nanocore | 9e60d8f8d14a520f023015e9b7e1254756a0bbebe294707cd705f5262b2e07b5 | Triage

Analysis

max time kernel
1790s
max time network
1802s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
26-04-2024 15:47

Sharing

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General

Target

Chrome.exe
Size

711KB
MD5

ec4bf11a6689c525a9c02342919b81d2
SHA1

3e762f4bcfe9325548b50349bdc270bdd8a111f3
SHA256

4480ba3f495510f75d218068c22164d98d275199ccdaf6e0f5b53cf355b8be80
SHA512

c23360725bb6dcbe23106f5206a8e1e97366e6ef4baea5c81fe7d0c50916ae7e19cc85a4b9545c7c723aef9fee5ff0e845700a7ee3626530da1a0739df5b716c
SSDEEP

12288:fX81XL3K8KysjJS+yeHMm9jA1Qcp8ujw6kVNZDXxVs4iP9ZoFD5rfIm:a+GesuiUNNkIFxIm

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

haxorbaba.duckdns.org:1604

Mutex

68d0d384-24c7-4c4a-b00a-25fe172797c1

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2016-05-25T14:42:31.650976636Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
true
clear_zone_identifier
false
connect_delay
3994
connection_port
1604
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
68d0d384-24c7-4c4a-b00a-25fe172797c1
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
haxorbaba.duckdns.org
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

Adds Run key to start application 2 TTPs 1 IoCs

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\UDP Subsystem = "C:\\Program Files (x86)\\UDP Subsystem\\udpss.exe"	Chrome.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	Chrome.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3952 set thread context of 1816	3952	Chrome.exe	83

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\UDP Subsystem\udpss.exe	Chrome.exe
File opened for modification	C:\Program Files (x86)\UDP Subsystem\udpss.exe	Chrome.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

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

Scheduled Task/Job

pid	Process
2948	schtasks.exe
3692	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1816	Chrome.exe
1816	Chrome.exe
1816	Chrome.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1816	Chrome.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3952	Chrome.exe
Token: SeDebugPrivilege	1816	Chrome.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 3952 wrote to memory of 1816	3952	Chrome.exe	83
PID 3952 wrote to memory of 1816	3952	Chrome.exe	83
PID 3952 wrote to memory of 1816	3952	Chrome.exe	83
PID 3952 wrote to memory of 1816	3952	Chrome.exe	83
PID 3952 wrote to memory of 1816	3952	Chrome.exe	83
PID 3952 wrote to memory of 1816	3952	Chrome.exe	83
PID 3952 wrote to memory of 1816	3952	Chrome.exe	83
PID 3952 wrote to memory of 1816	3952	Chrome.exe	83
PID 1816 wrote to memory of 2948	1816	Chrome.exe	84
PID 1816 wrote to memory of 2948	1816	Chrome.exe	84
PID 1816 wrote to memory of 2948	1816	Chrome.exe	84
PID 1816 wrote to memory of 3692	1816	Chrome.exe	86
PID 1816 wrote to memory of 3692	1816	Chrome.exe	86
PID 1816 wrote to memory of 3692	1816	Chrome.exe	86

C:\Users\Admin\AppData\Local\Temp\Chrome.exe
"C:\Users\Admin\AppData\Local\Temp\Chrome.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3952
- C:\Users\Admin\AppData\Local\Temp\Chrome.exe
  C:\Users\Admin\AppData\Local\Temp\Chrome.exe
  2⤵
  - Adds Run key to start application
  - Checks whether UAC is enabled
  - Drops file in Program Files directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1816
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "UDP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp31BE.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:2948
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "UDP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp31FE.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:3692

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

Persistence

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\Chrome.exe.log

Filesize
224B

MD5
c19eb8c8e7a40e6b987f9d2ee952996e

SHA1
6fc3049855bc9100643e162511673c6df0f28bfb

SHA256
677e9e30350df17e2bc20fa9f7d730e9f7cc6e870d6520a345f5f7dc5b31f58a

SHA512
860713b4a787c2189ed12a47d4b68b60ac00c7a253cae52dd4eb9276dacafeae3a81906b6d0742c8ecfdfaa255777c445beb7c2a532f3c677a9903237ac97596

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp31BE.tmp

Filesize
1KB

MD5
57ef41cc35a47d5ff922ec5a0d06aaa7

SHA1
0ae2172ca0e2578109243328ee57a68190252578

SHA256
ba13669de506ecfb43f5dc2b2acb6f392ad3d7daf9c9ad1c56359c6405de3a07

SHA512
58bdff3f27838934400b3bc21e69d8c2dfdcb0d5afc9ef5f4b0b5da83df603952abd6e804c3abcd50657f1c91dabc647d999f3d24b0b73990e3bd3abffddfa47

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp31FE.tmp

Filesize
1KB

MD5
c4aecdef99eba873119e79616df3f4b0

SHA1
b1b3af52655fb633eed909dfed05b64fbbfac37c

SHA256
24fd0d87bea36a024449a95f808aaa174e4ed9003cb8a427b67c02411b8a2e0b

SHA512
e3f44b07267fccf4f5abd4efe80f2b037ddadc4cb898bdfca9d21ac5d79fcac828950065c2060d3ce125ee971fc3096183afee5287ba9951fbbda7257d8ed8d4

Download Submit
memory/1816-3-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1816-7-0x00000000019D0000-0x00000000019E0000-memory.dmp

Filesize
64KB

Download
memory/1816-8-0x00000000753A0000-0x0000000075951000-memory.dmp

Filesize
5.7MB

Download
memory/1816-6-0x00000000753A0000-0x0000000075951000-memory.dmp

Filesize
5.7MB

Download
memory/1816-17-0x00000000019D0000-0x00000000019E0000-memory.dmp

Filesize
64KB

Download
memory/1816-18-0x00000000753A0000-0x0000000075951000-memory.dmp

Filesize
5.7MB

Download
memory/1816-19-0x00000000019D0000-0x00000000019E0000-memory.dmp

Filesize
64KB

Download
memory/1816-20-0x00000000019D0000-0x00000000019E0000-memory.dmp

Filesize
64KB

Download
memory/3952-9-0x00000000753A0000-0x0000000075951000-memory.dmp

Filesize
5.7MB

Download
memory/3952-2-0x00000000753A0000-0x0000000075951000-memory.dmp

Filesize
5.7MB

Download
memory/3952-1-0x0000000000EA0000-0x0000000000EB0000-memory.dmp

Filesize
64KB

Download
memory/3952-0-0x00000000753A0000-0x0000000075951000-memory.dmp

Filesize
5.7MB

Download