nanocore | 1d41e76da681ad17d46ff9a1fb6f59afb00a8e96df9f2adf42634f05849e6fd2

Analysis

max time kernel
39s
max time network
150s
platform
windows10_x64
resource
win10v20201028
submitted
31/10/2020, 06:49

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General

Target
8cf74500bb24624b63930bf263aafcb0.exe
Size 2.3MB
Sample201031-c9chhb1436
SHA256 1d41e76da681ad17d46ff9a1fb6f59afb00a8e96df9f2adf42634f05849e6fd2
MD5 8cf74500bb24624b63930bf263aafcb0
SHA1 cd14770d70290ca4b5df67b864be97c94e71f606
SHA512 131b78ab31cf72687fe96feba34bd8e08e8da5664feb8051eff22ed414e6b9f5ff32761d7545d91405ef97c0767e3e6de0ccbb210feeff32bab28e6d19ffd4eb
MD5 SHA1 SHA512

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

atacoinc8897.hopto.org:2008
23.105.131.174:2008

Mutex

bfb746e5-9b8d-4b1c-a1bb-8e789ed3c25f

Attributes

activate_away_mode
true
backup_connection_host
23.105.131.174
backup_dns_server
8.8.4.4
buffer_size
65535
build_time
2020-08-06T16:26:00.315332936Z
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
2008
default_group
Default
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
bfb746e5-9b8d-4b1c-a1bb-8e789ed3c25f
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
atacoinc8897.hopto.org
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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3341490333-719741536-2920803124-1000\Software\Microsoft\Windows\CurrentVersion\Run\vlc = "\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\Programs\\VideoLAN\\vlc.exe\""	8cf74500bb24624b63930bf263aafcb0.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\WAN Service = "C:\\Program Files (x86)\\WAN Service\\wansv.exe"	8cf74500bb24624b63930bf263aafcb0.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	8cf74500bb24624b63930bf263aafcb0.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1144 set thread context of 220	1144	8cf74500bb24624b63930bf263aafcb0.exe	78

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\WAN Service\wansv.exe	8cf74500bb24624b63930bf263aafcb0.exe
File opened for modification	C:\Program Files (x86)\WAN Service\wansv.exe	8cf74500bb24624b63930bf263aafcb0.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
1420	schtasks.exe
3232	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
220	8cf74500bb24624b63930bf263aafcb0.exe
220	8cf74500bb24624b63930bf263aafcb0.exe
220	8cf74500bb24624b63930bf263aafcb0.exe
220	8cf74500bb24624b63930bf263aafcb0.exe
220	8cf74500bb24624b63930bf263aafcb0.exe
220	8cf74500bb24624b63930bf263aafcb0.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
220	8cf74500bb24624b63930bf263aafcb0.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1144	8cf74500bb24624b63930bf263aafcb0.exe
Token: SeDebugPrivilege	220	8cf74500bb24624b63930bf263aafcb0.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1144 wrote to memory of 220	1144	8cf74500bb24624b63930bf263aafcb0.exe	78
PID 1144 wrote to memory of 220	1144	8cf74500bb24624b63930bf263aafcb0.exe	78
PID 1144 wrote to memory of 220	1144	8cf74500bb24624b63930bf263aafcb0.exe	78
PID 1144 wrote to memory of 220	1144	8cf74500bb24624b63930bf263aafcb0.exe	78
PID 1144 wrote to memory of 220	1144	8cf74500bb24624b63930bf263aafcb0.exe	78
PID 1144 wrote to memory of 220	1144	8cf74500bb24624b63930bf263aafcb0.exe	78
PID 1144 wrote to memory of 220	1144	8cf74500bb24624b63930bf263aafcb0.exe	78
PID 1144 wrote to memory of 220	1144	8cf74500bb24624b63930bf263aafcb0.exe	78
PID 220 wrote to memory of 1420	220	8cf74500bb24624b63930bf263aafcb0.exe	79
PID 220 wrote to memory of 1420	220	8cf74500bb24624b63930bf263aafcb0.exe	79
PID 220 wrote to memory of 1420	220	8cf74500bb24624b63930bf263aafcb0.exe	79
PID 220 wrote to memory of 3232	220	8cf74500bb24624b63930bf263aafcb0.exe	81
PID 220 wrote to memory of 3232	220	8cf74500bb24624b63930bf263aafcb0.exe	81
PID 220 wrote to memory of 3232	220	8cf74500bb24624b63930bf263aafcb0.exe	81

C:\Users\Admin\AppData\Local\Temp\8cf74500bb24624b63930bf263aafcb0.exe
"C:\Users\Admin\AppData\Local\Temp\8cf74500bb24624b63930bf263aafcb0.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1144
- C:\Users\Admin\AppData\Local\Temp\8cf74500bb24624b63930bf263aafcb0.exe
  "C:\Users\Admin\AppData\Local\Temp\8cf74500bb24624b63930bf263aafcb0.exe"
  2⤵
  - 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:220
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "WAN Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpECB7.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1420
- - C:\Windows\SysWOW64\schtasks.exe
    "schtasks.exe" /create /f /tn "WAN Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpED64.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:3232

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

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/220-19-0x0000000005670000-0x0000000005675000-memory.dmp

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memory/220-25-0x0000000006E20000-0x0000000006E2C000-memory.dmp

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memory/220-34-0x00000000071F0000-0x00000000071F1000-memory.dmp

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memory/220-8-0x0000000073CB0000-0x000000007439E000-memory.dmp

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memory/220-11-0x0000000005AF0000-0x0000000005AF1000-memory.dmp

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memory/220-12-0x00000000054F0000-0x00000000054F1000-memory.dmp

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memory/220-13-0x0000000005690000-0x0000000005691000-memory.dmp

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memory/220-14-0x00000000054C0000-0x00000000054C1000-memory.dmp

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memory/220-33-0x0000000006EE0000-0x0000000006EEF000-memory.dmp

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memory/220-32-0x0000000006EA0000-0x0000000006EC9000-memory.dmp

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memory/220-31-0x0000000006E90000-0x0000000006E9A000-memory.dmp

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memory/220-30-0x0000000006E70000-0x0000000006E7F000-memory.dmp

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memory/220-29-0x0000000006E60000-0x0000000006E69000-memory.dmp

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memory/220-5-0x0000000000400000-0x0000000000438000-memory.dmp

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memory/220-22-0x0000000005870000-0x000000000587D000-memory.dmp

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memory/220-20-0x00000000057B0000-0x00000000057C9000-memory.dmp

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memory/220-23-0x0000000005AD0000-0x0000000005AE5000-memory.dmp

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memory/220-24-0x0000000006E10000-0x0000000006E16000-memory.dmp

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memory/220-21-0x00000000057D0000-0x00000000057D3000-memory.dmp

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memory/220-26-0x0000000006E30000-0x0000000006E36000-memory.dmp

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memory/220-27-0x0000000006E40000-0x0000000006E47000-memory.dmp

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memory/220-28-0x0000000006E50000-0x0000000006E5D000-memory.dmp

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memory/1144-0-0x0000000073CB0000-0x000000007439E000-memory.dmp

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memory/1144-1-0x00000000007A0000-0x00000000007A1000-memory.dmp

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memory/1144-3-0x00000000051D0000-0x0000000005233000-memory.dmp

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memory/1144-4-0x0000000002D30000-0x0000000002D46000-memory.dmp

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