Analysis

  • max time kernel
    130s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-09-2024 11:30

General

  • Target

    tmps1jos_w7.exe

  • Size

    1.4MB

  • MD5

    86e5efa7d3dce6320ffcdfc12f628cba

  • SHA1

    d3d26c7eddb95e028c13b97f94f330e5ad5dbba4

  • SHA256

    07c65671acce67cfa5a214ce2285563f6b3eaeadd5afbcd21bcaa42a536f7ba6

  • SHA512

    cb5d2fa04260b9ca8b8200dfa8881d82ae7cd701822c0cb3c8df5846a6f315c60475a39dc9048094d78fc8c2be21e4df734b805ac2f205c3c67b1a1b89cd8e23

  • SSDEEP

    24576:ivrA5SXIIYCcp3WLcndXJp80oPQZ3aO30KISlm7mgXKrqEKdCSu59m6nnjqKoe:ivOkRYCcp3ZrpBooF1Tm6g6rFKdg9rjF

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

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

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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 3 TTPs

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

  • Looks up external IP address via web service 2 IoCs

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

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 9 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 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of WriteProcessMemory 40 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmps1jos_w7.exe
    "C:\Users\Admin\AppData\Local\Temp\tmps1jos_w7.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1048
    • 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\tmps1jos_w7.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3824
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\OkbpwNyH.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:876
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OkbpwNyH" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC42B.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:620
    • C:\Users\Admin\AppData\Local\Temp\tmps1jos_w7.exe
      "C:\Users\Admin\AppData\Local\Temp\tmps1jos_w7.exe"
      2⤵
        PID:3960
      • C:\Users\Admin\AppData\Local\Temp\tmps1jos_w7.exe
        "C:\Users\Admin\AppData\Local\Temp\tmps1jos_w7.exe"
        2⤵
        • Checks computer location settings
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:3132
        • 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\tmps1jos_w7.exe"
          3⤵
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:944
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\wlBldyvi.exe"
          3⤵
          • Command and Scripting Interpreter: PowerShell
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4916
        • C:\Windows\SysWOW64\schtasks.exe
          "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\wlBldyvi" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFA2F.tmp"
          3⤵
          • System Location Discovery: System Language Discovery
          • Scheduled Task/Job: Scheduled Task
          PID:3412
        • C:\Users\Admin\AppData\Local\Temp\tmps1jos_w7.exe
          "C:\Users\Admin\AppData\Local\Temp\tmps1jos_w7.exe"
          3⤵
            PID:3680
          • C:\Users\Admin\AppData\Local\Temp\tmps1jos_w7.exe
            "C:\Users\Admin\AppData\Local\Temp\tmps1jos_w7.exe"
            3⤵
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:4960

      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

        3d086a433708053f9bf9523e1d87a4e8

        SHA1

        b3ab5d4f282a4c8fe8c3005b8a557ed5a0e37f28

        SHA256

        6f8fd1b8d9788ad54eaeee329232187e24b7b43393a01aeba2d6e9675231fb69

        SHA512

        931ae42b4c68a4507ff2342332b08eb407050d47cf4176137ea022d0f6e513c689e998445a04c6d18d4877391705c586bfce0234632b898d41aaed0957996dfd

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\tmps1jos_w7.exe.log

        Filesize

        1KB

        MD5

        8ec831f3e3a3f77e4a7b9cd32b48384c

        SHA1

        d83f09fd87c5bd86e045873c231c14836e76a05c

        SHA256

        7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

        SHA512

        26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

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

        Filesize

        18KB

        MD5

        6d2434a3f847ec3a132bbde4c2c85c12

        SHA1

        15c11df172439c1c9acac399ac2669c75d225c81

        SHA256

        2203971fec801fd2b9873283b1c2a2469517c270012fb78e88c1d65187cf2734

        SHA512

        f6a6ae05bf0e0ef269099e9b44a77c64c4a6369b6ab2104463ad880aa99c148aa16cdfb128fbc46fc7cd2d897f760e21fb37e83fd1b7d75d814b199852767727

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

        Filesize

        255B

        MD5

        f1c65c41a10e64c6537330eaee69b067

        SHA1

        ce685c707b9c9f5aed6b3f5cde195c60d38b9727

        SHA256

        3eddc6d7adf00176d8f8103418e8258a4763d2bcb8c0a51b3d4bcd0c25653546

        SHA512

        c40746fd9b5c6309085d15c7b009c93b5a6cf61ab7098470c1aca7baf79295ce120f22900cf81fd9346976f4fe9f936dbd754904d22156ae0dd6649b759390e6

      • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1la11kal.31q.ps1

        Filesize

        60B

        MD5

        d17fe0a3f47be24a6453e9ef58c94641

        SHA1

        6ab83620379fc69f80c0242105ddffd7d98d5d9d

        SHA256

        96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

        SHA512

        5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

      • C:\Users\Admin\AppData\Local\Temp\tmpC42B.tmp

        Filesize

        1KB

        MD5

        a8bd21fc84576453f98745a649b3a3b3

        SHA1

        a4d2aa5bc43c27c8ece014399551a7a05f2528b4

        SHA256

        91efc00447782be50d586c60d2de85ba5dbf6cf3802511a36c80d6c36e470b49

        SHA512

        6d03703017ddaa1e2868463c0b85a061edfce80d4a21650fa07602e4eb7b05fea70ec72947b227ee9a06586313703165b253f22f540dec31f3fe31ba743a99d2

      • C:\Users\Admin\AppData\Local\Temp\tmpFA2F.tmp

        Filesize

        1KB

        MD5

        ea795c2c315f91346d6f7706f07e731c

        SHA1

        84caec7ed3cc57e01e0dcde756fe9b4ccb87522e

        SHA256

        015aa297edb75cbd834dcc2f4d4855c074ac5eb786223f37ba9fcf76bea75076

        SHA512

        9933fa6c3998149e5ddcba7fe6779985bd9b3f8ad876b37ac5e1eb935f0ea1527250e01b396267dc2a721304898191b1386b49f7899bf0c26564d8234b51a7f2

      • C:\Users\Admin\AppData\Roaming\wlBldyvi.exe

        Filesize

        1.4MB

        MD5

        86e5efa7d3dce6320ffcdfc12f628cba

        SHA1

        d3d26c7eddb95e028c13b97f94f330e5ad5dbba4

        SHA256

        07c65671acce67cfa5a214ce2285563f6b3eaeadd5afbcd21bcaa42a536f7ba6

        SHA512

        cb5d2fa04260b9ca8b8200dfa8881d82ae7cd701822c0cb3c8df5846a6f315c60475a39dc9048094d78fc8c2be21e4df734b805ac2f205c3c67b1a1b89cd8e23

      • memory/876-31-0x0000000075020000-0x00000000757D0000-memory.dmp

        Filesize

        7.7MB

      • memory/876-75-0x0000000007830000-0x00000000078D3000-memory.dmp

        Filesize

        652KB

      • memory/876-64-0x00000000758D0000-0x000000007591C000-memory.dmp

        Filesize

        304KB

      • memory/876-79-0x0000000007BE0000-0x0000000007C76000-memory.dmp

        Filesize

        600KB

      • memory/876-80-0x0000000007B60000-0x0000000007B71000-memory.dmp

        Filesize

        68KB

      • memory/876-81-0x0000000007B90000-0x0000000007B9E000-memory.dmp

        Filesize

        56KB

      • memory/876-84-0x0000000007C80000-0x0000000007C88000-memory.dmp

        Filesize

        32KB

      • memory/876-87-0x0000000075020000-0x00000000757D0000-memory.dmp

        Filesize

        7.7MB

      • memory/876-20-0x0000000075020000-0x00000000757D0000-memory.dmp

        Filesize

        7.7MB

      • memory/876-21-0x0000000075020000-0x00000000757D0000-memory.dmp

        Filesize

        7.7MB

      • memory/876-77-0x0000000007FA0000-0x000000000861A000-memory.dmp

        Filesize

        6.5MB

      • memory/944-119-0x0000000071760000-0x00000000717AC000-memory.dmp

        Filesize

        304KB

      • memory/944-129-0x00000000075E0000-0x0000000007683000-memory.dmp

        Filesize

        652KB

      • memory/944-118-0x0000000006740000-0x000000000678C000-memory.dmp

        Filesize

        304KB

      • memory/944-140-0x0000000007B40000-0x0000000007B51000-memory.dmp

        Filesize

        68KB

      • memory/1048-8-0x000000007502E000-0x000000007502F000-memory.dmp

        Filesize

        4KB

      • memory/1048-2-0x0000000005EF0000-0x0000000006494000-memory.dmp

        Filesize

        5.6MB

      • memory/1048-1-0x0000000000D90000-0x0000000000EFE000-memory.dmp

        Filesize

        1.4MB

      • memory/1048-48-0x0000000075020000-0x00000000757D0000-memory.dmp

        Filesize

        7.7MB

      • memory/1048-6-0x0000000006F10000-0x000000000703E000-memory.dmp

        Filesize

        1.2MB

      • memory/1048-5-0x00000000058E0000-0x00000000058EA000-memory.dmp

        Filesize

        40KB

      • memory/1048-3-0x0000000005940000-0x00000000059D2000-memory.dmp

        Filesize

        584KB

      • memory/1048-0-0x000000007502E000-0x000000007502F000-memory.dmp

        Filesize

        4KB

      • memory/1048-4-0x0000000075020000-0x00000000757D0000-memory.dmp

        Filesize

        7.7MB

      • memory/1048-7-0x0000000007040000-0x0000000007050000-memory.dmp

        Filesize

        64KB

      • memory/1048-11-0x000000000AD70000-0x000000000AE0C000-memory.dmp

        Filesize

        624KB

      • memory/1048-10-0x00000000077C0000-0x00000000078D6000-memory.dmp

        Filesize

        1.1MB

      • memory/1048-9-0x0000000075020000-0x00000000757D0000-memory.dmp

        Filesize

        7.7MB

      • memory/3132-51-0x0000000006C30000-0x0000000006CD0000-memory.dmp

        Filesize

        640KB

      • memory/3132-52-0x0000000005920000-0x0000000005930000-memory.dmp

        Filesize

        64KB

      • memory/3132-46-0x0000000000400000-0x00000000004D4000-memory.dmp

        Filesize

        848KB

      • memory/3132-89-0x0000000007030000-0x00000000070B2000-memory.dmp

        Filesize

        520KB

      • memory/3824-83-0x0000000007D10000-0x0000000007D2A000-memory.dmp

        Filesize

        104KB

      • memory/3824-19-0x0000000075020000-0x00000000757D0000-memory.dmp

        Filesize

        7.7MB

      • memory/3824-82-0x0000000007C10000-0x0000000007C24000-memory.dmp

        Filesize

        80KB

      • memory/3824-76-0x00000000079D0000-0x00000000079EA000-memory.dmp

        Filesize

        104KB

      • memory/3824-54-0x00000000758D0000-0x000000007591C000-memory.dmp

        Filesize

        304KB

      • memory/3824-88-0x0000000075020000-0x00000000757D0000-memory.dmp

        Filesize

        7.7MB

      • memory/3824-49-0x0000000006680000-0x000000000669E000-memory.dmp

        Filesize

        120KB

      • memory/3824-65-0x0000000007840000-0x000000000785E000-memory.dmp

        Filesize

        120KB

      • memory/3824-50-0x0000000006C40000-0x0000000006C8C000-memory.dmp

        Filesize

        304KB

      • memory/3824-78-0x0000000007A40000-0x0000000007A4A000-memory.dmp

        Filesize

        40KB

      • memory/3824-23-0x0000000005F10000-0x0000000005F32000-memory.dmp

        Filesize

        136KB

      • memory/3824-16-0x00000000050F0000-0x0000000005126000-memory.dmp

        Filesize

        216KB

      • memory/3824-24-0x0000000005FB0000-0x0000000006016000-memory.dmp

        Filesize

        408KB

      • memory/3824-17-0x0000000075020000-0x00000000757D0000-memory.dmp

        Filesize

        7.7MB

      • memory/3824-36-0x0000000006090000-0x00000000063E4000-memory.dmp

        Filesize

        3.3MB

      • memory/3824-25-0x0000000006020000-0x0000000006086000-memory.dmp

        Filesize

        408KB

      • memory/3824-53-0x0000000007880000-0x00000000078B2000-memory.dmp

        Filesize

        200KB

      • memory/3824-18-0x0000000005820000-0x0000000005E48000-memory.dmp

        Filesize

        6.2MB

      • memory/4916-130-0x0000000071760000-0x00000000717AC000-memory.dmp

        Filesize

        304KB

      • memory/4916-107-0x0000000005F60000-0x00000000062B4000-memory.dmp

        Filesize

        3.3MB

      • memory/4916-141-0x00000000079E0000-0x00000000079F4000-memory.dmp

        Filesize

        80KB

      • memory/4960-105-0x0000000000400000-0x0000000000440000-memory.dmp

        Filesize

        256KB

      • memory/4960-145-0x0000000006650000-0x00000000066A0000-memory.dmp

        Filesize

        320KB