nanocore | 6a19ede919d3ef32c74ddbcefb4bfd3ef61ba2a86739978ed337639193678edb

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-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
728	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Control Panel\International\Geo\Nation	order details.XLSx.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\DHCP Service = "C:\\Program Files (x86)\\DHCP Service\\dhcpsvc.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 1464 set thread context of 4548	1464	order details.XLSx.exe	104

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\DHCP Service\dhcpsvc.exe	order details.XLSx.exe
File opened for modification	C:\Program Files (x86)\DHCP Service\dhcpsvc.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	powershell.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	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

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
3648	schtasks.exe
1332	schtasks.exe
5056	schtasks.exe

Suspicious behavior: EnumeratesProcesses 39 IoCs

pid	Process
1464	order details.XLSx.exe
1464	order details.XLSx.exe
1464	order details.XLSx.exe
1464	order details.XLSx.exe
1464	order details.XLSx.exe
1464	order details.XLSx.exe
1464	order details.XLSx.exe
1464	order details.XLSx.exe
1464	order details.XLSx.exe
1464	order details.XLSx.exe
1464	order details.XLSx.exe
1464	order details.XLSx.exe
1464	order details.XLSx.exe
1464	order details.XLSx.exe
1464	order details.XLSx.exe
1464	order details.XLSx.exe
1464	order details.XLSx.exe
1464	order details.XLSx.exe
1464	order details.XLSx.exe
1464	order details.XLSx.exe
1464	order details.XLSx.exe
1464	order details.XLSx.exe
1464	order details.XLSx.exe
1464	order details.XLSx.exe
1464	order details.XLSx.exe
1464	order details.XLSx.exe
1464	order details.XLSx.exe
1464	order details.XLSx.exe
1464	order details.XLSx.exe
1464	order details.XLSx.exe
1464	order details.XLSx.exe
728	powershell.exe
728	powershell.exe
1464	order details.XLSx.exe
1464	order details.XLSx.exe
1464	order details.XLSx.exe
4548	order details.XLSx.exe
4548	order details.XLSx.exe
4548	order details.XLSx.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4548	order details.XLSx.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1464	order details.XLSx.exe
Token: SeDebugPrivilege	728	powershell.exe
Token: SeDebugPrivilege	4548	order details.XLSx.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1464 wrote to memory of 728	1464	order details.XLSx.exe	99
PID 1464 wrote to memory of 728	1464	order details.XLSx.exe	99
PID 1464 wrote to memory of 728	1464	order details.XLSx.exe	99
PID 1464 wrote to memory of 5056	1464	order details.XLSx.exe	101
PID 1464 wrote to memory of 5056	1464	order details.XLSx.exe	101
PID 1464 wrote to memory of 5056	1464	order details.XLSx.exe	101
PID 1464 wrote to memory of 4548	1464	order details.XLSx.exe	104
PID 1464 wrote to memory of 4548	1464	order details.XLSx.exe	104
PID 1464 wrote to memory of 4548	1464	order details.XLSx.exe	104
PID 1464 wrote to memory of 4548	1464	order details.XLSx.exe	104
PID 1464 wrote to memory of 4548	1464	order details.XLSx.exe	104
PID 1464 wrote to memory of 4548	1464	order details.XLSx.exe	104
PID 1464 wrote to memory of 4548	1464	order details.XLSx.exe	104
PID 1464 wrote to memory of 4548	1464	order details.XLSx.exe	104
PID 4548 wrote to memory of 3648	4548	order details.XLSx.exe	105
PID 4548 wrote to memory of 3648	4548	order details.XLSx.exe	105
PID 4548 wrote to memory of 3648	4548	order details.XLSx.exe	105
PID 4548 wrote to memory of 1332	4548	order details.XLSx.exe	107
PID 4548 wrote to memory of 1332	4548	order details.XLSx.exe	107
PID 4548 wrote to memory of 1332	4548	order details.XLSx.exe	107

C:\Users\Admin\AppData\Local\Temp\order details.XLSx.exe
"C:\Users\Admin\AppData\Local\Temp\order details.XLSx.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1464
- 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:728
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SrVRkjAnDPHx" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD8D7.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:5056
- 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:4548
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DHCP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpDC32.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:3648
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DHCP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpDC62.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1332

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

Query Registry

T1012

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

order details.XLSx.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\order details.XLSx.exe.log
Size 1KB
SHA256 7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982
MD5 8ec831f3e3a3f77e4a7b9cd32b48384c
SHA1 d83f09fd87c5bd86e045873c231c14836e76a05c
SHA512 26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3
MD5 SHA1 SHA512

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__PSScriptPolicyTest_rt05icz0.y5v.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rt05icz0.y5v.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

Submit Download

tmpD8D7.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpD8D7.tmp
Size 1KB
SHA256 df7b95aa353a9856a9377e81ce032f7b4d510d6b513f7d7ad710ebdc20d6370e
MD5 f2fe29ecd2b3f20effbc007d13553532
SHA1 14c7ddab5aa740561d3be801408c99b11bd5c281
SHA512 5d9d4b7e8875d1b0ba2fde3107edd5d61488d2d594c8b4f9ea2ed1a4bfe7ae28369e318d2d2236e2357a560d925a3891b4c86999c2718e85300320db73482df8
MD5 SHA1 SHA512

Submit Download

tmpDC32.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpDC32.tmp
Size 1KB
SHA256 04e22bd38715ac696398a4238cd11c0e6d2ed715ca1fd8c00004882d72ed1571
MD5 a40bd5ec4bceb25e418af60f17f71bf7
SHA1 b6e88de77f429b7cb2e2e88a11e9eb1f710949d3
SHA512 2a9cb9128282e24258d65c89e6ebb5c8bfffb48a221d4fd1ede225a0f35b2d925ec92635107c699511fb16c585aa117cbe4bb2dc6ce2b648908c6faa4a46ada7
MD5 SHA1 SHA512

Submit Download

tmpDC62.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpDC62.tmp
Size 1KB
SHA256 39b16b3a00b6b43c6820357127228c0768a577153014ce7b0ea3c585244dc08b
MD5 7f4b37265a0a4b0fea67999d11d911e8
SHA1 1b8e13e6a27c3768c30cf713b79eaa8a757e1349
SHA512 ef97ccfb663555aedc7fdc4b3ac4cd6536c80a778b4ec3bc6124a09544733988de1dac1e6a3714b0d6e8713e3523e0732d5dfcf674f2c5e1f3eadacb0c8e5e03
MD5 SHA1 SHA512

Submit Download

memory/728-34-0x00000000068D0000-0x0000000006902000-memory.dmp

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memory/728-45-0x00000000068B0000-0x00000000068CE000-memory.dmp

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memory/728-61-0x0000000074D70000-0x0000000075520000-memory.dmp

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memory/728-57-0x0000000007940000-0x0000000007948000-memory.dmp

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memory/728-56-0x0000000007960000-0x000000000797A000-memory.dmp

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memory/728-55-0x0000000007860000-0x0000000007874000-memory.dmp

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memory/728-14-0x0000000001230000-0x0000000001266000-memory.dmp

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memory/728-15-0x0000000074D70000-0x0000000075520000-memory.dmp

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memory/728-16-0x0000000005630000-0x0000000005C58000-memory.dmp

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memory/728-17-0x0000000074D70000-0x0000000075520000-memory.dmp

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memory/728-18-0x0000000005250000-0x0000000005272000-memory.dmp

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memory/728-20-0x0000000005C60000-0x0000000005CC6000-memory.dmp

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memory/728-19-0x00000000053F0000-0x0000000005456000-memory.dmp

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memory/728-54-0x0000000007850000-0x000000000785E000-memory.dmp

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memory/728-27-0x0000000074D70000-0x0000000075520000-memory.dmp

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memory/728-26-0x0000000005CD0000-0x0000000006024000-memory.dmp

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memory/728-32-0x0000000006300000-0x000000000631E000-memory.dmp

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memory/728-47-0x0000000007510000-0x00000000075B3000-memory.dmp

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memory/728-35-0x000000006F5C0000-0x000000006F60C000-memory.dmp

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memory/728-53-0x0000000007820000-0x0000000007831000-memory.dmp

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memory/728-52-0x00000000078A0000-0x0000000007936000-memory.dmp

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memory/728-46-0x0000000074D70000-0x0000000075520000-memory.dmp

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memory/728-33-0x00000000064E0000-0x000000000652C000-memory.dmp

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memory/728-48-0x0000000074D70000-0x0000000075520000-memory.dmp

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memory/728-49-0x0000000007C70000-0x00000000082EA000-memory.dmp

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memory/728-50-0x0000000007620000-0x000000000763A000-memory.dmp

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memory/728-51-0x0000000007690000-0x000000000769A000-memory.dmp

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memory/1464-1-0x0000000000850000-0x0000000000924000-memory.dmp

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memory/1464-5-0x0000000005480000-0x000000000548A000-memory.dmp

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memory/1464-4-0x0000000074D70000-0x0000000075520000-memory.dmp

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memory/1464-10-0x0000000004D20000-0x0000000004D9E000-memory.dmp

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memory/1464-9-0x0000000074D70000-0x0000000075520000-memory.dmp

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memory/1464-8-0x0000000074D7E000-0x0000000074D7F000-memory.dmp

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memory/1464-0-0x0000000074D7E000-0x0000000074D7F000-memory.dmp

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memory/1464-7-0x00000000058F0000-0x000000000590E000-memory.dmp

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memory/1464-3-0x0000000005380000-0x0000000005412000-memory.dmp

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memory/1464-6-0x0000000005620000-0x00000000056BC000-memory.dmp

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memory/1464-66-0x0000000074D70000-0x0000000075520000-memory.dmp

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memory/1464-2-0x0000000005930000-0x0000000005ED4000-memory.dmp

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memory/4548-63-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/4548-74-0x0000000004EC0000-0x0000000004ECA000-memory.dmp

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memory/4548-75-0x0000000005480000-0x000000000549E000-memory.dmp

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memory/4548-76-0x00000000060D0000-0x00000000060DA000-memory.dmp

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