Analysis

  • max time kernel
    97s
  • max time network
    116s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    15-09-2021 07:12

General

  • Target

    67825bbb3619ba21d1ca2831746840f93a62850bab152bc55ce00a34ddba6077.exe

  • Size

    167KB

  • MD5

    3192cd0b9c0ffc4275c161adcf991ce8

  • SHA1

    76ba14371142872f251cb94331f1871a5307ba62

  • SHA256

    67825bbb3619ba21d1ca2831746840f93a62850bab152bc55ce00a34ddba6077

  • SHA512

    581b1d40252c06956392ba0f97d43a308cb84289939fac79261fb997b7af20e309382ada2a9a93993f574fab05662d7f211c3250eeb58e09e37b179d3d3a6fb9

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\67825bbb3619ba21d1ca2831746840f93a62850bab152bc55ce00a34ddba6077.exe
    "C:\Users\Admin\AppData\Local\Temp\67825bbb3619ba21d1ca2831746840f93a62850bab152bc55ce00a34ddba6077.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:656
    • C:\Windows\SysWOW64\schtasks.exe
      /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\sihost.exe"
      2⤵
      • Creates scheduled task(s)
      PID:1004
  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\sihost.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Network\sihost.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:1056
    • C:\Windows\SysWOW64\schtasks.exe
      /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\sihost.exe"
      2⤵
      • Creates scheduled task(s)
      PID:1220

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\sihost.exe
    MD5

    3192cd0b9c0ffc4275c161adcf991ce8

    SHA1

    76ba14371142872f251cb94331f1871a5307ba62

    SHA256

    67825bbb3619ba21d1ca2831746840f93a62850bab152bc55ce00a34ddba6077

    SHA512

    581b1d40252c06956392ba0f97d43a308cb84289939fac79261fb997b7af20e309382ada2a9a93993f574fab05662d7f211c3250eeb58e09e37b179d3d3a6fb9

  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\sihost.exe
    MD5

    3192cd0b9c0ffc4275c161adcf991ce8

    SHA1

    76ba14371142872f251cb94331f1871a5307ba62

    SHA256

    67825bbb3619ba21d1ca2831746840f93a62850bab152bc55ce00a34ddba6077

    SHA512

    581b1d40252c06956392ba0f97d43a308cb84289939fac79261fb997b7af20e309382ada2a9a93993f574fab05662d7f211c3250eeb58e09e37b179d3d3a6fb9

  • memory/656-114-0x0000000000030000-0x0000000000034000-memory.dmp
    Filesize

    16KB

  • memory/656-115-0x0000000000400000-0x0000000002148000-memory.dmp
    Filesize

    29.3MB

  • memory/1004-116-0x0000000000000000-mapping.dmp
  • memory/1056-120-0x0000000000400000-0x0000000002148000-memory.dmp
    Filesize

    29.3MB

  • memory/1220-119-0x0000000000000000-mapping.dmp