nanocore | a041901d7e7a00b59fb1c4a4e1b2cdb7e9acd7c554d0a13412e658cb42cf0d5b

Analysis

max time kernel
134s
max time network
146s
platform
windows10_x64
resource
win10
submitted
09/10/2020, 09:09

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General

Target
I6sSftkh08BcVNE.exe
Size 699KB
Sample201009-13tfthnh62
SHA256 a041901d7e7a00b59fb1c4a4e1b2cdb7e9acd7c554d0a13412e658cb42cf0d5b
MD5 d79ef230c315ac078d0c9723e795cf7e
SHA1 97469977708ff1ecb1985268818635df79abf2db
SHA512 1955e7152c97cc78569ac52c2e0501946321e8018ba2155d4a881225b18d4101bbbd8e62c18159c004b9d28adc48232d2cd848410c20de5521a632ca7cc1e155
MD5 SHA1 SHA512

Score

10^/10

keylogger trojan stealer spyware nanocore

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

79.134.225.103:1985

Mutex

f98b642a-cbbd-4ec8-acf3-dec37cf005ed

Attributes

activate_away_mode
true
backup_connection_host
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-07-18T03:42:32.065333336Z
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
1985
default_group
SLAVES
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
f98b642a-cbbd-4ec8-acf3-dec37cf005ed
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
79.134.225.103
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
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1656 set thread context of 1752	1656	I6sSftkh08BcVNE.exe	78
PID 1752 set thread context of 2796	1752	RegSvcs.exe	81
PID 1752 set thread context of 4060	1752	RegSvcs.exe	82

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
1380	schtasks.exe
1620	schtasks.exe

Suspicious behavior: EnumeratesProcesses 12 IoCs

pid	Process
1656	I6sSftkh08BcVNE.exe
1656	I6sSftkh08BcVNE.exe
1656	I6sSftkh08BcVNE.exe
1656	I6sSftkh08BcVNE.exe
1752	RegSvcs.exe
1752	RegSvcs.exe
1752	RegSvcs.exe
1752	RegSvcs.exe
1752	RegSvcs.exe
1752	RegSvcs.exe
4060	vbc.exe
4060	vbc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1752	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1656	I6sSftkh08BcVNE.exe
Token: SeDebugPrivilege	1752	RegSvcs.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 1656 wrote to memory of 1380	1656	I6sSftkh08BcVNE.exe	76
PID 1656 wrote to memory of 1380	1656	I6sSftkh08BcVNE.exe	76
PID 1656 wrote to memory of 1380	1656	I6sSftkh08BcVNE.exe	76
PID 1656 wrote to memory of 1752	1656	I6sSftkh08BcVNE.exe	78
PID 1656 wrote to memory of 1752	1656	I6sSftkh08BcVNE.exe	78
PID 1656 wrote to memory of 1752	1656	I6sSftkh08BcVNE.exe	78
PID 1656 wrote to memory of 1752	1656	I6sSftkh08BcVNE.exe	78
PID 1656 wrote to memory of 1752	1656	I6sSftkh08BcVNE.exe	78
PID 1656 wrote to memory of 1752	1656	I6sSftkh08BcVNE.exe	78
PID 1656 wrote to memory of 1752	1656	I6sSftkh08BcVNE.exe	78
PID 1656 wrote to memory of 1752	1656	I6sSftkh08BcVNE.exe	78
PID 1752 wrote to memory of 1620	1752	RegSvcs.exe	79
PID 1752 wrote to memory of 1620	1752	RegSvcs.exe	79
PID 1752 wrote to memory of 1620	1752	RegSvcs.exe	79
PID 1752 wrote to memory of 2796	1752	RegSvcs.exe	81
PID 1752 wrote to memory of 2796	1752	RegSvcs.exe	81
PID 1752 wrote to memory of 2796	1752	RegSvcs.exe	81
PID 1752 wrote to memory of 2796	1752	RegSvcs.exe	81
PID 1752 wrote to memory of 2796	1752	RegSvcs.exe	81
PID 1752 wrote to memory of 2796	1752	RegSvcs.exe	81
PID 1752 wrote to memory of 2796	1752	RegSvcs.exe	81
PID 1752 wrote to memory of 2796	1752	RegSvcs.exe	81
PID 1752 wrote to memory of 2796	1752	RegSvcs.exe	81
PID 1752 wrote to memory of 4060	1752	RegSvcs.exe	82
PID 1752 wrote to memory of 4060	1752	RegSvcs.exe	82
PID 1752 wrote to memory of 4060	1752	RegSvcs.exe	82
PID 1752 wrote to memory of 4060	1752	RegSvcs.exe	82
PID 1752 wrote to memory of 4060	1752	RegSvcs.exe	82
PID 1752 wrote to memory of 4060	1752	RegSvcs.exe	82
PID 1752 wrote to memory of 4060	1752	RegSvcs.exe	82
PID 1752 wrote to memory of 4060	1752	RegSvcs.exe	82
PID 1752 wrote to memory of 4060	1752	RegSvcs.exe	82

C:\Users\Admin\AppData\Local\Temp\I6sSftkh08BcVNE.exe
"C:\Users\Admin\AppData\Local\Temp\I6sSftkh08BcVNE.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1656
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gdxVtS" /XML "C:\Users\Admin\AppData\Local\Temp\tmpB183.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1380
- C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegSvcs.exe
  "{path}"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1752
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "DDP Subsystem" /xml "C:\Users\Admin\AppData\Local\Temp\tmpB432.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1620
- - \??\c:\windows\microsoft.net\framework\v2.0.50727\vbc.exe
    "c:\windows\microsoft.net\framework\v2.0.50727\vbc.exe" /shtml "C:\Users\Admin\AppData\Local\Temp\wcdyr43j.1qy"
    3⤵
    PID:2796
- - \??\c:\windows\microsoft.net\framework\v2.0.50727\vbc.exe
    "c:\windows\microsoft.net\framework\v2.0.50727\vbc.exe" /shtml "C:\Users\Admin\AppData\Local\Temp\aayafsrc.z4h"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:4060

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Scripting

T1064

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Scripting

T1064

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/1752-2-0x0000000000400000-0x0000000000438000-memory.dmp

Download

memory/2796-8-0x0000000000400000-0x000000000041B000-memory.dmp

Download

memory/2796-6-0x0000000000400000-0x000000000041B000-memory.dmp

Download

memory/4060-10-0x0000000000400000-0x0000000000453000-memory.dmp

Download

memory/4060-12-0x0000000000400000-0x0000000000453000-memory.dmp

Download