Analysis

  • max time kernel
    119s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20230831-en
  • resource tags

    arch:x64arch:x86image:win7-20230831-enlocale:en-usos:windows7-x64system
  • submitted
    18/09/2023, 15:10

General

  • Target

    Remesas Aceptadas.exe

  • Size

    580KB

  • MD5

    65356dd18822c4dea40af821d5a3e8e5

  • SHA1

    5e7c5da4d94e29bc55a160788c0a76ae0b139406

  • SHA256

    871cd25c5a71371cf9d6cec80d9f08f191f06a228e6eb0890e0f284277559a92

  • SHA512

    e17e6f8cec423cee62b747283fa64decb0cbdafede0fcbe9833c38ba1b86b2f988b054c87990309d4cb11dd4b61b3889e96a528f9890e23d360066bd46ced163

  • SSDEEP

    12288:WAfDuHOXasG61aezZW3YQEuarwlSiwdFFZG7se31x3ocnS00I2BbJDPhE:WgpraeoIxuaMlFwvH6GHE

Malware Config

Extracted

Family

snakekeylogger

Credentials

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 5 IoCs
  • 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.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Remesas Aceptadas.exe
    "C:\Users\Admin\AppData\Local\Temp\Remesas Aceptadas.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2548
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\rrxwteJq.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2712
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rrxwteJq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5042.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:364
    • C:\Users\Admin\AppData\Local\Temp\Remesas Aceptadas.exe
      "C:\Users\Admin\AppData\Local\Temp\Remesas Aceptadas.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:3008

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp5042.tmp

    Filesize

    1KB

    MD5

    8e85b06b55e5a331269ab23c0c2bd979

    SHA1

    ac9b1d4c2ba046c340ea24284855e0fca2a06880

    SHA256

    b48a0508111c39121173c53a78bb691f5d279380d67a0c03ea47de48c0bc1cca

    SHA512

    6c04d161ca30ec16b26be84ccc4c424296214259675337f755cb18f4c6b0567be57e02c1029f5baccb12ccfdfa0901e2b3569e911f1d4f6768b6b7e6d2776030

  • memory/2548-26-0x0000000074560000-0x0000000074C4E000-memory.dmp

    Filesize

    6.9MB

  • memory/2548-1-0x0000000010470000-0x0000000010508000-memory.dmp

    Filesize

    608KB

  • memory/2548-2-0x0000000004D20000-0x0000000004D60000-memory.dmp

    Filesize

    256KB

  • memory/2548-3-0x0000000000310000-0x0000000000328000-memory.dmp

    Filesize

    96KB

  • memory/2548-4-0x0000000074560000-0x0000000074C4E000-memory.dmp

    Filesize

    6.9MB

  • memory/2548-5-0x0000000004D20000-0x0000000004D60000-memory.dmp

    Filesize

    256KB

  • memory/2548-6-0x0000000000200000-0x000000000020A000-memory.dmp

    Filesize

    40KB

  • memory/2548-7-0x0000000004C90000-0x0000000004CF0000-memory.dmp

    Filesize

    384KB

  • memory/2548-0-0x0000000074560000-0x0000000074C4E000-memory.dmp

    Filesize

    6.9MB

  • memory/2712-27-0x000000006EC50000-0x000000006F1FB000-memory.dmp

    Filesize

    5.7MB

  • memory/2712-28-0x000000006EC50000-0x000000006F1FB000-memory.dmp

    Filesize

    5.7MB

  • memory/2712-33-0x000000006EC50000-0x000000006F1FB000-memory.dmp

    Filesize

    5.7MB

  • memory/2712-31-0x00000000026D0000-0x0000000002710000-memory.dmp

    Filesize

    256KB

  • memory/2712-30-0x00000000026D0000-0x0000000002710000-memory.dmp

    Filesize

    256KB

  • memory/3008-23-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/3008-25-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/3008-16-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/3008-15-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/3008-17-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/3008-29-0x0000000074560000-0x0000000074C4E000-memory.dmp

    Filesize

    6.9MB

  • memory/3008-21-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/3008-19-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/3008-32-0x0000000000380000-0x00000000003C0000-memory.dmp

    Filesize

    256KB

  • memory/3008-18-0x0000000000400000-0x0000000000426000-memory.dmp

    Filesize

    152KB

  • memory/3008-34-0x0000000074560000-0x0000000074C4E000-memory.dmp

    Filesize

    6.9MB

  • memory/3008-35-0x0000000000380000-0x00000000003C0000-memory.dmp

    Filesize

    256KB