nanocore | 74415173fef1195daf0e6647e5e4e8817cfaecf72cb5f96707936bd175405b27

General

Target

Scan00223.exe
Size

1.2MB
MD5

5cdc2ba3ecb6b8b18d2ee2abacaa1eec
SHA1

af6e083f4bc6ea922ea86d2e5809945c2444d561
SHA256

e1cbe1e9e86779580e6a3b92e68d38d3fbeb40dc3b6f10e5bcdd1078ec87023e
SHA512

d7d67fcf0fbd2c5738c0c2a6e9771c8c8e53cb4ec265e4c0cbcfdd0474e758b11675589c4ff09124d1f104b8266aff062fab23d05055d2916eb1ed8865699f6b
SSDEEP

24576:OAHnh+eWsN3skA4RV1Hom2KXMmHasw4aCntfV0I5:5h+ZkldoPK8Yas3L

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

185.244.31.187:3000

Mutex

85b72eaa-435b-4ed4-afb0-2dc6909a8443

Attributes

activate_away_mode
true
backup_connection_host
185.244.31.187
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2018-11-25T09:02:14.508155636Z
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
3000
default_group
FEB
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
85b72eaa-435b-4ed4-afb0-2dc6909a8443
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
185.244.31.187
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
Executes dropped EXE 2 IoCs

Processes:

BrowserSettingSync.exeBrowserSettingSync.exe

pid process

1488 BrowserSettingSync.exe
592 BrowserSettingSync.exe

pid	process
1488	BrowserSettingSync.exe
592	BrowserSettingSync.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

RegAsm.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\DDP Service = "C:\\Program Files (x86)\\DDP Service\\ddpsv.exe"	RegAsm.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

RegAsm.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA RegAsm.exe

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.

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Roaming\cleanmgr\BrowserSettingSync.exe	autoit_exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

Scan00223.exeBrowserSettingSync.exe

description	pid	process	target process
PID 2312 set thread context of 2360	2312	Scan00223.exe	RegAsm.exe
PID 1488 set thread context of 944	1488	BrowserSettingSync.exe	RegAsm.exe

Drops file in Program Files directory 2 IoCs

Processes:

RegAsm.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\DDP Service\ddpsv.exe	RegAsm.exe
File created	C:\Program Files (x86)\DDP Service\ddpsv.exe	RegAsm.exe

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

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 4 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exeschtasks.exeschtasks.exeschtasks.exe

pid process

2520 schtasks.exe
2408 schtasks.exe
1300 schtasks.exe
2852 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

RegAsm.exe

pid process

2360 RegAsm.exe
2360 RegAsm.exe
2360 RegAsm.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegAsm.exe

pid process

2360 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 2360 RegAsm.exe

pid	process
2520	schtasks.exe
2408	schtasks.exe
1300	schtasks.exe
2852	schtasks.exe

pid	process
2360	RegAsm.exe
2360	RegAsm.exe
2360	RegAsm.exe

pid	process
2360	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	2360	RegAsm.exe

Suspicious use of WriteProcessMemory 42 IoCs

Processes:

Scan00223.exeRegAsm.exetaskeng.exeBrowserSettingSync.exe

description	pid	process	target process
PID 2312 wrote to memory of 2360	2312	Scan00223.exe	RegAsm.exe
PID 2312 wrote to memory of 2360	2312	Scan00223.exe	RegAsm.exe
PID 2312 wrote to memory of 2360	2312	Scan00223.exe	RegAsm.exe
PID 2312 wrote to memory of 2360	2312	Scan00223.exe	RegAsm.exe
PID 2312 wrote to memory of 2360	2312	Scan00223.exe	RegAsm.exe
PID 2312 wrote to memory of 2360	2312	Scan00223.exe	RegAsm.exe
PID 2312 wrote to memory of 2360	2312	Scan00223.exe	RegAsm.exe
PID 2312 wrote to memory of 2360	2312	Scan00223.exe	RegAsm.exe
PID 2312 wrote to memory of 2360	2312	Scan00223.exe	RegAsm.exe
PID 2360 wrote to memory of 2520	2360	RegAsm.exe	schtasks.exe
PID 2360 wrote to memory of 2520	2360	RegAsm.exe	schtasks.exe
PID 2360 wrote to memory of 2520	2360	RegAsm.exe	schtasks.exe
PID 2360 wrote to memory of 2520	2360	RegAsm.exe	schtasks.exe
PID 2360 wrote to memory of 2408	2360	RegAsm.exe	schtasks.exe
PID 2360 wrote to memory of 2408	2360	RegAsm.exe	schtasks.exe
PID 2360 wrote to memory of 2408	2360	RegAsm.exe	schtasks.exe
PID 2360 wrote to memory of 2408	2360	RegAsm.exe	schtasks.exe
PID 2312 wrote to memory of 1300	2312	Scan00223.exe	schtasks.exe
PID 2312 wrote to memory of 1300	2312	Scan00223.exe	schtasks.exe
PID 2312 wrote to memory of 1300	2312	Scan00223.exe	schtasks.exe
PID 2312 wrote to memory of 1300	2312	Scan00223.exe	schtasks.exe
PID 2600 wrote to memory of 1488	2600	taskeng.exe	BrowserSettingSync.exe
PID 2600 wrote to memory of 1488	2600	taskeng.exe	BrowserSettingSync.exe
PID 2600 wrote to memory of 1488	2600	taskeng.exe	BrowserSettingSync.exe
PID 2600 wrote to memory of 1488	2600	taskeng.exe	BrowserSettingSync.exe
PID 1488 wrote to memory of 944	1488	BrowserSettingSync.exe	RegAsm.exe
PID 1488 wrote to memory of 944	1488	BrowserSettingSync.exe	RegAsm.exe
PID 1488 wrote to memory of 944	1488	BrowserSettingSync.exe	RegAsm.exe
PID 1488 wrote to memory of 944	1488	BrowserSettingSync.exe	RegAsm.exe
PID 1488 wrote to memory of 944	1488	BrowserSettingSync.exe	RegAsm.exe
PID 1488 wrote to memory of 944	1488	BrowserSettingSync.exe	RegAsm.exe
PID 1488 wrote to memory of 944	1488	BrowserSettingSync.exe	RegAsm.exe
PID 1488 wrote to memory of 944	1488	BrowserSettingSync.exe	RegAsm.exe
PID 1488 wrote to memory of 944	1488	BrowserSettingSync.exe	RegAsm.exe
PID 1488 wrote to memory of 2852	1488	BrowserSettingSync.exe	schtasks.exe
PID 1488 wrote to memory of 2852	1488	BrowserSettingSync.exe	schtasks.exe
PID 1488 wrote to memory of 2852	1488	BrowserSettingSync.exe	schtasks.exe
PID 1488 wrote to memory of 2852	1488	BrowserSettingSync.exe	schtasks.exe
PID 2600 wrote to memory of 592	2600	taskeng.exe	BrowserSettingSync.exe
PID 2600 wrote to memory of 592	2600	taskeng.exe	BrowserSettingSync.exe
PID 2600 wrote to memory of 592	2600	taskeng.exe	BrowserSettingSync.exe
PID 2600 wrote to memory of 592	2600	taskeng.exe	BrowserSettingSync.exe

C:\Users\Admin\AppData\Local\Temp\Scan00223.exe
"C:\Users\Admin\AppData\Local\Temp\Scan00223.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2312

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.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:2360

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "DDP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1B1F.tmp"
3⤵
- Creates scheduled task(s)
PID:2520

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "DDP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp1CD5.tmp"
3⤵
- Creates scheduled task(s)
PID:2408

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\SysWOW64\schtasks.exe" /create /tn BluetoothDesktopHandlers /tr "C:\Users\Admin\AppData\Roaming\cleanmgr\BrowserSettingSync.exe" /sc minute /mo 1 /F
2⤵
- Creates scheduled task(s)
PID:1300

C:\Windows\system32\taskeng.exe
taskeng.exe {CDEBB6C7-A897-47F4-B4E2-A54256557102} S-1-5-21-330940541-141609230-1670313778-1000:KXIPPCKF\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2600

C:\Users\Admin\AppData\Roaming\cleanmgr\BrowserSettingSync.exe
C:\Users\Admin\AppData\Roaming\cleanmgr\BrowserSettingSync.exe
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1488

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
3⤵
PID:944

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\SysWOW64\schtasks.exe" /create /tn BluetoothDesktopHandlers /tr "C:\Users\Admin\AppData\Roaming\cleanmgr\BrowserSettingSync.exe" /sc minute /mo 1 /F
3⤵
- Creates scheduled task(s)
PID:2852

C:\Users\Admin\AppData\Roaming\cleanmgr\BrowserSettingSync.exe
C:\Users\Admin\AppData\Roaming\cleanmgr\BrowserSettingSync.exe
2⤵
- Executes dropped EXE
PID:592

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp1B1F.tmp
Filesize
1KB

MD5
c6f0625bf4c1cdfb699980c9243d3b22

SHA1
43de1fe580576935516327f17b5da0c656c72851

SHA256
8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576

SHA512
9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp1CD5.tmp
Filesize
1KB

MD5
93d357e6194c8eb8d0616a9f592cc4bf

SHA1
5cc3a3d95d82cb88f65cb6dc6c188595fa272808

SHA256
a18de0ef2102d2546c7afd07ad1d7a071a0e59aff0868cf3937a145f24feb713

SHA512
4df079387f6a76e0deb96ab4c11f6cffa62a8b42dc4970e885dab10351fade2d9e933663c141b76409657f85f1bf9dbb533d92dce52dc62598aafc4793743f7f

Download Submit
C:\Users\Admin\AppData\Roaming\cleanmgr\BrowserSettingSync.exe
Filesize
1.2MB

MD5
2d8240cb5dab77a8eb22dfa6cbb76902

SHA1
56ba9bea4d132fe435d2150394838cdf1da0159f

SHA256
d9dd2e26fedcd96cfd17222ffedd5bda869150c6f8d43cfafe7beae53f1223b7

SHA512
ffb34a282ee2586bbc6d18b186fa78ef0d02e156d69b623609c6dd9a86c961dbebb74dbffc985af108b00f3aaf0ba7fa2f4821edd71a8bdd62e16f8eabcd0199

Download Submit
memory/944-31-0x0000000000090000-0x00000000000C8000-memory.dmp

Filesize
224KB

Download
memory/944-32-0x0000000000090000-0x00000000000C8000-memory.dmp

Filesize
224KB

Download
memory/944-25-0x0000000000090000-0x00000000000C8000-memory.dmp

Filesize
224KB

Download
memory/2312-0-0x0000000000160000-0x0000000000161000-memory.dmp

Filesize
4KB

Download
memory/2360-10-0x0000000074882000-0x0000000074884000-memory.dmp

Filesize
8KB

Download
memory/2360-1-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2360-20-0x0000000074882000-0x0000000074884000-memory.dmp

Filesize
8KB

Download
memory/2360-6-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2360-9-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2360-8-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2360-2-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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