Analysis

  • max time kernel
    135s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-05-2023 01:12

General

  • Target

    7170058dac6c9006c7fd6273b4a824277cbac873f61c117b22279ce0cd425b62.exe

  • Size

    962KB

  • MD5

    3217930a87bf8b38ba8d474862548853

  • SHA1

    3ffc1d60ad13db9a291f03b0f8ff35c0281e7d5d

  • SHA256

    7170058dac6c9006c7fd6273b4a824277cbac873f61c117b22279ce0cd425b62

  • SHA512

    295b41f2035888446230a29f214cdfcc78d93eab3f1720387997b16630bda3698b4f3dabd31b4cbf79dc2d319d8cfb59b442ec2c72c74afec1e3b6143a91112f

  • SSDEEP

    24576:R7Q12srPK7afcfX/9e4+l2gNG82VDkB0+9ud:R+Iafcle4U2gNGnYB0z

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5641589629:AAE7PbYkX7JPIEd1r5HHvkG2FiDsJ1HpC0c/

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 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7170058dac6c9006c7fd6273b4a824277cbac873f61c117b22279ce0cd425b62.exe
    "C:\Users\Admin\AppData\Local\Temp\7170058dac6c9006c7fd6273b4a824277cbac873f61c117b22279ce0cd425b62.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4432
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\rpYsHtG.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3476
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rpYsHtG" /XML "C:\Users\Admin\AppData\Local\Temp\tmp44C9.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3708
    • C:\Users\Admin\AppData\Local\Temp\7170058dac6c9006c7fd6273b4a824277cbac873f61c117b22279ce0cd425b62.exe
      "C:\Users\Admin\AppData\Local\Temp\7170058dac6c9006c7fd6273b4a824277cbac873f61c117b22279ce0cd425b62.exe"
      2⤵
        PID:4624
      • C:\Users\Admin\AppData\Local\Temp\7170058dac6c9006c7fd6273b4a824277cbac873f61c117b22279ce0cd425b62.exe
        "C:\Users\Admin\AppData\Local\Temp\7170058dac6c9006c7fd6273b4a824277cbac873f61c117b22279ce0cd425b62.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:1120

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scheduled Task

    1
    T1053

    Persistence

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Credential Access

    Credentials in Files

    3
    T1081

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Collection

    Data from Local System

    3
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\7170058dac6c9006c7fd6273b4a824277cbac873f61c117b22279ce0cd425b62.exe.log
      Filesize

      1KB

      MD5

      b7b9acb869ccc7f7ecb5304ec0384dee

      SHA1

      6a90751c95817903ee833d59a0abbef425a613b3

      SHA256

      8cb00a15cd942a1861c573d86d6fb430512c8e2f80f6349f48b16b8709ca7aa4

      SHA512

      7bec881ac5f59ac26f1be1e7e26d63f040c06369de10c1c246e531a4395d27c335d9acc647ecdedb48ed37bdc2dc405a4cfc11762e1c00659a49be259eaf8764

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qdlpfnvo.b3h.ps1
      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • C:\Users\Admin\AppData\Local\Temp\tmp44C9.tmp
      Filesize

      1KB

      MD5

      6f64673d0dce0ea280022f4fea79c862

      SHA1

      34b31add6c730ec988fd837982830f2d17b0708b

      SHA256

      ba60ef314af464659c87da2dc830c81784472309851e3107d148d7d5ceccba66

      SHA512

      b021816ea7d1fafa49bd2dfcdd29d84f4863d269b13667fb351ea1a96da8884df22746599727a90d3b93c7985985537e55ce0158e5264319622812477e919f3a

    • memory/1120-197-0x0000000005130000-0x0000000005140000-memory.dmp
      Filesize

      64KB

    • memory/1120-186-0x0000000007010000-0x00000000071D2000-memory.dmp
      Filesize

      1.8MB

    • memory/1120-185-0x0000000006DF0000-0x0000000006E40000-memory.dmp
      Filesize

      320KB

    • memory/1120-164-0x0000000005130000-0x0000000005140000-memory.dmp
      Filesize

      64KB

    • memory/1120-153-0x0000000005030000-0x0000000005096000-memory.dmp
      Filesize

      408KB

    • memory/1120-149-0x0000000000400000-0x0000000000430000-memory.dmp
      Filesize

      192KB

    • memory/3476-159-0x0000000004ED0000-0x0000000004F36000-memory.dmp
      Filesize

      408KB

    • memory/3476-183-0x0000000007180000-0x0000000007216000-memory.dmp
      Filesize

      600KB

    • memory/3476-148-0x0000000005030000-0x0000000005658000-memory.dmp
      Filesize

      6.2MB

    • memory/3476-145-0x0000000002490000-0x00000000024A0000-memory.dmp
      Filesize

      64KB

    • memory/3476-144-0x00000000022B0000-0x00000000022E6000-memory.dmp
      Filesize

      216KB

    • memory/3476-194-0x0000000007220000-0x0000000007228000-memory.dmp
      Filesize

      32KB

    • memory/3476-152-0x0000000004DB0000-0x0000000004DD2000-memory.dmp
      Filesize

      136KB

    • memory/3476-193-0x0000000007240000-0x000000000725A000-memory.dmp
      Filesize

      104KB

    • memory/3476-184-0x0000000007130000-0x000000000713E000-memory.dmp
      Filesize

      56KB

    • memory/3476-146-0x0000000002490000-0x00000000024A0000-memory.dmp
      Filesize

      64KB

    • memory/3476-165-0x0000000005C00000-0x0000000005C1E000-memory.dmp
      Filesize

      120KB

    • memory/3476-166-0x0000000006BD0000-0x0000000006C02000-memory.dmp
      Filesize

      200KB

    • memory/3476-167-0x0000000070BB0000-0x0000000070BFC000-memory.dmp
      Filesize

      304KB

    • memory/3476-177-0x0000000006190000-0x00000000061AE000-memory.dmp
      Filesize

      120KB

    • memory/3476-178-0x0000000002490000-0x00000000024A0000-memory.dmp
      Filesize

      64KB

    • memory/3476-179-0x000000007FA40000-0x000000007FA50000-memory.dmp
      Filesize

      64KB

    • memory/3476-180-0x0000000007550000-0x0000000007BCA000-memory.dmp
      Filesize

      6.5MB

    • memory/3476-181-0x0000000006F00000-0x0000000006F1A000-memory.dmp
      Filesize

      104KB

    • memory/3476-182-0x0000000006F70000-0x0000000006F7A000-memory.dmp
      Filesize

      40KB

    • memory/4432-137-0x0000000007A70000-0x0000000007A80000-memory.dmp
      Filesize

      64KB

    • memory/4432-138-0x0000000007A70000-0x0000000007A80000-memory.dmp
      Filesize

      64KB

    • memory/4432-136-0x0000000007970000-0x000000000797A000-memory.dmp
      Filesize

      40KB

    • memory/4432-135-0x0000000007880000-0x0000000007912000-memory.dmp
      Filesize

      584KB

    • memory/4432-133-0x0000000000900000-0x00000000009F6000-memory.dmp
      Filesize

      984KB

    • memory/4432-139-0x0000000005960000-0x00000000059FC000-memory.dmp
      Filesize

      624KB

    • memory/4432-134-0x0000000007D40000-0x00000000082E4000-memory.dmp
      Filesize

      5.6MB