nanocore | 075e22ceed2efd644ae7b4f5a9232d7fc902c6b89d8b7314f442f358a23981b1

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
31/03/2024, 00:23

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General

Target
483db1810892de080346e097caf9635b_JaffaCakes118.exe
Size 512KB
Sample240331-apmtxsab9w
SHA256 075e22ceed2efd644ae7b4f5a9232d7fc902c6b89d8b7314f442f358a23981b1
MD5 483db1810892de080346e097caf9635b
SHA1 df73dc447321aa7948fda3937ac625506ce4c56c
SHA512 49dd04419689cfeeda9717aaa35f31288a950e9cd5b143c24c0b61dcaade3a761ed445bab9fb28f1cc1d7ea7cf0f9b888cd1fa488f370a6e8ce58414d6eaad9e
SSDEEP 6144:A+Lxb7FOWwtrtyYVLi1D28Br4lSSiEim7OZ:A+fOWwmmi1DRaSSiEiSO
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nanocore evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

bestzones.ddns.net:7777

Mutex

483b7f1c-9ce3-4fd8-a962-61a5f5a4c924

Attributes

activate_away_mode
true
backup_connection_host
bestzones.ddns.net
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2018-06-01T21:31:53.630408036Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
7777
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
483b7f1c-9ce3-4fd8-a962-61a5f5a4c924
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
bestzones.ddns.net
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
true
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

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-1-5-21-3270530367-132075249-2153716227-1000\Control Panel\International\Geo\Nation	483db1810892de080346e097caf9635b_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
744	tmp.exe
5036	svhost.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	tmp.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	483db1810892de080346e097caf9635b_JaffaCakes118.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	483db1810892de080346e097caf9635b_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1120 set thread context of 5036	1120	483db1810892de080346e097caf9635b_JaffaCakes118.exe	102

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly	483db1810892de080346e097caf9635b_JaffaCakes118.exe
File created	C:\Windows\assembly\Desktop.ini	483db1810892de080346e097caf9635b_JaffaCakes118.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	483db1810892de080346e097caf9635b_JaffaCakes118.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3332	timeout.exe

NTFS ADS 1 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\GoogleUpdate\google.exe:Zone.Identifier	cmd.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
1120	483db1810892de080346e097caf9635b_JaffaCakes118.exe
1120	483db1810892de080346e097caf9635b_JaffaCakes118.exe
1120	483db1810892de080346e097caf9635b_JaffaCakes118.exe
1120	483db1810892de080346e097caf9635b_JaffaCakes118.exe
1120	483db1810892de080346e097caf9635b_JaffaCakes118.exe
744	tmp.exe
744	tmp.exe
744	tmp.exe
1120	483db1810892de080346e097caf9635b_JaffaCakes118.exe
1120	483db1810892de080346e097caf9635b_JaffaCakes118.exe
1120	483db1810892de080346e097caf9635b_JaffaCakes118.exe
1120	483db1810892de080346e097caf9635b_JaffaCakes118.exe
1120	483db1810892de080346e097caf9635b_JaffaCakes118.exe
1120	483db1810892de080346e097caf9635b_JaffaCakes118.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
744	tmp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1120	483db1810892de080346e097caf9635b_JaffaCakes118.exe
Token: SeDebugPrivilege	744	tmp.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1120 wrote to memory of 4988	1120	483db1810892de080346e097caf9635b_JaffaCakes118.exe	98
PID 1120 wrote to memory of 4988	1120	483db1810892de080346e097caf9635b_JaffaCakes118.exe	98
PID 1120 wrote to memory of 4988	1120	483db1810892de080346e097caf9635b_JaffaCakes118.exe	98
PID 4988 wrote to memory of 4964	4988	cmd.exe	100
PID 4988 wrote to memory of 4964	4988	cmd.exe	100
PID 4988 wrote to memory of 4964	4988	cmd.exe	100
PID 1120 wrote to memory of 744	1120	483db1810892de080346e097caf9635b_JaffaCakes118.exe	101
PID 1120 wrote to memory of 744	1120	483db1810892de080346e097caf9635b_JaffaCakes118.exe	101
PID 1120 wrote to memory of 744	1120	483db1810892de080346e097caf9635b_JaffaCakes118.exe	101
PID 1120 wrote to memory of 5036	1120	483db1810892de080346e097caf9635b_JaffaCakes118.exe	102
PID 1120 wrote to memory of 5036	1120	483db1810892de080346e097caf9635b_JaffaCakes118.exe	102
PID 1120 wrote to memory of 5036	1120	483db1810892de080346e097caf9635b_JaffaCakes118.exe	102
PID 1120 wrote to memory of 5036	1120	483db1810892de080346e097caf9635b_JaffaCakes118.exe	102
PID 1120 wrote to memory of 5036	1120	483db1810892de080346e097caf9635b_JaffaCakes118.exe	102
PID 1120 wrote to memory of 5036	1120	483db1810892de080346e097caf9635b_JaffaCakes118.exe	102
PID 1120 wrote to memory of 5036	1120	483db1810892de080346e097caf9635b_JaffaCakes118.exe	102
PID 1120 wrote to memory of 5036	1120	483db1810892de080346e097caf9635b_JaffaCakes118.exe	102
PID 1120 wrote to memory of 1420	1120	483db1810892de080346e097caf9635b_JaffaCakes118.exe	103
PID 1120 wrote to memory of 1420	1120	483db1810892de080346e097caf9635b_JaffaCakes118.exe	103
PID 1120 wrote to memory of 1420	1120	483db1810892de080346e097caf9635b_JaffaCakes118.exe	103
PID 1420 wrote to memory of 3332	1420	cmd.exe	105
PID 1420 wrote to memory of 3332	1420	cmd.exe	105
PID 1420 wrote to memory of 3332	1420	cmd.exe	105

C:\Users\Admin\AppData\Local\Temp\483db1810892de080346e097caf9635b_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\483db1810892de080346e097caf9635b_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Drops desktop.ini file(s)
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1120
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe"
  2⤵
  - NTFS ADS
  - Suspicious use of WriteProcessMemory
  PID:4988
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows" /v Load /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\GoogleUpdate\google.exe.lnk" /f
    3⤵
    PID:4964
- C:\Users\Admin\AppData\Roaming\tmp.exe
  "C:\Users\Admin\AppData\Roaming\tmp.exe"
  2⤵
  - Executes dropped EXE
  - Checks whether UAC is enabled
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:744
- C:\Users\Admin\AppData\Local\Temp\svhost.exe
  "C:\Users\Admin\AppData\Local\Temp\svhost.exe"
  2⤵
  - Executes dropped EXE
  PID:5036
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\GoogleUpdate\google.exe.bat
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1420
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 600
    3⤵
    - Delays execution with timeout.exe
    PID:3332

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

svhost.exe

Path C:\Users\Admin\AppData\Local\Temp\svhost.exe
Size 89KB
SHA256 331487446653875bf1e628b797a5283e40056654f7ff328eafbe39b0304480d3
MD5 84c42d0f2c1ae761bef884638bc1eacd
SHA1 4353881e7f4e9c7610f4e0489183b55bb58bb574
SHA512 43c307a38faa3a4b311597034cf75035a4434a1024d2a54e867e6a94b53b677898d71a858438d119000e872a7a6e92c5b31d277a8c207a94375ed4fd3c7beb87
SSDEEP 1536:H96ZJwk1oO+huJs4HN0Auo7G+DKSOanlgVO3GGLJ:IMFCHV1G+DKSOanlEud
MD5 SHA1 SHA512 SSDEEP

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google.exe

Path C:\Users\Admin\AppData\Roaming\GoogleUpdate\google.exe
Size 512KB
SHA256 075e22ceed2efd644ae7b4f5a9232d7fc902c6b89d8b7314f442f358a23981b1
MD5 483db1810892de080346e097caf9635b
SHA1 df73dc447321aa7948fda3937ac625506ce4c56c
SHA512 49dd04419689cfeeda9717aaa35f31288a950e9cd5b143c24c0b61dcaade3a761ed445bab9fb28f1cc1d7ea7cf0f9b888cd1fa488f370a6e8ce58414d6eaad9e
SSDEEP 6144:A+Lxb7FOWwtrtyYVLi1D28Br4lSSiEim7OZ:A+fOWwmmi1DRaSSiEiSO
MD5 SHA1 SHA512 SSDEEP

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google.exe.bat

Path C:\Users\Admin\AppData\Roaming\GoogleUpdate\google.exe.bat
Size 196B
SHA256 8a9f9661180de1bd9e336cb43332d54889436d7e3ad0b5ec6a95092a5119c751
MD5 88424a200fa647f4c8f490c060f0ae58
SHA1 df6746b13f5470db20417409bf8a05c261a9862f
SHA512 4d1b0a1ae2fb2df7203cc60f18b1b26b19a89b78e0f649c0b1ab690be825e34d1620419c34fcf8d4f8a8acfd02534faf03850a98fa9225a76577cd27e906601f
MD5 SHA1 SHA512

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tmp.exe

Path C:\Users\Admin\AppData\Roaming\tmp.exe
Size 202KB
SHA256 8b0f393c0230a6525737d254550d5b5ec5c2dcc649bc83b19618a5a8e8531827
MD5 268595a29afb27199c59ea9e3e0d4bac
SHA1 e6d75af5d59d250de5138e4dd24562793d2d3af0
SHA512 2d7efc244ede853487b989ca79f89c830a884d9feb15d9b7161d35e8242771d0d69b30cdeb7216c4e62ad778012da35ddcb9fa91e3c1208efee954a04aa10663
SSDEEP 6144:wLV6Bta6dtJmakIM5DzknvODrnm3nsBY0koBHoh:wLV6Btpmkq4nvynm0Y3yoh
MD5 SHA1 SHA512 SSDEEP

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memory/744-23-0x00000000752D0000-0x0000000075881000-memory.dmp

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memory/744-26-0x00000000013C0000-0x00000000013D0000-memory.dmp

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memory/744-27-0x00000000752D0000-0x0000000075881000-memory.dmp

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memory/744-39-0x00000000752D0000-0x0000000075881000-memory.dmp

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memory/744-38-0x00000000013C0000-0x00000000013D0000-memory.dmp

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memory/744-33-0x00000000013C0000-0x00000000013D0000-memory.dmp

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memory/1120-37-0x00000000752D0000-0x0000000075881000-memory.dmp

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memory/1120-4-0x0000000001960000-0x0000000001970000-memory.dmp

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memory/1120-1-0x0000000001960000-0x0000000001970000-memory.dmp

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memory/1120-2-0x00000000752D0000-0x0000000075881000-memory.dmp

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memory/1120-3-0x00000000752D0000-0x0000000075881000-memory.dmp

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memory/1120-0-0x00000000752D0000-0x0000000075881000-memory.dmp

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memory/5036-22-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/5036-36-0x00000000752D0000-0x0000000075881000-memory.dmp

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memory/5036-29-0x0000000001310000-0x0000000001320000-memory.dmp

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memory/5036-32-0x00000000752D0000-0x0000000075881000-memory.dmp

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