nanocore | ea298acdc3b2a9a2e60049398c4afe5c95e9daffc7b2fc3cd43d97190cd6d49e

Analysis

max time kernel
146s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
08-09-2024 03:38

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General

Target

ea298acdc3b2a9a2e60049398c4afe5c95e9daffc7b2fc3cd43d97190cd6d49e.exe
Size

1.4MB
MD5

db72711dd12e10fcfe2b7f86557c1ee1
SHA1

073ac7c915f778ab41ac1be2950b3b8121d7003d
SHA256

ea298acdc3b2a9a2e60049398c4afe5c95e9daffc7b2fc3cd43d97190cd6d49e
SHA512

1e2cc93f07eca93fa55f1de7deef933bace3789e4dd7e5eedcaaea212723749e8d763d5c1d282e355d2230b49765b5eae421f06159a6ba880cae0fb3e0c98760
SSDEEP

24576:6AHnh+eWsN3skA4RV1Hom2KXMmHaYDBNkmBRGEMdSR5ADIAsG/jJ45z:Nh+ZkldoPK8YaZSeIAmz

Score

10^/10

nanocore discovery evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

bnow.duckdns.org:4156

Mutex

fc4000c4-f8ec-42dc-a0ad-1edfd7548ceb

Attributes

activate_away_mode
true
backup_connection_host
bnow.duckdns.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2018-08-20T04:39:27.808758936Z
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
4156
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
fc4000c4-f8ec-42dc-a0ad-1edfd7548ceb
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
bnow.duckdns.org
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

Executes dropped EXE 2 IoCs

pid	Process
1820	igfxEM.exe
2320	igfxEM.exe

Loads dropped DLL 1 IoCs

pid	Process
1820	igfxEM.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	RegAsm.exe

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/files/0x0006000000019389-22.dat	autoit_exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2260 set thread context of 2548	2260	ea298acdc3b2a9a2e60049398c4afe5c95e9daffc7b2fc3cd43d97190cd6d49e.exe	30
PID 1820 set thread context of 2852	1820	igfxEM.exe	38
PID 2320 set thread context of 2428	2320	igfxEM.exe	42

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 9 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	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	igfxEM.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ea298acdc3b2a9a2e60049398c4afe5c95e9daffc7b2fc3cd43d97190cd6d49e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	igfxEM.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.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
2444	schtasks.exe
2900	schtasks.exe
1764	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2548	RegAsm.exe
2548	RegAsm.exe
2548	RegAsm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2548	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2548	RegAsm.exe

Suspicious use of WriteProcessMemory 47 IoCs

description	pid	Process	procid_target
PID 2260 wrote to memory of 2548	2260	ea298acdc3b2a9a2e60049398c4afe5c95e9daffc7b2fc3cd43d97190cd6d49e.exe	30
PID 2260 wrote to memory of 2548	2260	ea298acdc3b2a9a2e60049398c4afe5c95e9daffc7b2fc3cd43d97190cd6d49e.exe	30
PID 2260 wrote to memory of 2548	2260	ea298acdc3b2a9a2e60049398c4afe5c95e9daffc7b2fc3cd43d97190cd6d49e.exe	30
PID 2260 wrote to memory of 2548	2260	ea298acdc3b2a9a2e60049398c4afe5c95e9daffc7b2fc3cd43d97190cd6d49e.exe	30
PID 2260 wrote to memory of 2548	2260	ea298acdc3b2a9a2e60049398c4afe5c95e9daffc7b2fc3cd43d97190cd6d49e.exe	30
PID 2260 wrote to memory of 2548	2260	ea298acdc3b2a9a2e60049398c4afe5c95e9daffc7b2fc3cd43d97190cd6d49e.exe	30
PID 2260 wrote to memory of 2548	2260	ea298acdc3b2a9a2e60049398c4afe5c95e9daffc7b2fc3cd43d97190cd6d49e.exe	30
PID 2260 wrote to memory of 2548	2260	ea298acdc3b2a9a2e60049398c4afe5c95e9daffc7b2fc3cd43d97190cd6d49e.exe	30
PID 2260 wrote to memory of 2548	2260	ea298acdc3b2a9a2e60049398c4afe5c95e9daffc7b2fc3cd43d97190cd6d49e.exe	30
PID 2548 wrote to memory of 2444	2548	RegAsm.exe	31
PID 2548 wrote to memory of 2444	2548	RegAsm.exe	31
PID 2548 wrote to memory of 2444	2548	RegAsm.exe	31
PID 2548 wrote to memory of 2444	2548	RegAsm.exe	31
PID 2260 wrote to memory of 2900	2260	ea298acdc3b2a9a2e60049398c4afe5c95e9daffc7b2fc3cd43d97190cd6d49e.exe	34
PID 2260 wrote to memory of 2900	2260	ea298acdc3b2a9a2e60049398c4afe5c95e9daffc7b2fc3cd43d97190cd6d49e.exe	34
PID 2260 wrote to memory of 2900	2260	ea298acdc3b2a9a2e60049398c4afe5c95e9daffc7b2fc3cd43d97190cd6d49e.exe	34
PID 2260 wrote to memory of 2900	2260	ea298acdc3b2a9a2e60049398c4afe5c95e9daffc7b2fc3cd43d97190cd6d49e.exe	34
PID 3004 wrote to memory of 1820	3004	taskeng.exe	37
PID 3004 wrote to memory of 1820	3004	taskeng.exe	37
PID 3004 wrote to memory of 1820	3004	taskeng.exe	37
PID 3004 wrote to memory of 1820	3004	taskeng.exe	37
PID 1820 wrote to memory of 2852	1820	igfxEM.exe	38
PID 1820 wrote to memory of 2852	1820	igfxEM.exe	38
PID 1820 wrote to memory of 2852	1820	igfxEM.exe	38
PID 1820 wrote to memory of 2852	1820	igfxEM.exe	38
PID 1820 wrote to memory of 2852	1820	igfxEM.exe	38
PID 1820 wrote to memory of 2852	1820	igfxEM.exe	38
PID 1820 wrote to memory of 2852	1820	igfxEM.exe	38
PID 1820 wrote to memory of 2852	1820	igfxEM.exe	38
PID 1820 wrote to memory of 2852	1820	igfxEM.exe	38
PID 1820 wrote to memory of 1764	1820	igfxEM.exe	39
PID 1820 wrote to memory of 1764	1820	igfxEM.exe	39
PID 1820 wrote to memory of 1764	1820	igfxEM.exe	39
PID 1820 wrote to memory of 1764	1820	igfxEM.exe	39
PID 3004 wrote to memory of 2320	3004	taskeng.exe	41
PID 3004 wrote to memory of 2320	3004	taskeng.exe	41
PID 3004 wrote to memory of 2320	3004	taskeng.exe	41
PID 3004 wrote to memory of 2320	3004	taskeng.exe	41
PID 2320 wrote to memory of 2428	2320	igfxEM.exe	42
PID 2320 wrote to memory of 2428	2320	igfxEM.exe	42
PID 2320 wrote to memory of 2428	2320	igfxEM.exe	42
PID 2320 wrote to memory of 2428	2320	igfxEM.exe	42
PID 2320 wrote to memory of 2428	2320	igfxEM.exe	42
PID 2320 wrote to memory of 2428	2320	igfxEM.exe	42
PID 2320 wrote to memory of 2428	2320	igfxEM.exe	42
PID 2320 wrote to memory of 2428	2320	igfxEM.exe	42
PID 2320 wrote to memory of 2428	2320	igfxEM.exe	42

C:\Users\Admin\AppData\Local\Temp\ea298acdc3b2a9a2e60049398c4afe5c95e9daffc7b2fc3cd43d97190cd6d49e.exe
"C:\Users\Admin\AppData\Local\Temp\ea298acdc3b2a9a2e60049398c4afe5c95e9daffc7b2fc3cd43d97190cd6d49e.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2260
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
  2⤵
  - Checks whether UAC is enabled
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2548
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "SCSI Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpC6F7.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2444
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\SysWOW64\schtasks.exe" /create /tn azroles /tr "C:\Users\Admin\WinSAT\igfxEM.exe" /sc minute /mo 1 /F
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2900

C:\Windows\system32\taskeng.exe
taskeng.exe {EC57A974-9BDC-460E-9958-4EB0439B09CC} S-1-5-21-3290804112-2823094203-3137964600-1000:VORHPBAB\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:3004
- C:\Users\Admin\WinSAT\igfxEM.exe
  C:\Users\Admin\WinSAT\igfxEM.exe
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1820
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2852
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\SysWOW64\schtasks.exe" /create /tn azroles /tr "C:\Users\Admin\WinSAT\igfxEM.exe" /sc minute /mo 1 /F
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1764
- C:\Users\Admin\WinSAT\igfxEM.exe
  C:\Users\Admin\WinSAT\igfxEM.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2320
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2428

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

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\tmpC6F7.tmp

Filesize
1KB

MD5
c6f0625bf4c1cdfb699980c9243d3b22

SHA1
43de1fe580576935516327f17b5da0c656c72851

SHA256
8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576

SHA512
9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969

Download Submit
C:\Users\Admin\WinSAT\igfxEM.exe

Filesize
1.4MB

MD5
0e28c8611d1704623d02dfd96c86c773

SHA1
76ba5991a32f13a6c322b4247566d3d614c89997

SHA256
4791511dd9ce89bdde14ec3803df9a2af77c6061d5cfe219611dbcace192f783

SHA512
a61abc939cbf4ac2e4aeea82f7f0dae37268d4946835d12d45d7668d880da3c8fa75498332b617b86775cb32a67fd3acecff8fba72adab9f4d6c84e0045e9f77

Download Submit
C:\Users\Admin\azroles.lnk

Filesize
723B

MD5
599733bb3576bfd84cfa8da81e645b09

SHA1
4bc47f95b1adf7c3bd68574c3d62bdb356d3696d

SHA256
a74cf6c7b698b81a49de979f1d6a840ffc1d03c7353b56c8db6bfff8cb622bd6

SHA512
6d70f6fc456099c2f6204a078b51796f2c4d28fa33148c5593dbd4477e7509d1928a222832c6cfdcd61193349980f4222b593cc0225e465f8b84a6102bc04ba2

Download Submit
memory/2260-0-0x0000000000500000-0x0000000000501000-memory.dmp

Filesize
4KB

Download
memory/2548-10-0x0000000073C42000-0x0000000073C44000-memory.dmp

Filesize
8KB

Download
memory/2548-2-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2548-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2548-8-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2548-15-0x0000000073C42000-0x0000000073C44000-memory.dmp

Filesize
8KB

Download
memory/2548-16-0x0000000073C40000-0x00000000741EB000-memory.dmp

Filesize
5.7MB

Download
memory/2548-20-0x0000000073C40000-0x00000000741EB000-memory.dmp

Filesize
5.7MB

Download
memory/2548-9-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2548-1-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2852-29-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download