nanocore | b555dbdcad4c6b11b68bfe29c05f4c46f026f3c8f648f83ca8856dd3b3a9f82c

Analysis

max time kernel
137s
max time network
168s
platform
windows10-2004_x64
resource
win10v2004-20220721-en
resource tags

arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
submitted
25/07/2022, 06:03

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General

Target
426db7c232d53e522642de3508374f51.exe
Size 626KB
Sample220725-gr2jeshhdl
SHA256 b555dbdcad4c6b11b68bfe29c05f4c46f026f3c8f648f83ca8856dd3b3a9f82c
MD5 426db7c232d53e522642de3508374f51
SHA1 dc6e2fc69ae16aabf57634fdf3d470ff986b0952
SHA512 37ce82dee76b29d6d309d3097d721ad97d6fd96f8280ff8254c419ac10285208e0ef85586ea5d74d65c3e94edce437ba62bf3fbcb37dd4a5b73a2fdf2ff26769
MD5 SHA1 SHA512

Score

10^/10

nanocore evasion keylogger persistence spyware stealer suricata trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

jasonbourne.bounceme.net:6754
127.0.0.1:6754

Mutex

e9d74429-3eb4-4129-af20-2014507cbb2b

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-04-29T14:02:59.809548536Z
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
6754
default_group
jasonX
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
e9d74429-3eb4-4129-af20-2014507cbb2b
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
jasonbourne.bounceme.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
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

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DPI Monitor = "C:\\Program Files (x86)\\DPI Monitor\\dpimon.exe"	426db7c232d53e522642de3508374f51.exe

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	426db7c232d53e522642de3508374f51.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1488 set thread context of 2052	1488	426db7c232d53e522642de3508374f51.exe	85

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\DPI Monitor\dpimon.exe	426db7c232d53e522642de3508374f51.exe
File opened for modification	C:\Program Files (x86)\DPI Monitor\dpimon.exe	426db7c232d53e522642de3508374f51.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

pid	Process
1820	schtasks.exe
800	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
2052	426db7c232d53e522642de3508374f51.exe
2052	426db7c232d53e522642de3508374f51.exe
2052	426db7c232d53e522642de3508374f51.exe
2052	426db7c232d53e522642de3508374f51.exe
2052	426db7c232d53e522642de3508374f51.exe
2052	426db7c232d53e522642de3508374f51.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2052	426db7c232d53e522642de3508374f51.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2052	426db7c232d53e522642de3508374f51.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1488 wrote to memory of 2052	1488	426db7c232d53e522642de3508374f51.exe	85
PID 1488 wrote to memory of 2052	1488	426db7c232d53e522642de3508374f51.exe	85
PID 1488 wrote to memory of 2052	1488	426db7c232d53e522642de3508374f51.exe	85
PID 1488 wrote to memory of 2052	1488	426db7c232d53e522642de3508374f51.exe	85
PID 1488 wrote to memory of 2052	1488	426db7c232d53e522642de3508374f51.exe	85
PID 1488 wrote to memory of 2052	1488	426db7c232d53e522642de3508374f51.exe	85
PID 1488 wrote to memory of 2052	1488	426db7c232d53e522642de3508374f51.exe	85
PID 1488 wrote to memory of 2052	1488	426db7c232d53e522642de3508374f51.exe	85
PID 2052 wrote to memory of 1820	2052	426db7c232d53e522642de3508374f51.exe	86
PID 2052 wrote to memory of 1820	2052	426db7c232d53e522642de3508374f51.exe	86
PID 2052 wrote to memory of 1820	2052	426db7c232d53e522642de3508374f51.exe	86
PID 2052 wrote to memory of 800	2052	426db7c232d53e522642de3508374f51.exe	88
PID 2052 wrote to memory of 800	2052	426db7c232d53e522642de3508374f51.exe	88
PID 2052 wrote to memory of 800	2052	426db7c232d53e522642de3508374f51.exe	88

C:\Users\Admin\AppData\Local\Temp\426db7c232d53e522642de3508374f51.exe
"C:\Users\Admin\AppData\Local\Temp\426db7c232d53e522642de3508374f51.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1488
- C:\Users\Admin\AppData\Local\Temp\426db7c232d53e522642de3508374f51.exe
  "C:\Users\Admin\AppData\Local\Temp\426db7c232d53e522642de3508374f51.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:2052
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DPI Monitor" /xml "C:\Users\Admin\AppData\Local\Temp\tmp86C4.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1820
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DPI Monitor Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp8771.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:800

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

426db7c232d53e522642de3508374f51.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\426db7c232d53e522642de3508374f51.exe.log
Size 1KB
SHA256 bd9d5e9f7fe6fcff17d873555d4077d15f7d6cdda1183e7f7d278b735ffe1fd7
MD5 e08f822522c617a40840c62e4b0fb45e
SHA1 ae516dca4da5234be6676d3f234c19ec55725be7
SHA512 894a7fb7bbc18ac6ba13378f58a7db80ad00d6080be9a66b01cae8e23e41d9d2d4cd53c1e20669356b73590c8a3ebfda4bdda3258f81240db56c4a81b7313fe4
MD5 SHA1 SHA512

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tmp86C4.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp86C4.tmp
Size 1KB
SHA256 8d7ddb840579ad6f324c01877e8a7883f2a156242f6c5e277a298d5bb7ab3603
MD5 1a5af8f08bd02a36bb86a080a7bfe4a8
SHA1 02acac250fdc227a2056886a3d1f8ed87422d1fc
SHA512 839d706be9c86124045b0990b9917b3aba64e402555d8664c06488b18ee7731858e756cea5d1543c3590c4bb50160334b397868d99b47e3394fedbc9c8d15352
MD5 SHA1 SHA512

Submit Download

tmp8771.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp8771.tmp
Size 1KB
SHA256 ca607854bb6d7a457f80fdadeaf62a5471a71824defc531136c4b8a8452af426
MD5 fb16df60656546f3eed87417838a3342
SHA1 5c8cd1b4fdd2fa57a31fe30a65e332c30a20b4bc
SHA512 2a56a040dee5c375ef8bdffa7c4f3f0a379bcc387655201f744e8fc99e57a6ed3afdbb92f63b783e8d4354e62908c80e8e7aac1636748a117e1507f2ec0f35e8
MD5 SHA1 SHA512

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memory/1488-131-0x0000000005030000-0x00000000055D4000-memory.dmp

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memory/1488-132-0x0000000004B20000-0x0000000004BB2000-memory.dmp

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memory/1488-133-0x00000000025F0000-0x00000000025FA000-memory.dmp

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memory/1488-134-0x000000000A150000-0x000000000A1EC000-memory.dmp

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memory/1488-135-0x000000000A1F0000-0x000000000A256000-memory.dmp

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memory/1488-130-0x0000000000010000-0x00000000000B2000-memory.dmp

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memory/2052-137-0x0000000000400000-0x0000000000438000-memory.dmp

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