nanocore | fbf87baf4c0d1b80b0c21101ffcaae027e4b6c15e151a4fde333725279c9809f

General

Target

0K408j3RN7U8UB6.exe
Size

444KB
MD5

0d2a1d6662af45ba909226b2992798b0
SHA1

40f3e3e5f00436a1f779e9eafb15bcf3c1c8ae3e
SHA256

358935d89163fa342e0707a3be3e844b44df91341a48dcf1c28d8b8c8424e6b5
SHA512

f0eed196650f254d916c2041f157788dffed25e27f76c0f043f111492e058a1a784d94c062e0c3fd39e04671ba089b99b92c2159022d90992a9eb13877fa2727

Score

10^/10

nanocore evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

darlingtondc.hopto.org:1905

185.165.153.17:1905

Mutex

f1e189ea-bf5f-4d37-b84c-3b194f4e6fe7

Attributes

activate_away_mode
true
backup_connection_host
185.165.153.17
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-03-14T23:32:54.424872236Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
1905
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
f1e189ea-bf5f-4d37-b84c-3b194f4e6fe7
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
darlingtondc.hopto.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
Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

0K408j3RN7U8UB6.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA 0K408j3RN7U8UB6.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

0K408j3RN7U8UB6.exe

description pid process target process

PID 1800 set thread context of 1072 1800 0K408j3RN7U8UB6.exe 0K408j3RN7U8UB6.exe
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

Processes:

schtasks.exe

pid process

1148 schtasks.exe
Suspicious behavior: EnumeratesProcesses 5 IoCs

Processes:

0K408j3RN7U8UB6.exe0K408j3RN7U8UB6.exe

pid process

1800 0K408j3RN7U8UB6.exe
1800 0K408j3RN7U8UB6.exe
1800 0K408j3RN7U8UB6.exe
1072 0K408j3RN7U8UB6.exe
1072 0K408j3RN7U8UB6.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

0K408j3RN7U8UB6.exe

pid process

1072 0K408j3RN7U8UB6.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

0K408j3RN7U8UB6.exe0K408j3RN7U8UB6.exe

description pid process

Token: SeDebugPrivilege 1800 0K408j3RN7U8UB6.exe
Token: SeDebugPrivilege 1072 0K408j3RN7U8UB6.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	0K408j3RN7U8UB6.exe

description	pid	process	target process
PID 1800 set thread context of 1072	1800	0K408j3RN7U8UB6.exe	0K408j3RN7U8UB6.exe

pid	process
1148	schtasks.exe

pid	process
1800	0K408j3RN7U8UB6.exe
1800	0K408j3RN7U8UB6.exe
1800	0K408j3RN7U8UB6.exe
1072	0K408j3RN7U8UB6.exe
1072	0K408j3RN7U8UB6.exe

pid	process
1072	0K408j3RN7U8UB6.exe

description	pid	process
Token: SeDebugPrivilege	1800	0K408j3RN7U8UB6.exe
Token: SeDebugPrivilege	1072	0K408j3RN7U8UB6.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

0K408j3RN7U8UB6.exe

description	pid	process	target process
PID 1800 wrote to memory of 1148	1800	0K408j3RN7U8UB6.exe	schtasks.exe
PID 1800 wrote to memory of 1148	1800	0K408j3RN7U8UB6.exe	schtasks.exe
PID 1800 wrote to memory of 1148	1800	0K408j3RN7U8UB6.exe	schtasks.exe
PID 1800 wrote to memory of 1148	1800	0K408j3RN7U8UB6.exe	schtasks.exe
PID 1800 wrote to memory of 1072	1800	0K408j3RN7U8UB6.exe	0K408j3RN7U8UB6.exe
PID 1800 wrote to memory of 1072	1800	0K408j3RN7U8UB6.exe	0K408j3RN7U8UB6.exe
PID 1800 wrote to memory of 1072	1800	0K408j3RN7U8UB6.exe	0K408j3RN7U8UB6.exe
PID 1800 wrote to memory of 1072	1800	0K408j3RN7U8UB6.exe	0K408j3RN7U8UB6.exe
PID 1800 wrote to memory of 1072	1800	0K408j3RN7U8UB6.exe	0K408j3RN7U8UB6.exe
PID 1800 wrote to memory of 1072	1800	0K408j3RN7U8UB6.exe	0K408j3RN7U8UB6.exe
PID 1800 wrote to memory of 1072	1800	0K408j3RN7U8UB6.exe	0K408j3RN7U8UB6.exe
PID 1800 wrote to memory of 1072	1800	0K408j3RN7U8UB6.exe	0K408j3RN7U8UB6.exe
PID 1800 wrote to memory of 1072	1800	0K408j3RN7U8UB6.exe	0K408j3RN7U8UB6.exe

C:\Users\Admin\AppData\Local\Temp\0K408j3RN7U8UB6.exe
"C:\Users\Admin\AppData\Local\Temp\0K408j3RN7U8UB6.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1800

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\eECnqy" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA999.tmp"
2⤵
- Creates scheduled task(s)
PID:1148

C:\Users\Admin\AppData\Local\Temp\0K408j3RN7U8UB6.exe
"{path}"
2⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:1072

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

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\tmpA999.tmp

Filesize
1KB

MD5
7c5e646ea295a24049252d038fa2fb41

SHA1
28b99b427ccfedc76ee5fac61cf740942a4d7425

SHA256
fe3f0a86544cea33f2e1a71dcf4b7171d9f9056434d030816f8a9c108ec13185

SHA512
abdd334e44aba10e962a3428eb9ee72879535cb66b7b282ffe3c2f6464edcb6e579e590c8904f364e0e662571769c5ae92c12c143d207ce78d232969943568ef

Download Submit
memory/1072-61-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1072-58-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1072-59-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1072-62-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1072-64-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1072-65-0x000000000041E792-mapping.dmp

Download
memory/1072-67-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1072-69-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/1072-71-0x00000000741E0000-0x000000007478B000-memory.dmp

Filesize
5.7MB

Download
memory/1148-56-0x0000000000000000-mapping.dmp

Download
memory/1800-55-0x00000000741E0000-0x000000007478B000-memory.dmp

Filesize
5.7MB

Download
memory/1800-54-0x0000000075C71000-0x0000000075C73000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads