Analysis

  • max time kernel
    140s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231127-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231127-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-11-2023 06:50

General

  • Target

    INV.exe

  • Size

    674KB

  • MD5

    b7d48d8454f4aa3ae1b0ed7e53559628

  • SHA1

    acbe3e258e28449feaffd199cdf005dd3bec231c

  • SHA256

    7c1725edad4a3366d166366f35d611e65705a084dc67f886b1963857f8dfa641

  • SHA512

    a8509642e21e8c28cb8aa5959a63c0fb8affbf27c8102cc381734781b959d3122991498ee9f302b4a381b4e733beeed31316ef912e83c9fc41f08d2e0f482424

  • SSDEEP

    12288:Tuid7BR6wTuHt1fKOGyfoAuuCQ1RP+OSMOcNojh31Pm+HX+Si:CipBelrGDAuuCQCGojh31e+3S

Malware Config

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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 6 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\INV.exe
    "C:\Users\Admin\AppData\Local\Temp\INV.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2592
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\VedVuxqfLPu.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3076
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VedVuxqfLPu" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF4B0.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3452
    • C:\Users\Admin\AppData\Local\Temp\INV.exe
      "C:\Users\Admin\AppData\Local\Temp\INV.exe"
      2⤵
        PID:1620
      • C:\Users\Admin\AppData\Local\Temp\INV.exe
        "C:\Users\Admin\AppData\Local\Temp\INV.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:3024

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_wk0gaolp.yqb.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmpF4B0.tmp

      Filesize

      1KB

      MD5

      2a425152b964a505d640b70792ec6864

      SHA1

      a44d62c1c266fab869f63f82870bf1cc04a29f6c

      SHA256

      87e60c4a28e2e4e74c5af440c547c2491e450f2e81dac0289c8b0e49003715e3

      SHA512

      dc556e7022a5d74271b31757360ea1446cfc62c846a4206ccdf2b9a97792243d66c9a523e80d278980ecb68b2a7a85a5bd3cdbf9bda2d99199b320cf6d5e51b8

    • memory/2592-10-0x000000000F580000-0x000000000F61C000-memory.dmp

      Filesize

      624KB

    • memory/2592-9-0x000000000BEE0000-0x000000000BF5A000-memory.dmp

      Filesize

      488KB

    • memory/2592-4-0x0000000005360000-0x0000000005370000-memory.dmp

      Filesize

      64KB

    • memory/2592-5-0x0000000005320000-0x000000000532A000-memory.dmp

      Filesize

      40KB

    • memory/2592-6-0x0000000005700000-0x000000000571A000-memory.dmp

      Filesize

      104KB

    • memory/2592-7-0x0000000005720000-0x0000000005728000-memory.dmp

      Filesize

      32KB

    • memory/2592-8-0x0000000005730000-0x000000000573A000-memory.dmp

      Filesize

      40KB

    • memory/2592-1-0x00000000747D0000-0x0000000074F80000-memory.dmp

      Filesize

      7.7MB

    • memory/2592-0-0x0000000000870000-0x000000000091E000-memory.dmp

      Filesize

      696KB

    • memory/2592-11-0x00000000747D0000-0x0000000074F80000-memory.dmp

      Filesize

      7.7MB

    • memory/2592-16-0x0000000005360000-0x0000000005370000-memory.dmp

      Filesize

      64KB

    • memory/2592-3-0x0000000005390000-0x0000000005422000-memory.dmp

      Filesize

      584KB

    • memory/2592-2-0x00000000058A0000-0x0000000005E44000-memory.dmp

      Filesize

      5.6MB

    • memory/2592-26-0x00000000747D0000-0x0000000074F80000-memory.dmp

      Filesize

      7.7MB

    • memory/3024-71-0x00000000052E0000-0x00000000052F0000-memory.dmp

      Filesize

      64KB

    • memory/3024-68-0x00000000747D0000-0x0000000074F80000-memory.dmp

      Filesize

      7.7MB

    • memory/3024-23-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/3024-69-0x00000000063F0000-0x0000000006440000-memory.dmp

      Filesize

      320KB

    • memory/3024-25-0x00000000747D0000-0x0000000074F80000-memory.dmp

      Filesize

      7.7MB

    • memory/3024-70-0x0000000006610000-0x00000000067D2000-memory.dmp

      Filesize

      1.8MB

    • memory/3024-27-0x00000000052E0000-0x00000000052F0000-memory.dmp

      Filesize

      64KB

    • memory/3076-29-0x0000000005480000-0x00000000054E6000-memory.dmp

      Filesize

      408KB

    • memory/3076-58-0x00000000076D0000-0x00000000076EA000-memory.dmp

      Filesize

      104KB

    • memory/3076-20-0x0000000004EB0000-0x0000000004EC0000-memory.dmp

      Filesize

      64KB

    • memory/3076-35-0x0000000005D50000-0x0000000005DB6000-memory.dmp

      Filesize

      408KB

    • memory/3076-40-0x0000000005FD0000-0x0000000006324000-memory.dmp

      Filesize

      3.3MB

    • memory/3076-41-0x00000000063B0000-0x00000000063CE000-memory.dmp

      Filesize

      120KB

    • memory/3076-42-0x00000000063E0000-0x000000000642C000-memory.dmp

      Filesize

      304KB

    • memory/3076-43-0x0000000004EB0000-0x0000000004EC0000-memory.dmp

      Filesize

      64KB

    • memory/3076-44-0x0000000007370000-0x00000000073A2000-memory.dmp

      Filesize

      200KB

    • memory/3076-45-0x0000000070200000-0x000000007024C000-memory.dmp

      Filesize

      304KB

    • memory/3076-55-0x0000000006980000-0x000000000699E000-memory.dmp

      Filesize

      120KB

    • memory/3076-56-0x00000000073B0000-0x0000000007453000-memory.dmp

      Filesize

      652KB

    • memory/3076-57-0x0000000007D10000-0x000000000838A000-memory.dmp

      Filesize

      6.5MB

    • memory/3076-28-0x00000000053E0000-0x0000000005402000-memory.dmp

      Filesize

      136KB

    • memory/3076-59-0x0000000007740000-0x000000000774A000-memory.dmp

      Filesize

      40KB

    • memory/3076-60-0x0000000007950000-0x00000000079E6000-memory.dmp

      Filesize

      600KB

    • memory/3076-61-0x00000000078D0000-0x00000000078E1000-memory.dmp

      Filesize

      68KB

    • memory/3076-62-0x0000000007920000-0x000000000792E000-memory.dmp

      Filesize

      56KB

    • memory/3076-63-0x0000000007930000-0x0000000007944000-memory.dmp

      Filesize

      80KB

    • memory/3076-64-0x0000000007A30000-0x0000000007A4A000-memory.dmp

      Filesize

      104KB

    • memory/3076-65-0x0000000007A10000-0x0000000007A18000-memory.dmp

      Filesize

      32KB

    • memory/3076-67-0x00000000747D0000-0x0000000074F80000-memory.dmp

      Filesize

      7.7MB

    • memory/3076-21-0x00000000054F0000-0x0000000005B18000-memory.dmp

      Filesize

      6.2MB

    • memory/3076-22-0x0000000004EB0000-0x0000000004EC0000-memory.dmp

      Filesize

      64KB

    • memory/3076-19-0x00000000747D0000-0x0000000074F80000-memory.dmp

      Filesize

      7.7MB

    • memory/3076-17-0x0000000004E00000-0x0000000004E36000-memory.dmp

      Filesize

      216KB