Analysis

  • max time kernel
    90s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-09-2024 01:40

General

  • Target

    4a88d515600a389b686c2674cb10d053720eab06b16bd6c8ad99e06157980283.exe

  • Size

    674KB

  • MD5

    b93e5d5b8d6e25ea9107769128334130

  • SHA1

    eaa57f101eec3faaa8ca9a767a07e4cdef35999e

  • SHA256

    4a88d515600a389b686c2674cb10d053720eab06b16bd6c8ad99e06157980283

  • SHA512

    52dfb3178800cf6905ba2e5d4c351a176b3feb531329d5bd7ba3135843dbeacad3814a82eaf3ecdf0e5e47261d7cd3d4043b616a10a2b79c194566fbb33a0657

  • SSDEEP

    12288:AO98bQbs8+iS6RGUfSjWFa9Rh1iEIhjz3DO8ITXykKsSWScPx3ZokkR:ArIJ+7dUfSjWA9Rh14Jy8qZuWbx3Zg

Malware Config

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ftp.libreriagandhi.cl
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    x6p2^m#1#~+O

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://ftp.libreriagandhi.cl
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    x6p2^m#1#~+O

Signatures

  • AgentTesla

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

  • 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.

  • 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).

  • 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 23 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4a88d515600a389b686c2674cb10d053720eab06b16bd6c8ad99e06157980283.exe
    "C:\Users\Admin\AppData\Local\Temp\4a88d515600a389b686c2674cb10d053720eab06b16bd6c8ad99e06157980283.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:392
    • 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\4a88d515600a389b686c2674cb10d053720eab06b16bd6c8ad99e06157980283.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4668
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zDowlSskSU.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4536
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zDowlSskSU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp6608.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2644
    • C:\Users\Admin\AppData\Local\Temp\4a88d515600a389b686c2674cb10d053720eab06b16bd6c8ad99e06157980283.exe
      "C:\Users\Admin\AppData\Local\Temp\4a88d515600a389b686c2674cb10d053720eab06b16bd6c8ad99e06157980283.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1708

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

    49ca1f8176454019e5a37a572b2a42ea

    SHA1

    84944dc861525ad567d0feaeb562cc978fe449a8

    SHA256

    5efcbc4045a4608581f062449e2ac0d932ca827d589b63a805fafc91556fa814

    SHA512

    ccf97fb6f4fef7031cb2562135b851b078c7c00fb25dc1fe60abc52985ebad275b9c72f9751ae8546059bb59fa390eb85d9e8be77b3974669e834ce8b102f960

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_efxupibh.jnv.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp6608.tmp

    Filesize

    1KB

    MD5

    d89443f8ffb033cc5a00157c8a7ed909

    SHA1

    a5cb68e84c6ecaac540148283ed6cd41dd07c038

    SHA256

    1d5e80ce23c9b6df184e8879f31c95c306acf9579e270e8fca8fbd81b6e8cf55

    SHA512

    c38165033907862e03c9796b3ffbca788bbe07a513a600ee53e3c2e17f1c82091d7312021a106bfba3d3ee0e1dc419eb7b2355b541ee8d0dc61522a6c76d1b50

  • memory/392-7-0x0000000074A1E000-0x0000000074A1F000-memory.dmp

    Filesize

    4KB

  • memory/392-5-0x0000000005340000-0x000000000534A000-memory.dmp

    Filesize

    40KB

  • memory/392-6-0x0000000007390000-0x00000000073A2000-memory.dmp

    Filesize

    72KB

  • memory/392-47-0x0000000074A10000-0x00000000751C0000-memory.dmp

    Filesize

    7.7MB

  • memory/392-8-0x0000000074A10000-0x00000000751C0000-memory.dmp

    Filesize

    7.7MB

  • memory/392-9-0x00000000076D0000-0x0000000007754000-memory.dmp

    Filesize

    528KB

  • memory/392-10-0x0000000009DC0000-0x0000000009E5C000-memory.dmp

    Filesize

    624KB

  • memory/392-2-0x0000000005880000-0x0000000005E24000-memory.dmp

    Filesize

    5.6MB

  • memory/392-4-0x0000000074A10000-0x00000000751C0000-memory.dmp

    Filesize

    7.7MB

  • memory/392-3-0x0000000005370000-0x0000000005402000-memory.dmp

    Filesize

    584KB

  • memory/392-1-0x0000000000880000-0x000000000092C000-memory.dmp

    Filesize

    688KB

  • memory/392-0-0x0000000074A1E000-0x0000000074A1F000-memory.dmp

    Filesize

    4KB

  • memory/1708-80-0x0000000006B40000-0x0000000006B90000-memory.dmp

    Filesize

    320KB

  • memory/1708-36-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/4536-89-0x0000000074A10000-0x00000000751C0000-memory.dmp

    Filesize

    7.7MB

  • memory/4536-22-0x0000000074A10000-0x00000000751C0000-memory.dmp

    Filesize

    7.7MB

  • memory/4536-77-0x0000000007B90000-0x0000000007BA1000-memory.dmp

    Filesize

    68KB

  • memory/4536-78-0x0000000007BC0000-0x0000000007BCE000-memory.dmp

    Filesize

    56KB

  • memory/4536-20-0x0000000074A10000-0x00000000751C0000-memory.dmp

    Filesize

    7.7MB

  • memory/4536-81-0x0000000007CD0000-0x0000000007CEA000-memory.dmp

    Filesize

    104KB

  • memory/4536-75-0x0000000007A10000-0x0000000007A1A000-memory.dmp

    Filesize

    40KB

  • memory/4536-61-0x0000000006C20000-0x0000000006C3E000-memory.dmp

    Filesize

    120KB

  • memory/4536-74-0x0000000007990000-0x00000000079AA000-memory.dmp

    Filesize

    104KB

  • memory/4536-62-0x0000000007650000-0x00000000076F3000-memory.dmp

    Filesize

    652KB

  • memory/4536-51-0x00000000752C0000-0x000000007530C000-memory.dmp

    Filesize

    304KB

  • memory/4536-50-0x0000000006C40000-0x0000000006C72000-memory.dmp

    Filesize

    200KB

  • memory/4668-24-0x0000000005660000-0x00000000056C6000-memory.dmp

    Filesize

    408KB

  • memory/4668-49-0x0000000005DB0000-0x0000000005DFC000-memory.dmp

    Filesize

    304KB

  • memory/4668-63-0x00000000752C0000-0x000000007530C000-memory.dmp

    Filesize

    304KB

  • memory/4668-73-0x00000000076A0000-0x0000000007D1A000-memory.dmp

    Filesize

    6.5MB

  • memory/4668-48-0x0000000005D20000-0x0000000005D3E000-memory.dmp

    Filesize

    120KB

  • memory/4668-35-0x0000000005930000-0x0000000005C84000-memory.dmp

    Filesize

    3.3MB

  • memory/4668-76-0x00000000072E0000-0x0000000007376000-memory.dmp

    Filesize

    600KB

  • memory/4668-25-0x00000000056D0000-0x0000000005736000-memory.dmp

    Filesize

    408KB

  • memory/4668-21-0x0000000004F60000-0x0000000004F82000-memory.dmp

    Filesize

    136KB

  • memory/4668-79-0x00000000072A0000-0x00000000072B4000-memory.dmp

    Filesize

    80KB

  • memory/4668-19-0x0000000074A10000-0x00000000751C0000-memory.dmp

    Filesize

    7.7MB

  • memory/4668-18-0x0000000074A10000-0x00000000751C0000-memory.dmp

    Filesize

    7.7MB

  • memory/4668-82-0x0000000007380000-0x0000000007388000-memory.dmp

    Filesize

    32KB

  • memory/4668-17-0x0000000004F90000-0x00000000055B8000-memory.dmp

    Filesize

    6.2MB

  • memory/4668-16-0x0000000074A10000-0x00000000751C0000-memory.dmp

    Filesize

    7.7MB

  • memory/4668-15-0x0000000000F80000-0x0000000000FB6000-memory.dmp

    Filesize

    216KB

  • memory/4668-88-0x0000000074A10000-0x00000000751C0000-memory.dmp

    Filesize

    7.7MB