nanocore | 6a19ede919d3ef32c74ddbcefb4bfd3ef61ba2a86739978ed337639193678edb

Analysis

max time kernel
138s
max time network
153s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
29/01/2025, 08:51

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General

Target
order details.XLSx.exe
Size 823KB
Sample250129-kr6d6atjay
SHA256 6a19ede919d3ef32c74ddbcefb4bfd3ef61ba2a86739978ed337639193678edb
MD5 0ddcd72fe68a08cdba7dcd88b558e119
SHA1 5115f0642f1406b87bc82b949b6ee7610bbceab7
SHA512 3f4e73167eca733f2d683907e6740dc7679d221dbd6d4c90a575158a04462ab4cf98a3e59500dc804988524ce8933d1e512c04fdf3cb83d6af0f72aaac52d131
SSDEEP 12288:OzSggsivGjBjqrIbRC8D0No3nvudnBlGL3q74USqpsHcCbiqWiEBKz6o76:OzUmEGYnP63q74USk2biSnz
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nanocore defense_evasion discovery execution keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

91.92.240.88:2777

Mutex

25449be1-a962-4d47-a9f7-c613578ec634

Attributes

activate_away_mode
true
backup_connection_host
91.92.240.88
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2024-04-19T10:57:33.704241736Z
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
2777
default_group
Default
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
25449be1-a962-4d47-a9f7-c613578ec634
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
91.92.240.88
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
Nanocore family
nanocore

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
2820	powershell.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\WPA Service = "C:\\Program Files (x86)\\WPA Service\\wpasv.exe"	order details.XLSx.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	order details.XLSx.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2348 set thread context of 580	2348	order details.XLSx.exe	33

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\WPA Service\wpasv.exe	order details.XLSx.exe
File opened for modification	C:\Program Files (x86)\WPA Service\wpasv.exe	order details.XLSx.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	order details.XLSx.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	order details.XLSx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 3 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
1036	schtasks.exe
2556	schtasks.exe
2448	schtasks.exe

Suspicious behavior: EnumeratesProcesses 38 IoCs

pid	Process
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2348	order details.XLSx.exe
2820	powershell.exe
580	order details.XLSx.exe
580	order details.XLSx.exe
580	order details.XLSx.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
580	order details.XLSx.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2348	order details.XLSx.exe
Token: SeDebugPrivilege	2820	powershell.exe
Token: SeDebugPrivilege	580	order details.XLSx.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 2348 wrote to memory of 2820	2348	order details.XLSx.exe	29
PID 2348 wrote to memory of 2820	2348	order details.XLSx.exe	29
PID 2348 wrote to memory of 2820	2348	order details.XLSx.exe	29
PID 2348 wrote to memory of 2820	2348	order details.XLSx.exe	29
PID 2348 wrote to memory of 1036	2348	order details.XLSx.exe	31
PID 2348 wrote to memory of 1036	2348	order details.XLSx.exe	31
PID 2348 wrote to memory of 1036	2348	order details.XLSx.exe	31
PID 2348 wrote to memory of 1036	2348	order details.XLSx.exe	31
PID 2348 wrote to memory of 580	2348	order details.XLSx.exe	33
PID 2348 wrote to memory of 580	2348	order details.XLSx.exe	33
PID 2348 wrote to memory of 580	2348	order details.XLSx.exe	33
PID 2348 wrote to memory of 580	2348	order details.XLSx.exe	33
PID 2348 wrote to memory of 580	2348	order details.XLSx.exe	33
PID 2348 wrote to memory of 580	2348	order details.XLSx.exe	33
PID 2348 wrote to memory of 580	2348	order details.XLSx.exe	33
PID 2348 wrote to memory of 580	2348	order details.XLSx.exe	33
PID 2348 wrote to memory of 580	2348	order details.XLSx.exe	33
PID 580 wrote to memory of 2556	580	order details.XLSx.exe	34
PID 580 wrote to memory of 2556	580	order details.XLSx.exe	34
PID 580 wrote to memory of 2556	580	order details.XLSx.exe	34
PID 580 wrote to memory of 2556	580	order details.XLSx.exe	34
PID 580 wrote to memory of 2448	580	order details.XLSx.exe	36
PID 580 wrote to memory of 2448	580	order details.XLSx.exe	36
PID 580 wrote to memory of 2448	580	order details.XLSx.exe	36
PID 580 wrote to memory of 2448	580	order details.XLSx.exe	36

C:\Users\Admin\AppData\Local\Temp\order details.XLSx.exe
"C:\Users\Admin\AppData\Local\Temp\order details.XLSx.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2348
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\SrVRkjAnDPHx.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2820
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SrVRkjAnDPHx" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2913.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:1036
- C:\Users\Admin\AppData\Local\Temp\order details.XLSx.exe
  "C:\Users\Admin\AppData\Local\Temp\order details.XLSx.exe"
  2⤵
  - 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:580
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "WPA Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp39F4.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2556
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "WPA Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp3D30.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2448

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

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

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Downloads

tmp2913.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp2913.tmp
Size 1KB
SHA256 f3a16c24d76681fa2644070503332991cb04c489c360734e4c845926daeba330
MD5 70f013b1907e6946767773231e1cfe5f
SHA1 44a3ac34f4dc1f37e5ef77a8cdfe1a7d9f666f68
SHA512 3df00f483a4850e0de8a255e4252504963c3afccf5ad2d4386bea919abcc7c2fe933532f510f1a5b643a7a665bd88e270ce729c8c83786a35767b218d0572515
MD5 SHA1 SHA512

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tmp39F4.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp39F4.tmp
Size 1KB
SHA256 04e22bd38715ac696398a4238cd11c0e6d2ed715ca1fd8c00004882d72ed1571
MD5 a40bd5ec4bceb25e418af60f17f71bf7
SHA1 b6e88de77f429b7cb2e2e88a11e9eb1f710949d3
SHA512 2a9cb9128282e24258d65c89e6ebb5c8bfffb48a221d4fd1ede225a0f35b2d925ec92635107c699511fb16c585aa117cbe4bb2dc6ce2b648908c6faa4a46ada7
MD5 SHA1 SHA512

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tmp3D30.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp3D30.tmp
Size 1KB
SHA256 23af17733a3882cdd82a5bbc321d896b2430dc1bb4b4ac034d129cde5027afc4
MD5 21de6c3a6440d917bdbb4b491191d9b2
SHA1 c63c300affe7147910dc4544d2d5f3029bf321a6
SHA512 dcd1c464ed36593b990e072940ab415804ef8076743015fff4939211e30e436beb7ce6af3072769abe0214f737cedb210d2b45e6e90da20dac54c3945b11575f
MD5 SHA1 SHA512

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memory/580-24-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/580-34-0x00000000003E0000-0x00000000003EA000-memory.dmp

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memory/580-35-0x0000000000A20000-0x0000000000A3E000-memory.dmp

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memory/580-25-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/580-36-0x00000000003F0000-0x00000000003FA000-memory.dmp

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memory/580-14-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/580-23-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/580-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

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memory/580-20-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/580-18-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/580-16-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/2348-5-0x0000000074970000-0x000000007505E000-memory.dmp

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memory/2348-26-0x0000000074970000-0x000000007505E000-memory.dmp

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memory/2348-6-0x00000000003D0000-0x000000000044E000-memory.dmp

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memory/2348-0-0x000000007497E000-0x000000007497F000-memory.dmp

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memory/2348-4-0x000000007497E000-0x000000007497F000-memory.dmp

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memory/2348-3-0x0000000000740000-0x000000000075E000-memory.dmp

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memory/2348-2-0x0000000074970000-0x000000007505E000-memory.dmp

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memory/2348-1-0x00000000013D0000-0x00000000014A4000-memory.dmp

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