Analysis

  • max time kernel
    164s
  • max time network
    180s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-03-2024 01:27

General

  • Target

    364209eac02aa9b43723badf042129626438eb550cd5fe01130631a021ac7cae.exe

  • Size

    694KB

  • MD5

    a7ce361b8483aeb3d666243d6c182381

  • SHA1

    d717121422d12d09364da2d537451868fdc23c2f

  • SHA256

    364209eac02aa9b43723badf042129626438eb550cd5fe01130631a021ac7cae

  • SHA512

    005a7c289273a0b28b50392a28341cd196e377c3b4052c95cf25268fb7865a290d5e2f92aea5d804b72baa2d6cca1da8457645cce8dfa165e6c8d8a7268460d4

  • SSDEEP

    12288:n/qQ0YOwqOpZ8SkCzuq6I8p3p7rg31w22QhHA6+KbqMEjq/COHKF2wH0SyB8BM:y0O7A8STr6Jp722QhHz+HMEmbHKQCDm

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    ^lMiJzV4

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 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.

  • Adds Run key to start application 2 TTPs 1 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
  • 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\364209eac02aa9b43723badf042129626438eb550cd5fe01130631a021ac7cae.exe
    "C:\Users\Admin\AppData\Local\Temp\364209eac02aa9b43723badf042129626438eb550cd5fe01130631a021ac7cae.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4936
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\SLoeKhsnbJISJ.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3140
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\SLoeKhsnbJISJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF27E.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:772
    • C:\Users\Admin\AppData\Local\Temp\364209eac02aa9b43723badf042129626438eb550cd5fe01130631a021ac7cae.exe
      "C:\Users\Admin\AppData\Local\Temp\364209eac02aa9b43723badf042129626438eb550cd5fe01130631a021ac7cae.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3900
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4172 --field-trial-handle=2588,i,14229658658073991926,6938034815163866135,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:1140

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Execution

    Scheduled Task/Job

    1
    T1053

    Persistence

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Scheduled Task/Job

    1
    T1053

    Privilege Escalation

    Boot or Logon Autostart Execution

    1
    T1547

    Registry Run Keys / Startup Folder

    1
    T1547.001

    Scheduled Task/Job

    1
    T1053

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Unsecured Credentials

    2
    T1552

    Credentials In Files

    2
    T1552.001

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Collection

    Data from Local System

    2
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_an0ce55a.jzk.ps1
      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmpF27E.tmp
      Filesize

      1KB

      MD5

      43ce40a4614f93e236a79d97ddee0fc9

      SHA1

      3db77739f2e46f3375f4308d33d03fa34861917c

      SHA256

      4f02964d97134bc4bb3db12024c716d7aff20afa8ebb949a5f880be369307aa2

      SHA512

      069c4847781bd62162e1847d32f28bc2e61e15938ca53004d2314ce271e18cce2764925798136af363f835fc70cd7c8c41c1e9ab962fb8d65cc97af376f2faff

    • memory/3140-30-0x0000000005AE0000-0x0000000005B46000-memory.dmp
      Filesize

      408KB

    • memory/3140-56-0x0000000007440000-0x000000000745A000-memory.dmp
      Filesize

      104KB

    • memory/3140-67-0x0000000075100000-0x00000000758B0000-memory.dmp
      Filesize

      7.7MB

    • memory/3140-64-0x00000000060D0000-0x00000000060D8000-memory.dmp
      Filesize

      32KB

    • memory/3140-63-0x00000000060E0000-0x00000000060FA000-memory.dmp
      Filesize

      104KB

    • memory/3140-62-0x0000000007680000-0x0000000007694000-memory.dmp
      Filesize

      80KB

    • memory/3140-61-0x0000000007670000-0x000000000767E000-memory.dmp
      Filesize

      56KB

    • memory/3140-60-0x0000000007640000-0x0000000007651000-memory.dmp
      Filesize

      68KB

    • memory/3140-14-0x00000000027E0000-0x0000000002816000-memory.dmp
      Filesize

      216KB

    • memory/3140-15-0x0000000075100000-0x00000000758B0000-memory.dmp
      Filesize

      7.7MB

    • memory/3140-16-0x0000000005270000-0x0000000005898000-memory.dmp
      Filesize

      6.2MB

    • memory/3140-17-0x00000000028A0000-0x00000000028B0000-memory.dmp
      Filesize

      64KB

    • memory/3140-18-0x00000000028A0000-0x00000000028B0000-memory.dmp
      Filesize

      64KB

    • memory/3140-58-0x00000000076C0000-0x0000000007756000-memory.dmp
      Filesize

      600KB

    • memory/3140-57-0x00000000074B0000-0x00000000074BA000-memory.dmp
      Filesize

      40KB

    • memory/3140-37-0x0000000005C50000-0x0000000005FA4000-memory.dmp
      Filesize

      3.3MB

    • memory/3140-55-0x0000000007A80000-0x00000000080FA000-memory.dmp
      Filesize

      6.5MB

    • memory/3140-29-0x0000000005A00000-0x0000000005A66000-memory.dmp
      Filesize

      408KB

    • memory/3140-53-0x0000000007320000-0x00000000073C3000-memory.dmp
      Filesize

      652KB

    • memory/3140-52-0x00000000066C0000-0x00000000066DE000-memory.dmp
      Filesize

      120KB

    • memory/3140-42-0x0000000071540000-0x000000007158C000-memory.dmp
      Filesize

      304KB

    • memory/3140-41-0x00000000066E0000-0x0000000006712000-memory.dmp
      Filesize

      200KB

    • memory/3140-21-0x0000000005960000-0x0000000005982000-memory.dmp
      Filesize

      136KB

    • memory/3140-38-0x0000000004EA0000-0x0000000004EBE000-memory.dmp
      Filesize

      120KB

    • memory/3140-39-0x0000000006180000-0x00000000061CC000-memory.dmp
      Filesize

      304KB

    • memory/3140-40-0x00000000028A0000-0x00000000028B0000-memory.dmp
      Filesize

      64KB

    • memory/3900-20-0x0000000000400000-0x0000000000442000-memory.dmp
      Filesize

      264KB

    • memory/3900-59-0x0000000006A90000-0x0000000006AE0000-memory.dmp
      Filesize

      320KB

    • memory/3900-36-0x0000000005440000-0x0000000005450000-memory.dmp
      Filesize

      64KB

    • memory/3900-32-0x0000000075100000-0x00000000758B0000-memory.dmp
      Filesize

      7.7MB

    • memory/3900-68-0x0000000075100000-0x00000000758B0000-memory.dmp
      Filesize

      7.7MB

    • memory/3900-69-0x0000000005440000-0x0000000005450000-memory.dmp
      Filesize

      64KB

    • memory/4936-23-0x0000000075100000-0x00000000758B0000-memory.dmp
      Filesize

      7.7MB

    • memory/4936-3-0x0000000005960000-0x00000000059F2000-memory.dmp
      Filesize

      584KB

    • memory/4936-5-0x00000000058E0000-0x00000000058EA000-memory.dmp
      Filesize

      40KB

    • memory/4936-1-0x0000000000E40000-0x0000000000EF4000-memory.dmp
      Filesize

      720KB

    • memory/4936-8-0x00000000072B0000-0x0000000007334000-memory.dmp
      Filesize

      528KB

    • memory/4936-7-0x0000000005EC0000-0x0000000005ECC000-memory.dmp
      Filesize

      48KB

    • memory/4936-6-0x0000000005EE0000-0x0000000005EFA000-memory.dmp
      Filesize

      104KB

    • memory/4936-9-0x0000000009910000-0x00000000099AC000-memory.dmp
      Filesize

      624KB

    • memory/4936-4-0x0000000005920000-0x0000000005930000-memory.dmp
      Filesize

      64KB

    • memory/4936-0-0x0000000075100000-0x00000000758B0000-memory.dmp
      Filesize

      7.7MB

    • memory/4936-2-0x0000000005F10000-0x00000000064B4000-memory.dmp
      Filesize

      5.6MB