Analysis

  • max time kernel
    136s
  • max time network
    143s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    01-10-2021 04:22

General

  • Target

    e3195b8479376b3fa5a9f0d75a4d602abcb9ab66b0ff72cc8359a9db3d430e12.exe

  • Size

    555KB

  • MD5

    e11fcea90dd1ec7ca8e6b747d954c20e

  • SHA1

    a040a76a9c5b44c03af8a11d7894c9e413d86efb

  • SHA256

    e3195b8479376b3fa5a9f0d75a4d602abcb9ab66b0ff72cc8359a9db3d430e12

  • SHA512

    3efb687504b4a56da89f65073b22e5950d06e12711de4f2bb0e8f54bcb2446b23c87e9c20e1052bb9df8be279c1e32b86ac799353dfbe94f235c634f86f403ec

Malware Config

Extracted

Family

raccoon

Botnet

f6d7183c9e82d2a9b81e6c0608450aa66cefb51f

Attributes
  • url4cnc

    https://t.me/justoprostohello

rc4.plain
rc4.plain

Signatures

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e3195b8479376b3fa5a9f0d75a4d602abcb9ab66b0ff72cc8359a9db3d430e12.exe
    "C:\Users\Admin\AppData\Local\Temp\e3195b8479376b3fa5a9f0d75a4d602abcb9ab66b0ff72cc8359a9db3d430e12.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2124
    • C:\Users\Admin\AppData\Local\Temp\AiWhuCaNIz.exe
      "C:\Users\Admin\AppData\Local\Temp\AiWhuCaNIz.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:2884
      • 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"
        3⤵
        • Creates scheduled task(s)
        PID:3352
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\e3195b8479376b3fa5a9f0d75a4d602abcb9ab66b0ff72cc8359a9db3d430e12.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2880
      • C:\Windows\SysWOW64\timeout.exe
        timeout /T 10 /NOBREAK
        3⤵
        • Delays execution with timeout.exe
        PID:3520
  • 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:992
    • 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:2412

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\AiWhuCaNIz.exe
    MD5

    631a8735a98eaeb719485970330313b2

    SHA1

    bcb643b4eafead8c44bf93861a9dcec8aa413bdf

    SHA256

    65c07be59dfb251615e1b3ae34d4339fa850b9963ffc3fe99f1a6fe21263760b

    SHA512

    9ea1aabe73af029a260b438bc043e95630710971ce3d59e073ce6c096f3e6fe19b8bb66f4599c2bd4dd491716eea9fcefafd92ebe53d82a4dfd607497379a80d

  • C:\Users\Admin\AppData\Local\Temp\AiWhuCaNIz.exe
    MD5

    631a8735a98eaeb719485970330313b2

    SHA1

    bcb643b4eafead8c44bf93861a9dcec8aa413bdf

    SHA256

    65c07be59dfb251615e1b3ae34d4339fa850b9963ffc3fe99f1a6fe21263760b

    SHA512

    9ea1aabe73af029a260b438bc043e95630710971ce3d59e073ce6c096f3e6fe19b8bb66f4599c2bd4dd491716eea9fcefafd92ebe53d82a4dfd607497379a80d

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

    631a8735a98eaeb719485970330313b2

    SHA1

    bcb643b4eafead8c44bf93861a9dcec8aa413bdf

    SHA256

    65c07be59dfb251615e1b3ae34d4339fa850b9963ffc3fe99f1a6fe21263760b

    SHA512

    9ea1aabe73af029a260b438bc043e95630710971ce3d59e073ce6c096f3e6fe19b8bb66f4599c2bd4dd491716eea9fcefafd92ebe53d82a4dfd607497379a80d

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

    631a8735a98eaeb719485970330313b2

    SHA1

    bcb643b4eafead8c44bf93861a9dcec8aa413bdf

    SHA256

    65c07be59dfb251615e1b3ae34d4339fa850b9963ffc3fe99f1a6fe21263760b

    SHA512

    9ea1aabe73af029a260b438bc043e95630710971ce3d59e073ce6c096f3e6fe19b8bb66f4599c2bd4dd491716eea9fcefafd92ebe53d82a4dfd607497379a80d

  • \Users\Admin\AppData\LocalLow\sqlite3.dll
    MD5

    f964811b68f9f1487c2b41e1aef576ce

    SHA1

    b423959793f14b1416bc3b7051bed58a1034025f

    SHA256

    83bc57dcf282264f2b00c21ce0339eac20fcb7401f7c5472c0cd0c014844e5f7

    SHA512

    565b1a7291c6fcb63205907fcd9e72fc2e11ca945afc4468c378edba882e2f314c2ac21a7263880ff7d4b84c2a1678024c1ac9971ac1c1de2bfa4248ec0f98c4

  • memory/992-129-0x0000000000400000-0x000000000044D000-memory.dmp
    Filesize

    308KB

  • memory/2124-115-0x00000000004A0000-0x000000000054E000-memory.dmp
    Filesize

    696KB

  • memory/2124-116-0x0000000000400000-0x0000000000497000-memory.dmp
    Filesize

    604KB

  • memory/2412-128-0x0000000000000000-mapping.dmp
  • memory/2880-120-0x0000000000000000-mapping.dmp
  • memory/2884-118-0x0000000000000000-mapping.dmp
  • memory/2884-124-0x0000000000030000-0x0000000000034000-memory.dmp
    Filesize

    16KB

  • memory/2884-125-0x0000000000400000-0x000000000044D000-memory.dmp
    Filesize

    308KB

  • memory/3352-123-0x0000000000000000-mapping.dmp
  • memory/3520-122-0x0000000000000000-mapping.dmp