nanocore | 5f5728979d8799b9b89344289d10afad316e95c8752b20d4ae3b1558844b336b

Analysis

max time kernel
122s
max time network
150s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
12-10-2024 01:26

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General

Target

5f5728979d8799b9b89344289d10afad316e95c8752b20d4ae3b1558844b336b.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
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
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
4	2460	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
2316	powershell.exe

Downloads MZ/PE file

Executes dropped EXE 2 IoCs

Processes:

iopfgfplug34096.exeiopfgfplug34096.exe

pid	Process
2772	iopfgfplug34096.exe
1088	iopfgfplug34096.exe

Loads dropped DLL 2 IoCs

Processes:

EQNEDT32.EXE

pid	Process
2460	EQNEDT32.EXE
2460	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\SCSI Service = "C:\\Program Files (x86)\\SCSI Service\\scsisvc.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 2772 set thread context of 1088	2772	iopfgfplug34096.exe	38

Drops file in Program Files directory 2 IoCs

Processes:

iopfgfplug34096.exe

description	ioc	Process
File created	C:\Program Files (x86)\SCSI Service\scsisvc.exe	iopfgfplug34096.exe
File opened for modification	C:\Program Files (x86)\SCSI Service\scsisvc.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.exeschtasks.exeschtasks.exeWINWORD.EXEEQNEDT32.EXEiopfgfplug34096.exepowershell.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iopfgfplug34096.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	iopfgfplug34096.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.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
2460	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
2884	schtasks.exe
1292	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

WINWORD.EXE

pid	Process
2308	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 7 IoCs

Processes:

powershell.exeiopfgfplug34096.exe

pid	Process
2316	powershell.exe
1088	iopfgfplug34096.exe
1088	iopfgfplug34096.exe
1088	iopfgfplug34096.exe
1088	iopfgfplug34096.exe
1088	iopfgfplug34096.exe
1088	iopfgfplug34096.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

iopfgfplug34096.exe

pid	Process
1088	iopfgfplug34096.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

powershell.exeiopfgfplug34096.exe

description	pid	Process
Token: SeDebugPrivilege	2316	powershell.exe
Token: SeDebugPrivilege	1088	iopfgfplug34096.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

WINWORD.EXE

pid	Process
2308	WINWORD.EXE
2308	WINWORD.EXE

Suspicious use of WriteProcessMemory 29 IoCs

Processes:

EQNEDT32.EXEWINWORD.EXEiopfgfplug34096.exeiopfgfplug34096.exe

description	pid	Process	procid_target
PID 2460 wrote to memory of 2772	2460	EQNEDT32.EXE	33
PID 2460 wrote to memory of 2772	2460	EQNEDT32.EXE	33
PID 2460 wrote to memory of 2772	2460	EQNEDT32.EXE	33
PID 2460 wrote to memory of 2772	2460	EQNEDT32.EXE	33
PID 2308 wrote to memory of 2448	2308	WINWORD.EXE	35
PID 2308 wrote to memory of 2448	2308	WINWORD.EXE	35
PID 2308 wrote to memory of 2448	2308	WINWORD.EXE	35
PID 2308 wrote to memory of 2448	2308	WINWORD.EXE	35
PID 2772 wrote to memory of 2316	2772	iopfgfplug34096.exe	36
PID 2772 wrote to memory of 2316	2772	iopfgfplug34096.exe	36
PID 2772 wrote to memory of 2316	2772	iopfgfplug34096.exe	36
PID 2772 wrote to memory of 2316	2772	iopfgfplug34096.exe	36
PID 2772 wrote to memory of 1088	2772	iopfgfplug34096.exe	38
PID 2772 wrote to memory of 1088	2772	iopfgfplug34096.exe	38
PID 2772 wrote to memory of 1088	2772	iopfgfplug34096.exe	38
PID 2772 wrote to memory of 1088	2772	iopfgfplug34096.exe	38
PID 2772 wrote to memory of 1088	2772	iopfgfplug34096.exe	38
PID 2772 wrote to memory of 1088	2772	iopfgfplug34096.exe	38
PID 2772 wrote to memory of 1088	2772	iopfgfplug34096.exe	38
PID 2772 wrote to memory of 1088	2772	iopfgfplug34096.exe	38
PID 2772 wrote to memory of 1088	2772	iopfgfplug34096.exe	38
PID 1088 wrote to memory of 1292	1088	iopfgfplug34096.exe	39
PID 1088 wrote to memory of 1292	1088	iopfgfplug34096.exe	39
PID 1088 wrote to memory of 1292	1088	iopfgfplug34096.exe	39
PID 1088 wrote to memory of 1292	1088	iopfgfplug34096.exe	39
PID 1088 wrote to memory of 2884	1088	iopfgfplug34096.exe	41
PID 1088 wrote to memory of 2884	1088	iopfgfplug34096.exe	41
PID 1088 wrote to memory of 2884	1088	iopfgfplug34096.exe	41
PID 1088 wrote to memory of 2884	1088	iopfgfplug34096.exe	41

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\5f5728979d8799b9b89344289d10afad316e95c8752b20d4ae3b1558844b336b.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:2308
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:2448

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:2460
- 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:2772
- - 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:2316
- - 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:1088
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "SCSI Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7974.tmp"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:1292
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "SCSI Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp79E2.tmp"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:2884

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\tmp7974.tmp

Filesize
1KB

MD5
136c61e4a216fa6d4c4269fb992b6f06

SHA1
4f3beadb7f10990ebb280c69e9d0b98c55876c51

SHA256
c982aa27a528ad90809948027f2b6f7b5c399d3fa29642226e5c42dabaed297c

SHA512
d7cab40c61ca65c01e0af6e2a7d6ea000638958f7c7c6152cc07c93ceb14c0a83df011f5e72783389f28a98a64154bb61f53394a85ecf4d16f9eb07bcd57d85e

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp79E2.tmp

Filesize
1KB

MD5
4e71faa3a77029484cfaba423d96618f

SHA1
9c837d050bb43d69dc608af809c292e13bca4718

SHA256
c470f45efd2e7c4c5b88534a18965a78dce0f8e154d3e45a9d5569ad0e334bdb

SHA512
6d014de41352f2b0b494d94cd58188791e81d4e53578d0722110b6827793b735e19c614877f25c61b26233dea1b5f1998ba1240bdc8fa04c87b7e64a4ca15fe0

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

Filesize
607KB

MD5
3f6058dbb64084df7f3da0a1cb23a872

SHA1
632554f2fcc9074d8a243de7c420c5663efb956c

SHA256
c56b0068b210b206f7c93062eb115654919ea50fcb21a35391b25e33fcf92af2

SHA512
a685084608abe12faef64ce719a16688d7a7ce5b81c7a2f0a698fed892b11d4a9e3686b1de64ab3a0ca10bddcfe78b9afcfd76a9fd44768864d7c4c45de7d821

Download Submit
memory/1088-52-0x00000000008B0000-0x00000000008C2000-memory.dmp

Filesize
72KB

Download
memory/1088-53-0x0000000000910000-0x000000000092A000-memory.dmp

Filesize
104KB

Download
memory/1088-59-0x0000000002130000-0x000000000213E000-memory.dmp

Filesize
56KB

Download
memory/1088-61-0x0000000004320000-0x0000000004334000-memory.dmp

Filesize
80KB

Download
memory/1088-60-0x00000000041C0000-0x00000000041EE000-memory.dmp

Filesize
184KB

Download
memory/1088-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1088-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1088-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1088-34-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1088-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1088-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1088-37-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1088-36-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1088-58-0x0000000002120000-0x0000000002134000-memory.dmp

Filesize
80KB

Download
memory/1088-57-0x0000000002110000-0x0000000002120000-memory.dmp

Filesize
64KB

Download
memory/1088-47-0x0000000000460000-0x000000000046A000-memory.dmp

Filesize
40KB

Download
memory/1088-48-0x0000000000870000-0x000000000088E000-memory.dmp

Filesize
120KB

Download
memory/1088-49-0x0000000000470000-0x000000000047A000-memory.dmp

Filesize
40KB

Download
memory/1088-56-0x0000000002000000-0x0000000002014000-memory.dmp

Filesize
80KB

Download
memory/1088-55-0x0000000001FF0000-0x0000000002002000-memory.dmp

Filesize
72KB

Download
memory/1088-54-0x0000000000930000-0x000000000093E000-memory.dmp

Filesize
56KB

Download
memory/2308-0-0x000000002F0D1000-0x000000002F0D2000-memory.dmp

Filesize
4KB

Download
memory/2308-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2308-2-0x000000007126D000-0x0000000071278000-memory.dmp

Filesize
44KB

Download
memory/2308-22-0x000000007126D000-0x0000000071278000-memory.dmp

Filesize
44KB

Download
memory/2772-17-0x0000000000940000-0x00000000009DE000-memory.dmp

Filesize
632KB

Download
memory/2772-24-0x0000000007E60000-0x0000000007EDA000-memory.dmp

Filesize
488KB

Download
memory/2772-23-0x00000000002F0000-0x0000000000302000-memory.dmp

Filesize
72KB

Download