nanocore | 2fd9f9784c8b9678b08dcb94886985fa7835d0135ea12689082e0bf604c19bbb

General

Target

SCAN_DOCUMENT.exe
Size

830KB
MD5

ea9139664e5a3182dbafcdc476785de1
SHA1

99c7d0ad63c2bca8bb61dbc4fa65c01dfad9cce4
SHA256

2fd9f9784c8b9678b08dcb94886985fa7835d0135ea12689082e0bf604c19bbb
SHA512

c919c173ed1ce5c7acb9e9873b0b70e481934533a9dbd9414dafacb9acd977809536ec993bc7a31792a2df861b6e1d1d190a832d8926f0cc2096fe4257187fb8

Score

10^/10

evasion trojan keylogger stealer spyware nanocore

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

frank3000.ddns.net:4983

Mutex

53dd63cb-dcb6-4eb8-bea2-1c572110bc62

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-04-10T23:12:52.316007036Z
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
true
connect_delay
4000
connection_port
4983
default_group
Frank
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
53dd63cb-dcb6-4eb8-bea2-1c572110bc62
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
frank3000.ddns.net
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
true
set_critical_process
true
timeout_interval
5000
use_custom_dns_server
false
version
1.2.2.0
wan_timeout
8000

Signatures

Suspicious behavior: EnumeratesProcesses 6 IoCs

Processes:

SCAN_DOCUMENT.exeMSBuild.exe

pid process

1080 SCAN_DOCUMENT.exe
1080 SCAN_DOCUMENT.exe
1620 MSBuild.exe
1620 MSBuild.exe
1620 MSBuild.exe
1620 MSBuild.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

SCAN_DOCUMENT.exe

description pid process target process

PID 1080 set thread context of 1620 1080 SCAN_DOCUMENT.exe MSBuild.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

MSBuild.exe

pid process

1620 MSBuild.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

1432 schtasks.exe
1120 schtasks.exe
Checks whether UAC is enabled 1 TTPs 1 IoCs
evasion trojan

System Information Discovery
T1082

Processes:

MSBuild.exe

description ioc process

Key value queried \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA MSBuild.exe
NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore

pid	process
1080	SCAN_DOCUMENT.exe
1080	SCAN_DOCUMENT.exe
1620	MSBuild.exe
1620	MSBuild.exe
1620	MSBuild.exe
1620	MSBuild.exe

description	pid	process	target process
PID 1080 set thread context of 1620	1080	SCAN_DOCUMENT.exe	MSBuild.exe

pid	process
1620	MSBuild.exe

pid	process
1432	schtasks.exe
1120	schtasks.exe

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

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

SCAN_DOCUMENT.exeMSBuild.exe

description	pid	process	target process
PID 1080 wrote to memory of 1432	1080	SCAN_DOCUMENT.exe	schtasks.exe
PID 1080 wrote to memory of 1432	1080	SCAN_DOCUMENT.exe	schtasks.exe
PID 1080 wrote to memory of 1432	1080	SCAN_DOCUMENT.exe	schtasks.exe
PID 1080 wrote to memory of 1432	1080	SCAN_DOCUMENT.exe	schtasks.exe
PID 1080 wrote to memory of 296	1080	SCAN_DOCUMENT.exe	MSBuild.exe
PID 1080 wrote to memory of 296	1080	SCAN_DOCUMENT.exe	MSBuild.exe
PID 1080 wrote to memory of 296	1080	SCAN_DOCUMENT.exe	MSBuild.exe
PID 1080 wrote to memory of 296	1080	SCAN_DOCUMENT.exe	MSBuild.exe
PID 1080 wrote to memory of 1620	1080	SCAN_DOCUMENT.exe	MSBuild.exe
PID 1080 wrote to memory of 1620	1080	SCAN_DOCUMENT.exe	MSBuild.exe
PID 1080 wrote to memory of 1620	1080	SCAN_DOCUMENT.exe	MSBuild.exe
PID 1080 wrote to memory of 1620	1080	SCAN_DOCUMENT.exe	MSBuild.exe
PID 1080 wrote to memory of 1620	1080	SCAN_DOCUMENT.exe	MSBuild.exe
PID 1080 wrote to memory of 1620	1080	SCAN_DOCUMENT.exe	MSBuild.exe
PID 1080 wrote to memory of 1620	1080	SCAN_DOCUMENT.exe	MSBuild.exe
PID 1080 wrote to memory of 1620	1080	SCAN_DOCUMENT.exe	MSBuild.exe
PID 1080 wrote to memory of 1620	1080	SCAN_DOCUMENT.exe	MSBuild.exe
PID 1620 wrote to memory of 1120	1620	MSBuild.exe	schtasks.exe
PID 1620 wrote to memory of 1120	1620	MSBuild.exe	schtasks.exe
PID 1620 wrote to memory of 1120	1620	MSBuild.exe	schtasks.exe
PID 1620 wrote to memory of 1120	1620	MSBuild.exe	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

SCAN_DOCUMENT.exeMSBuild.exe

description pid process

Token: SeDebugPrivilege 1080 SCAN_DOCUMENT.exe
Token: SeDebugPrivilege 1620 MSBuild.exe

description	pid	process
Token: SeDebugPrivilege	1080	SCAN_DOCUMENT.exe
Token: SeDebugPrivilege	1620	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\SCAN_DOCUMENT.exe
"C:\Users\Admin\AppData\Local\Temp\SCAN_DOCUMENT.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
- Suspicious use of AdjustPrivilegeToken
PID:1080

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rEYWzsvqW" /XML "C:\Users\Admin\AppData\Local\Temp\tmp98E4.tmp"
2⤵
- Creates scheduled task(s)
PID:1432

C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
"{path}"
2⤵
PID:296

C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
"{path}"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Checks whether UAC is enabled
- Suspicious use of WriteProcessMemory
- Suspicious use of AdjustPrivilegeToken
PID:1620

C:\Windows\SysWOW64\schtasks.exe
"schtasks.exe" /create /f /tn "WAN Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmp9D76.tmp"
3⤵
- Creates scheduled task(s)
PID:1120

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

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\tmp98E4.tmp

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C:\Users\Admin\AppData\Local\Temp\tmp9D76.tmp

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memory/1120-6-0x0000000000000000-mapping.dmp

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memory/1432-0-0x0000000000000000-mapping.dmp

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memory/1620-2-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

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memory/1620-3-0x000000000041E792-mapping.dmp

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memory/1620-4-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

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memory/1620-5-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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