Analysis

  • max time kernel
    134s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-10-2024 15:37

General

  • Target

    SecuriteInfo.com.BackDoor.AgentTeslaNET.20.26809.8980.exe

  • Size

    857KB

  • MD5

    3bc8fe52f28307cf921da1f1bdc448fb

  • SHA1

    0a213e9c8ace169379f108ccba01793ddcdc07f0

  • SHA256

    c7ffefaa549c25376e488ab4c7a41a09493bb962f68658e39a49ac7cb21dacdd

  • SHA512

    660d600323d9cfacbbca1f897d66e517693d10a316edc59e95ed02532a46dde7d7d0af0dbc9b750e3ee70bc0cf1b74fbc7fd7bcb2a257ea5d22c704b212353e3

  • SSDEEP

    24576:deq38JBG088vRAwGdZHczQh3Xq6iLlCFEY:2XG78ijFXq6iLsKY

Malware Config

Extracted

Family

vipkeylogger

Credentials

Signatures

  • VIPKeylogger

    VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • 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 3 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
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Scheduled Task/Job: Scheduled Task 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\SecuriteInfo.com.BackDoor.AgentTeslaNET.20.26809.8980.exe
    "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.20.26809.8980.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:220
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.20.26809.8980.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2980
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\EUjCRllSu.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3940
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\EUjCRllSu" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAB24.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:3012
    • C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.20.26809.8980.exe
      "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.BackDoor.AgentTeslaNET.20.26809.8980.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:844

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

    Filesize

    2KB

    MD5

    968cb9309758126772781b83adb8a28f

    SHA1

    8da30e71accf186b2ba11da1797cf67f8f78b47c

    SHA256

    92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

    SHA512

    4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    18KB

    MD5

    39d99ab0f9e9739ad42eeb3e46f89951

    SHA1

    c7332db91d10fc9db70f5273beca099f4a807b36

    SHA256

    45577c331fb8ac8142a08acf5a79ede41bd09c18fcc3d32daf58743802fefced

    SHA512

    cd4f3038a2a4a9628f941b0b29f27c918c7a8ca673167e8a6ae92b0f48c0e2ae028002a1bcb1cd777e72cb99cea1644cd4fe210b6f7e925d0ef35b15450f6d01

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_d3vwm42l.cub.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpAB24.tmp

    Filesize

    1KB

    MD5

    185f9ee5cea7af2f65efc361f3b5e05f

    SHA1

    397b5d23017d940918cff0f630cd4aabe71dfc0d

    SHA256

    a8eea3900803c89eca21f91a4088a737041d748cad0f3c24a00fe3abdf21c3c6

    SHA512

    a0bbb9d6015bf7c44a533640ba06e4f0f17da8b50d92ffb1222a242453376dac43d7fc3a6b31a7db0dd1583f5f38a9bc855f03f1dad3c23dc3f0fc9944f70ac8

  • memory/220-8-0x000000007535E000-0x000000007535F000-memory.dmp

    Filesize

    4KB

  • memory/220-0-0x000000007535E000-0x000000007535F000-memory.dmp

    Filesize

    4KB

  • memory/220-6-0x0000000005A20000-0x0000000005ABC000-memory.dmp

    Filesize

    624KB

  • memory/220-7-0x00000000080F0000-0x00000000080FE000-memory.dmp

    Filesize

    56KB

  • memory/220-5-0x0000000005870000-0x000000000587A000-memory.dmp

    Filesize

    40KB

  • memory/220-9-0x0000000075350000-0x0000000075B00000-memory.dmp

    Filesize

    7.7MB

  • memory/220-10-0x0000000008110000-0x000000000819C000-memory.dmp

    Filesize

    560KB

  • memory/220-1-0x0000000000CF0000-0x0000000000DCC000-memory.dmp

    Filesize

    880KB

  • memory/220-2-0x0000000005CE0000-0x0000000006284000-memory.dmp

    Filesize

    5.6MB

  • memory/220-4-0x0000000075350000-0x0000000075B00000-memory.dmp

    Filesize

    7.7MB

  • memory/220-3-0x00000000057D0000-0x0000000005862000-memory.dmp

    Filesize

    584KB

  • memory/220-38-0x0000000075350000-0x0000000075B00000-memory.dmp

    Filesize

    7.7MB

  • memory/844-26-0x0000000000400000-0x0000000000448000-memory.dmp

    Filesize

    288KB

  • memory/844-89-0x0000000006A40000-0x0000000006C02000-memory.dmp

    Filesize

    1.8MB

  • memory/844-90-0x00000000068C0000-0x0000000006910000-memory.dmp

    Filesize

    320KB

  • memory/2980-37-0x00000000057D0000-0x0000000005B24000-memory.dmp

    Filesize

    3.3MB

  • memory/2980-74-0x00000000070E0000-0x00000000070FA000-memory.dmp

    Filesize

    104KB

  • memory/2980-25-0x0000000005760000-0x00000000057C6000-memory.dmp

    Filesize

    408KB

  • memory/2980-23-0x0000000004F00000-0x0000000004F22000-memory.dmp

    Filesize

    136KB

  • memory/2980-16-0x0000000002490000-0x00000000024C6000-memory.dmp

    Filesize

    216KB

  • memory/2980-15-0x0000000075350000-0x0000000075B00000-memory.dmp

    Filesize

    7.7MB

  • memory/2980-19-0x0000000075350000-0x0000000075B00000-memory.dmp

    Filesize

    7.7MB

  • memory/2980-39-0x0000000005DC0000-0x0000000005DDE000-memory.dmp

    Filesize

    120KB

  • memory/2980-49-0x0000000005E80000-0x0000000005ECC000-memory.dmp

    Filesize

    304KB

  • memory/2980-51-0x00000000718E0000-0x000000007192C000-memory.dmp

    Filesize

    304KB

  • memory/2980-50-0x0000000006380000-0x00000000063B2000-memory.dmp

    Filesize

    200KB

  • memory/2980-62-0x0000000006FA0000-0x0000000007043000-memory.dmp

    Filesize

    652KB

  • memory/2980-61-0x00000000063C0000-0x00000000063DE000-memory.dmp

    Filesize

    120KB

  • memory/2980-84-0x0000000075350000-0x0000000075B00000-memory.dmp

    Filesize

    7.7MB

  • memory/2980-73-0x0000000007720000-0x0000000007D9A000-memory.dmp

    Filesize

    6.5MB

  • memory/2980-24-0x0000000005640000-0x00000000056A6000-memory.dmp

    Filesize

    408KB

  • memory/2980-18-0x0000000075350000-0x0000000075B00000-memory.dmp

    Filesize

    7.7MB

  • memory/2980-17-0x0000000004FA0000-0x00000000055C8000-memory.dmp

    Filesize

    6.2MB

  • memory/2980-81-0x0000000007400000-0x0000000007408000-memory.dmp

    Filesize

    32KB

  • memory/2980-78-0x0000000007310000-0x000000000731E000-memory.dmp

    Filesize

    56KB

  • memory/2980-80-0x0000000007420000-0x000000000743A000-memory.dmp

    Filesize

    104KB

  • memory/3940-79-0x0000000007B70000-0x0000000007B84000-memory.dmp

    Filesize

    80KB

  • memory/3940-77-0x0000000007B30000-0x0000000007B41000-memory.dmp

    Filesize

    68KB

  • memory/3940-76-0x0000000007BB0000-0x0000000007C46000-memory.dmp

    Filesize

    600KB

  • memory/3940-88-0x0000000075350000-0x0000000075B00000-memory.dmp

    Filesize

    7.7MB

  • memory/3940-75-0x00000000079A0000-0x00000000079AA000-memory.dmp

    Filesize

    40KB

  • memory/3940-63-0x00000000718E0000-0x000000007192C000-memory.dmp

    Filesize

    304KB

  • memory/3940-20-0x0000000075350000-0x0000000075B00000-memory.dmp

    Filesize

    7.7MB

  • memory/3940-22-0x0000000075350000-0x0000000075B00000-memory.dmp

    Filesize

    7.7MB