7d048ec8f8cedb15fa7480514b72d10d50a3d1574f7a72e654050c8b7ecc4034

Analysis

max time kernel
148s
max time network
153s
platform
windows10_x64
resource
win10v20201028
submitted
29/12/2020, 19:38

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General

Target
f6e914f1d3f4d73b812e5e6151f3ce71.exe
Size 368KB
Sample201229-ckl5py9t6a
SHA256 7d048ec8f8cedb15fa7480514b72d10d50a3d1574f7a72e654050c8b7ecc4034
MD5 f6e914f1d3f4d73b812e5e6151f3ce71
SHA1 7a009ceac322fc5b89b096e3d87eb58b71170b03
SHA512 af4f6501a899c299736f7627df7a07f1466395100fe80ed0d13d6e33d7695aa7b9781c17cd5654e8012688896dd4ab5ffa6ed89e1d1311bfb278cda0aa79b6ae
MD5 SHA1 SHA512

Score

8^/10

Malware Config

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
28	3972	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
3972	rundll32.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
2652	schtasks.exe
3468	schtasks.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1308	timeout.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3972	rundll32.exe
3972	rundll32.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 3336 wrote to memory of 2208	3336	f6e914f1d3f4d73b812e5e6151f3ce71.exe	78
PID 3336 wrote to memory of 2208	3336	f6e914f1d3f4d73b812e5e6151f3ce71.exe	78
PID 3336 wrote to memory of 2208	3336	f6e914f1d3f4d73b812e5e6151f3ce71.exe	78
PID 3336 wrote to memory of 1384	3336	f6e914f1d3f4d73b812e5e6151f3ce71.exe	79
PID 3336 wrote to memory of 1384	3336	f6e914f1d3f4d73b812e5e6151f3ce71.exe	79
PID 3336 wrote to memory of 1384	3336	f6e914f1d3f4d73b812e5e6151f3ce71.exe	79
PID 1384 wrote to memory of 1308	1384	cmd.exe	83
PID 1384 wrote to memory of 1308	1384	cmd.exe	83
PID 1384 wrote to memory of 1308	1384	cmd.exe	83
PID 2208 wrote to memory of 1112	2208	cmd.exe	82
PID 2208 wrote to memory of 1112	2208	cmd.exe	82
PID 2208 wrote to memory of 1112	2208	cmd.exe	82
PID 3336 wrote to memory of 3108	3336	f6e914f1d3f4d73b812e5e6151f3ce71.exe	84
PID 3336 wrote to memory of 3108	3336	f6e914f1d3f4d73b812e5e6151f3ce71.exe	84
PID 3336 wrote to memory of 3108	3336	f6e914f1d3f4d73b812e5e6151f3ce71.exe	84
PID 3336 wrote to memory of 3096	3336	f6e914f1d3f4d73b812e5e6151f3ce71.exe	85
PID 3336 wrote to memory of 3096	3336	f6e914f1d3f4d73b812e5e6151f3ce71.exe	85
PID 3336 wrote to memory of 3096	3336	f6e914f1d3f4d73b812e5e6151f3ce71.exe	85
PID 3108 wrote to memory of 2268	3108	cmd.exe	88
PID 3108 wrote to memory of 2268	3108	cmd.exe	88
PID 3108 wrote to memory of 2268	3108	cmd.exe	88
PID 3096 wrote to memory of 3972	3096	cmd.exe	89
PID 3096 wrote to memory of 3972	3096	cmd.exe	89
PID 3096 wrote to memory of 3972	3096	cmd.exe	89
PID 1384 wrote to memory of 2652	1384	cmd.exe	90
PID 1384 wrote to memory of 2652	1384	cmd.exe	90
PID 1384 wrote to memory of 2652	1384	cmd.exe	90
PID 3972 wrote to memory of 68	3972	rundll32.exe	91
PID 3972 wrote to memory of 68	3972	rundll32.exe	91
PID 3972 wrote to memory of 68	3972	rundll32.exe	91
PID 68 wrote to memory of 3468	68	cmd.exe	93
PID 68 wrote to memory of 3468	68	cmd.exe	93
PID 68 wrote to memory of 3468	68	cmd.exe	93

C:\Users\Admin\AppData\Local\Temp\f6e914f1d3f4d73b812e5e6151f3ce71.exe
"C:\Users\Admin\AppData\Local\Temp\f6e914f1d3f4d73b812e5e6151f3ce71.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3336
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C reg add "HKEY_CURRENT_USER\Software\NetHelper" /v path /t REG_SZ /d C:\ProgramData\NetHelper\Cache\avycPYzNDTtCaQVwhQOa /f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2208
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKEY_CURRENT_USER\Software\NetHelper" /v path /t REG_SZ /d C:\ProgramData\NetHelper\Cache\avycPYzNDTtCaQVwhQOa /f
    3⤵
    PID:1112
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C timeout /t 60 && SCHTASKS /Create /SC MINUTE /MO 1 /TN "Service for windows Network Helper updates" /TR C:\ProgramData\NetHelper\Cache\avycPYzNDTtCaQVwhQOa\´Ònethelper.exe /F
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1384
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 60
    3⤵
    - Delays execution with timeout.exe
    PID:1308
- - C:\Windows\SysWOW64\schtasks.exe
    SCHTASKS /Create /SC MINUTE /MO 1 /TN "Service for windows Network Helper updates" /TR C:\ProgramData\NetHelper\Cache\avycPYzNDTtCaQVwhQOa\´Ònethelper.exe /F
    3⤵
    - Creates scheduled task(s)
    PID:2652
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C reg add "HKEY_CURRENT_USER\Software\NetHelper" /v library /t REG_SZ /d C:\ProgramData\NetHelper\Cache\avycPYzNDTtCaQVwhQOa\nethelper.dll /f && EXIT 0
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3108
- - C:\Windows\SysWOW64\reg.exe
    reg add "HKEY_CURRENT_USER\Software\NetHelper" /v library /t REG_SZ /d C:\ProgramData\NetHelper\Cache\avycPYzNDTtCaQVwhQOa\nethelper.dll /f
    3⤵
    PID:2268
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C rundll32.exe C:\ProgramData\NetHelper\Cache\avycPYzNDTtCaQVwhQOa\nethelper.dll, UserModeExport
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3096
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\ProgramData\NetHelper\Cache\avycPYzNDTtCaQVwhQOa\nethelper.dll, UserModeExport
    3⤵
    - Blocklisted process makes network request
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:3972
  - - C:\Windows\SysWOW64\cmd.exe
      C:\Windows\System32\cmd.exe /C SCHTASKS /Create /SC MINUTE /MO 1 /TN "Service for windows Network Helper updates" /TR C:\Users\Admin\AppData\Local\Temp\nethelper.exe /F
      4⤵
      Suspicious use of WriteProcessMemory
      PID:68
    - - C:\Windows\SysWOW64\schtasks.exe
        
        SCHTASKS /Create /SC MINUTE /MO 1 /TN "Service for windows Network Helper updates" /TR C:\Users\Admin\AppData\Local\Temp\nethelper.exe /F
        5⤵
        Creates scheduled task(s)
        
        PID:3468

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3336-2-0x0000000005136000-0x0000000005137000-memory.dmp

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memory/3336-3-0x0000000005520000-0x0000000005521000-memory.dmp

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