nanocore | 8fdfc8e04add1bbef6890ef7deb26d1ec3794d604ee6edc0e98822dcdad752d4

General

Target

Payment.exe
Size

579KB
MD5

93d766e31ea830782d463f15f95b2fd8
SHA1

5a26a4c104852c0e7d512477fe09cbab71689a72
SHA256

8fdfc8e04add1bbef6890ef7deb26d1ec3794d604ee6edc0e98822dcdad752d4
SHA512

159de675ebb705848a7e49c0867286429d4f52180239979c4e3b3552407d1074f1a096a5c37cf6ecc6ecc624fda68c83319119a05013658a8c4869e7a6cae769

Score

10^/10

nanocore evasion keylogger persistence spyware stealer suricata trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

brewsterchristophe.hopto.org:5899

Mutex

fa27134d-a29d-45ea-b9f2-05cdb2457ef3

Attributes

activate_away_mode
true
backup_connection_host
brewsterchristophe.hopto.org
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-04-12T01:55:03.778267936Z
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
5899
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
fa27134d-a29d-45ea-b9f2-05cdb2457ef3
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
brewsterchristophe.hopto.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
suricata: ET MALWARE Possible NanoCore C2 60B
suricata: ET MALWARE Possible NanoCore C2 60B
suricata

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Payment.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\SCSI Subsystem = "C:\\Program Files (x86)\\SCSI Subsystem\\scsiss.exe"	Payment.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

Payment.exe

description ioc process

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

Processes:

Payment.exe

description pid process target process

PID 1508 set thread context of 4392 1508 Payment.exe Payment.exe

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

description	pid	process	target process
PID 1508 set thread context of 4392	1508	Payment.exe	Payment.exe

Drops file in Program Files directory 2 IoCs

Processes:

Payment.exe

description	ioc	process
File created	C:\Program Files (x86)\SCSI Subsystem\scsiss.exe	Payment.exe
File opened for modification	C:\Program Files (x86)\SCSI Subsystem\scsiss.exe	Payment.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

2896 schtasks.exe
3552 schtasks.exe
Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

Payment.exePayment.exe

pid process

1508 Payment.exe
1508 Payment.exe
4392 Payment.exe
4392 Payment.exe
4392 Payment.exe
4392 Payment.exe
4392 Payment.exe
4392 Payment.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Payment.exe

pid process

4392 Payment.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Payment.exePayment.exe

description pid process

Token: SeDebugPrivilege 1508 Payment.exe
Token: SeDebugPrivilege 4392 Payment.exe

pid	process
2896	schtasks.exe
3552	schtasks.exe

pid	process
1508	Payment.exe
1508	Payment.exe
4392	Payment.exe
4392	Payment.exe
4392	Payment.exe
4392	Payment.exe
4392	Payment.exe
4392	Payment.exe

pid	process
4392	Payment.exe

description	pid	process
Token: SeDebugPrivilege	1508	Payment.exe
Token: SeDebugPrivilege	4392	Payment.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

Payment.exePayment.exe

description	pid	process	target process
PID 1508 wrote to memory of 2396	1508	Payment.exe	Payment.exe
PID 1508 wrote to memory of 2396	1508	Payment.exe	Payment.exe
PID 1508 wrote to memory of 2396	1508	Payment.exe	Payment.exe
PID 1508 wrote to memory of 4392	1508	Payment.exe	Payment.exe
PID 1508 wrote to memory of 4392	1508	Payment.exe	Payment.exe
PID 1508 wrote to memory of 4392	1508	Payment.exe	Payment.exe
PID 1508 wrote to memory of 4392	1508	Payment.exe	Payment.exe
PID 1508 wrote to memory of 4392	1508	Payment.exe	Payment.exe
PID 1508 wrote to memory of 4392	1508	Payment.exe	Payment.exe
PID 1508 wrote to memory of 4392	1508	Payment.exe	Payment.exe
PID 1508 wrote to memory of 4392	1508	Payment.exe	Payment.exe
PID 4392 wrote to memory of 3552	4392	Payment.exe	schtasks.exe
PID 4392 wrote to memory of 3552	4392	Payment.exe	schtasks.exe
PID 4392 wrote to memory of 3552	4392	Payment.exe	schtasks.exe
PID 4392 wrote to memory of 2896	4392	Payment.exe	schtasks.exe
PID 4392 wrote to memory of 2896	4392	Payment.exe	schtasks.exe
PID 4392 wrote to memory of 2896	4392	Payment.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\Payment.exe
"C:\Users\Admin\AppData\Local\Temp\Payment.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1508

C:\Users\Admin\AppData\Local\Temp\Payment.exe
"C:\Users\Admin\AppData\Local\Temp\Payment.exe"
2⤵
PID:2396

C:\Users\Admin\AppData\Local\Temp\Payment.exe
"C:\Users\Admin\AppData\Local\Temp\Payment.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:4392

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "SCSI Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4882.tmp"
3⤵
- Creates scheduled task(s)
PID:3552

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "SCSI Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp4910.tmp"
3⤵
- Creates scheduled task(s)
PID:2896

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\tmp4882.tmp
Filesize
1KB

MD5
5905de8dea2b27439bbd2530628ec36b

SHA1
cef4f6ffc6cfd72ccb626561fd398b84bff244f8

SHA256
a8df7ee1260fb3ab056ff2a64c3158ac751a523fe761f398a07ba063c1bb9368

SHA512
4e4ebb9537e72c8a09f2bcf3e67a6f5970c54d2982c325437763c9ba0edaf163d8d4657e740925b8f9df1c65cb266818e323a2c5a69e505c629ad15036c7726b

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp4910.tmp
Filesize
1KB

MD5
bd110f9fc6c1a842f1d9b269010b0611

SHA1
ef71c062902602faef9b66dcd1cfc9fe5baaf389

SHA256
8135c4e4eeaa741f752c0ab8f4ee33e3bb8a0cac5923812234f2e5177d50eb5b

SHA512
b8a7943a3126880b26407800bbdad5402c5b0e2aa106e7dbbb35d0cb145ca9de114401573a6aa66042a2e13674cfbcc2981d66b813f9b923fff5302210afba1f

Download Submit
memory/1508-131-0x0000000005B60000-0x0000000006104000-memory.dmp

Filesize
5.6MB

Download
memory/1508-132-0x0000000005650000-0x00000000056E2000-memory.dmp

Filesize
584KB

Download
memory/1508-133-0x0000000005600000-0x000000000560A000-memory.dmp

Filesize
40KB

Download
memory/1508-134-0x00000000094C0000-0x000000000955C000-memory.dmp

Filesize
624KB

Download
memory/1508-135-0x00000000096D0000-0x0000000009736000-memory.dmp

Filesize
408KB

Download
memory/1508-130-0x0000000000BC0000-0x0000000000C58000-memory.dmp

Filesize
608KB

Download
memory/2396-136-0x0000000000000000-mapping.dmp

Download
memory/2896-141-0x0000000000000000-mapping.dmp

Download
memory/3552-139-0x0000000000000000-mapping.dmp

Download
memory/4392-138-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/4392-137-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads