nanocore | 5f5728979d8799b9b89344289d10afad316e95c8752b20d4ae3b1558844b336b

Analysis

max time kernel
119s
max time network
152s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
11-10-2024 12:14

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General

Target

PO-45728-10876.rtf
Size

707KB
MD5

9bdd083aaef05b39d23fb9ed8233f4aa
SHA1

16d3d99062473242cbdd15a7a99571c49c4cad31
SHA256

5f5728979d8799b9b89344289d10afad316e95c8752b20d4ae3b1558844b336b
SHA512

4f82654b87b637662a8587cf6f851491e66591d2f53cb863f323cc3a0f6aacdae23b1b4a3d1bb943103b70012e2a4e1461551e566b31e0dcbec7c86a973ca8f0
SSDEEP

6144:YwAYwAYwAYwAYwAYwAYwAYwAFSPGSpGeNKgYJ67SEv1TEQPdsh:9r

Score

10^/10

nanocore discovery evasion execution keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

blv23728.ddns.net:6110

127.0.0.1:6110

Mutex

7c49fc8b-b4e3-4ea2-a895-eda0223cb79d

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2024-07-11T09:55:17.304143036Z
bypass_user_account_control
false
bypass_user_account_control_data
PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTE2Ij8+DQo8VGFzayB2ZXJzaW9uPSIxLjIiIHhtbG5zPSJodHRwOi8vc2NoZW1hcy5taWNyb3NvZnQuY29tL3dpbmRvd3MvMjAwNC8wMi9taXQvdGFzayI+DQogIDxSZWdpc3RyYXRpb25JbmZvIC8+DQogIDxUcmlnZ2VycyAvPg0KICA8UHJpbmNpcGFscz4NCiAgICA8UHJpbmNpcGFsIGlkPSJBdXRob3IiPg0KICAgICAgPExvZ29uVHlwZT5JbnRlcmFjdGl2ZVRva2VuPC9Mb2dvblR5cGU+DQogICAgICA8UnVuTGV2ZWw+SGlnaGVzdEF2YWlsYWJsZTwvUnVuTGV2ZWw+DQogICAgPC9QcmluY2lwYWw+DQogIDwvUHJpbmNpcGFscz4NCiAgPFNldHRpbmdzPg0KICAgIDxNdWx0aXBsZUluc3RhbmNlc1BvbGljeT5QYXJhbGxlbDwvTXVsdGlwbGVJbnN0YW5jZXNQb2xpY3k+DQogICAgPERpc2FsbG93U3RhcnRJZk9uQmF0dGVyaWVzPmZhbHNlPC9EaXNhbGxvd1N0YXJ0SWZPbkJhdHRlcmllcz4NCiAgICA8U3RvcElmR29pbmdPbkJhdHRlcmllcz5mYWxzZTwvU3RvcElmR29pbmdPbkJhdHRlcmllcz4NCiAgICA8QWxsb3dIYXJkVGVybWluYXRlPnRydWU8L0FsbG93SGFyZFRlcm1pbmF0ZT4NCiAgICA8U3RhcnRXaGVuQXZhaWxhYmxlPmZhbHNlPC9TdGFydFdoZW5BdmFpbGFibGU+DQogICAgPFJ1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+ZmFsc2U8L1J1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+DQogICAgPElkbGVTZXR0aW5ncz4NCiAgICAgIDxTdG9wT25JZGxlRW5kPmZhbHNlPC9TdG9wT25JZGxlRW5kPg0KICAgICAgPFJlc3RhcnRPbklkbGU+ZmFsc2U8L1Jlc3RhcnRPbklkbGU+DQogICAgPC9JZGxlU2V0dGluZ3M+DQogICAgPEFsbG93U3RhcnRPbkRlbWFuZD50cnVlPC9BbGxvd1N0YXJ0T25EZW1hbmQ+DQogICAgPEVuYWJsZWQ+dHJ1ZTwvRW5hYmxlZD4NCiAgICA8SGlkZGVuPmZhbHNlPC9IaWRkZW4+DQogICAgPFJ1bk9ubHlJZklkbGU+ZmFsc2U8L1J1bk9ubHlJZklkbGU+DQogICAgPFdha2VUb1J1bj5mYWxzZTwvV2FrZVRvUnVuPg0KICAgIDxFeGVjdXRpb25UaW1lTGltaXQ+UFQwUzwvRXhlY3V0aW9uVGltZUxpbWl0Pg0KICAgIDxQcmlvcml0eT40PC9Qcmlvcml0eT4NCiAgPC9TZXR0aW5ncz4NCiAgPEFjdGlvbnMgQ29udGV4dD0iQXV0aG9yIj4NCiAgICA8RXhlYz4NCiAgICAgIDxDb21tYW5kPiIjRVhFQ1VUQUJMRVBBVEgiPC9Db21tYW5kPg0KICAgICAgPEFyZ3VtZW50cz4kKEFyZzApPC9Bcmd1bWVudHM+DQogICAgPC9FeGVjPg0KICA8L0FjdGlvbnM+DQo8L1Rhc2s+
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
6110
default_group
M3M3
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
7c49fc8b-b4e3-4ea2-a895-eda0223cb79d
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
blv23728.ddns.net
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
false
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

Blocklisted process makes network request 1 IoCs

Processes:

EQNEDT32.EXE

flow	pid	Process
3	2688	EQNEDT32.EXE

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

Processes:

powershell.exe

pid	Process
2868	powershell.exe

Downloads MZ/PE file

Executes dropped EXE 2 IoCs

Processes:

iopfgfplug34096.exeiopfgfplug34096.exe

pid	Process
2692	iopfgfplug34096.exe
2876	iopfgfplug34096.exe

Loads dropped DLL 2 IoCs

Processes:

EQNEDT32.EXE

pid	Process
2688	EQNEDT32.EXE
2688	EQNEDT32.EXE

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

iopfgfplug34096.exe

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\DHCP Manager = "C:\\Program Files (x86)\\DHCP Manager\\dhcpmgr.exe"	iopfgfplug34096.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

iopfgfplug34096.exe

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	iopfgfplug34096.exe

Drops file in System32 directory 1 IoCs

Processes:

powershell.exe

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

iopfgfplug34096.exe

description	pid	Process	procid_target
PID 2692 set thread context of 2876	2692	iopfgfplug34096.exe	36

Drops file in Program Files directory 2 IoCs

Processes:

iopfgfplug34096.exe

description	ioc	Process
File created	C:\Program Files (x86)\DHCP Manager\dhcpmgr.exe	iopfgfplug34096.exe
File opened for modification	C:\Program Files (x86)\DHCP Manager\dhcpmgr.exe	iopfgfplug34096.exe

Drops file in Windows directory 1 IoCs

Processes:

WINWORD.EXE

description	ioc	Process
File opened for modification	C:\Windows\Debug\WIA\wiatrace.log	WINWORD.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 7 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

Processes:

iopfgfplug34096.exeiopfgfplug34096.exepowershell.exeschtasks.exeschtasks.exeWINWORD.EXEEQNEDT32.EXE

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iopfgfplug34096.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iopfgfplug34096.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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	WINWORD.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	EQNEDT32.EXE

Office loads VBA resources, possible macro or embedded object present

Launches Equation Editor 1 TTPs 1 IoCs

Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

exploit

Exploitation for Client Execution

T1203

Processes:

EQNEDT32.EXE

pid	Process
2688	EQNEDT32.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

Processes:

schtasks.exeschtasks.exe

pid	Process
1856	schtasks.exe
2936	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

WINWORD.EXE

pid	Process
2704	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

powershell.exeiopfgfplug34096.exe

pid	Process
2868	powershell.exe
2876	iopfgfplug34096.exe
2876	iopfgfplug34096.exe
2876	iopfgfplug34096.exe
2876	iopfgfplug34096.exe
2876	iopfgfplug34096.exe
2876	iopfgfplug34096.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

iopfgfplug34096.exe

pid	Process
2876	iopfgfplug34096.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exeiopfgfplug34096.exe

description	pid	Process
Token: SeDebugPrivilege	2868	powershell.exe
Token: SeDebugPrivilege	2876	iopfgfplug34096.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

WINWORD.EXE

pid	Process
2704	WINWORD.EXE
2704	WINWORD.EXE

Suspicious use of WriteProcessMemory 29 IoCs

Processes:

EQNEDT32.EXEWINWORD.EXEiopfgfplug34096.exeiopfgfplug34096.exe

description	pid	Process	procid_target
PID 2688 wrote to memory of 2692	2688	EQNEDT32.EXE	31
PID 2688 wrote to memory of 2692	2688	EQNEDT32.EXE	31
PID 2688 wrote to memory of 2692	2688	EQNEDT32.EXE	31
PID 2688 wrote to memory of 2692	2688	EQNEDT32.EXE	31
PID 2704 wrote to memory of 596	2704	WINWORD.EXE	33
PID 2704 wrote to memory of 596	2704	WINWORD.EXE	33
PID 2704 wrote to memory of 596	2704	WINWORD.EXE	33
PID 2704 wrote to memory of 596	2704	WINWORD.EXE	33
PID 2692 wrote to memory of 2868	2692	iopfgfplug34096.exe	35
PID 2692 wrote to memory of 2868	2692	iopfgfplug34096.exe	35
PID 2692 wrote to memory of 2868	2692	iopfgfplug34096.exe	35
PID 2692 wrote to memory of 2868	2692	iopfgfplug34096.exe	35
PID 2692 wrote to memory of 2876	2692	iopfgfplug34096.exe	36
PID 2692 wrote to memory of 2876	2692	iopfgfplug34096.exe	36
PID 2692 wrote to memory of 2876	2692	iopfgfplug34096.exe	36
PID 2692 wrote to memory of 2876	2692	iopfgfplug34096.exe	36
PID 2692 wrote to memory of 2876	2692	iopfgfplug34096.exe	36
PID 2692 wrote to memory of 2876	2692	iopfgfplug34096.exe	36
PID 2692 wrote to memory of 2876	2692	iopfgfplug34096.exe	36
PID 2692 wrote to memory of 2876	2692	iopfgfplug34096.exe	36
PID 2692 wrote to memory of 2876	2692	iopfgfplug34096.exe	36
PID 2876 wrote to memory of 2936	2876	iopfgfplug34096.exe	38
PID 2876 wrote to memory of 2936	2876	iopfgfplug34096.exe	38
PID 2876 wrote to memory of 2936	2876	iopfgfplug34096.exe	38
PID 2876 wrote to memory of 2936	2876	iopfgfplug34096.exe	38
PID 2876 wrote to memory of 1856	2876	iopfgfplug34096.exe	40
PID 2876 wrote to memory of 1856	2876	iopfgfplug34096.exe	40
PID 2876 wrote to memory of 1856	2876	iopfgfplug34096.exe	40
PID 2876 wrote to memory of 1856	2876	iopfgfplug34096.exe	40

C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\PO-45728-10876.rtf"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2704
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:596

C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:2688
- C:\Users\Admin\AppData\Roaming\iopfgfplug34096.exe
  "C:\Users\Admin\AppData\Roaming\iopfgfplug34096.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2692
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\iopfgfplug34096.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Drops file in System32 directory
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2868
- - C:\Users\Admin\AppData\Roaming\iopfgfplug34096.exe
    "C:\Users\Admin\AppData\Roaming\iopfgfplug34096.exe"
    3⤵
    - 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:2876
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "DHCP Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD346.tmp"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:2936
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "DHCP Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD3C4.tmp"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:1856

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Exploitation for Client Execution

T1203

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

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpD346.tmp

Filesize
1KB

MD5
136c61e4a216fa6d4c4269fb992b6f06

SHA1
4f3beadb7f10990ebb280c69e9d0b98c55876c51

SHA256
c982aa27a528ad90809948027f2b6f7b5c399d3fa29642226e5c42dabaed297c

SHA512
d7cab40c61ca65c01e0af6e2a7d6ea000638958f7c7c6152cc07c93ceb14c0a83df011f5e72783389f28a98a64154bb61f53394a85ecf4d16f9eb07bcd57d85e

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpD3C4.tmp

Filesize
1KB

MD5
cdf5683344404764a0f3592e9db8a5a1

SHA1
6705943b404de237cdd7080c05af25e2b1b6410c

SHA256
1ea0af7c86be3e61c281ada0470c6dcf178834380def1903b5bb78b49440ffff

SHA512
23c56873ca8520784cc1d6b0b4211b373fff6fb429872932e5274801d3b9d786566877cd16d1ffa0adca8c7aebb0b935701a0c071073edfbdb319002f99a182b

Download Submit
\Users\Admin\AppData\Roaming\iopfgfplug34096.exe

Filesize
607KB

MD5
3f6058dbb64084df7f3da0a1cb23a872

SHA1
632554f2fcc9074d8a243de7c420c5663efb956c

SHA256
c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2

SHA512
a685084608abe12faef64ce719a16688d7a7ce5b81c7a2f0a698fed892b11d4a9e3686b1de64ab3a0ca10bddcfe78b9afcfd76a9fd44768864d7c4c45de7d821

Download Submit
memory/2692-17-0x0000000000F70000-0x000000000100E000-memory.dmp

Filesize
632KB

Download
memory/2692-20-0x00000000003A0000-0x00000000003B2000-memory.dmp

Filesize
72KB

Download
memory/2692-21-0x0000000004D20000-0x0000000004D9A000-memory.dmp

Filesize
488KB

Download
memory/2704-0-0x000000002F061000-0x000000002F062000-memory.dmp

Filesize
4KB

Download
memory/2704-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2704-2-0x00000000712ED000-0x00000000712F8000-memory.dmp

Filesize
44KB

Download
memory/2704-18-0x00000000712ED000-0x00000000712F8000-memory.dmp

Filesize
44KB

Download
memory/2876-24-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2876-49-0x00000000006D0000-0x00000000006E2000-memory.dmp

Filesize
72KB

Download
memory/2876-28-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2876-26-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2876-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2876-22-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2876-33-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2876-34-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2876-44-0x0000000000630000-0x000000000063A000-memory.dmp

Filesize
40KB

Download
memory/2876-45-0x0000000000690000-0x00000000006AE000-memory.dmp

Filesize
120KB

Download
memory/2876-46-0x0000000000640000-0x000000000064A000-memory.dmp

Filesize
40KB

Download
memory/2876-30-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2876-50-0x0000000000B70000-0x0000000000B8A000-memory.dmp

Filesize
104KB

Download
memory/2876-51-0x0000000000C10000-0x0000000000C1E000-memory.dmp

Filesize
56KB

Download
memory/2876-52-0x0000000000E10000-0x0000000000E22000-memory.dmp

Filesize
72KB

Download
memory/2876-53-0x0000000000E20000-0x0000000000E34000-memory.dmp

Filesize
80KB

Download
memory/2876-54-0x0000000000E30000-0x0000000000E40000-memory.dmp

Filesize
64KB

Download
memory/2876-55-0x0000000000E40000-0x0000000000E54000-memory.dmp

Filesize
80KB

Download
memory/2876-56-0x0000000000E90000-0x0000000000E9E000-memory.dmp

Filesize
56KB

Download
memory/2876-57-0x0000000000EA0000-0x0000000000ECE000-memory.dmp

Filesize
184KB

Download
memory/2876-58-0x0000000000F20000-0x0000000000F34000-memory.dmp

Filesize
80KB

Download