nanocore | c4f0b3610d084b670fbcd8d5405153b208907ac348a190df4cfa41b1dc4f029c

General

Target
PRICE_LIST_06_17_2020.exe
Size 349KB
Sample200624-krtfdblvys
SHA256 c4f0b3610d084b670fbcd8d5405153b208907ac348a190df4cfa41b1dc4f029c
MD5 83bd0f6da5ca0f79ef3ff1d9a305cd4c
SHA1 6958835ec4049e3e510d574126d9f006c201e752
SHA512 54fbaa48ed93ce7bd3a6a3ce95d5b0f508def480d515fe9d753b6a7ca252930ecf7855879309eb8794c74b66b97c55a42894b189baa3589aa5b65946834aefdc
MD5 SHA1 SHA512

Score

10^/10

evasion trojan keylogger stealer spyware nanocore

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

confirma.ooguy.com:6331

Mutex

30552f85-937a-4f77-b342-400643452a1f

Attributes

activate_away_mode
true
backup_connection_host
127.0.0.1
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-03-20T10:22:40.011619036Z
bypass_user_account_control
true
bypass_user_account_control_data
clear_access_control
true
clear_zone_identifier
true
connect_delay
4000
connection_port
6331
default_group
LIQUID METAL
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
30552f85-937a-4f77-b342-400643452a1f
mutex_timeout
5000
prevent_system_sleep
true
primary_connection_host
confirma.ooguy.com
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 use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 880 wrote to memory of 1792	880	PRICE_LIST_06_17_2020.exe	26
PID 880 wrote to memory of 1792	880	PRICE_LIST_06_17_2020.exe	26
PID 880 wrote to memory of 1792	880	PRICE_LIST_06_17_2020.exe	26
PID 880 wrote to memory of 1792	880	PRICE_LIST_06_17_2020.exe	26
PID 880 wrote to memory of 1728	880	PRICE_LIST_06_17_2020.exe	28
PID 880 wrote to memory of 1728	880	PRICE_LIST_06_17_2020.exe	28
PID 880 wrote to memory of 1728	880	PRICE_LIST_06_17_2020.exe	28
PID 880 wrote to memory of 1728	880	PRICE_LIST_06_17_2020.exe	28
PID 880 wrote to memory of 1728	880	PRICE_LIST_06_17_2020.exe	28
PID 880 wrote to memory of 1728	880	PRICE_LIST_06_17_2020.exe	28
PID 880 wrote to memory of 1728	880	PRICE_LIST_06_17_2020.exe	28
PID 880 wrote to memory of 1728	880	PRICE_LIST_06_17_2020.exe	28
PID 880 wrote to memory of 1728	880	PRICE_LIST_06_17_2020.exe	28

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 880 set thread context of 1728	880	PRICE_LIST_06_17_2020.exe	28

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1728	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1728	MSBuild.exe
1728	MSBuild.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1728	MSBuild.exe

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

pid	Process
1792	schtasks.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	MSBuild.exe

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

C:\Users\Admin\AppData\Local\Temp\PRICE_LIST_06_17_2020.exe
"C:\Users\Admin\AppData\Local\Temp\PRICE_LIST_06_17_2020.exe"
1⤵
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
PID:880
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\Wtpofl" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE88A.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1792
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\MSBuild.exe
  "{path}"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Checks whether UAC is enabled
  PID:1728

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

memory/1728-2-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1728-4-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1728-5-0x0000000000400000-0x0000000000438000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads