nanocore | 311bb44d1481361986b791cc604ab7e29275013ef0cdb8b7f1811103a28ad75d

General

Target

3b249d88803f7ccd7b07f0e573514914_JaffaCakes118.exe
Size

2.0MB
MD5

3b249d88803f7ccd7b07f0e573514914
SHA1

24d1acb1553a1eacde1f763453002347ddcd8f9e
SHA256

311bb44d1481361986b791cc604ab7e29275013ef0cdb8b7f1811103a28ad75d
SHA512

5319e19f698869977e4f5877db283bf16860c01cda57a67760984ff1fbd10891b9b977ce5804e1a4df4c526feb331346ba30caf6db72ebc439a2683ed77c48d3
SSDEEP

24576:FCdxte/80jYLT3U1jfsWafuCK20pwecJhdsU5ud97d/3SYwY4nxoprxQ:Mw80cTsjkWafuRLk

Score

10^/10

nanocore evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

saadhente.ddns.net:4003

127.0.0.1:4003

Mutex

ea59d560-9102-46f8-8c20-bd4ae92d2406

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2019-01-10T22:41:37.416586536Z
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
4003
default_group
chisco
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
ea59d560-9102-46f8-8c20-bd4ae92d2406
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
saadhente.ddns.net
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:

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:

3b249d88803f7ccd7b07f0e573514914_JaffaCakes118.exe

description pid process target process

PID 4776 set thread context of 4568 4776 3b249d88803f7ccd7b07f0e573514914_JaffaCakes118.exe RegAsm.exe
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence execution

Scheduled Task
T1053.005

Processes:

schtasks.exe

pid process

1900 schtasks.exe
Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

RegAsm.exe

pid process

4568 RegAsm.exe
4568 RegAsm.exe
4568 RegAsm.exe
4568 RegAsm.exe
4568 RegAsm.exe
4568 RegAsm.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

RegAsm.exe

pid process

4568 RegAsm.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

RegAsm.exe

description pid process

Token: SeDebugPrivilege 4568 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 4776 set thread context of 4568	4776	3b249d88803f7ccd7b07f0e573514914_JaffaCakes118.exe	RegAsm.exe

pid	process
1900	schtasks.exe

pid	process
4568	RegAsm.exe
4568	RegAsm.exe
4568	RegAsm.exe
4568	RegAsm.exe
4568	RegAsm.exe
4568	RegAsm.exe

pid	process
4568	RegAsm.exe

description	pid	process
Token: SeDebugPrivilege	4568	RegAsm.exe

Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

3b249d88803f7ccd7b07f0e573514914_JaffaCakes118.exe

pid	process
4776	3b249d88803f7ccd7b07f0e573514914_JaffaCakes118.exe
4776	3b249d88803f7ccd7b07f0e573514914_JaffaCakes118.exe
4776	3b249d88803f7ccd7b07f0e573514914_JaffaCakes118.exe

Suspicious use of SendNotifyMessage 3 IoCs

Processes:

3b249d88803f7ccd7b07f0e573514914_JaffaCakes118.exe

pid	process
4776	3b249d88803f7ccd7b07f0e573514914_JaffaCakes118.exe
4776	3b249d88803f7ccd7b07f0e573514914_JaffaCakes118.exe
4776	3b249d88803f7ccd7b07f0e573514914_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

3b249d88803f7ccd7b07f0e573514914_JaffaCakes118.exeRegAsm.exe

description	pid	process	target process
PID 4776 wrote to memory of 4568	4776	3b249d88803f7ccd7b07f0e573514914_JaffaCakes118.exe	RegAsm.exe
PID 4776 wrote to memory of 4568	4776	3b249d88803f7ccd7b07f0e573514914_JaffaCakes118.exe	RegAsm.exe
PID 4776 wrote to memory of 4568	4776	3b249d88803f7ccd7b07f0e573514914_JaffaCakes118.exe	RegAsm.exe
PID 4776 wrote to memory of 4568	4776	3b249d88803f7ccd7b07f0e573514914_JaffaCakes118.exe	RegAsm.exe
PID 4776 wrote to memory of 4568	4776	3b249d88803f7ccd7b07f0e573514914_JaffaCakes118.exe	RegAsm.exe
PID 4568 wrote to memory of 1900	4568	RegAsm.exe	schtasks.exe
PID 4568 wrote to memory of 1900	4568	RegAsm.exe	schtasks.exe
PID 4568 wrote to memory of 1900	4568	RegAsm.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\3b249d88803f7ccd7b07f0e573514914_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\3b249d88803f7ccd7b07f0e573514914_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4776

C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
2⤵
- Checks whether UAC is enabled
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4568

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "WAN Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpA6EE.tmp"
3⤵
- Scheduled Task/Job: Scheduled Task
PID:1900

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpA6EE.tmp
Filesize
1KB

MD5
c6f0625bf4c1cdfb699980c9243d3b22

SHA1
43de1fe580576935516327f17b5da0c656c72851

SHA256
8dfc4e937f0b2374e3ced25fce344b0731cf44b8854625b318d50ece2da8f576

SHA512
9ef2dbd4142ad0e1e6006929376ecb8011e7ffc801ee2101e906787d70325ad82752df65839de9972391fa52e1e5974ec1a5c7465a88aa56257633ebb7d70969

Download Submit
memory/4568-2-0x0000000000400000-0x0000000000490000-memory.dmp

Filesize
576KB

Download
memory/4568-6-0x0000000074322000-0x0000000074323000-memory.dmp

Filesize
4KB

Download
memory/4568-7-0x0000000074320000-0x00000000748D1000-memory.dmp

Filesize
5.7MB

Download
memory/4568-8-0x0000000074320000-0x00000000748D1000-memory.dmp

Filesize
5.7MB

Download
memory/4568-13-0x0000000074322000-0x0000000074323000-memory.dmp

Filesize
4KB

Download
memory/4568-14-0x0000000074320000-0x00000000748D1000-memory.dmp

Filesize
5.7MB

Download
memory/4776-0-0x0000000002300000-0x0000000002301000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads