Analysis

  • max time kernel
    129s
  • max time network
    94s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-03-2024 15:14

General

  • Target

    08f1ec502ecfa226f8d932efe0c39c8c_JaffaCakes118.exe

  • Size

    667KB

  • MD5

    08f1ec502ecfa226f8d932efe0c39c8c

  • SHA1

    78d5dc529125f9caf07de0292d504e8f98a6db8f

  • SHA256

    28be313c29aa0d92e7a3dbb349a1af15375755d3343352caa8041bcbcdaa4496

  • SHA512

    de274992c1e7bfcd142589b9ab222a5f2ba0dff88a0599096028ead2d83624dc1bbdbeae88c38e31fa9b35436c4c796dfc30cf7c85c9a62598e9654eb63ae95a

  • SSDEEP

    12288:ussbXphXpUSBVx5CsCC9bs2k63O4rfDOnjdyVsydee4BZ/VhBbLVlHK:usap1ppB0+s2l3OQ+jdM

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.bsia.co.in
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    21mbsia@)@!Y

Signatures

  • AgentTesla

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

  • AgentTesla payload 1 IoCs
  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\08f1ec502ecfa226f8d932efe0c39c8c_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\08f1ec502ecfa226f8d932efe0c39c8c_JaffaCakes118.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Checks computer location settings
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4712
    • 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\08f1ec502ecfa226f8d932efe0c39c8c_JaffaCakes118.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1012
    • C:\Users\Admin\AppData\Local\Temp\08f1ec502ecfa226f8d932efe0c39c8c_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\08f1ec502ecfa226f8d932efe0c39c8c_JaffaCakes118.exe"
      2⤵
        PID:2328
      • C:\Users\Admin\AppData\Local\Temp\08f1ec502ecfa226f8d932efe0c39c8c_JaffaCakes118.exe
        "C:\Users\Admin\AppData\Local\Temp\08f1ec502ecfa226f8d932efe0c39c8c_JaffaCakes118.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:4688

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Defense Evasion

    Virtualization/Sandbox Evasion

    2
    T1497

    Credential Access

    Unsecured Credentials

    4
    T1552

    Credentials In Files

    3
    T1552.001

    Credentials in Registry

    1
    T1552.002

    Discovery

    Query Registry

    5
    T1012

    Virtualization/Sandbox Evasion

    2
    T1497

    System Information Discovery

    4
    T1082

    Peripheral Device Discovery

    1
    T1120

    Collection

    Data from Local System

    4
    T1005

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\08f1ec502ecfa226f8d932efe0c39c8c_JaffaCakes118.exe.log
      Filesize

      1KB

      MD5

      e08f822522c617a40840c62e4b0fb45e

      SHA1

      ae516dca4da5234be6676d3f234c19ec55725be7

      SHA256

      bd9d5e9f7fe6fcff17d873555d4077d15f7d6cdda1183e7f7d278b735ffe1fd7

      SHA512

      894a7fb7bbc18ac6ba13378f58a7db80ad00d6080be9a66b01cae8e23e41d9d2d4cd53c1e20669356b73590c8a3ebfda4bdda3258f81240db56c4a81b7313fe4

    • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_0sl0mdjn.cin.ps1
      Filesize

      60B

      MD5

      d17fe0a3f47be24a6453e9ef58c94641

      SHA1

      6ab83620379fc69f80c0242105ddffd7d98d5d9d

      SHA256

      96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

      SHA512

      5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

    • memory/1012-54-0x0000000007170000-0x0000000007206000-memory.dmp
      Filesize

      600KB

    • memory/1012-15-0x0000000004DC0000-0x00000000053E8000-memory.dmp
      Filesize

      6.2MB

    • memory/1012-34-0x0000000005BD0000-0x0000000005BEE000-memory.dmp
      Filesize

      120KB

    • memory/1012-62-0x0000000074680000-0x0000000074E30000-memory.dmp
      Filesize

      7.7MB

    • memory/1012-59-0x0000000007210000-0x0000000007218000-memory.dmp
      Filesize

      32KB

    • memory/1012-58-0x0000000007230000-0x000000000724A000-memory.dmp
      Filesize

      104KB

    • memory/1012-57-0x0000000007130000-0x0000000007144000-memory.dmp
      Filesize

      80KB

    • memory/1012-56-0x0000000007120000-0x000000000712E000-memory.dmp
      Filesize

      56KB

    • memory/1012-55-0x00000000070F0000-0x0000000007101000-memory.dmp
      Filesize

      68KB

    • memory/1012-53-0x0000000006F60000-0x0000000006F6A000-memory.dmp
      Filesize

      40KB

    • memory/1012-12-0x0000000074680000-0x0000000074E30000-memory.dmp
      Filesize

      7.7MB

    • memory/1012-14-0x0000000002400000-0x0000000002410000-memory.dmp
      Filesize

      64KB

    • memory/1012-13-0x0000000002290000-0x00000000022C6000-memory.dmp
      Filesize

      216KB

    • memory/1012-36-0x000000007F0E0000-0x000000007F0F0000-memory.dmp
      Filesize

      64KB

    • memory/1012-16-0x0000000004AF0000-0x0000000004B12000-memory.dmp
      Filesize

      136KB

    • memory/1012-52-0x0000000006EF0000-0x0000000006F0A000-memory.dmp
      Filesize

      104KB

    • memory/1012-51-0x0000000007530000-0x0000000007BAA000-memory.dmp
      Filesize

      6.5MB

    • memory/1012-50-0x0000000006DA0000-0x0000000006E43000-memory.dmp
      Filesize

      652KB

    • memory/1012-49-0x0000000002400000-0x0000000002410000-memory.dmp
      Filesize

      64KB

    • memory/1012-48-0x0000000006180000-0x000000000619E000-memory.dmp
      Filesize

      120KB

    • memory/1012-23-0x00000000055D0000-0x0000000005924000-memory.dmp
      Filesize

      3.3MB

    • memory/1012-38-0x0000000074F30000-0x0000000074F7C000-memory.dmp
      Filesize

      304KB

    • memory/1012-35-0x0000000005C60000-0x0000000005CAC000-memory.dmp
      Filesize

      304KB

    • memory/1012-37-0x00000000061A0000-0x00000000061D2000-memory.dmp
      Filesize

      200KB

    • memory/1012-18-0x0000000004C90000-0x0000000004CF6000-memory.dmp
      Filesize

      408KB

    • memory/4688-66-0x0000000001470000-0x00000000014C0000-memory.dmp
      Filesize

      320KB

    • memory/4688-63-0x00000000059D0000-0x00000000059E8000-memory.dmp
      Filesize

      96KB

    • memory/4688-67-0x00000000056D0000-0x00000000056E0000-memory.dmp
      Filesize

      64KB

    • memory/4688-65-0x00000000056D0000-0x00000000056E0000-memory.dmp
      Filesize

      64KB

    • memory/4688-21-0x0000000074680000-0x0000000074E30000-memory.dmp
      Filesize

      7.7MB

    • memory/4688-64-0x0000000074680000-0x0000000074E30000-memory.dmp
      Filesize

      7.7MB

    • memory/4688-33-0x00000000056D0000-0x00000000056E0000-memory.dmp
      Filesize

      64KB

    • memory/4688-17-0x0000000000400000-0x000000000043C000-memory.dmp
      Filesize

      240KB

    • memory/4712-11-0x0000000009AD0000-0x0000000009B36000-memory.dmp
      Filesize

      408KB

    • memory/4712-0-0x0000000000920000-0x00000000009CE000-memory.dmp
      Filesize

      696KB

    • memory/4712-10-0x0000000009210000-0x0000000009270000-memory.dmp
      Filesize

      384KB

    • memory/4712-9-0x0000000009170000-0x000000000920C000-memory.dmp
      Filesize

      624KB

    • memory/4712-8-0x0000000007820000-0x0000000007830000-memory.dmp
      Filesize

      64KB

    • memory/4712-7-0x0000000074680000-0x0000000074E30000-memory.dmp
      Filesize

      7.7MB

    • memory/4712-6-0x0000000002D40000-0x0000000002D4A000-memory.dmp
      Filesize

      40KB

    • memory/4712-5-0x0000000007850000-0x000000000785A000-memory.dmp
      Filesize

      40KB

    • memory/4712-3-0x0000000007870000-0x0000000007902000-memory.dmp
      Filesize

      584KB

    • memory/4712-2-0x0000000007D40000-0x00000000082E4000-memory.dmp
      Filesize

      5.6MB

    • memory/4712-22-0x0000000074680000-0x0000000074E30000-memory.dmp
      Filesize

      7.7MB

    • memory/4712-4-0x0000000007820000-0x0000000007830000-memory.dmp
      Filesize

      64KB

    • memory/4712-1-0x0000000074680000-0x0000000074E30000-memory.dmp
      Filesize

      7.7MB