nanocore | ee4877cf6e3c168ca1679689260b28bcbf2add22086b1578c062979263b39c00

Analysis

max time kernel
152s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
02/02/2024, 02:39

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General

Target
8855e249d5db6eb70f7c425fdc67239c.exe
Size 776KB
Sample240202-c5jtbaecfk
SHA256 ee4877cf6e3c168ca1679689260b28bcbf2add22086b1578c062979263b39c00
MD5 8855e249d5db6eb70f7c425fdc67239c
SHA1 7adb0897389cbdb5c8e3e1caaa0c4e784fe830c0
SHA512 dbb7258781263e70204eaac517645fbc23ae6474d06bb467b83e8a6838f891d92287d496611303a6d7d4d5a2260541f38c99b8ca867e65adae007493bc476ac5
SSDEEP 12288:2oNtU/XYgDdeG+rmELX8PYprcpPwip6RtibxugqYO0IFSy6vPMcxlNwDoFCz6WV3:XQYmUXrmELXtp49wiEiFxqhrG
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

innocentbooii.hopto.org:55420
172.111.249.15:55420

Mutex

df67ef8e-9463-4065-9e3a-1974440f26c8

Attributes

activate_away_mode
false
backup_connection_host
172.111.249.15
backup_dns_server
buffer_size
65538
build_time
2021-05-27T22:15:02.586140836Z
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
false
clear_zone_identifier
false
connect_delay
4000
connection_port
55420
default_group
000
enable_debug_mode
true
gc_threshold
1.0485772e+07
keep_alive_timeout
30000
keyboard_logging
false
lan_timeout
2500
max_packet_size
1.0485772e+07
mutex
df67ef8e-9463-4065-9e3a-1974440f26c8
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
innocentbooii.hopto.org
primary_dns_server
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
false
set_critical_process
false
timeout_interval
5000
use_custom_dns_server
false
version
1.2.2.0
wan_timeout
8009

Signatures

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation	8855e249d5db6eb70f7c425fdc67239c.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DHCP Service = "C:\\Program Files (x86)\\DHCP Service\\dhcpsvc.exe"	8855e249d5db6eb70f7c425fdc67239c.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	8855e249d5db6eb70f7c425fdc67239c.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3452 set thread context of 4120	3452	8855e249d5db6eb70f7c425fdc67239c.exe	93

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\DHCP Service\dhcpsvc.exe	8855e249d5db6eb70f7c425fdc67239c.exe
File opened for modification	C:\Program Files (x86)\DHCP Service\dhcpsvc.exe	8855e249d5db6eb70f7c425fdc67239c.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 3 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task/Job

T1053

pid	Process
4020	schtasks.exe
3272	schtasks.exe
2888	schtasks.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3452	8855e249d5db6eb70f7c425fdc67239c.exe
4120	8855e249d5db6eb70f7c425fdc67239c.exe
4120	8855e249d5db6eb70f7c425fdc67239c.exe
4120	8855e249d5db6eb70f7c425fdc67239c.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4120	8855e249d5db6eb70f7c425fdc67239c.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3452	8855e249d5db6eb70f7c425fdc67239c.exe
Token: SeDebugPrivilege	4120	8855e249d5db6eb70f7c425fdc67239c.exe
Token: SeDebugPrivilege	4120	8855e249d5db6eb70f7c425fdc67239c.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 3452 wrote to memory of 4020	3452	8855e249d5db6eb70f7c425fdc67239c.exe	91
PID 3452 wrote to memory of 4020	3452	8855e249d5db6eb70f7c425fdc67239c.exe	91
PID 3452 wrote to memory of 4020	3452	8855e249d5db6eb70f7c425fdc67239c.exe	91
PID 3452 wrote to memory of 4120	3452	8855e249d5db6eb70f7c425fdc67239c.exe	93
PID 3452 wrote to memory of 4120	3452	8855e249d5db6eb70f7c425fdc67239c.exe	93
PID 3452 wrote to memory of 4120	3452	8855e249d5db6eb70f7c425fdc67239c.exe	93
PID 3452 wrote to memory of 4120	3452	8855e249d5db6eb70f7c425fdc67239c.exe	93
PID 3452 wrote to memory of 4120	3452	8855e249d5db6eb70f7c425fdc67239c.exe	93
PID 3452 wrote to memory of 4120	3452	8855e249d5db6eb70f7c425fdc67239c.exe	93
PID 3452 wrote to memory of 4120	3452	8855e249d5db6eb70f7c425fdc67239c.exe	93
PID 3452 wrote to memory of 4120	3452	8855e249d5db6eb70f7c425fdc67239c.exe	93
PID 4120 wrote to memory of 3272	4120	8855e249d5db6eb70f7c425fdc67239c.exe	94
PID 4120 wrote to memory of 3272	4120	8855e249d5db6eb70f7c425fdc67239c.exe	94
PID 4120 wrote to memory of 3272	4120	8855e249d5db6eb70f7c425fdc67239c.exe	94
PID 4120 wrote to memory of 2888	4120	8855e249d5db6eb70f7c425fdc67239c.exe	96
PID 4120 wrote to memory of 2888	4120	8855e249d5db6eb70f7c425fdc67239c.exe	96
PID 4120 wrote to memory of 2888	4120	8855e249d5db6eb70f7c425fdc67239c.exe	96

C:\Users\Admin\AppData\Local\Temp\8855e249d5db6eb70f7c425fdc67239c.exe
"C:\Users\Admin\AppData\Local\Temp\8855e249d5db6eb70f7c425fdc67239c.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3452
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\IXjaKf" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC2ED.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:4020
- C:\Users\Admin\AppData\Local\Temp\8855e249d5db6eb70f7c425fdc67239c.exe
  "{path}"
  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:4120
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DHCP Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD56C.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:3272
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DHCP Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpD667.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:2888

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

8855e249d5db6eb70f7c425fdc67239c.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\8855e249d5db6eb70f7c425fdc67239c.exe.log
Size 496B
SHA256 8d0edecf54cbbdf7981c8e41a3ed8621503188a87415f9af0fb8d890b138c349
MD5 cb76b18ebed3a9f05a14aed43d35fba6
SHA1 836a4b4e351846fca08b84149cb734cb59b8c0d6
SHA512 7631141e4a6dda29452ada666326837372cd3d045f773006f63d9eff15d9432ed00029d9108a72c1a3b858377600a2aab2c9ec03764285c8801b6019babcf21c
MD5 SHA1 SHA512

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tmpC2ED.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpC2ED.tmp
Size 1KB
SHA256 04cbc1416296c55121764d1f6a90d5cfc3025fc728a6cfbeeaea3a3803a668c6
MD5 f1a2b579ddfa7ec9aa2fe2a81cfc144b
SHA1 5e6c386fa29cba233701a55004729168a83c9314
SHA512 aded31f7dd214c4fe6f8499c0b2b7dedfe67d460fbefffd8f496d82886c16669e5a82af7d612ec14aaaf6977c421a2f7119f253f48ee8e3598cac03b85b970e3
MD5 SHA1 SHA512

Submit Download

tmpD56C.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpD56C.tmp
Size 1KB
SHA256 995a3879503dba4a0b2ca5fbc21e0ab3526f37dfcbeada40ca1c34089989dba0
MD5 5ecca2c7a5ecb18569d01ae50e273a39
SHA1 4f597b6ded81127706fef74f7f021b757c07b66d
SHA512 ef61b755f627319b9ee253d675ff1e2263e7e76c7af8461a1745b8fc9a426953e9ea6392919ed8f9c26b9cb950a7015129ffbe39c8158ffb5e0261e90871bc26
MD5 SHA1 SHA512

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tmpD667.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmpD667.tmp
Size 1KB
SHA256 39b16b3a00b6b43c6820357127228c0768a577153014ce7b0ea3c585244dc08b
MD5 7f4b37265a0a4b0fea67999d11d911e8
SHA1 1b8e13e6a27c3768c30cf713b79eaa8a757e1349
SHA512 ef97ccfb663555aedc7fdc4b3ac4cd6536c80a778b4ec3bc6124a09544733988de1dac1e6a3714b0d6e8713e3523e0732d5dfcf674f2c5e1f3eadacb0c8e5e03
MD5 SHA1 SHA512

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memory/3452-3-0x0000000074C80000-0x0000000075231000-memory.dmp

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memory/3452-0-0x0000000074C80000-0x0000000075231000-memory.dmp

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memory/3452-2-0x0000000000A70000-0x0000000000A80000-memory.dmp

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memory/3452-1-0x0000000074C80000-0x0000000075231000-memory.dmp

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memory/3452-11-0x0000000074C80000-0x0000000075231000-memory.dmp

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memory/4120-13-0x00000000017B0000-0x00000000017C0000-memory.dmp

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memory/4120-12-0x0000000074C80000-0x0000000075231000-memory.dmp

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memory/4120-10-0x0000000074C80000-0x0000000075231000-memory.dmp

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memory/4120-7-0x0000000000400000-0x000000000043A000-memory.dmp

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memory/4120-21-0x00000000017B0000-0x00000000017C0000-memory.dmp

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memory/4120-22-0x0000000074C80000-0x0000000075231000-memory.dmp

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memory/4120-23-0x00000000017B0000-0x00000000017C0000-memory.dmp

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memory/4120-24-0x00000000017B0000-0x00000000017C0000-memory.dmp

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