nanocore | 34acd51df743b093c9eda93ebf46db0095fe2bdd4ee58d18c65e8914790f337d

General

Target

f76bc0e1dd77808d3668b3a169155dec.exe
Size

13KB
MD5

f76bc0e1dd77808d3668b3a169155dec
SHA1

d4770ddfa3bff74a0b9c00d6acecc87d60212fe1
SHA256

34acd51df743b093c9eda93ebf46db0095fe2bdd4ee58d18c65e8914790f337d
SHA512

88339524423173ac21397e8c005f95202cff111130a139e8268c9fdc3302748fd818c8990062dd2b5fa07d3dc9ad6cc7b4fcc20b3717e7ff1c1f5d982a795aec

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:

f76bc0e1dd77808d3668b3a169155dec.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"	f76bc0e1dd77808d3668b3a169155dec.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

f76bc0e1dd77808d3668b3a169155dec.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	f76bc0e1dd77808d3668b3a169155dec.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

f76bc0e1dd77808d3668b3a169155dec.exe

description pid process target process

PID 4648 set thread context of 3796 4648 f76bc0e1dd77808d3668b3a169155dec.exe f76bc0e1dd77808d3668b3a169155dec.exe

description	pid	process	target process
PID 4648 set thread context of 3796	4648	f76bc0e1dd77808d3668b3a169155dec.exe	f76bc0e1dd77808d3668b3a169155dec.exe

Drops file in Program Files directory 2 IoCs

Processes:

f76bc0e1dd77808d3668b3a169155dec.exe

description	ioc	process
File created	C:\Program Files (x86)\UPNP Subsystem\upnpss.exe	f76bc0e1dd77808d3668b3a169155dec.exe
File opened for modification	C:\Program Files (x86)\UPNP Subsystem\upnpss.exe	f76bc0e1dd77808d3668b3a169155dec.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

4196 schtasks.exe
3344 schtasks.exe

pid	process
4196	schtasks.exe
3344	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

f76bc0e1dd77808d3668b3a169155dec.exef76bc0e1dd77808d3668b3a169155dec.exe

pid	process
4648	f76bc0e1dd77808d3668b3a169155dec.exe
4648	f76bc0e1dd77808d3668b3a169155dec.exe
4648	f76bc0e1dd77808d3668b3a169155dec.exe
3796	f76bc0e1dd77808d3668b3a169155dec.exe
3796	f76bc0e1dd77808d3668b3a169155dec.exe
3796	f76bc0e1dd77808d3668b3a169155dec.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

f76bc0e1dd77808d3668b3a169155dec.exe

pid process

3796 f76bc0e1dd77808d3668b3a169155dec.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

f76bc0e1dd77808d3668b3a169155dec.exef76bc0e1dd77808d3668b3a169155dec.exe

description pid process

Token: SeDebugPrivilege 4648 f76bc0e1dd77808d3668b3a169155dec.exe
Token: SeDebugPrivilege 3796 f76bc0e1dd77808d3668b3a169155dec.exe

pid	process
3796	f76bc0e1dd77808d3668b3a169155dec.exe

description	pid	process
Token: SeDebugPrivilege	4648	f76bc0e1dd77808d3668b3a169155dec.exe
Token: SeDebugPrivilege	3796	f76bc0e1dd77808d3668b3a169155dec.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

f76bc0e1dd77808d3668b3a169155dec.exef76bc0e1dd77808d3668b3a169155dec.exe

description	pid	process	target process
PID 4648 wrote to memory of 3796	4648	f76bc0e1dd77808d3668b3a169155dec.exe	f76bc0e1dd77808d3668b3a169155dec.exe
PID 4648 wrote to memory of 3796	4648	f76bc0e1dd77808d3668b3a169155dec.exe	f76bc0e1dd77808d3668b3a169155dec.exe
PID 4648 wrote to memory of 3796	4648	f76bc0e1dd77808d3668b3a169155dec.exe	f76bc0e1dd77808d3668b3a169155dec.exe
PID 4648 wrote to memory of 3796	4648	f76bc0e1dd77808d3668b3a169155dec.exe	f76bc0e1dd77808d3668b3a169155dec.exe
PID 4648 wrote to memory of 3796	4648	f76bc0e1dd77808d3668b3a169155dec.exe	f76bc0e1dd77808d3668b3a169155dec.exe
PID 4648 wrote to memory of 3796	4648	f76bc0e1dd77808d3668b3a169155dec.exe	f76bc0e1dd77808d3668b3a169155dec.exe
PID 4648 wrote to memory of 3796	4648	f76bc0e1dd77808d3668b3a169155dec.exe	f76bc0e1dd77808d3668b3a169155dec.exe
PID 4648 wrote to memory of 3796	4648	f76bc0e1dd77808d3668b3a169155dec.exe	f76bc0e1dd77808d3668b3a169155dec.exe
PID 3796 wrote to memory of 4196	3796	f76bc0e1dd77808d3668b3a169155dec.exe	schtasks.exe
PID 3796 wrote to memory of 4196	3796	f76bc0e1dd77808d3668b3a169155dec.exe	schtasks.exe
PID 3796 wrote to memory of 4196	3796	f76bc0e1dd77808d3668b3a169155dec.exe	schtasks.exe
PID 3796 wrote to memory of 3344	3796	f76bc0e1dd77808d3668b3a169155dec.exe	schtasks.exe
PID 3796 wrote to memory of 3344	3796	f76bc0e1dd77808d3668b3a169155dec.exe	schtasks.exe
PID 3796 wrote to memory of 3344	3796	f76bc0e1dd77808d3668b3a169155dec.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\f76bc0e1dd77808d3668b3a169155dec.exe
"C:\Users\Admin\AppData\Local\Temp\f76bc0e1dd77808d3668b3a169155dec.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4648
- C:\Users\Admin\AppData\Local\Temp\f76bc0e1dd77808d3668b3a169155dec.exe
  C:\Users\Admin\AppData\Local\Temp\f76bc0e1dd77808d3668b3a169155dec.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:3796
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "UPNP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpBB08.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:4196
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "UPNP Subsystem Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpBC90.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:3344

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Registry Run Keys / Startup Folder

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\f76bc0e1dd77808d3668b3a169155dec.exe.log

MD5
808e884c00533a9eb0e13e64960d9c3a

SHA1
279d05181fc6179a12df1a669ff5d8b64c1380ae

SHA256
2f6a0aab99b1c228a6642f44f8992646ce84c5a2b3b9941b6cf1f2badf67bdd6

SHA512
9489bdb2ffdfeef3c52edcfe9b34c6688eba53eb86075e0564df1cd474723c86b5b5aedc12df1ff5fc12cf97bd1e3cf9701ff61dc4ce90155d70e9ccfd0fc299

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpBB08.tmp

MD5
0e36472bbb85cabd025860b568b4b0cd

SHA1
fc2b0d2e9cae31730d7f74850a925566860688d7

SHA256
d36c5fa12d9aebf93cde212e39ccd9ff3f2c2b40a10639bc617bb97b67cfa366

SHA512
63716f75c4b583a85ed06b8318cd96a3ccf18d9ece302edc0b88fb614cc2519c49a698717619f941e36bc49b40422e264021db82539d2510914386ce03cd40d3

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpBC90.tmp

MD5
af9986f5e128fd8bd3ae748fcba6576d

SHA1
8060072c35108b48649a03be91803b97f1ad40a4

SHA256
f3242f6480b3d1a8f9285135fdce9a201c4802ce062eee4fb41c488a21d53303

SHA512
f35c8e1699905bc972ae48a5a4a9fd33ea04b2d851ffc1cb1d1573a2087121d803b4186a696b2edad10a9c46c388a478e105f5a730020b598aa9f483086dba38

Download Submit
memory/3344-131-0x0000000000000000-mapping.dmp

Download
memory/3796-125-0x0000000005200000-0x0000000005201000-memory.dmp

Filesize
4KB

Download
memory/3796-133-0x0000000005640000-0x0000000005645000-memory.dmp

Filesize
20KB

Download
memory/3796-119-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3796-124-0x0000000005660000-0x0000000005661000-memory.dmp

Filesize
4KB

Download
memory/3796-120-0x000000000041E792-mapping.dmp

Download
memory/3796-126-0x00000000052A0000-0x00000000052A1000-memory.dmp

Filesize
4KB

Download
memory/3796-127-0x0000000005170000-0x0000000005171000-memory.dmp

Filesize
4KB

Download
memory/3796-128-0x0000000005160000-0x000000000565E000-memory.dmp

Filesize
5.0MB

Download
memory/3796-135-0x00000000062F0000-0x00000000062F3000-memory.dmp

Filesize
12KB

Download
memory/3796-134-0x00000000061D0000-0x00000000061E9000-memory.dmp

Filesize
100KB

Download
memory/4196-129-0x0000000000000000-mapping.dmp

Download
memory/4648-114-0x0000000000690000-0x0000000000691000-memory.dmp

Filesize
4KB

Download
memory/4648-116-0x0000000004E70000-0x0000000004E71000-memory.dmp

Filesize
4KB

Download
memory/4648-117-0x0000000005A40000-0x0000000005B4A000-memory.dmp

Filesize
1.0MB

Download
memory/4648-118-0x0000000005F00000-0x0000000005F33000-memory.dmp

Filesize
204KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads