nanocore | f6b61f6f257283d5994aec8ef9755d786fecfe124fd007bdf676a92bedd4efc5

General

Target

Folha de dados de cotação para nossa empresa doc.exe
Size

353KB
MD5

d2218723958925fa4f1db0e3c8fcd5ec
SHA1

be24d6aa66b1e33b1d17fa749e76dad3a57ec0df
SHA256

18d75d5ac1ab85ab35e56305bcda420a6afd91c431ff002d2ba4887cdfd6fb1e
SHA512

133b83bd4109e0c1adf36c4f05753a2f2d74e11a8dc2cf8350e609f028caa791152055cd591a66ce2ac83f12ffd84abf0cab3d8627e9a7e802780f005a9f967f

Score

10^/10

nanocore evasion keylogger spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

24thmatch2020.duckdns.org:5626

127.0.0.1:5626

Mutex

1d5c6dc1-3b0f-4759-9757-c47b26dc4c4d

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-04-05T07:10:58.206265736Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
true
connect_delay
4000
connection_port
5626
default_group
24thMarch
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
1d5c6dc1-3b0f-4759-9757-c47b26dc4c4d
mutex_timeout
5000
prevent_system_sleep
true
primary_connection_host
24thmatch2020.duckdns.org
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

NanoCore
NanoCore is a remote access tool (RAT) with a variety of capabilities.
keylogger trojan stealer spyware nanocore
Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

Folha de dados de cotação para nossa empresa doc.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	Folha de dados de cotação para nossa empresa doc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	Folha de dados de cotação para nossa empresa doc.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

Folha de dados de cotação para nossa empresa doc.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	Folha de dados de cotação para nossa empresa doc.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	Folha de dados de cotação para nossa empresa doc.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Folha de dados de cotação para nossa empresa doc.exe

description pid process target process

PID 1800 set thread context of 824 1800 Folha de dados de cotação para nossa empresa doc.exe MSBuild.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1780 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

MSBuild.exe

pid process

824 MSBuild.exe
824 MSBuild.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

MSBuild.exe

description pid process

Token: SeDebugPrivilege 824 MSBuild.exe

description	pid	process	target process
PID 1800 set thread context of 824	1800	Folha de dados de cotação para nossa empresa doc.exe	MSBuild.exe

pid	process
1780	schtasks.exe

pid	process
824	MSBuild.exe
824	MSBuild.exe

description	pid	process
Token: SeDebugPrivilege	824	MSBuild.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

Folha de dados de cotação para nossa empresa doc.exe

description	pid	process	target process
PID 1800 wrote to memory of 1780	1800	Folha de dados de cotação para nossa empresa doc.exe	schtasks.exe
PID 1800 wrote to memory of 1780	1800	Folha de dados de cotação para nossa empresa doc.exe	schtasks.exe
PID 1800 wrote to memory of 1780	1800	Folha de dados de cotação para nossa empresa doc.exe	schtasks.exe
PID 1800 wrote to memory of 1780	1800	Folha de dados de cotação para nossa empresa doc.exe	schtasks.exe
PID 1800 wrote to memory of 824	1800	Folha de dados de cotação para nossa empresa doc.exe	MSBuild.exe
PID 1800 wrote to memory of 824	1800	Folha de dados de cotação para nossa empresa doc.exe	MSBuild.exe
PID 1800 wrote to memory of 824	1800	Folha de dados de cotação para nossa empresa doc.exe	MSBuild.exe
PID 1800 wrote to memory of 824	1800	Folha de dados de cotação para nossa empresa doc.exe	MSBuild.exe
PID 1800 wrote to memory of 824	1800	Folha de dados de cotação para nossa empresa doc.exe	MSBuild.exe
PID 1800 wrote to memory of 824	1800	Folha de dados de cotação para nossa empresa doc.exe	MSBuild.exe
PID 1800 wrote to memory of 824	1800	Folha de dados de cotação para nossa empresa doc.exe	MSBuild.exe
PID 1800 wrote to memory of 824	1800	Folha de dados de cotação para nossa empresa doc.exe	MSBuild.exe
PID 1800 wrote to memory of 824	1800	Folha de dados de cotação para nossa empresa doc.exe	MSBuild.exe

C:\Users\Admin\AppData\Local\Temp\Folha de dados de cotação para nossa empresa doc.exe
"C:\Users\Admin\AppData\Local\Temp\Folha de dados de cotação para nossa empresa doc.exe"
1⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1800

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zUkqffZjrSgg" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6568.tmp"
2⤵
- Creates scheduled task(s)
PID:1780

C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
"{path}"
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:824

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

3

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp6568.tmp
Filesize
1KB

MD5
d01f05f8297c3bf9bb7d53db6e985b6d

SHA1
4dd46f5f7685460c2c69c6451a740cea4980b9f1

SHA256
3e0748800a93e0967d5c0bb0879d4d3bfa223d5e9c6b8fea2b6ee590a1dec95f

SHA512
7cfdc2e6dfb93bc629015c68cf737484f273e62014600a5cf6f95c3614b08b01231fa91644fc98914cfc8b265794678fbd7bc61b96528333bcadebf8345c0bc4

Download Submit
memory/824-62-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/824-58-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/824-61-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/824-59-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/824-64-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/824-65-0x000000000041E792-mapping.dmp

Download
memory/824-67-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/824-69-0x0000000000400000-0x0000000000438000-memory.dmp

Filesize
224KB

Download
memory/824-71-0x00000000745C0000-0x0000000074B6B000-memory.dmp

Filesize
5.7MB

Download
memory/824-72-0x0000000000D06000-0x0000000000D17000-memory.dmp

Filesize
68KB

Download
memory/1780-56-0x0000000000000000-mapping.dmp

Download
memory/1800-55-0x00000000745C0000-0x0000000074B6B000-memory.dmp

Filesize
5.7MB

Download
memory/1800-54-0x0000000074E91000-0x0000000074E93000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads