nanocore | e25240231baa27e14f83428e060074197a63affbcf6f1c7990aa4a3115d4b7fd

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
24-09-2024 11:08

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General

Target

e25240231baa27e14f83428e060074197a63affbcf6f1c7990aa4a3115d4b7fd.rtf
Size

830KB
MD5

da0bf0c618afdcec9df34d437794e4c0
SHA1

f85223bf5b04d6eceb04baeee97825b060337dd5
SHA256

e25240231baa27e14f83428e060074197a63affbcf6f1c7990aa4a3115d4b7fd
SHA512

d168bff7c385b5a1de789dc19ec3f54c4ea720fcb8612da3ae838b536262479147ecb7497facd507a342b9c9724edf3b29b1bc213b176b835887c85a1e369541
SSDEEP

6144:VwAYwAYwAYwAYwAtFt+VG0BNs1H4wP/2OJ0+Q8XxBR:BR

Score

10^/10

nanocore discovery evasion execution keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

pnauco5.ddns.net:1664

Mutex

cde38e58-d99c-4068-b775-59569bc2e8ce

Attributes

activate_away_mode
true
backup_connection_host
pnauco5.ddns.net
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2024-07-03T06:48:27.569053036Z
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
1664
default_group
NEW
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
cde38e58-d99c-4068-b775-59569bc2e8ce
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
pnauco5.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

flow	pid	Process
4	2388	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

pid	Process
2260	powershell.exe

Downloads MZ/PE file

Executes dropped EXE 2 IoCs

pid	Process
2056	wehdpcat93625.exe
2960	wehdpcat93625.exe

Loads dropped DLL 1 IoCs

pid	Process
2388	EQNEDT32.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\DPI Subsystem = "C:\\Program Files (x86)\\DPI Subsystem\\dpiss.exe"	wehdpcat93625.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	wehdpcat93625.exe

Drops file in System32 directory 1 IoCs

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

description	pid	Process	procid_target
PID 2056 set thread context of 2960	2056	wehdpcat93625.exe	37

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\DPI Subsystem\dpiss.exe	wehdpcat93625.exe
File created	C:\Program Files (x86)\DPI Subsystem\dpiss.exe	wehdpcat93625.exe

Drops file in Windows directory 1 IoCs

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wehdpcat93625.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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wehdpcat93625.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

pid	Process
2388	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

pid	Process
1244	schtasks.exe
2288	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
2336	WINWORD.EXE

Suspicious behavior: EnumeratesProcesses 13 IoCs

pid	Process
2260	powershell.exe
2960	wehdpcat93625.exe
2960	wehdpcat93625.exe
2960	wehdpcat93625.exe
2960	wehdpcat93625.exe
2960	wehdpcat93625.exe
2960	wehdpcat93625.exe
2960	wehdpcat93625.exe
2960	wehdpcat93625.exe
2960	wehdpcat93625.exe
2960	wehdpcat93625.exe
2960	wehdpcat93625.exe
2960	wehdpcat93625.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2960	wehdpcat93625.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2260	powershell.exe
Token: SeDebugPrivilege	2960	wehdpcat93625.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2336	WINWORD.EXE
2336	WINWORD.EXE

Suspicious use of WriteProcessMemory 29 IoCs

description	pid	Process	procid_target
PID 2388 wrote to memory of 2056	2388	EQNEDT32.EXE	32
PID 2388 wrote to memory of 2056	2388	EQNEDT32.EXE	32
PID 2388 wrote to memory of 2056	2388	EQNEDT32.EXE	32
PID 2388 wrote to memory of 2056	2388	EQNEDT32.EXE	32
PID 2336 wrote to memory of 2512	2336	WINWORD.EXE	35
PID 2336 wrote to memory of 2512	2336	WINWORD.EXE	35
PID 2336 wrote to memory of 2512	2336	WINWORD.EXE	35
PID 2336 wrote to memory of 2512	2336	WINWORD.EXE	35
PID 2056 wrote to memory of 2260	2056	wehdpcat93625.exe	36
PID 2056 wrote to memory of 2260	2056	wehdpcat93625.exe	36
PID 2056 wrote to memory of 2260	2056	wehdpcat93625.exe	36
PID 2056 wrote to memory of 2260	2056	wehdpcat93625.exe	36
PID 2056 wrote to memory of 2960	2056	wehdpcat93625.exe	37
PID 2056 wrote to memory of 2960	2056	wehdpcat93625.exe	37
PID 2056 wrote to memory of 2960	2056	wehdpcat93625.exe	37
PID 2056 wrote to memory of 2960	2056	wehdpcat93625.exe	37
PID 2056 wrote to memory of 2960	2056	wehdpcat93625.exe	37
PID 2056 wrote to memory of 2960	2056	wehdpcat93625.exe	37
PID 2056 wrote to memory of 2960	2056	wehdpcat93625.exe	37
PID 2056 wrote to memory of 2960	2056	wehdpcat93625.exe	37
PID 2056 wrote to memory of 2960	2056	wehdpcat93625.exe	37
PID 2960 wrote to memory of 2288	2960	wehdpcat93625.exe	39
PID 2960 wrote to memory of 2288	2960	wehdpcat93625.exe	39
PID 2960 wrote to memory of 2288	2960	wehdpcat93625.exe	39
PID 2960 wrote to memory of 2288	2960	wehdpcat93625.exe	39
PID 2960 wrote to memory of 1244	2960	wehdpcat93625.exe	41
PID 2960 wrote to memory of 1244	2960	wehdpcat93625.exe	41
PID 2960 wrote to memory of 1244	2960	wehdpcat93625.exe	41
PID 2960 wrote to memory of 1244	2960	wehdpcat93625.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\e25240231baa27e14f83428e060074197a63affbcf6f1c7990aa4a3115d4b7fd.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:2336
- C:\Windows\splwow64.exe
  C:\Windows\splwow64.exe 12288
  2⤵
  PID:2512

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:2388
- C:\Users\Admin\AppData\Roaming\wehdpcat93625.exe
  "C:\Users\Admin\AppData\Roaming\wehdpcat93625.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2056
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\wehdpcat93625.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:2260
- - C:\Users\Admin\AppData\Roaming\wehdpcat93625.exe
    "C:\Users\Admin\AppData\Roaming\wehdpcat93625.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:2960
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "DPI Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpF1CE.tmp"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:2288
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "DPI Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpF25B.tmp"
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:1244

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\tmpF1CE.tmp

Filesize
1KB

MD5
7615ace31d4f031adbe9dcc0dbf9d79e

SHA1
0d98e20f1f3b5485c61a0857f1ea3b4e048b22c9

SHA256
f7152a3f6ecea29cccec1906dd51a163ea60812546dff5843edffdfec7ff9aaf

SHA512
6b86f5f08b9632a88dd1c954bf7d02207fa1fbed72807443f23e54e7b1ec0ec723ef93241b2445a40f6bcfb19e821c7e7dc33aac62d5ce1ee40a54fa4debd3b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpF25B.tmp

Filesize
1KB

MD5
5fea24e883e06e4df6d240dc72abf2c5

SHA1
d778bf0f436141e02df4b421e8188abdcc9a84a4

SHA256
e858982f4ab3c74f7a8903eea18c0f73501a77273ae38b54d5c9dec997e79a66

SHA512
15afc2ffbbee14d28a5ff8dc8285d01c942147aada36fb33e31045a4e998769b51738bebe199bcad3462f918b535845a893aa2f80c84b9c795cd1fee4a327924

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm

Filesize
19KB

MD5
693fd526cd22239f7ad163a3e7cb4cff

SHA1
e26136bde012feaed17c71780fed200cbfd1f79a

SHA256
9962457b4b59654545dc11e055ebe81382bc6703e02bce68c29a690ff7c5a927

SHA512
f1e77a4e2c47ad0191bfba628bdfb31d3b783b347f26dbe2d36ce2259a48e12c6e00737eacbc6a597edf596c54e1ea044f6660e06552d9261e9c116b58e47d89

Download Submit
C:\Users\Admin\AppData\Roaming\wehdpcat93625.exe

Filesize
629KB

MD5
280baa14b25c23e63122a4028928dff0

SHA1
8070c5e450768312a50c64be6edc386b009bea77

SHA256
4a842606d80e5bc30a9817fc11877889b24e3daccc2ba7ea0711d5c259e70226

SHA512
26b96a7b246c3abaa02a989ea1e90a9ede181133f8a1e1b9605b3812f1505527d4164e14c169c73773e5872881bfa512793cffb381110c4a3b4f160e307f0f6f

Download Submit
memory/2056-24-0x0000000005470000-0x00000000054EA000-memory.dmp

Filesize
488KB

Download
memory/2056-13-0x000000006B18E000-0x000000006B18F000-memory.dmp

Filesize
4KB

Download
memory/2056-16-0x00000000007B0000-0x00000000007C2000-memory.dmp

Filesize
72KB

Download
memory/2056-23-0x000000006B18E000-0x000000006B18F000-memory.dmp

Filesize
4KB

Download
memory/2056-15-0x0000000000270000-0x0000000000314000-memory.dmp

Filesize
656KB

Download
memory/2336-21-0x00000000710DD000-0x00000000710E8000-memory.dmp

Filesize
44KB

Download
memory/2336-0-0x000000002FF31000-0x000000002FF32000-memory.dmp

Filesize
4KB

Download
memory/2336-2-0x00000000710DD000-0x00000000710E8000-memory.dmp

Filesize
44KB

Download
memory/2336-89-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2336-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/2960-48-0x0000000000590000-0x00000000005AE000-memory.dmp

Filesize
120KB

Download
memory/2960-54-0x00000000007B0000-0x00000000007BE000-memory.dmp

Filesize
56KB

Download
memory/2960-29-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2960-27-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2960-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2960-34-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2960-47-0x0000000000560000-0x000000000056A000-memory.dmp

Filesize
40KB

Download
memory/2960-25-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2960-49-0x0000000000570000-0x000000000057A000-memory.dmp

Filesize
40KB

Download
memory/2960-52-0x0000000000690000-0x00000000006A2000-memory.dmp

Filesize
72KB

Download
memory/2960-53-0x0000000002110000-0x000000000212A000-memory.dmp

Filesize
104KB

Download
memory/2960-31-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2960-55-0x0000000002140000-0x0000000002152000-memory.dmp

Filesize
72KB

Download
memory/2960-56-0x0000000002190000-0x000000000219C000-memory.dmp

Filesize
48KB

Download
memory/2960-57-0x0000000002250000-0x000000000225E000-memory.dmp

Filesize
56KB

Download
memory/2960-58-0x0000000002260000-0x0000000002274000-memory.dmp

Filesize
80KB

Download
memory/2960-59-0x0000000002270000-0x0000000002280000-memory.dmp

Filesize
64KB

Download
memory/2960-60-0x0000000004850000-0x0000000004864000-memory.dmp

Filesize
80KB

Download
memory/2960-61-0x00000000048A0000-0x00000000048AE000-memory.dmp

Filesize
56KB

Download
memory/2960-62-0x0000000004950000-0x000000000497E000-memory.dmp

Filesize
184KB

Download
memory/2960-63-0x0000000004900000-0x0000000004914000-memory.dmp

Filesize
80KB

Download
memory/2960-36-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2960-37-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download