nanocore | 362ae494bfed3fd5e8137a652139777f3a986bf63fbcd17e74bb9c1f0e2cd500

Analysis

max time kernel
93s
max time network
141s
platform
windows7_x64
resource
win7v20210408
submitted
13/06/2021, 10:30

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General

Target
1C4C6737071A7559816A1F443E6DD1AC.exe
Size 961KB
Sample210613-eaxx33b3mj
SHA256 362ae494bfed3fd5e8137a652139777f3a986bf63fbcd17e74bb9c1f0e2cd500
MD5 1c4c6737071a7559816a1f443e6dd1ac
SHA1 422dc56653c22b5c61c1173bb0c38b4fab370221
SHA512 08c6cf197f7ee5275ea93cd080da9da4c7495a525d96a920d9143a2c11a153b258ab1c434b703c544d79d4fe677ad95b4509dd50197b496203086d6cc7b463f0
MD5 SHA1 SHA512

Score

10^/10

nanocore evasion keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

nanocore

Version

1.2.2.0

strongodss.ddns.net:48154
79.134.225.40:48154

Mutex

8080abe9-dca0-4fda-b289-40c56bb7d446

Attributes

activate_away_mode
false
backup_connection_host
79.134.225.40
backup_dns_server
buffer_size
65538
build_time
2021-01-14T10:01:11.679178836Z
bypass_user_account_control
false
bypass_user_account_control_data
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
clear_access_control
false
clear_zone_identifier
false
connect_delay
4000
connection_port
48154
default_group
FREE
enable_debug_mode
true
gc_threshold
1.0485772e+07
keep_alive_timeout
30000
keyboard_logging
false
lan_timeout
2500
max_packet_size
1.0485772e+07
mutex
8080abe9-dca0-4fda-b289-40c56bb7d446
mutex_timeout
5000
prevent_system_sleep
false
primary_connection_host
strongodss.ddns.net
primary_dns_server
request_elevation
true
restart_delay
5000
run_delay
0
run_on_startup
false
set_critical_process
false
timeout_interval
5000
use_custom_dns_server
false
version
1.2.2.0
wan_timeout
8009

Signatures

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

Executes dropped EXE 2 IoCs

pid	Process
1628	wmfihd.pif
872	RegSvcs.exe

Loads dropped DLL 5 IoCs

pid	Process
1472	1C4C6737071A7559816A1F443E6DD1AC.exe
1472	1C4C6737071A7559816A1F443E6DD1AC.exe
1472	1C4C6737071A7559816A1F443E6DD1AC.exe
1472	1C4C6737071A7559816A1F443E6DD1AC.exe
1628	wmfihd.pif

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	wmfihd.pif
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Chrome = "c:\\11181481\\wmfihd.pif c:\\11181481\\nbosqsk.qvp"	wmfihd.pif
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\AutoUpdate = "c:\\11181481\\Update.vbs"	wmfihd.pif
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\DPI Service = "C:\\Program Files (x86)\\DPI Service\\dpisv.exe"	RegSvcs.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	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1628 set thread context of 872	1628	wmfihd.pif	30

Drops file in Program Files directory 2 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\DPI Service\dpisv.exe	RegSvcs.exe
File opened for modification	C:\Program Files (x86)\DPI Service\dpisv.exe	RegSvcs.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
1548	schtasks.exe
444	schtasks.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
948	taskkill.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1800	PING.EXE

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
872	RegSvcs.exe
872	RegSvcs.exe
872	RegSvcs.exe
872	RegSvcs.exe
872	RegSvcs.exe
872	RegSvcs.exe
872	RegSvcs.exe
872	RegSvcs.exe
872	RegSvcs.exe
872	RegSvcs.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
872	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	872	RegSvcs.exe
Token: SeDebugPrivilege	872	RegSvcs.exe
Token: SeDebugPrivilege	872	RegSvcs.exe
Token: SeDebugPrivilege	948	taskkill.exe

Suspicious use of WriteProcessMemory 41 IoCs

description	pid	Process	procid_target
PID 1472 wrote to memory of 1628	1472	1C4C6737071A7559816A1F443E6DD1AC.exe	29
PID 1472 wrote to memory of 1628	1472	1C4C6737071A7559816A1F443E6DD1AC.exe	29
PID 1472 wrote to memory of 1628	1472	1C4C6737071A7559816A1F443E6DD1AC.exe	29
PID 1472 wrote to memory of 1628	1472	1C4C6737071A7559816A1F443E6DD1AC.exe	29
PID 1628 wrote to memory of 872	1628	wmfihd.pif	30
PID 1628 wrote to memory of 872	1628	wmfihd.pif	30
PID 1628 wrote to memory of 872	1628	wmfihd.pif	30
PID 1628 wrote to memory of 872	1628	wmfihd.pif	30
PID 1628 wrote to memory of 872	1628	wmfihd.pif	30
PID 1628 wrote to memory of 872	1628	wmfihd.pif	30
PID 1628 wrote to memory of 872	1628	wmfihd.pif	30
PID 1628 wrote to memory of 872	1628	wmfihd.pif	30
PID 1628 wrote to memory of 872	1628	wmfihd.pif	30
PID 872 wrote to memory of 1548	872	RegSvcs.exe	31
PID 872 wrote to memory of 1548	872	RegSvcs.exe	31
PID 872 wrote to memory of 1548	872	RegSvcs.exe	31
PID 872 wrote to memory of 1548	872	RegSvcs.exe	31
PID 872 wrote to memory of 444	872	RegSvcs.exe	33
PID 872 wrote to memory of 444	872	RegSvcs.exe	33
PID 872 wrote to memory of 444	872	RegSvcs.exe	33
PID 872 wrote to memory of 444	872	RegSvcs.exe	33
PID 872 wrote to memory of 2012	872	RegSvcs.exe	35
PID 872 wrote to memory of 2012	872	RegSvcs.exe	35
PID 872 wrote to memory of 2012	872	RegSvcs.exe	35
PID 872 wrote to memory of 2012	872	RegSvcs.exe	35
PID 872 wrote to memory of 924	872	RegSvcs.exe	37
PID 872 wrote to memory of 924	872	RegSvcs.exe	37
PID 872 wrote to memory of 924	872	RegSvcs.exe	37
PID 872 wrote to memory of 924	872	RegSvcs.exe	37
PID 872 wrote to memory of 1792	872	RegSvcs.exe	39
PID 872 wrote to memory of 1792	872	RegSvcs.exe	39
PID 872 wrote to memory of 1792	872	RegSvcs.exe	39
PID 872 wrote to memory of 1792	872	RegSvcs.exe	39
PID 1792 wrote to memory of 948	1792	cmd.exe	41
PID 1792 wrote to memory of 948	1792	cmd.exe	41
PID 1792 wrote to memory of 948	1792	cmd.exe	41
PID 1792 wrote to memory of 948	1792	cmd.exe	41
PID 1792 wrote to memory of 1800	1792	cmd.exe	43
PID 1792 wrote to memory of 1800	1792	cmd.exe	43
PID 1792 wrote to memory of 1800	1792	cmd.exe	43
PID 1792 wrote to memory of 1800	1792	cmd.exe	43

C:\Users\Admin\AppData\Local\Temp\1C4C6737071A7559816A1F443E6DD1AC.exe
"C:\Users\Admin\AppData\Local\Temp\1C4C6737071A7559816A1F443E6DD1AC.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1472
- C:\11181481\wmfihd.pif
  "C:\11181481\wmfihd.pif" nbosqsk.qvp
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1628
- - C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe
    "C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe"
    3⤵
    - Executes dropped EXE
    - 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:872
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "DPI Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmp7F5D.tmp"
      4⤵
      Creates scheduled task(s)
      PID:1548
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /create /f /tn "DPI Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmp81DE.tmp"
      4⤵
      Creates scheduled task(s)
      PID:444
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /delete /f /tn "DPI Service"
      4⤵
      PID:2012
  - - C:\Windows\SysWOW64\schtasks.exe
      "schtasks.exe" /delete /f /tn "DPI Service Task"
      4⤵
      PID:924
  - - C:\Windows\SysWOW64\cmd.exe
      "cmd.exe" /C taskkill /f /im "RegSvcs.exe" & ping -n 1 -w 3000 1.1.1.1 & type nul > "C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe" & del /f /q "C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe"
      4⤵
      Suspicious use of WriteProcessMemory
      PID:1792
    - - C:\Windows\SysWOW64\taskkill.exe
        
        taskkill /f /im "RegSvcs.exe"
        5⤵
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        
        PID:948
    - - C:\Windows\SysWOW64\PING.EXE
        
        ping -n 1 -w 3000 1.1.1.1
        5⤵
        Runs ping.exe
        
        PID:1800

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

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/872-81-0x0000000000A70000-0x0000000000A75000-memory.dmp

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memory/872-87-0x0000000002310000-0x0000000002316000-memory.dmp

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memory/872-76-0x0000000004C70000-0x0000000004C71000-memory.dmp

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memory/872-97-0x0000000005190000-0x000000000519A000-memory.dmp

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memory/872-70-0x00000000002F0000-0x000000000082E000-memory.dmp

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memory/872-96-0x0000000004D70000-0x0000000004D7F000-memory.dmp

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memory/872-94-0x0000000004C60000-0x0000000004C6A000-memory.dmp

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memory/872-82-0x0000000000AC0000-0x0000000000AC6000-memory.dmp

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memory/872-83-0x0000000000AD0000-0x0000000000AE9000-memory.dmp

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memory/872-84-0x0000000000B40000-0x0000000000B43000-memory.dmp

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memory/872-86-0x0000000000BB0000-0x0000000000BC5000-memory.dmp

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memory/872-85-0x0000000000BA0000-0x0000000000BAD000-memory.dmp

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memory/872-89-0x0000000002380000-0x0000000002387000-memory.dmp

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memory/872-88-0x0000000002330000-0x000000000233C000-memory.dmp

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memory/872-74-0x00000000002F0000-0x000000000082E000-memory.dmp

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memory/872-91-0x00000000046B0000-0x00000000046BD000-memory.dmp

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memory/872-90-0x0000000004620000-0x0000000004626000-memory.dmp

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memory/872-92-0x0000000004B70000-0x0000000004B79000-memory.dmp

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memory/872-93-0x0000000004C40000-0x0000000004C4F000-memory.dmp

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memory/872-95-0x0000000004D40000-0x0000000004D69000-memory.dmp

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memory/1472-59-0x00000000757C1000-0x00000000757C3000-memory.dmp

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