nanocore | db6c1282b87b6eb3c349b5a54d553212dc5164c6338788a26c2a1565d236f74c

General

Target

DB6C1282B87B6EB3C349B5A54D553212DC5164C633878.exe
Size

554KB
MD5

014fe96209304ea33221cde94b60768f
SHA1

a08a355aba9edf5ddf421bebb2c1a3f26ba5c74c
SHA256

db6c1282b87b6eb3c349b5a54d553212dc5164c6338788a26c2a1565d236f74c
SHA512

ec2ef3abc677fe848b026d357144c348b544509da34ef20d3ba6777a096908c69bdadc5b478ea2be55dae10bdbcc265c95877f4c2b33997f5de3aa5e7a9a9a5e
SSDEEP

12288://kNgRTybseb9sz3pJTTjm1mgQ45RZ6mW2ryi/GeoSHm2c/ctP:UWsseG5NTjml6m/ryi/GF2c/ctP

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan upx

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

ukurbap.duckdns.org:5873

Mutex

ea2d5244-0e88-4b84-a814-d4ce3b1d1e75

Attributes

activate_away_mode
true
backup_connection_host
ukurbap.duckdns.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2018-11-29T23:06:47.222373936Z
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
5873
default_group
reel
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
ea2d5244-0e88-4b84-a814-d4ce3b1d1e75
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
ukurbap.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

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
behavioral2/memory/4792-132-0x0000000000400000-0x000000000055D000-memory.dmp	upx
behavioral2/memory/4792-135-0x0000000000400000-0x000000000055D000-memory.dmp	upx

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

DB6C1282B87B6EB3C349B5A54D553212DC5164C633878.exeRegAsm.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce	DB6C1282B87B6EB3C349B5A54D553212DC5164C633878.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce\i7ZFwliNBhB0iH_o = "C:\\Users\\Admin\\AppData\\Local\\Temp\\DB6C1282B87B6EB3C349B5A54D553212DC5164C633878.exe"	DB6C1282B87B6EB3C349B5A54D553212DC5164C633878.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DDP Host = "C:\\Program Files (x86)\\DDP Host\\ddphost.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
Suspicious use of SetThreadContext 1 IoCs

Processes:

DB6C1282B87B6EB3C349B5A54D553212DC5164C633878.exe

description pid process target process

PID 4792 set thread context of 4764 4792 DB6C1282B87B6EB3C349B5A54D553212DC5164C633878.exe RegAsm.exe

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

description	pid	process	target process
PID 4792 set thread context of 4764	4792	DB6C1282B87B6EB3C349B5A54D553212DC5164C633878.exe	RegAsm.exe

Drops file in Program Files directory 2 IoCs

Processes:

RegAsm.exe

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

Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exeschtasks.exe

pid process

4704 schtasks.exe
1596 schtasks.exe
Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

RegAsm.exe

pid process

4764 RegAsm.exe
4764 RegAsm.exe
4764 RegAsm.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegAsm.exe

pid process

4764 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 4764 RegAsm.exe

pid	process
4704	schtasks.exe
1596	schtasks.exe

pid	process
4764	RegAsm.exe
4764	RegAsm.exe
4764	RegAsm.exe

pid	process
4764	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	4764	RegAsm.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

DB6C1282B87B6EB3C349B5A54D553212DC5164C633878.exeRegAsm.exe

description	pid	process	target process
PID 4792 wrote to memory of 4764	4792	DB6C1282B87B6EB3C349B5A54D553212DC5164C633878.exe	RegAsm.exe
PID 4792 wrote to memory of 4764	4792	DB6C1282B87B6EB3C349B5A54D553212DC5164C633878.exe	RegAsm.exe
PID 4792 wrote to memory of 4764	4792	DB6C1282B87B6EB3C349B5A54D553212DC5164C633878.exe	RegAsm.exe
PID 4792 wrote to memory of 4764	4792	DB6C1282B87B6EB3C349B5A54D553212DC5164C633878.exe	RegAsm.exe
PID 4792 wrote to memory of 4764	4792	DB6C1282B87B6EB3C349B5A54D553212DC5164C633878.exe	RegAsm.exe
PID 4792 wrote to memory of 4764	4792	DB6C1282B87B6EB3C349B5A54D553212DC5164C633878.exe	RegAsm.exe
PID 4792 wrote to memory of 4764	4792	DB6C1282B87B6EB3C349B5A54D553212DC5164C633878.exe	RegAsm.exe
PID 4792 wrote to memory of 4764	4792	DB6C1282B87B6EB3C349B5A54D553212DC5164C633878.exe	RegAsm.exe
PID 4764 wrote to memory of 4704	4764	RegAsm.exe	schtasks.exe
PID 4764 wrote to memory of 4704	4764	RegAsm.exe	schtasks.exe
PID 4764 wrote to memory of 4704	4764	RegAsm.exe	schtasks.exe
PID 4764 wrote to memory of 1596	4764	RegAsm.exe	schtasks.exe
PID 4764 wrote to memory of 1596	4764	RegAsm.exe	schtasks.exe
PID 4764 wrote to memory of 1596	4764	RegAsm.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\DB6C1282B87B6EB3C349B5A54D553212DC5164C633878.exe
"C:\Users\Admin\AppData\Local\Temp\DB6C1282B87B6EB3C349B5A54D553212DC5164C633878.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4792

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:4764

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "DDP Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7BCC.tmp"
3⤵
- Creates scheduled task(s)
PID:4704

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "DDP Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7C89.tmp"
3⤵
- Creates scheduled task(s)
PID:1596

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp7BCC.tmp
Filesize
1KB

MD5
c6f0625bf4c1cdfb699980c9243d3b22

SHA1
43de1fe580576935516327f17b5da0c656c72851

SHA256
8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576

SHA512
9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp7C89.tmp
Filesize
1KB

MD5
2271642ca970891700e3f48439739ed8

SHA1
cd472df2349f7db9e1e460d0ee28acd97b8a8793

SHA256
7aba66abbcb0b13455609174db23aed495a9adbef0e0acd28baa9c92445eda68

SHA512
4669a4ef8ec28cdb852ffc1401576b1bf9a9d837797d7d92bc88c18b3097404f36854e50167b309706fef400cabc43c876569ce2797ba85eb169a2783b8fe807

Download Submit
memory/1596-139-0x0000000000000000-mapping.dmp

Download
memory/4704-137-0x0000000000000000-mapping.dmp

Download
memory/4764-133-0x0000000000000000-mapping.dmp

Download
memory/4764-134-0x0000000000400000-0x0000000000452000-memory.dmp

Filesize
328KB

Download
memory/4764-136-0x0000000074510000-0x0000000074AC1000-memory.dmp

Filesize
5.7MB

Download
memory/4764-141-0x0000000074510000-0x0000000074AC1000-memory.dmp

Filesize
5.7MB

Download
memory/4792-132-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download
memory/4792-135-0x0000000000400000-0x000000000055D000-memory.dmp

Filesize
1.4MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads