nanocore | fcf8b6406f92a604fa5f8972fc48e55c1790a63abbcb72811984e35515cdf058

Analysis

max time kernel
136s
max time network
143s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03/03/2025, 21:35

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General

Target

56643e8d47bf957982131424f5813be5.exe
Size

353KB
MD5

56643e8d47bf957982131424f5813be5
SHA1

3a3f934194846aca94feb191711c310221013cc3
SHA256

fcf8b6406f92a604fa5f8972fc48e55c1790a63abbcb72811984e35515cdf058
SHA512

805f0252c41bee936f96f0584f393d84248dbe1ed8efbc71dd8a5b0246db55e5cfeaf1b50508e8517252bfe2f9a0e9f119a0fbb0d83f9e33714fd3ecc63ac69d
SSDEEP

6144:/2HTwL6csbaj/4vtvL33qzYti59EvgEINhclb/wjVbtzRup1JFD+wMoxrM:/76c4pH8yBvPKC/wjVbt0hFDfPxrM

Score

10^/10

nanocore defense_evasion discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

192.3.96.75:1808

Mutex

f7e81cd8-f7bb-4a8b-8bd9-3bcdaa48625f

Attributes

activate_away_mode
false
backup_connection_host
192.3.96.75
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2024-12-06T15:03:41.433046936Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
false
clear_zone_identifier
false
connect_delay
4000
connection_port
1808
default_group
PasteWare
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
f7e81cd8-f7bb-4a8b-8bd9-3bcdaa48625f
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
192.3.96.75
primary_dns_server
8.8.8.8
request_elevation
false
restart_delay
5000
run_delay
0
run_on_startup
false
set_critical_process
false
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
3068	PW.exe
2084	Loader.exe

Loads dropped DLL 2 IoCs

pid	Process
292	56643e8d47bf957982131424f5813be5.exe
292	56643e8d47bf957982131424f5813be5.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\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\IMAP Monitor = "C:\\Program Files (x86)\\IMAP Monitor\\imapmon.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 created	C:\Program Files (x86)\IMAP Monitor\imapmon.exe	PW.exe
File opened for modification	C:\Program Files (x86)\IMAP Monitor\imapmon.exe	PW.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\Windows\PW.exe	56643e8d47bf957982131424f5813be5.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 6 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.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Loader.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	56643e8d47bf957982131424f5813be5.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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
2836	PING.EXE

Delays execution with timeout.exe 6 IoCs

defense_evasion

pid	Process
2660	timeout.exe
2644	timeout.exe
1464	timeout.exe
2868	timeout.exe
976	timeout.exe
2736	timeout.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
2836	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
2896	schtasks.exe
2640	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2000	powershell.exe
3068	PW.exe
3068	PW.exe
3068	PW.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3068	PW.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2000	powershell.exe
Token: SeDebugPrivilege	3068	PW.exe
Token: SeDebugPrivilege	3068	PW.exe

Suspicious use of WriteProcessMemory 60 IoCs

description	pid	Process	procid_target
PID 292 wrote to memory of 2000	292	56643e8d47bf957982131424f5813be5.exe	30
PID 292 wrote to memory of 2000	292	56643e8d47bf957982131424f5813be5.exe	30
PID 292 wrote to memory of 2000	292	56643e8d47bf957982131424f5813be5.exe	30
PID 292 wrote to memory of 2000	292	56643e8d47bf957982131424f5813be5.exe	30
PID 292 wrote to memory of 3068	292	56643e8d47bf957982131424f5813be5.exe	32
PID 292 wrote to memory of 3068	292	56643e8d47bf957982131424f5813be5.exe	32
PID 292 wrote to memory of 3068	292	56643e8d47bf957982131424f5813be5.exe	32
PID 292 wrote to memory of 3068	292	56643e8d47bf957982131424f5813be5.exe	32
PID 292 wrote to memory of 2084	292	56643e8d47bf957982131424f5813be5.exe	33
PID 292 wrote to memory of 2084	292	56643e8d47bf957982131424f5813be5.exe	33
PID 292 wrote to memory of 2084	292	56643e8d47bf957982131424f5813be5.exe	33
PID 292 wrote to memory of 2084	292	56643e8d47bf957982131424f5813be5.exe	33
PID 2084 wrote to memory of 2312	2084	Loader.exe	35
PID 2084 wrote to memory of 2312	2084	Loader.exe	35
PID 2084 wrote to memory of 2312	2084	Loader.exe	35
PID 2084 wrote to memory of 2312	2084	Loader.exe	35
PID 2312 wrote to memory of 2072	2312	cmd.exe	36
PID 2312 wrote to memory of 2072	2312	cmd.exe	36
PID 2312 wrote to memory of 2072	2312	cmd.exe	36
PID 2072 wrote to memory of 2740	2072	cmd.exe	37
PID 2072 wrote to memory of 2740	2072	cmd.exe	37
PID 2072 wrote to memory of 2740	2072	cmd.exe	37
PID 2072 wrote to memory of 2760	2072	cmd.exe	38
PID 2072 wrote to memory of 2760	2072	cmd.exe	38
PID 2072 wrote to memory of 2760	2072	cmd.exe	38
PID 2312 wrote to memory of 2884	2312	cmd.exe	39
PID 2312 wrote to memory of 2884	2312	cmd.exe	39
PID 2312 wrote to memory of 2884	2312	cmd.exe	39
PID 2312 wrote to memory of 2768	2312	cmd.exe	40
PID 2312 wrote to memory of 2768	2312	cmd.exe	40
PID 2312 wrote to memory of 2768	2312	cmd.exe	40
PID 2312 wrote to memory of 2736	2312	cmd.exe	41
PID 2312 wrote to memory of 2736	2312	cmd.exe	41
PID 2312 wrote to memory of 2736	2312	cmd.exe	41
PID 3068 wrote to memory of 2896	3068	PW.exe	42
PID 3068 wrote to memory of 2896	3068	PW.exe	42
PID 3068 wrote to memory of 2896	3068	PW.exe	42
PID 3068 wrote to memory of 2896	3068	PW.exe	42
PID 3068 wrote to memory of 2640	3068	PW.exe	44
PID 3068 wrote to memory of 2640	3068	PW.exe	44
PID 3068 wrote to memory of 2640	3068	PW.exe	44
PID 3068 wrote to memory of 2640	3068	PW.exe	44
PID 2312 wrote to memory of 2660	2312	cmd.exe	46
PID 2312 wrote to memory of 2660	2312	cmd.exe	46
PID 2312 wrote to memory of 2660	2312	cmd.exe	46
PID 2312 wrote to memory of 2836	2312	cmd.exe	47
PID 2312 wrote to memory of 2836	2312	cmd.exe	47
PID 2312 wrote to memory of 2836	2312	cmd.exe	47
PID 2312 wrote to memory of 2644	2312	cmd.exe	48
PID 2312 wrote to memory of 2644	2312	cmd.exe	48
PID 2312 wrote to memory of 2644	2312	cmd.exe	48
PID 2312 wrote to memory of 1464	2312	cmd.exe	49
PID 2312 wrote to memory of 1464	2312	cmd.exe	49
PID 2312 wrote to memory of 1464	2312	cmd.exe	49
PID 2312 wrote to memory of 2868	2312	cmd.exe	51
PID 2312 wrote to memory of 2868	2312	cmd.exe	51
PID 2312 wrote to memory of 2868	2312	cmd.exe	51
PID 2312 wrote to memory of 976	2312	cmd.exe	52
PID 2312 wrote to memory of 976	2312	cmd.exe	52
PID 2312 wrote to memory of 976	2312	cmd.exe	52

C:\Users\Admin\AppData\Local\Temp\56643e8d47bf957982131424f5813be5.exe
"C:\Users\Admin\AppData\Local\Temp\56643e8d47bf957982131424f5813be5.exe"
1⤵
- Loads dropped DLL
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:292
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -EncodedCommand "PAAjAHgAaABiACMAPgBBAGQAZAAtAE0AcABQAHIAZQBmAGUAcgBlAG4AYwBlACAAPAAjAGkAeAByACMAPgAgAC0ARQB4AGMAbAB1AHMAaQBvAG4AUABhAHQAaAAgAEAAKAAkAGUAbgB2ADoAVQBzAGUAcgBQAHIAbwBmAGkAbABlACwAJABlAG4AdgA6AFMAeQBzAHQAZQBtAEQAcgBpAHYAZQApACAAPAAjAGIAdwBrACMAPgAgAC0ARgBvAHIAYwBlACAAPAAjAG4AdwBkACMAPgA="
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2000
- 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
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3068
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "IMAP Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmpAFBF.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2896
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "IMAP Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB04D.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2640
- 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:2084
- - C:\Windows\system32\cmd.exe
    "C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\AEB6.tmp\AEB7.tmp\AEB8.bat C:\Users\Admin\AppData\Local\Temp\Loader.exe"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2312
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c echo prompt $E | cmd
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2072
    - - C:\Windows\system32\cmd.exe
        
        C:\Windows\system32\cmd.exe /S /D /c" echo prompt $E "
        5⤵
        
        PID:2740
    - - C:\Windows\system32\cmd.exe
        
        cmd
        5⤵
        
        PID:2760
  - - C:\Windows\system32\chcp.com
      chcp 65001
      4⤵
      PID:2884
  - - C:\Windows\system32\mode.com
      mode 76, 30
      4⤵
      PID:2768
  - - C:\Windows\system32\timeout.exe
      timeout /t 1 /nobreak
      4⤵
      Delays execution with timeout.exe
      PID:2736
  - - C:\Windows\system32\timeout.exe
      timeout /t 1 /nobreak
      4⤵
      Delays execution with timeout.exe
      PID:2660
  - - C:\Windows\system32\PING.EXE
      ping /n 1 /w 400 localhost
      4⤵
      System Network Configuration Discovery: Internet Connection Discovery
      Runs ping.exe
      PID:2836
  - - C:\Windows\system32\timeout.exe
      timeout /t 5 /nobreak
      4⤵
      Delays execution with timeout.exe
      PID:2644
  - - C:\Windows\system32\timeout.exe
      timeout /t 1 /nobreak
      4⤵
      Delays execution with timeout.exe
      PID:1464
  - - C:\Windows\system32\timeout.exe
      timeout /t 5 /nobreak
      4⤵
      Delays execution with timeout.exe
      PID:2868
  - - C:\Windows\system32\timeout.exe
      timeout /t 1 /nobreak
      4⤵
      Delays execution with timeout.exe
      PID:976

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

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\AEB6.tmp\AEB7.tmp\AEB8.bat

Filesize
873B

MD5
566e6a066b92cfebc3d0335e4040cb4e

SHA1
46d51fafe54222520870b8b0152ec21171c9b74d

SHA256
32ae4d96a660d1a0e4383d7b589a581d0c6cd20727cf918c787fa695f2820a0e

SHA512
c9f8d55845368226163c605c44ce47f92dea81d4d40dfdd317ffb67a0175de1cd9ccd74285fac940974be7bf41642055a79775baae3f766df323c142f8eca556

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

Filesize
1KB

MD5
2ffead7bac45fb92c7e7fdd337c3d07d

SHA1
cf1335a23b061148d12ab7297b09bc9a028a0e3d

SHA256
08f809f86780ba005342a9cbb3ae9a54a3c151a0b494cbcd59fcc53903e705d6

SHA512
0f9d3da64b85770e1e8e383071b42d193cd24e2f4e1693a7f4ce98a1e0c92a175c683f69b9ff727abad6161f5ece39f0ea2caa098e24314256a90864192ac178

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpB04D.tmp

Filesize
1KB

MD5
d2d6911d94b06e405e7687a2437eafec

SHA1
9f28f9e7d8d5179d44ddaa6ca266984ed7521dea

SHA256
2dc87169ad53fbdd7abb08f49777cb8fb05adbff4e6f6616b4c89942af8cad0f

SHA512
b5983de701ff98e944283a25f1770c1e792d52148dc1671f1d19203f8b9d10b056abcf79a17ca536a5f88ccf52f6445d8f3e75fce628666640ad8bad697dcfd1

Download Submit
C:\Windows\PW.exe

Filesize
203KB

MD5
661853c344c274af24c2d172db42cc9b

SHA1
4bf93aa965559f99c85e521f5984cb409591f54c

SHA256
54c028b0bb2728975b22d500df2164a3218670a3db6cb8a9a31654fdc2b8a20b

SHA512
ebc3286c97af3f8df973842c21422c124160fefeeeda50757f7e41c9b9fb7405d4d25bd11c5e0a31ab90b41482b444aa5a6e2348f1b475a08238e0784bcd2503

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

Filesize
117KB

MD5
02d696883a7203cc4751705c59bc1e2a

SHA1
2ab1c8e52cee860f41342949d9b7cf8d2f1011d9

SHA256
5ca70c26ef954b416ca7f7419f8291a5db7db3523139126e5a8e07d3a33ca72c

SHA512
0dc4c42e406783946ec279c037c7141839c73cf080e834a12abc3ac4e016af8bc52b712affd539693ddc5f40f3231ac983a9e3c3db5bc4aefadacad2a8efc6bf

Download Submit
memory/3068-19-0x0000000000B20000-0x0000000000B60000-memory.dmp

Filesize
256KB

Download
memory/3068-29-0x0000000000B20000-0x0000000000B60000-memory.dmp

Filesize
256KB

Download