nanocore | 799a0831a87f80ddced683cf26c082c58c936a1bb868dd0e97552a9f035ba4ee

General

Target

5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe
Size

12KB
MD5

5b3262b61a5eaa3ebe7e8bdc4958fc3f
SHA1

112314d871226e07180bf2d0a2852120cbc1399f
SHA256

799a0831a87f80ddced683cf26c082c58c936a1bb868dd0e97552a9f035ba4ee
SHA512

319aa0970867ec79fb9c6b5f90d8d276eab4e59a7dfd6deab30c15f90651b80ea409c57f0fdc8e0e23eeac0621af0312cb0a4206f80e2f5e22d63b48ab7ddc57

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

cloudhost.myfirewall.org:5654

Mutex

9845a945-f2ff-4e93-b909-aece664ddb48

Attributes

activate_away_mode
true
backup_connection_host
cloudhost.myfirewall.org
backup_dns_server
cloudhost.myfirewall.org
buffer_size
65535
build_time
2021-06-20T04:14:27.248073436Z
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
5654
default_group
J
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
9845a945-f2ff-4e93-b909-aece664ddb48
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
cloudhost.myfirewall.org
primary_dns_server
cloudhost.myfirewall.org
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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\UPNP Subsystem = "C:\\Program Files (x86)\\UPNP Subsystem\\upnpss.exe"	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe

description pid process target process

PID 900 set thread context of 2396 900 5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe 5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe

description	pid	process	target process
PID 900 set thread context of 2396	900	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe

Drops file in Program Files directory 2 IoCs

Processes:

5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe

description	ioc	process
File created	C:\Program Files (x86)\UPNP Subsystem\upnpss.exe	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe
File opened for modification	C:\Program Files (x86)\UPNP Subsystem\upnpss.exe	5b3262b61a5eaa3ebe7e8bdc4958fc3f.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

1856 schtasks.exe
2236 schtasks.exe

pid	process
1856	schtasks.exe
2236	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe

pid	process
900	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe
900	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe
900	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe
2396	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe
2396	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe
2396	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe

pid process

2396 5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe

description pid process

Token: SeDebugPrivilege 900 5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe
Token: SeDebugPrivilege 2396 5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe

pid	process
2396	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe

description	pid	process
Token: SeDebugPrivilege	900	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe
Token: SeDebugPrivilege	2396	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe

description	pid	process	target process
PID 900 wrote to memory of 2396	900	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe
PID 900 wrote to memory of 2396	900	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe
PID 900 wrote to memory of 2396	900	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe
PID 900 wrote to memory of 2396	900	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe
PID 900 wrote to memory of 2396	900	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe
PID 900 wrote to memory of 2396	900	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe
PID 900 wrote to memory of 2396	900	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe
PID 900 wrote to memory of 2396	900	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe
PID 2396 wrote to memory of 1856	2396	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe	schtasks.exe
PID 2396 wrote to memory of 1856	2396	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe	schtasks.exe
PID 2396 wrote to memory of 1856	2396	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe	schtasks.exe
PID 2396 wrote to memory of 2236	2396	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe	schtasks.exe
PID 2396 wrote to memory of 2236	2396	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe	schtasks.exe
PID 2396 wrote to memory of 2236	2396	5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe
"C:\Users\Admin\AppData\Local\Temp\5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:900

C:\Users\Admin\AppData\Local\Temp\5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe
C:\Users\Admin\AppData\Local\Temp\5b3262b61a5eaa3ebe7e8bdc4958fc3f.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:2396

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "UPNP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB2C.tmp"
3⤵
- Creates scheduled task(s)
PID:1856

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "UPNP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpC27.tmp"
3⤵
- Creates scheduled task(s)
PID:2236

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\Microsoft\CLR_v4.0_32\UsageLogs\5b3262b61a5eaa3ebe7e8bdc4958fc3f.exe.log
MD5
808e884c00533a9eb0e13e64960d9c3a

SHA1
279d05181fc6179a12df1a669ff5d8b64c1380ae

SHA256
2f6a0aab99b1c228a6642f44f8992646ce84c5a2b3b9941b6cf1f2badf67bdd6

SHA512
9489bdb2ffdfeef3c52edcfe9b34c6688eba53eb86075e0564df1cd474723c86b5b5aedc12df1ff5fc12cf97bd1e3cf9701ff61dc4ce90155d70e9ccfd0fc299

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpB2C.tmp
MD5
4a0ca515a4c7c277c2cdc11c14b8a444

SHA1
c3acb3acf02a2833efbb75ac5480b890f681f694

SHA256
2e230e44e199044afdc2f1d46b0f7f4c06697367cea123a052ab23279ba54c84

SHA512
04b59007506f19ff43f1cafe1981eea068a00a97a4a899417218230a17b822fa5a135c30e89759715bab6f72655bc47080f31111610bdb30faf37663c4dd4297

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC27.tmp
MD5
af9986f5e128fd8bd3ae748fcba6576d

SHA1
8060072c35108b48649a03be91803b97f1ad40a4

SHA256
f3242f6480b3d1a8f9285135fdce9a201c4802ce062eee4fb41c488a21d53303

SHA512
f35c8e1699905bc972ae48a5a4a9fd33ea04b2d851ffc1cb1d1573a2087121d803b4186a696b2edad10a9c46c388a478e105f5a730020b598aa9f483086dba38

Download Submit
memory/900-116-0x0000000005170000-0x0000000005171000-memory.dmp

Filesize
4KB

Download
memory/900-117-0x0000000005D40000-0x0000000005DC5000-memory.dmp

Filesize
532KB

Download
memory/900-118-0x00000000062B0000-0x00000000062E3000-memory.dmp

Filesize
204KB

Download
memory/900-114-0x00000000009B0000-0x00000000009B1000-memory.dmp

Filesize
4KB

Download
memory/1856-129-0x0000000000000000-mapping.dmp

Download
memory/2236-131-0x0000000000000000-mapping.dmp

Download
memory/2396-119-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/2396-127-0x0000000004C80000-0x000000000517E000-memory.dmp

Filesize
5.0MB

Download
memory/2396-128-0x0000000004D00000-0x0000000004D01000-memory.dmp

Filesize
4KB

Download
memory/2396-126-0x0000000004E60000-0x0000000004E61000-memory.dmp

Filesize
4KB

Download
memory/2396-125-0x0000000004D20000-0x0000000004D21000-memory.dmp

Filesize
4KB

Download
memory/2396-124-0x0000000005180000-0x0000000005181000-memory.dmp

Filesize
4KB

Download
memory/2396-120-0x000000000041E792-mapping.dmp

Download
memory/2396-133-0x0000000005040000-0x0000000005045000-memory.dmp

Filesize
20KB

Download
memory/2396-134-0x0000000005160000-0x0000000005179000-memory.dmp

Filesize
100KB

Download
memory/2396-135-0x0000000005E80000-0x0000000005E83000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads