nanocore | b492a779314f8e5acadc326421167bd4ac3ed160d9ad85ce5bd02d71434caa00

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
28-12-2024 23:37

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General

Target

6287467283873,pdf.exe
Size

392KB
MD5

7d05704659c455feb3db77a62fe601bb
SHA1

803b4d7d1a5a75c1afaa715477a4250b031e8ac2
SHA256

5f04144eb435bf9f55a34c4ff65c42438249640b7cf8228cd9a5cbc84f291d64
SHA512

1632acabaeec7a10ed504f3a75dd065b7238ffa086431b82140f0788ce8769fd31b5087bee352914f56e226ce2c79794d6814900127e8efb92a0a73111a402a5
SSDEEP

6144:vdxgw0ffdLQt2OOn6RGDbvvpQrSUQ0vK1PjxJ2lwipq17:Vxgw0ffdLzOhRwvmrScKlmlnq17

Score

10^/10

nanocore discovery evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

aboki0419.duckdns.org:9900

abokijob.hopto.org:9900

Mutex

a0c4817f-89a6-4daf-be72-4cec2c6ad4d3

Attributes

activate_away_mode
true
backup_connection_host
abokijob.hopto.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2019-09-24T13:12:11.549725036Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
9900
default_group
1001
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
a0c4817f-89a6-4daf-be72-4cec2c6ad4d3
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
aboki0419.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
Nanocore family
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-1-5-21-3442511616-637977696-3186306149-1000\Control Panel\International\Geo\Nation	6287467283873,pdf.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	6287467283873,pdf.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1128 set thread context of 3364	1128	6287467283873,pdf.exe	93

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 3 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	6287467283873,pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6287467283873,pdf.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
4392	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3364	6287467283873,pdf.exe
3364	6287467283873,pdf.exe
3364	6287467283873,pdf.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3364	6287467283873,pdf.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3364	6287467283873,pdf.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1128 wrote to memory of 4392	1128	6287467283873,pdf.exe	91
PID 1128 wrote to memory of 4392	1128	6287467283873,pdf.exe	91
PID 1128 wrote to memory of 4392	1128	6287467283873,pdf.exe	91
PID 1128 wrote to memory of 3364	1128	6287467283873,pdf.exe	93
PID 1128 wrote to memory of 3364	1128	6287467283873,pdf.exe	93
PID 1128 wrote to memory of 3364	1128	6287467283873,pdf.exe	93
PID 1128 wrote to memory of 3364	1128	6287467283873,pdf.exe	93
PID 1128 wrote to memory of 3364	1128	6287467283873,pdf.exe	93
PID 1128 wrote to memory of 3364	1128	6287467283873,pdf.exe	93
PID 1128 wrote to memory of 3364	1128	6287467283873,pdf.exe	93
PID 1128 wrote to memory of 3364	1128	6287467283873,pdf.exe	93

C:\Users\Admin\AppData\Local\Temp\6287467283873,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\6287467283873,pdf.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1128
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UBdIGyYte" /XML "C:\Users\Admin\AppData\Local\Temp\tmp75B8.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:4392
- C:\Users\Admin\AppData\Local\Temp\6287467283873,pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\6287467283873,pdf.exe"
  2⤵
  - Checks whether UAC is enabled
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  PID:3364

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

Query Registry

T1012

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

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\6287467283873,pdf.exe.log

Filesize
500B

MD5
f09b18de068f5d3b00bf97d8c6b28542

SHA1
41b4356341b9ba28711ca911ae47983e26415626

SHA256
e431fc364d7fb15cf7679b139ef48208190a8ac3809d8f05ad5504e8d18599a1

SHA512
90b77b97c54ab2d2fe9e1a36ad124f9f9461e0facf1868ad61b34e8e0ebd05dc46ad0b160d879b457d943e2904671059cebb499e1a922e7064c027f1fb22afc0

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp75B8.tmp

Filesize
1KB

MD5
fb5c205d821eee0aa9e00a15863a4377

SHA1
e1e0b8a407232e392918f9158b0f7c60fa4a0fe3

SHA256
a627242c5a1665aa282a974d18042aea26ac1521b5b3f54258b51a0f12a0aa64

SHA512
2c579d3266d363dcc292e19a60469bfb6a01cad034aff4bc307adea3ed77fbe1ba89be84298b1d7e7f65a400b80af3917ab4ab9ad5b1055f2dc506a7e3a24f09

Download Submit
memory/1128-3-0x00000000750E2000-0x00000000750E3000-memory.dmp

Filesize
4KB

Download
memory/1128-0-0x00000000750E2000-0x00000000750E3000-memory.dmp

Filesize
4KB

Download
memory/1128-4-0x00000000750E0000-0x0000000075691000-memory.dmp

Filesize
5.7MB

Download
memory/1128-2-0x00000000750E0000-0x0000000075691000-memory.dmp

Filesize
5.7MB

Download
memory/1128-13-0x00000000750E0000-0x0000000075691000-memory.dmp

Filesize
5.7MB

Download
memory/1128-1-0x00000000750E0000-0x0000000075691000-memory.dmp

Filesize
5.7MB

Download
memory/3364-10-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3364-14-0x00000000750E0000-0x0000000075691000-memory.dmp

Filesize
5.7MB

Download
memory/3364-15-0x00000000750E0000-0x0000000075691000-memory.dmp

Filesize
5.7MB

Download
memory/3364-16-0x00000000750E0000-0x0000000075691000-memory.dmp

Filesize
5.7MB

Download
memory/3364-18-0x00000000750E0000-0x0000000075691000-memory.dmp

Filesize
5.7MB

Download
memory/3364-19-0x00000000750E0000-0x0000000075691000-memory.dmp

Filesize
5.7MB

Download
memory/3364-20-0x00000000750E0000-0x0000000075691000-memory.dmp

Filesize
5.7MB

Download