nanocore | f19e8ff99a9037ceaf1e4bb1c3ea78529c755fc6dd0be5f26fd8b7d1269d712b

General

Target
Doc_034_scan.exe
Size 851KB
Sample200720-43rtmf1aja
SHA256 f19e8ff99a9037ceaf1e4bb1c3ea78529c755fc6dd0be5f26fd8b7d1269d712b
MD5 4ac0175c3d3cf6f4cad74bb1bf8da361
SHA1 521aec04d7ccf273ae7df9edff8d073398773367
SHA512 38e5e565b24ef8c8ef099ae8cd568cd67a0999496918195f56e597b9e515b6d99ab41ca7746fc678b7d83d9205e58850498b0189c9b5a95ac5f817b375c0285f
MD5 SHA1 SHA512

Score

10^/10

evasion trojan keylogger stealer spyware nanocore

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

C2

williamfred.ddns.net:4983

Mutex

562f8cc6-62c0-48c3-ab04-5d447dce6a16

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-04-25T18:54:52.901980236Z
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
4983
default_group
william
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
562f8cc6-62c0-48c3-ab04-5d447dce6a16
mutex_timeout
5000
prevent_system_sleep
true
primary_connection_host
williamfred.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

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

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1156 wrote to memory of 1444	1156	Doc_034_scan.exe	24
PID 1156 wrote to memory of 1444	1156	Doc_034_scan.exe	24
PID 1156 wrote to memory of 1444	1156	Doc_034_scan.exe	24
PID 1156 wrote to memory of 1444	1156	Doc_034_scan.exe	24
PID 1156 wrote to memory of 276	1156	Doc_034_scan.exe	26
PID 1156 wrote to memory of 276	1156	Doc_034_scan.exe	26
PID 1156 wrote to memory of 276	1156	Doc_034_scan.exe	26
PID 1156 wrote to memory of 276	1156	Doc_034_scan.exe	26
PID 1156 wrote to memory of 276	1156	Doc_034_scan.exe	26
PID 1156 wrote to memory of 276	1156	Doc_034_scan.exe	26
PID 1156 wrote to memory of 276	1156	Doc_034_scan.exe	26
PID 1156 wrote to memory of 276	1156	Doc_034_scan.exe	26
PID 1156 wrote to memory of 276	1156	Doc_034_scan.exe	26
PID 276 wrote to memory of 884	276	MSBuild.exe	27
PID 276 wrote to memory of 884	276	MSBuild.exe	27
PID 276 wrote to memory of 884	276	MSBuild.exe	27
PID 276 wrote to memory of 884	276	MSBuild.exe	27

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1156 set thread context of 276	1156	Doc_034_scan.exe	26

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	276	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
276	MSBuild.exe
276	MSBuild.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
276	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
1444	schtasks.exe
884	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

C:\Users\Admin\AppData\Local\Temp\Doc_034_scan.exe
"C:\Users\Admin\AppData\Local\Temp\Doc_034_scan.exe"
1⤵
- Suspicious use of WriteProcessMemory
- Suspicious use of SetThreadContext
PID:1156
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CibXhTEf" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB9AD.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1444
- 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:276
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "WAN Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpBF87.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:884

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/276-4-0x0000000000400000-0x0000000000438000-memory.dmp

Download

memory/276-6-0x0000000000400000-0x0000000000438000-memory.dmp

Download

memory/276-7-0x0000000000400000-0x0000000000438000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads