fe33ef80b4ba84856e6416be9a0f40028329a4

SHA512
1c120dd4ae8aed29692ded0fc7099fff5a26a1a26b7d1ebd00af325e5e9617b933419ecd9407ef5dec35482bc9809df1ace9ed482dc9c260f6a6eb0ff5e46466

Download Submit
memory/2288-91-0x00007FF99E675000-0x00007FF99E676000-memory.dmp

Filesize
4KB

Download
memory/2288-83-0x000000001C2C0000-0x000000001C2CE000-memory.dmp

Filesize
56KB

Download
memory/2288-21-0x000000001B8F0000-0x000000001BDBE000-memory.dmp

Filesize
4.8MB

Download
memory/2288-90-0x000000001DB90000-0x000000001DBF2000-memory.dmp

Filesize
392KB

Download
memory/2288-24-0x000000001BE60000-0x000000001BEFC000-memory.dmp

Filesize
624KB

Download
memory/2288-26-0x000000001C0B0000-0x000000001C156000-memory.dmp

Filesize
664KB

Download
memory/2288-22-0x00007FF99E675000-0x00007FF99E676000-memory.dmp

Filesize
4KB

Download
memory/2288-80-0x000000001CF50000-0x000000001CF64000-memory.dmp

Filesize
80KB

Download
memory/2288-30-0x0000000000EE0000-0x0000000000EE8000-memory.dmp

Filesize
32KB

Download
memory/2288-19-0x00007FF99E3C0000-0x00007FF99ED61000-memory.dmp

Filesize
9.6MB

Download
memory/2288-76-0x000000001C1B0000-0x000000001C1BE000-memory.dmp

Filesize
56KB

Download
memory/2288-77-0x000000001CF10000-0x000000001CF22000-memory.dmp

Filesize
72KB

Download
memory/2288-78-0x000000001CF20000-0x000000001CF2C000-memory.dmp

Filesize
48KB

Download
memory/2288-75-0x000000001C8E0000-0x000000001C8FA000-memory.dmp

Filesize
104KB

Download
memory/2288-92-0x00007FF99E3C0000-0x00007FF99ED61000-memory.dmp

Filesize
9.6MB

Download
memory/2288-15-0x00007FF99E675000-0x00007FF99E676000-memory.dmp

Filesize
4KB

Download
memory/2288-49-0x000000001C960000-0x000000001C96A000-memory.dmp

Filesize
40KB

Download
memory/2288-50-0x000000001CB70000-0x000000001CB8E000-memory.dmp

Filesize
120KB

Download
memory/2288-51-0x000000001CDE0000-0x000000001CDEA000-memory.dmp

Filesize
40KB

Download
memory/2288-84-0x000000001CF60000-0x000000001CF8E000-memory.dmp

Filesize
184KB

Download
memory/2288-85-0x000000001CEE0000-0x000000001CEF4000-memory.dmp

Filesize
80KB

Download
memory/2288-79-0x000000001CF30000-0x000000001CF3E000-memory.dmp

Filesize
56KB

Download
memory/2288-82-0x000000001B3F0000-0x000000001B404000-memory.dmp

Filesize
80KB

Download
memory/2288-81-0x000000001B3D0000-0x000000001B3E0000-memory.dmp

Filesize
64KB

Download
memory/2288-74-0x000000001C1A0000-0x000000001C1B2000-memory.dmp

Filesize
72KB

Download
memory/3408-27-0x0000000005620000-0x0000000005642000-memory.dmp

Filesize
136KB

Download
memory/3408-68-0x0000000007AB0000-0x0000000007B46000-memory.dmp

Filesize
600KB

Download
memory/3408-69-0x0000000007A30000-0x0000000007A41000-memory.dmp

Filesize
68KB

Download
memory/3408-70-0x0000000007A70000-0x0000000007A7E000-memory.dmp

Filesize
56KB

Download
memory/3408-71-0x0000000007A80000-0x0000000007A95000-memory.dmp

Filesize
84KB

Download
memory/3408-72-0x0000000007B70000-0x0000000007B8A000-memory.dmp

Filesize
104KB

Download
memory/3408-67-0x00000000078B0000-0x00000000078BA000-memory.dmp

Filesize
40KB

Download
memory/3408-66-0x0000000007820000-0x000000000783A000-memory.dmp

Filesize
104KB

Download
memory/3408-65-0x0000000007E60000-0x00000000084DA000-memory.dmp

Filesize
6.5MB

Download
memory/3408-64-0x00000000076E0000-0x0000000007784000-memory.dmp

Filesize
656KB

Download
memory/3408-54-0x00000000742E0000-0x000000007432C000-memory.dmp

Filesize
304KB

Download
memory/3408-63-0x00000000076C0000-0x00000000076DE000-memory.dmp

Filesize
120KB

Download
memory/3408-52-0x0000000007680000-0x00000000076B4000-memory.dmp

Filesize
208KB

Download
memory/3408-40-0x00000000064C0000-0x00000000064DE000-memory.dmp

Filesize
120KB

Download
memory/3408-43-0x0000000006510000-0x000000000655C000-memory.dmp

Filesize
304KB

Download
memory/3408-39-0x0000000005FF0000-0x0000000006347000-memory.dmp

Filesize
3.3MB

Download
memory/3408-28-0x0000000005F10000-0x0000000005F76000-memory.dmp

Filesize
408KB

Download
memory/3408-29-0x0000000005F80000-0x0000000005FE6000-memory.dmp

Filesize
408KB

Download
memory/3408-86-0x0000000007B60000-0x0000000007B68000-memory.dmp

Filesize
32KB

Download
memory/3408-25-0x0000000005730000-0x0000000005D5A000-memory.dmp

Filesize
6.2MB

Download
memory/3408-20-0x00000000739EE000-0x00000000739EF000-memory.dmp

Filesize
4KB

Download
memory/3408-18-0x0000000005010000-0x0000000005046000-memory.dmp

Filesize
216KB

Download