Analysis

  • max time kernel
    84s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-08-2022 07:06

General

  • Target

    Payment 05-08-22.exe

  • Size

    341KB

  • MD5

    54827a45e0eec3ecb462066523d63e6c

  • SHA1

    7c7a87429e9533c14497c799c085825ca68f5b4a

  • SHA256

    ee81c7498b4343a8c9353957777a74cf2f615b3b0d8a09846eb06fcde700de63

  • SHA512

    0c305685f8f3f1df118fcd75bac38c6c28205ea2690576231f5ae4df69b6d9ea685ec29d1fc1bcaa5c2309d94053addcccab8078cf77a30748ed5ccb32036116

Malware Config

Extracted

Family

snakekeylogger

C2

https://api.telegram.org/bot5410455012:AAE1SHAu8VAoPkLETxqziCFDZfyqp8DD7SA/sendMessage?chat_id=2008035906

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 3 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Payment 05-08-22.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment 05-08-22.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3144
    • C:\Users\Admin\AppData\Local\Temp\binn1.exe
      "C:\Users\Admin\AppData\Local\Temp\binn1.exe"
      2⤵
      • Executes dropped EXE
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:4552

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\binn1.exe

    Filesize

    126KB

    MD5

    d7ae412c7b211a55aab4d7c64dff870b

    SHA1

    4b9a99d232afe69495afd82913090eeaba815fe4

    SHA256

    025c3a4174f86308877f3e0545849acc881ccc82bafefb5d949169337568081c

    SHA512

    ee557c31f76724040f888b901073fae5f6e74da5dd4cc3d71310f1bfaceef6e924c603b7eff0de18b0b30e8e3dca387a8b90659714cef3b328716b00a5022218

  • C:\Users\Admin\AppData\Local\Temp\binn1.exe

    Filesize

    126KB

    MD5

    d7ae412c7b211a55aab4d7c64dff870b

    SHA1

    4b9a99d232afe69495afd82913090eeaba815fe4

    SHA256

    025c3a4174f86308877f3e0545849acc881ccc82bafefb5d949169337568081c

    SHA512

    ee557c31f76724040f888b901073fae5f6e74da5dd4cc3d71310f1bfaceef6e924c603b7eff0de18b0b30e8e3dca387a8b90659714cef3b328716b00a5022218

  • memory/3144-130-0x0000000000B40000-0x0000000000B98000-memory.dmp

    Filesize

    352KB

  • memory/3144-131-0x00007FF81DE60000-0x00007FF81E921000-memory.dmp

    Filesize

    10.8MB

  • memory/3144-135-0x00007FF81DE60000-0x00007FF81E921000-memory.dmp

    Filesize

    10.8MB

  • memory/4552-132-0x0000000000000000-mapping.dmp

  • memory/4552-136-0x0000000000600000-0x0000000000626000-memory.dmp

    Filesize

    152KB

  • memory/4552-137-0x0000000005610000-0x0000000005BB4000-memory.dmp

    Filesize

    5.6MB

  • memory/4552-138-0x0000000005060000-0x00000000050FC000-memory.dmp

    Filesize

    624KB

  • memory/4552-139-0x0000000006450000-0x0000000006612000-memory.dmp

    Filesize

    1.8MB

  • memory/4552-140-0x0000000006620000-0x00000000066B2000-memory.dmp

    Filesize

    584KB

  • memory/4552-141-0x00000000063D0000-0x00000000063DA000-memory.dmp

    Filesize

    40KB