nanocore | 7cd5e61342f0cfa2fe97d0db905e8c012a2d6d32e410df84e865f8460d2c4b00

Analysis

max time kernel
151s
max time network
154s
platform
windows10_x64
resource
win10-en-20210920
submitted
05/10/2021, 06:58

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General

Target
DHL_Ship_form.exe
Size 1.1MB
Sample211005-hrhxrahffl
SHA256 7cd5e61342f0cfa2fe97d0db905e8c012a2d6d32e410df84e865f8460d2c4b00
MD5 1abe6ef320dc62c68bd87a81b6061275
SHA1 abb0a5a1cfc21468c31907b9bac11e2e10957950
SHA512 4728d424b97543e9895cffd3f46b4f8ffaa1e114049ca58645aa5572be0fddb9437d99b5f509481195ee8dc4604c049f19a73423638334b5c6761aea677c827b
MD5 SHA1 SHA512

Score

10^/10

nanocore agilenet evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

pastorcc.duckdns.org:2333
127.0.0.1:2333

Mutex

bd8ab434-831a-4995-a413-85f7678b5d75

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2021-07-12T14:33:29.396258336Z
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
2333
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
bd8ab434-831a-4995-a413-85f7678b5d75
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
pastorcc.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
4012	DGFCGVKJL.exe
4364	InstallUtil.exe

Obfuscated with Agile.Net obfuscator 2 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

resource	yara_rule
behavioral2/memory/3600-121-0x0000000006E20000-0x0000000006E41000-memory.dmp	agile_net
behavioral2/memory/4012-141-0x0000000004EF0000-0x00000000053EE000-memory.dmp	agile_net

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows\CurrentVersion\Run	reg.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2481030822-2828258191-1606198294-1000\Software\Microsoft\Windows\CurrentVersion\Run\LKJGFDXCG = "C:\\Users\\Admin\\AppData\\Roaming\\DGFCGVKJL.exe"	reg.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	InstallUtil.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4012 set thread context of 4364	4012	DGFCGVKJL.exe	74

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task

T1053

pid	Process
4612	schtasks.exe

Suspicious behavior: EnumeratesProcesses 22 IoCs

pid	Process
3600	DHL_Ship_form.exe
3600	DHL_Ship_form.exe
3600	DHL_Ship_form.exe
3600	DHL_Ship_form.exe
3600	DHL_Ship_form.exe
3600	DHL_Ship_form.exe
3600	DHL_Ship_form.exe
3600	DHL_Ship_form.exe
3600	DHL_Ship_form.exe
3600	DHL_Ship_form.exe
3600	DHL_Ship_form.exe
3600	DHL_Ship_form.exe
3600	DHL_Ship_form.exe
3600	DHL_Ship_form.exe
3600	DHL_Ship_form.exe
3600	DHL_Ship_form.exe
3600	DHL_Ship_form.exe
4012	DGFCGVKJL.exe
4012	DGFCGVKJL.exe
4364	InstallUtil.exe
4364	InstallUtil.exe
4364	InstallUtil.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4364	InstallUtil.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3600	DHL_Ship_form.exe
Token: SeDebugPrivilege	4012	DGFCGVKJL.exe
Token: SeDebugPrivilege	4364	InstallUtil.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 3600 wrote to memory of 4324	3600	DHL_Ship_form.exe	70
PID 3600 wrote to memory of 4324	3600	DHL_Ship_form.exe	70
PID 3600 wrote to memory of 4324	3600	DHL_Ship_form.exe	70
PID 4324 wrote to memory of 4284	4324	cmd.exe	72
PID 4324 wrote to memory of 4284	4324	cmd.exe	72
PID 4324 wrote to memory of 4284	4324	cmd.exe	72
PID 3600 wrote to memory of 4012	3600	DHL_Ship_form.exe	73
PID 3600 wrote to memory of 4012	3600	DHL_Ship_form.exe	73
PID 3600 wrote to memory of 4012	3600	DHL_Ship_form.exe	73
PID 4012 wrote to memory of 4364	4012	DGFCGVKJL.exe	74
PID 4012 wrote to memory of 4364	4012	DGFCGVKJL.exe	74
PID 4012 wrote to memory of 4364	4012	DGFCGVKJL.exe	74
PID 4012 wrote to memory of 4364	4012	DGFCGVKJL.exe	74
PID 4012 wrote to memory of 4364	4012	DGFCGVKJL.exe	74
PID 4012 wrote to memory of 4364	4012	DGFCGVKJL.exe	74
PID 4012 wrote to memory of 4364	4012	DGFCGVKJL.exe	74
PID 4012 wrote to memory of 4364	4012	DGFCGVKJL.exe	74
PID 4364 wrote to memory of 4612	4364	InstallUtil.exe	75
PID 4364 wrote to memory of 4612	4364	InstallUtil.exe	75
PID 4364 wrote to memory of 4612	4364	InstallUtil.exe	75

C:\Users\Admin\AppData\Local\Temp\DHL_Ship_form.exe
"C:\Users\Admin\AppData\Local\Temp\DHL_Ship_form.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3600
- C:\Windows\SysWOW64\cmd.exe
  "cmd.exe" /c REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "LKJGFDXCG" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\DGFCGVKJL.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4324
- - C:\Windows\SysWOW64\reg.exe
    REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /f /v "LKJGFDXCG" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\DGFCGVKJL.exe"
    3⤵
    - Adds Run key to start application
    PID:4284
- C:\Users\Admin\AppData\Roaming\DGFCGVKJL.exe
  "C:\Users\Admin\AppData\Roaming\DGFCGVKJL.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4012
- - C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe
    "C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"
    3⤵
    - Executes dropped EXE
    - Checks whether UAC is enabled
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4364
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "SCSI Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD596.tmp"
      4⤵
      Creates scheduled task(s)
      PID:4612

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3600-121-0x0000000006E20000-0x0000000006E41000-memory.dmp

Download

memory/3600-122-0x0000000006ED0000-0x0000000006ED1000-memory.dmp

Download

memory/3600-123-0x0000000006EA0000-0x0000000006EA1000-memory.dmp

Download

memory/3600-124-0x0000000005730000-0x0000000005C2E000-memory.dmp

Download

memory/3600-117-0x0000000005C30000-0x0000000005C31000-memory.dmp

Download

memory/3600-118-0x00000000057D0000-0x00000000057D1000-memory.dmp

Download

memory/3600-127-0x0000000005730000-0x0000000005C2E000-memory.dmp

Download

memory/3600-119-0x0000000005870000-0x0000000005871000-memory.dmp

Download

memory/3600-120-0x00000000061D0000-0x00000000061D1000-memory.dmp

Download

memory/3600-115-0x0000000000E60000-0x0000000000E61000-memory.dmp

Download

memory/4012-142-0x0000000007080000-0x000000000708B000-memory.dmp

Download

memory/4012-141-0x0000000004EF0000-0x00000000053EE000-memory.dmp

Download

memory/4012-143-0x0000000009690000-0x0000000009691000-memory.dmp

Download

memory/4012-140-0x0000000004EF0000-0x00000000053EE000-memory.dmp

Download

memory/4364-153-0x0000000004D80000-0x0000000004D81000-memory.dmp

Download

memory/4364-144-0x0000000000400000-0x0000000000438000-memory.dmp

Download

memory/4364-156-0x0000000005370000-0x0000000005375000-memory.dmp

Download

memory/4364-157-0x0000000005380000-0x0000000005399000-memory.dmp

Download

memory/4364-158-0x0000000005F30000-0x0000000005F33000-memory.dmp

Download

memory/4364-159-0x0000000004E80000-0x0000000004E81000-memory.dmp

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