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Analysis

  • max time kernel
    140s
  • max time network
    119s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240419-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/05/2024, 01:53

General

  • Target

    a682de1d74f7f924fefe2a35d48962c15a33c30029187c6e080235359d7ff0af.exe

  • Size

    676KB

  • MD5

    5f83306eee97a41d878ca9372eb8e9c1

  • SHA1

    4d63d299738a9aeaa9163f0088e0eb564ee776c8

  • SHA256

    a682de1d74f7f924fefe2a35d48962c15a33c30029187c6e080235359d7ff0af

  • SHA512

    7e72bf1a8a6f666f6ee6151ed34cf40e743d736f08559afe501249a59b28e4f7e4052a1779b4ecbdff8c1901ac1c7c46946b4a5ad719c1f2c5a89800a87a6dab

  • SSDEEP

    12288:qeB+8ut3o4a8TOgfWUiAcoIXn7xiHoaYyqido0gEXlciWdy/wXCQI:88Ko4bf2AZiEIaYedNgOvQXB

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.kanya-mittaphab.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    E81ZbeDb]r]+

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
  • Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 1 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
  • 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.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\a682de1d74f7f924fefe2a35d48962c15a33c30029187c6e080235359d7ff0af.exe
    "C:\Users\Admin\AppData\Local\Temp\a682de1d74f7f924fefe2a35d48962c15a33c30029187c6e080235359d7ff0af.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4924
    • 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\a682de1d74f7f924fefe2a35d48962c15a33c30029187c6e080235359d7ff0af.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2596
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\lXrEcXgkZho.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4740
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\lXrEcXgkZho" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5DA1.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3836
    • C:\Users\Admin\AppData\Local\Temp\a682de1d74f7f924fefe2a35d48962c15a33c30029187c6e080235359d7ff0af.exe
      "C:\Users\Admin\AppData\Local\Temp\a682de1d74f7f924fefe2a35d48962c15a33c30029187c6e080235359d7ff0af.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1080

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

    1b7e6721671fbd1dcad94d4882801d8c

    SHA1

    931e67432bfd6e893e1ca803c6b9d0cc8ec42761

    SHA256

    4373fe15cc72d6467400398c4dc3d7793fd886474f017e80b359bd628fb79ebc

    SHA512

    2215a77e41842b3096226f861699684ae17dea8bf7d61962fcec1a0bcd1af19848cc5d1353cb03745165becc161ccb5374531dadacd9180dd5c1ca62ba7bcfb9

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_mmgpbsdd.rxk.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp5DA1.tmp

    Filesize

    1KB

    MD5

    dc003529b3ea116c5c1cab0aa163bdac

    SHA1

    a4228fd825be3cbc379cb2f5449537d9957a5de8

    SHA256

    4fd58d57f68f3ac5bf3f7974400fa3e901335565410f140c572378df0ed531c0

    SHA512

    efc8f7ff876ecbe5b1e5dbaac3ff83dcbd2cd6ee6617899e5fe88372396b5564da4fb495eefcfceaae0753ae53c37d1ad88e79932378341d374a4ed620df423b

  • memory/1080-83-0x0000000006830000-0x0000000006880000-memory.dmp

    Filesize

    320KB

  • memory/1080-29-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2596-37-0x00000000749D0000-0x0000000075180000-memory.dmp

    Filesize

    7.7MB

  • memory/2596-78-0x0000000007A90000-0x0000000007AA1000-memory.dmp

    Filesize

    68KB

  • memory/2596-86-0x00000000749D0000-0x0000000075180000-memory.dmp

    Filesize

    7.7MB

  • memory/2596-82-0x0000000007BB0000-0x0000000007BB8000-memory.dmp

    Filesize

    32KB

  • memory/2596-81-0x0000000007BD0000-0x0000000007BEA000-memory.dmp

    Filesize

    104KB

  • memory/2596-15-0x0000000004FB0000-0x0000000004FE6000-memory.dmp

    Filesize

    216KB

  • memory/2596-16-0x0000000005640000-0x0000000005C68000-memory.dmp

    Filesize

    6.2MB

  • memory/2596-17-0x00000000749D0000-0x0000000075180000-memory.dmp

    Filesize

    7.7MB

  • memory/2596-18-0x00000000749D0000-0x0000000075180000-memory.dmp

    Filesize

    7.7MB

  • memory/2596-80-0x0000000007AD0000-0x0000000007AE4000-memory.dmp

    Filesize

    80KB

  • memory/2596-22-0x0000000005ED0000-0x0000000005F36000-memory.dmp

    Filesize

    408KB

  • memory/2596-50-0x0000000006B70000-0x0000000006BBC000-memory.dmp

    Filesize

    304KB

  • memory/2596-76-0x0000000007900000-0x000000000790A000-memory.dmp

    Filesize

    40KB

  • memory/2596-34-0x0000000005F40000-0x0000000006294000-memory.dmp

    Filesize

    3.3MB

  • memory/2596-74-0x0000000007ED0000-0x000000000854A000-memory.dmp

    Filesize

    6.5MB

  • memory/2596-21-0x0000000005E60000-0x0000000005EC6000-memory.dmp

    Filesize

    408KB

  • memory/2596-20-0x0000000005DC0000-0x0000000005DE2000-memory.dmp

    Filesize

    136KB

  • memory/2596-63-0x0000000007750000-0x00000000077F3000-memory.dmp

    Filesize

    652KB

  • memory/2596-62-0x0000000006B50000-0x0000000006B6E000-memory.dmp

    Filesize

    120KB

  • memory/2596-51-0x0000000006AC0000-0x0000000006AF2000-memory.dmp

    Filesize

    200KB

  • memory/2596-52-0x0000000075230000-0x000000007527C000-memory.dmp

    Filesize

    304KB

  • memory/2596-49-0x0000000006540000-0x000000000655E000-memory.dmp

    Filesize

    120KB

  • memory/4740-77-0x0000000007B30000-0x0000000007BC6000-memory.dmp

    Filesize

    600KB

  • memory/4740-48-0x00000000749D0000-0x0000000075180000-memory.dmp

    Filesize

    7.7MB

  • memory/4740-90-0x00000000749D0000-0x0000000075180000-memory.dmp

    Filesize

    7.7MB

  • memory/4740-79-0x0000000007AE0000-0x0000000007AEE000-memory.dmp

    Filesize

    56KB

  • memory/4740-64-0x0000000075230000-0x000000007527C000-memory.dmp

    Filesize

    304KB

  • memory/4740-36-0x00000000749D0000-0x0000000075180000-memory.dmp

    Filesize

    7.7MB

  • memory/4740-75-0x00000000078B0000-0x00000000078CA000-memory.dmp

    Filesize

    104KB

  • memory/4740-23-0x00000000749D0000-0x0000000075180000-memory.dmp

    Filesize

    7.7MB

  • memory/4924-7-0x0000000005790000-0x00000000057A8000-memory.dmp

    Filesize

    96KB

  • memory/4924-4-0x0000000005350000-0x000000000535A000-memory.dmp

    Filesize

    40KB

  • memory/4924-5-0x00000000055C0000-0x000000000565C000-memory.dmp

    Filesize

    624KB

  • memory/4924-0-0x00000000749DE000-0x00000000749DF000-memory.dmp

    Filesize

    4KB

  • memory/4924-6-0x00000000749D0000-0x0000000075180000-memory.dmp

    Filesize

    7.7MB

  • memory/4924-10-0x0000000006710000-0x0000000006794000-memory.dmp

    Filesize

    528KB

  • memory/4924-9-0x00000000065A0000-0x00000000065B6000-memory.dmp

    Filesize

    88KB

  • memory/4924-3-0x0000000005430000-0x00000000054C2000-memory.dmp

    Filesize

    584KB

  • memory/4924-8-0x0000000006590000-0x000000000659E000-memory.dmp

    Filesize

    56KB

  • memory/4924-2-0x00000000059E0000-0x0000000005F84000-memory.dmp

    Filesize

    5.6MB

  • memory/4924-1-0x00000000008A0000-0x000000000094E000-memory.dmp

    Filesize

    696KB

  • memory/4924-47-0x00000000749D0000-0x0000000075180000-memory.dmp

    Filesize

    7.7MB