Analysis

  • max time kernel
    121s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-en-20211104
  • submitted
    03-12-2021 14:23

General

  • Target

    PURCHASE ORDER.exe

  • Size

    604KB

  • MD5

    a6ffb00132dd3d3bd4efd4a277b2053a

  • SHA1

    691f70aee58eba1ceae835f4ea123880be1e0b04

  • SHA256

    fac76dce20527e0d385d72be5f7d39319b516c6d834940ec42ca270bf8fb70b6

  • SHA512

    28f15e590e8b6697add3ff5f889506716fb10b7c23ae856ccfaf766fc8d34ab7eaa6afb02f09cfe8c99c78d96c2e9735513e8b1f1adce4902d137f8012f5668e

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    mail.privateemail.com
  • Port:
    587
  • Username:
    admin@siemens-energy.cam
  • Password:
    antivenom

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • 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 3 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe
    "C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"
    1⤵
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1472
    • C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe
      "C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:1664

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Collection

Data from Local System

3
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1472-55-0x00000000009A0000-0x00000000009A1000-memory.dmp
    Filesize

    4KB

  • memory/1472-57-0x0000000074E51000-0x0000000074E53000-memory.dmp
    Filesize

    8KB

  • memory/1472-58-0x00000000006B0000-0x00000000006B1000-memory.dmp
    Filesize

    4KB

  • memory/1472-59-0x0000000000890000-0x00000000008BD000-memory.dmp
    Filesize

    180KB

  • memory/1664-60-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

  • memory/1664-61-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

  • memory/1664-62-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

  • memory/1664-63-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

  • memory/1664-64-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

  • memory/1664-65-0x000000000042054E-mapping.dmp
  • memory/1664-66-0x0000000000400000-0x0000000000426000-memory.dmp
    Filesize

    152KB

  • memory/1664-68-0x0000000004A10000-0x0000000004A11000-memory.dmp
    Filesize

    4KB