nanocore | 24bbbef09b9e58d6da0fe8ae7dbfbc093dc5287cb26dc98e948684a1fc442642

General

Target
ALCAZAREN_SA,pdf.exe
Size 466KB
Sample200716-ct2sbej29x
SHA256 24bbbef09b9e58d6da0fe8ae7dbfbc093dc5287cb26dc98e948684a1fc442642
MD5 8b7141743d16877e4680cb695cfc4a06
SHA1 23120ba30158b84527ead4d8a9861f5e4d4c90fb
SHA512 a07d42dcfd5d40b673fb97c083d8239a36d4d20ded760e31506ad3181f4c651602f3b6fe4590ba87ba33dcaf6599a388c99addad28181b4530ec73f7a9c91dfe
MD5 SHA1 SHA512

Score

10^/10

evasion trojan keylogger stealer spyware nanocore

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

billionaire.ddns.net:3734

Mutex

24d8b675-ce49-4a1b-a4a3-dc5d84e97d70

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-03-25T16:42:00.435974836Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
3734
default_group
Billion
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
24d8b675-ce49-4a1b-a4a3-dc5d84e97d70
mutex_timeout
5000
prevent_system_sleep
true
primary_connection_host
billionaire.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 use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 676 wrote to memory of 1868	676	ALCAZAREN_SA,pdf.exe	26
PID 676 wrote to memory of 1868	676	ALCAZAREN_SA,pdf.exe	26
PID 676 wrote to memory of 1868	676	ALCAZAREN_SA,pdf.exe	26
PID 676 wrote to memory of 1868	676	ALCAZAREN_SA,pdf.exe	26
PID 676 wrote to memory of 1768	676	ALCAZAREN_SA,pdf.exe	28
PID 676 wrote to memory of 1768	676	ALCAZAREN_SA,pdf.exe	28
PID 676 wrote to memory of 1768	676	ALCAZAREN_SA,pdf.exe	28
PID 676 wrote to memory of 1768	676	ALCAZAREN_SA,pdf.exe	28
PID 676 wrote to memory of 1908	676	ALCAZAREN_SA,pdf.exe	29
PID 676 wrote to memory of 1908	676	ALCAZAREN_SA,pdf.exe	29
PID 676 wrote to memory of 1908	676	ALCAZAREN_SA,pdf.exe	29
PID 676 wrote to memory of 1908	676	ALCAZAREN_SA,pdf.exe	29
PID 676 wrote to memory of 1908	676	ALCAZAREN_SA,pdf.exe	29
PID 676 wrote to memory of 1908	676	ALCAZAREN_SA,pdf.exe	29
PID 676 wrote to memory of 1908	676	ALCAZAREN_SA,pdf.exe	29
PID 676 wrote to memory of 1908	676	ALCAZAREN_SA,pdf.exe	29
PID 676 wrote to memory of 1908	676	ALCAZAREN_SA,pdf.exe	29
PID 1908 wrote to memory of 468	1908	MSBuild.exe	30
PID 1908 wrote to memory of 468	1908	MSBuild.exe	30
PID 1908 wrote to memory of 468	1908	MSBuild.exe	30
PID 1908 wrote to memory of 468	1908	MSBuild.exe	30

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	676	ALCAZAREN_SA,pdf.exe
Token: SeDebugPrivilege	1908	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
676	ALCAZAREN_SA,pdf.exe
1908	MSBuild.exe
1908	MSBuild.exe
1908	MSBuild.exe
1908	MSBuild.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 676 set thread context of 1908	676	ALCAZAREN_SA,pdf.exe	29

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1908	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

pid	Process
1868	schtasks.exe
468	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\ALCAZAREN_SA,pdf.exe
"C:\Users\Admin\AppData\Local\Temp\ALCAZAREN_SA,pdf.exe"
1⤵
- Suspicious use of WriteProcessMemory
- Suspicious use of AdjustPrivilegeToken
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetThreadContext
PID:676
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\XxjroH" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB7E9.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1868
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "{path}"
  2⤵
  PID:1768
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "{path}"
  2⤵
  - Suspicious use of WriteProcessMemory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Checks whether UAC is enabled
  PID:1908
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "WPA Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpC293.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:468

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/1908-4-0x0000000000400000-0x0000000000438000-memory.dmp

Download

memory/1908-6-0x0000000000400000-0x0000000000438000-memory.dmp

Download

memory/1908-7-0x0000000000400000-0x0000000000438000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads