Analysis

  • max time kernel
    93s
  • max time network
    95s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-10-2024 01:11

General

  • Target

    38f275624c634801c164c2c8f3294cbeea49b47e8e8d83bda53a0bc8aa7f7106.exe

  • Size

    920KB

  • MD5

    78eff09f295aa4b3aaf36af5245efe94

  • SHA1

    dea545e8b85f2c1201f7aa3a54f643826ca8a6ed

  • SHA256

    38f275624c634801c164c2c8f3294cbeea49b47e8e8d83bda53a0bc8aa7f7106

  • SHA512

    a8b49247156aa7004206f24211054f7f37c73df06e8a85ecf843e9c44cc99a5cf29886e85ba03d89a87a1d3968322c25cdef7877ae6c5efcfa946910204ce67f

  • SSDEEP

    12288:T3TEG/N9AKPGu+MAyn6+6Slh5/2qVe2lR8XaZW4IaBAP7r9r/+ppppppppppppp7:8AnAPRo6+pPOnoR8X2W4JBA1q

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 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 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.

  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\38f275624c634801c164c2c8f3294cbeea49b47e8e8d83bda53a0bc8aa7f7106.exe
    "C:\Users\Admin\AppData\Local\Temp\38f275624c634801c164c2c8f3294cbeea49b47e8e8d83bda53a0bc8aa7f7106.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2908
    • 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\38f275624c634801c164c2c8f3294cbeea49b47e8e8d83bda53a0bc8aa7f7106.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:5076
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zriEHRxkd.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4584
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zriEHRxkd" /XML "C:\Users\Admin\AppData\Local\Temp\tmpDD40.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:1992
    • C:\Users\Admin\AppData\Local\Temp\38f275624c634801c164c2c8f3294cbeea49b47e8e8d83bda53a0bc8aa7f7106.exe
      "C:\Users\Admin\AppData\Local\Temp\38f275624c634801c164c2c8f3294cbeea49b47e8e8d83bda53a0bc8aa7f7106.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4020

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

    cc8d79f2b5c0696baf15df6288aa4573

    SHA1

    bd18eb68e68f8a324fedcebedf16c687e761e229

    SHA256

    125a5718af9f6a11e7c1c43b875d14d86f3ca9c58d912ae669ec5a43d64f44d8

    SHA512

    60b68ffc30e970097e6191ea5aed306e10bbd961832147aa66ab6dd4e273ccbac0fdefba316b52b310473c4f0a37905a99f7b1eefe48660f19cdbd19ee618456

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_e11n0hmx.kwa.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpDD40.tmp

    Filesize

    1KB

    MD5

    08d0b69d9ace07405f15852613452b4e

    SHA1

    792ae776885a799c9dd1ea4e547c49179c3b9d73

    SHA256

    86226fc7088599aeb05baf70e6b458d569535e3dc1509b5bafdba500783d7133

    SHA512

    144ca4238776c9df3950bcbff4484d68478bea682788ac4a4cf20566207fd8991b58d4a1292f1e4581454320abda8c67162d96242cac0c8f8e45868d766e7e9e

  • memory/2908-8-0x0000000075110000-0x00000000758C0000-memory.dmp

    Filesize

    7.7MB

  • memory/2908-4-0x00000000050D0000-0x00000000050DA000-memory.dmp

    Filesize

    40KB

  • memory/2908-6-0x00000000055B0000-0x00000000055CE000-memory.dmp

    Filesize

    120KB

  • memory/2908-7-0x000000007511E000-0x000000007511F000-memory.dmp

    Filesize

    4KB

  • memory/2908-5-0x0000000075110000-0x00000000758C0000-memory.dmp

    Filesize

    7.7MB

  • memory/2908-9-0x0000000002890000-0x0000000002912000-memory.dmp

    Filesize

    520KB

  • memory/2908-10-0x000000000AFD0000-0x000000000B06C000-memory.dmp

    Filesize

    624KB

  • memory/2908-0-0x000000007511E000-0x000000007511F000-memory.dmp

    Filesize

    4KB

  • memory/2908-47-0x0000000075110000-0x00000000758C0000-memory.dmp

    Filesize

    7.7MB

  • memory/2908-3-0x0000000005020000-0x00000000050B2000-memory.dmp

    Filesize

    584KB

  • memory/2908-2-0x00000000055D0000-0x0000000005B74000-memory.dmp

    Filesize

    5.6MB

  • memory/2908-1-0x0000000000670000-0x000000000075C000-memory.dmp

    Filesize

    944KB

  • memory/4020-89-0x0000000005DE0000-0x0000000005E30000-memory.dmp

    Filesize

    320KB

  • memory/4020-45-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/4584-20-0x0000000075110000-0x00000000758C0000-memory.dmp

    Filesize

    7.7MB

  • memory/4584-81-0x0000000007B60000-0x0000000007B68000-memory.dmp

    Filesize

    32KB

  • memory/4584-80-0x0000000007B80000-0x0000000007B9A000-memory.dmp

    Filesize

    104KB

  • memory/4584-30-0x0000000075110000-0x00000000758C0000-memory.dmp

    Filesize

    7.7MB

  • memory/4584-87-0x0000000075110000-0x00000000758C0000-memory.dmp

    Filesize

    7.7MB

  • memory/4584-41-0x0000000006040000-0x0000000006394000-memory.dmp

    Filesize

    3.3MB

  • memory/4584-75-0x00000000078B0000-0x00000000078BA000-memory.dmp

    Filesize

    40KB

  • memory/4584-63-0x0000000075980000-0x00000000759CC000-memory.dmp

    Filesize

    304KB

  • memory/5076-16-0x0000000075110000-0x00000000758C0000-memory.dmp

    Filesize

    7.7MB

  • memory/5076-49-0x0000000006710000-0x000000000675C000-memory.dmp

    Filesize

    304KB

  • memory/5076-50-0x0000000006C20000-0x0000000006C52000-memory.dmp

    Filesize

    200KB

  • memory/5076-51-0x0000000075980000-0x00000000759CC000-memory.dmp

    Filesize

    304KB

  • memory/5076-62-0x0000000007680000-0x0000000007723000-memory.dmp

    Filesize

    652KB

  • memory/5076-61-0x0000000006C60000-0x0000000006C7E000-memory.dmp

    Filesize

    120KB

  • memory/5076-48-0x0000000006660000-0x000000000667E000-memory.dmp

    Filesize

    120KB

  • memory/5076-73-0x0000000007FD0000-0x000000000864A000-memory.dmp

    Filesize

    6.5MB

  • memory/5076-74-0x0000000007990000-0x00000000079AA000-memory.dmp

    Filesize

    104KB

  • memory/5076-22-0x0000000005DE0000-0x0000000005E02000-memory.dmp

    Filesize

    136KB

  • memory/5076-76-0x0000000007C10000-0x0000000007CA6000-memory.dmp

    Filesize

    600KB

  • memory/5076-77-0x0000000007B90000-0x0000000007BA1000-memory.dmp

    Filesize

    68KB

  • memory/5076-78-0x0000000007BC0000-0x0000000007BCE000-memory.dmp

    Filesize

    56KB

  • memory/5076-79-0x0000000007BD0000-0x0000000007BE4000-memory.dmp

    Filesize

    80KB

  • memory/5076-23-0x0000000005E80000-0x0000000005EE6000-memory.dmp

    Filesize

    408KB

  • memory/5076-24-0x0000000005EF0000-0x0000000005F56000-memory.dmp

    Filesize

    408KB

  • memory/5076-19-0x0000000075110000-0x00000000758C0000-memory.dmp

    Filesize

    7.7MB

  • memory/5076-18-0x0000000005780000-0x0000000005DA8000-memory.dmp

    Filesize

    6.2MB

  • memory/5076-88-0x0000000075110000-0x00000000758C0000-memory.dmp

    Filesize

    7.7MB

  • memory/5076-17-0x0000000075110000-0x00000000758C0000-memory.dmp

    Filesize

    7.7MB

  • memory/5076-15-0x0000000002D50000-0x0000000002D86000-memory.dmp

    Filesize

    216KB