Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-04-2024 01:18

General

  • Target

    6ef8c66a1958aa5927fc6876db282fd2eabb40aa5155db6807400fc220a2797e.exe

  • Size

    1019KB

  • MD5

    6ad9dfa098e7c9d0fa5758eeb8869fb7

  • SHA1

    83422bb95e4c9f9b926ff18fe5dc19e757807825

  • SHA256

    6ef8c66a1958aa5927fc6876db282fd2eabb40aa5155db6807400fc220a2797e

  • SHA512

    5bcf0e1ed4b3b10b1a5e3c35d7d0e851773d24cc73a86a3b3168ba1f501b8e7f91a60569f725b7b9f3c765c6df882f2b6d39c51bec4654fe754fd0ec2e7ae626

  • SSDEEP

    12288:M2pgwJzm3C0X+I6AvtSNY2kIhyZddLvFoJCuDlm/B36zTMX6v2mTPhABNtvDkR:7XzmHHvtG/sLvFo0upIqnT5QBW

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Checks computer location settings 2 TTPs 1 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 2 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 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 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6ef8c66a1958aa5927fc6876db282fd2eabb40aa5155db6807400fc220a2797e.exe
    "C:\Users\Admin\AppData\Local\Temp\6ef8c66a1958aa5927fc6876db282fd2eabb40aa5155db6807400fc220a2797e.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3884
    • 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\6ef8c66a1958aa5927fc6876db282fd2eabb40aa5155db6807400fc220a2797e.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1240
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\DVISAAdoYmtuqT.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2148
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\DVISAAdoYmtuqT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9328.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1464
    • C:\Users\Admin\AppData\Local\Temp\6ef8c66a1958aa5927fc6876db282fd2eabb40aa5155db6807400fc220a2797e.exe
      "C:\Users\Admin\AppData\Local\Temp\6ef8c66a1958aa5927fc6876db282fd2eabb40aa5155db6807400fc220a2797e.exe"
      2⤵
        PID:4516
      • C:\Users\Admin\AppData\Local\Temp\6ef8c66a1958aa5927fc6876db282fd2eabb40aa5155db6807400fc220a2797e.exe
        "C:\Users\Admin\AppData\Local\Temp\6ef8c66a1958aa5927fc6876db282fd2eabb40aa5155db6807400fc220a2797e.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4744

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    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

      2be4d3ccc4d1fba1f2c75d19eadff750

      SHA1

      189bfe751cda1fa3ad302df553ddbec0005bde45

      SHA256

      6d96ddb51b5a6a1926cb8c62d155191aa1c7d1916860dd63ca7c4b86a943f498

      SHA512

      4e18051623ad83ba66edb3ec259eb0a43f74708f363943430bec1fe4f827fdd0180ac209d2a82879e7dfeb2673b14370a4548ff5c51cdbb30fd603628847633a

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0phnoaow.dfd.ps1

      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp9328.tmp

      Filesize

      1KB

      MD5

      32cfe05230b58a4163f5fa2492f41d11

      SHA1

      cb43ed8d4ab82139db604e6f15d0e94baca8b965

      SHA256

      d2eec68ed570c87491cd3436ee8429c7defb7df3069980e236e1921ff2893b67

      SHA512

      275da4cab03d4b738d880bdc46a34b7e6255ec68cc86d0b1d912aaf252223388b0d69735adf44b223c2589e951eb0d3d4cbaaebc8043f37ac9f5c288b088fc67

    • memory/1240-26-0x0000000005690000-0x00000000056F6000-memory.dmp

      Filesize

      408KB

    • memory/1240-17-0x0000000074BB0000-0x0000000075360000-memory.dmp

      Filesize

      7.7MB

    • memory/1240-88-0x0000000074BB0000-0x0000000075360000-memory.dmp

      Filesize

      7.7MB

    • memory/1240-82-0x0000000007450000-0x0000000007458000-memory.dmp

      Filesize

      32KB

    • memory/1240-79-0x0000000007360000-0x000000000736E000-memory.dmp

      Filesize

      56KB

    • memory/1240-78-0x0000000007330000-0x0000000007341000-memory.dmp

      Filesize

      68KB

    • memory/1240-64-0x0000000075420000-0x000000007546C000-memory.dmp

      Filesize

      304KB

    • memory/1240-15-0x0000000004870000-0x00000000048A6000-memory.dmp

      Filesize

      216KB

    • memory/1240-16-0x0000000004FF0000-0x0000000005618000-memory.dmp

      Filesize

      6.2MB

    • memory/1240-19-0x00000000049B0000-0x00000000049C0000-memory.dmp

      Filesize

      64KB

    • memory/1240-27-0x0000000005800000-0x0000000005B54000-memory.dmp

      Filesize

      3.3MB

    • memory/1240-24-0x0000000004D50000-0x0000000004D72000-memory.dmp

      Filesize

      136KB

    • memory/1240-25-0x0000000005620000-0x0000000005686000-memory.dmp

      Filesize

      408KB

    • memory/1240-18-0x00000000049B0000-0x00000000049C0000-memory.dmp

      Filesize

      64KB

    • memory/2148-75-0x0000000007880000-0x000000000789A000-memory.dmp

      Filesize

      104KB

    • memory/2148-80-0x0000000007AC0000-0x0000000007AD4000-memory.dmp

      Filesize

      80KB

    • memory/2148-89-0x0000000074BB0000-0x0000000075360000-memory.dmp

      Filesize

      7.7MB

    • memory/2148-21-0x0000000004FA0000-0x0000000004FB0000-memory.dmp

      Filesize

      64KB

    • memory/2148-81-0x0000000007BC0000-0x0000000007BDA000-memory.dmp

      Filesize

      104KB

    • memory/2148-77-0x0000000007B00000-0x0000000007B96000-memory.dmp

      Filesize

      600KB

    • memory/2148-22-0x0000000004FA0000-0x0000000004FB0000-memory.dmp

      Filesize

      64KB

    • memory/2148-76-0x00000000078F0000-0x00000000078FA000-memory.dmp

      Filesize

      40KB

    • memory/2148-20-0x0000000074BB0000-0x0000000075360000-memory.dmp

      Filesize

      7.7MB

    • memory/2148-49-0x0000000006540000-0x000000000655E000-memory.dmp

      Filesize

      120KB

    • memory/2148-50-0x0000000006560000-0x00000000065AC000-memory.dmp

      Filesize

      304KB

    • memory/2148-52-0x0000000075420000-0x000000007546C000-memory.dmp

      Filesize

      304KB

    • memory/2148-62-0x0000000006B20000-0x0000000006B3E000-memory.dmp

      Filesize

      120KB

    • memory/2148-51-0x0000000007510000-0x0000000007542000-memory.dmp

      Filesize

      200KB

    • memory/2148-63-0x0000000007750000-0x00000000077F3000-memory.dmp

      Filesize

      652KB

    • memory/2148-74-0x0000000007ED0000-0x000000000854A000-memory.dmp

      Filesize

      6.5MB

    • memory/3884-4-0x0000000004B80000-0x0000000004B90000-memory.dmp

      Filesize

      64KB

    • memory/3884-10-0x0000000007CC0000-0x0000000007D5C000-memory.dmp

      Filesize

      624KB

    • memory/3884-7-0x0000000004EF0000-0x0000000004EFE000-memory.dmp

      Filesize

      56KB

    • memory/3884-3-0x0000000004C80000-0x0000000004D12000-memory.dmp

      Filesize

      584KB

    • memory/3884-9-0x0000000007B70000-0x0000000007C1A000-memory.dmp

      Filesize

      680KB

    • memory/3884-8-0x0000000004F00000-0x0000000004F14000-memory.dmp

      Filesize

      80KB

    • memory/3884-5-0x0000000004C10000-0x0000000004C1A000-memory.dmp

      Filesize

      40KB

    • memory/3884-0-0x0000000000100000-0x0000000000202000-memory.dmp

      Filesize

      1.0MB

    • memory/3884-1-0x0000000074BB0000-0x0000000075360000-memory.dmp

      Filesize

      7.7MB

    • memory/3884-2-0x0000000005230000-0x00000000057D4000-memory.dmp

      Filesize

      5.6MB

    • memory/3884-6-0x0000000004C50000-0x0000000004C68000-memory.dmp

      Filesize

      96KB

    • memory/3884-48-0x0000000074BB0000-0x0000000075360000-memory.dmp

      Filesize

      7.7MB

    • memory/4744-46-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/4744-90-0x0000000006910000-0x0000000006960000-memory.dmp

      Filesize

      320KB