nanocore | 3ac36b3612907df3fd1724900c917c215ef9bf6c5530c81d3b40a1faf7447b90

General

Target

1607d7d6b2337e8417b9c142b195cc37.exe
Size

725KB
MD5

1607d7d6b2337e8417b9c142b195cc37
SHA1

85983779eabc38a060da7401559407a5bbd60873
SHA256

3ac36b3612907df3fd1724900c917c215ef9bf6c5530c81d3b40a1faf7447b90
SHA512

323745e6529be6a8fae56afd9bed9d4fd27c052d0b6ef573d8b66ac785a1232da105fae1189f69afb89cbb9ef39baaa1669cd8edff76460b00402149113cb8f6
SSDEEP

12288:7Sqg5SRF75ea2OXBVxqJnWkLjUOUjekZ90KzvTPluLlQ8f4fMihepn:vRZ5rRxV847pjZbzvTPlCC8f9Fn

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

kasawulli845.ddns.net:5211

127.0.0.1:5211

Mutex

d4cfd040-7e1e-457d-bd2d-3dc785b0760c

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-05-29T06:31:10.522487936Z
bypass_user_account_control
false
bypass_user_account_control_data
PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTE2Ij8+DQo8VGFzayB2ZXJzaW9uPSIxLjIiIHhtbG5zPSJodHRwOi8vc2NoZW1hcy5taWNyb3NvZnQuY29tL3dpbmRvd3MvMjAwNC8wMi9taXQvdGFzayI+DQogIDxSZWdpc3RyYXRpb25JbmZvIC8+DQogIDxUcmlnZ2VycyAvPg0KICA8UHJpbmNpcGFscz4NCiAgICA8UHJpbmNpcGFsIGlkPSJBdXRob3IiPg0KICAgICAgPExvZ29uVHlwZT5JbnRlcmFjdGl2ZVRva2VuPC9Mb2dvblR5cGU+DQogICAgICA8UnVuTGV2ZWw+SGlnaGVzdEF2YWlsYWJsZTwvUnVuTGV2ZWw+DQogICAgPC9QcmluY2lwYWw+DQogIDwvUHJpbmNpcGFscz4NCiAgPFNldHRpbmdzPg0KICAgIDxNdWx0aXBsZUluc3RhbmNlc1BvbGljeT5QYXJhbGxlbDwvTXVsdGlwbGVJbnN0YW5jZXNQb2xpY3k+DQogICAgPERpc2FsbG93U3RhcnRJZk9uQmF0dGVyaWVzPmZhbHNlPC9EaXNhbGxvd1N0YXJ0SWZPbkJhdHRlcmllcz4NCiAgICA8U3RvcElmR29pbmdPbkJhdHRlcmllcz5mYWxzZTwvU3RvcElmR29pbmdPbkJhdHRlcmllcz4NCiAgICA8QWxsb3dIYXJkVGVybWluYXRlPnRydWU8L0FsbG93SGFyZFRlcm1pbmF0ZT4NCiAgICA8U3RhcnRXaGVuQXZhaWxhYmxlPmZhbHNlPC9TdGFydFdoZW5BdmFpbGFibGU+DQogICAgPFJ1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+ZmFsc2U8L1J1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+DQogICAgPElkbGVTZXR0aW5ncz4NCiAgICAgIDxTdG9wT25JZGxlRW5kPmZhbHNlPC9TdG9wT25JZGxlRW5kPg0KICAgICAgPFJlc3RhcnRPbklkbGU+ZmFsc2U8L1Jlc3RhcnRPbklkbGU+DQogICAgPC9JZGxlU2V0dGluZ3M+DQogICAgPEFsbG93U3RhcnRPbkRlbWFuZD50cnVlPC9BbGxvd1N0YXJ0T25EZW1hbmQ+DQogICAgPEVuYWJsZWQ+dHJ1ZTwvRW5hYmxlZD4NCiAgICA8SGlkZGVuPmZhbHNlPC9IaWRkZW4+DQogICAgPFJ1bk9ubHlJZklkbGU+ZmFsc2U8L1J1bk9ubHlJZklkbGU+DQogICAgPFdha2VUb1J1bj5mYWxzZTwvV2FrZVRvUnVuPg0KICAgIDxFeGVjdXRpb25UaW1lTGltaXQ+UFQwUzwvRXhlY3V0aW9uVGltZUxpbWl0Pg0KICAgIDxQcmlvcml0eT40PC9Qcmlvcml0eT4NCiAgPC9TZXR0aW5ncz4NCiAgPEFjdGlvbnMgQ29udGV4dD0iQXV0aG9yIj4NCiAgICA8RXhlYz4NCiAgICAgIDxDb21tYW5kPiIjRVhFQ1VUQUJMRVBBVEgiPC9Db21tYW5kPg0KICAgICAgPEFyZ3VtZW50cz4kKEFyZzApPC9Bcmd1bWVudHM+DQogICAgPC9FeGVjPg0KICA8L0FjdGlvbnM+DQo8L1Rhc2s+
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
5211
default_group
AUGFILE
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
d4cfd040-7e1e-457d-bd2d-3dc785b0760c
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
kasawulli845.ddns.net
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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

1607d7d6b2337e8417b9c142b195cc37.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DOS Host = "C:\\Program Files (x86)\\DOS Host\\doshost.exe"	1607d7d6b2337e8417b9c142b195cc37.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

Processes:

1607d7d6b2337e8417b9c142b195cc37.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	1607d7d6b2337e8417b9c142b195cc37.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

1607d7d6b2337e8417b9c142b195cc37.exe

description pid process target process

PID 3840 set thread context of 3120 3840 1607d7d6b2337e8417b9c142b195cc37.exe 1607d7d6b2337e8417b9c142b195cc37.exe

description	pid	process	target process
PID 3840 set thread context of 3120	3840	1607d7d6b2337e8417b9c142b195cc37.exe	1607d7d6b2337e8417b9c142b195cc37.exe

Drops file in Program Files directory 2 IoCs

Processes:

1607d7d6b2337e8417b9c142b195cc37.exe

description	ioc	process
File created	C:\Program Files (x86)\DOS Host\doshost.exe	1607d7d6b2337e8417b9c142b195cc37.exe
File opened for modification	C:\Program Files (x86)\DOS Host\doshost.exe	1607d7d6b2337e8417b9c142b195cc37.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

3700 schtasks.exe
4428 schtasks.exe

pid	process
3700	schtasks.exe
4428	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

1607d7d6b2337e8417b9c142b195cc37.exe

pid	process
3120	1607d7d6b2337e8417b9c142b195cc37.exe
3120	1607d7d6b2337e8417b9c142b195cc37.exe
3120	1607d7d6b2337e8417b9c142b195cc37.exe
3120	1607d7d6b2337e8417b9c142b195cc37.exe
3120	1607d7d6b2337e8417b9c142b195cc37.exe
3120	1607d7d6b2337e8417b9c142b195cc37.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

1607d7d6b2337e8417b9c142b195cc37.exe

pid process

3120 1607d7d6b2337e8417b9c142b195cc37.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

1607d7d6b2337e8417b9c142b195cc37.exe

description pid process

Token: SeDebugPrivilege 3120 1607d7d6b2337e8417b9c142b195cc37.exe
Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

1607d7d6b2337e8417b9c142b195cc37.exe

pid process

3840 1607d7d6b2337e8417b9c142b195cc37.exe
3840 1607d7d6b2337e8417b9c142b195cc37.exe

description	pid	process
Token: SeDebugPrivilege	3120	1607d7d6b2337e8417b9c142b195cc37.exe

pid	process
3840	1607d7d6b2337e8417b9c142b195cc37.exe
3840	1607d7d6b2337e8417b9c142b195cc37.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

1607d7d6b2337e8417b9c142b195cc37.exe1607d7d6b2337e8417b9c142b195cc37.exe

description	pid	process	target process
PID 3840 wrote to memory of 3120	3840	1607d7d6b2337e8417b9c142b195cc37.exe	1607d7d6b2337e8417b9c142b195cc37.exe
PID 3840 wrote to memory of 3120	3840	1607d7d6b2337e8417b9c142b195cc37.exe	1607d7d6b2337e8417b9c142b195cc37.exe
PID 3840 wrote to memory of 3120	3840	1607d7d6b2337e8417b9c142b195cc37.exe	1607d7d6b2337e8417b9c142b195cc37.exe
PID 3840 wrote to memory of 3120	3840	1607d7d6b2337e8417b9c142b195cc37.exe	1607d7d6b2337e8417b9c142b195cc37.exe
PID 3840 wrote to memory of 3120	3840	1607d7d6b2337e8417b9c142b195cc37.exe	1607d7d6b2337e8417b9c142b195cc37.exe
PID 3840 wrote to memory of 3120	3840	1607d7d6b2337e8417b9c142b195cc37.exe	1607d7d6b2337e8417b9c142b195cc37.exe
PID 3840 wrote to memory of 3120	3840	1607d7d6b2337e8417b9c142b195cc37.exe	1607d7d6b2337e8417b9c142b195cc37.exe
PID 3840 wrote to memory of 3120	3840	1607d7d6b2337e8417b9c142b195cc37.exe	1607d7d6b2337e8417b9c142b195cc37.exe
PID 3120 wrote to memory of 3700	3120	1607d7d6b2337e8417b9c142b195cc37.exe	schtasks.exe
PID 3120 wrote to memory of 3700	3120	1607d7d6b2337e8417b9c142b195cc37.exe	schtasks.exe
PID 3120 wrote to memory of 3700	3120	1607d7d6b2337e8417b9c142b195cc37.exe	schtasks.exe
PID 3120 wrote to memory of 4428	3120	1607d7d6b2337e8417b9c142b195cc37.exe	schtasks.exe
PID 3120 wrote to memory of 4428	3120	1607d7d6b2337e8417b9c142b195cc37.exe	schtasks.exe
PID 3120 wrote to memory of 4428	3120	1607d7d6b2337e8417b9c142b195cc37.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\1607d7d6b2337e8417b9c142b195cc37.exe
"C:\Users\Admin\AppData\Local\Temp\1607d7d6b2337e8417b9c142b195cc37.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3840

C:\Users\Admin\AppData\Local\Temp\1607d7d6b2337e8417b9c142b195cc37.exe
"C:\Users\Admin\AppData\Local\Temp\1607d7d6b2337e8417b9c142b195cc37.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:3120

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "DOS Host" /xml "C:\Users\Admin\AppData\Local\Temp\tmpACF9.tmp"
3⤵
- Creates scheduled task(s)
PID:3700

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "DOS Host Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpADA6.tmp"
3⤵
- Creates scheduled task(s)
PID:4428

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\Temp\tmpACF9.tmp

Filesize
1KB

MD5
c4c5cdc90757c7a84a575ba0bf3d71cb

SHA1
bad1758baef9798c1c803a7a2c75fd5c0b894320

SHA256
df0a1d06af44ae73a86fd2ee0af0a8187a10b9555e47096cdfd6a69d53707625

SHA512
1216ec79989bff2960140fb02cdb44483c77ff8992d297d5df1585f362b2aa74ccefe6420d8f8a53b7219709b84bb57d69137b3a46f1c2ef6b1c9044217e1e3b

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpADA6.tmp

Filesize
1KB

MD5
e380299eb53398115b7125b2b75c4798

SHA1
ee59b86ea0abf4097ff94bd940521c583803b036

SHA256
edb658b6577a80126eaacdf2a566755b63d7b2438fe0bcf3aea83930036811f3

SHA512
d9e3f3b1370fe4fce4a631a5d0669cef34bfe83dec146b606eff562c7cc450639304a732104f425a7ccfdded58064f28a98434a59ed8d93b595d64d1e1a2dde1

Download Submit
memory/3120-141-0x0000000000000000-mapping.dmp

Download
memory/3120-142-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/3700-143-0x0000000000000000-mapping.dmp

Download
memory/3840-135-0x00000000050B0000-0x00000000050BA000-memory.dmp

Filesize
40KB

Download
memory/3840-138-0x0000000007740000-0x0000000007762000-memory.dmp

Filesize
136KB

Download
memory/3840-139-0x000000000A4C0000-0x000000000A55C000-memory.dmp

Filesize
624KB

Download
memory/3840-140-0x000000000A560000-0x000000000A5C6000-memory.dmp

Filesize
408KB

Download
memory/3840-137-0x00000000076F0000-0x0000000007702000-memory.dmp

Filesize
72KB

Download
memory/3840-136-0x0000000005400000-0x00000000055A6000-memory.dmp

Filesize
1.6MB

Download
memory/3840-132-0x0000000000610000-0x00000000006CA000-memory.dmp

Filesize
744KB

Download
memory/3840-134-0x00000000050C0000-0x0000000005152000-memory.dmp

Filesize
584KB

Download
memory/3840-133-0x00000000055D0000-0x0000000005B74000-memory.dmp

Filesize
5.6MB

Download
memory/4428-145-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads