nanocore | b492a779314f8e5acadc326421167bd4ac3ed160d9ad85ce5bd02d71434caa00

Analysis

max time kernel
148s
max time network
149s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
17-11-2024 08:04

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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 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 2408 set thread context of 2548	2408	6287467283873,pdf.exe	32

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
2516	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2548	6287467283873,pdf.exe
2548	6287467283873,pdf.exe
2548	6287467283873,pdf.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2548	6287467283873,pdf.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2548	6287467283873,pdf.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2408 wrote to memory of 2516	2408	6287467283873,pdf.exe	30
PID 2408 wrote to memory of 2516	2408	6287467283873,pdf.exe	30
PID 2408 wrote to memory of 2516	2408	6287467283873,pdf.exe	30
PID 2408 wrote to memory of 2516	2408	6287467283873,pdf.exe	30
PID 2408 wrote to memory of 2548	2408	6287467283873,pdf.exe	32
PID 2408 wrote to memory of 2548	2408	6287467283873,pdf.exe	32
PID 2408 wrote to memory of 2548	2408	6287467283873,pdf.exe	32
PID 2408 wrote to memory of 2548	2408	6287467283873,pdf.exe	32
PID 2408 wrote to memory of 2548	2408	6287467283873,pdf.exe	32
PID 2408 wrote to memory of 2548	2408	6287467283873,pdf.exe	32
PID 2408 wrote to memory of 2548	2408	6287467283873,pdf.exe	32
PID 2408 wrote to memory of 2548	2408	6287467283873,pdf.exe	32
PID 2408 wrote to memory of 2548	2408	6287467283873,pdf.exe	32

C:\Users\Admin\AppData\Local\Temp\6287467283873,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\6287467283873,pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2408
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UBdIGyYte" /XML "C:\Users\Admin\AppData\Local\Temp\tmp925.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2516
- 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:2548

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp925.tmp

Filesize
1KB

MD5
ebb9014af332a3a8dc94f466b9a821c5

SHA1
e2392cafc765b1d454d403c035ae56a23085ff98

SHA256
e471ce09c293c0137c8e068c3eed25116601c266959f50fc0c67131f9f2f8ceb

SHA512
109927c3a668b9421ff9cd2dd66bbf1b1f32799cf927f49d9d20b9716ad9d4cf3afa2bf1270f1b38ac8bc88fe81a67b6c26539e819ecb606f60084a51016f4d7

Download Submit
memory/2408-0-0x0000000074D71000-0x0000000074D72000-memory.dmp

Filesize
4KB

Download
memory/2408-1-0x0000000074D70000-0x000000007531B000-memory.dmp

Filesize
5.7MB

Download
memory/2408-2-0x0000000074D70000-0x000000007531B000-memory.dmp

Filesize
5.7MB

Download
memory/2408-3-0x0000000074D70000-0x000000007531B000-memory.dmp

Filesize
5.7MB

Download
memory/2408-24-0x0000000074D70000-0x000000007531B000-memory.dmp

Filesize
5.7MB

Download
memory/2548-19-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2548-23-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2548-17-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2548-15-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2548-21-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2548-13-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2548-11-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2548-25-0x0000000074D70000-0x000000007531B000-memory.dmp

Filesize
5.7MB

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

Filesize
224KB

Download
memory/2548-27-0x0000000074D70000-0x000000007531B000-memory.dmp

Filesize
5.7MB

Download
memory/2548-28-0x0000000074D70000-0x000000007531B000-memory.dmp

Filesize
5.7MB

Download
memory/2548-29-0x0000000074D70000-0x000000007531B000-memory.dmp

Filesize
5.7MB

Download