Analysis

  • max time kernel
    146s
  • max time network
    102s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-06-2024 01:06

General

  • Target

    5186efdfdceb4fa893f40ac77d48ea439cf222d52637b6e8387053906234d536.exe

  • Size

    553KB

  • MD5

    1c4a8ce3141c818a47cc7884a1e628f5

  • SHA1

    5ce55e99104e28d85b3673010efadc57f011db0b

  • SHA256

    5186efdfdceb4fa893f40ac77d48ea439cf222d52637b6e8387053906234d536

  • SHA512

    959929a696078657bed97f4aaf25de9e7e07a9da86bf1c1ad9f3fb207772e2ec052e3f44a365c097820b1b5aafd71f67e8f9d628e6a2f7ca6d42d4a2ab24183e

  • SSDEEP

    12288:6qiSdb7nBOvasD05Inm8zMc//bbtI+TAmAIxMH6WKz:3fPB77Onm8zMc/jCTH6vz

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.sunlacn.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    #_57J#lnfgQs

Signatures

  • AgentTesla

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

  • AgentTesla payload 1 IoCs
  • CustAttr .NET packer 1 IoCs

    Detects CustAttr .NET packer in memory.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 3 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 5 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5186efdfdceb4fa893f40ac77d48ea439cf222d52637b6e8387053906234d536.exe
    "C:\Users\Admin\AppData\Local\Temp\5186efdfdceb4fa893f40ac77d48ea439cf222d52637b6e8387053906234d536.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2880
    • 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\5186efdfdceb4fa893f40ac77d48ea439cf222d52637b6e8387053906234d536.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4536
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\OCFgeyqT.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3268
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\OCFgeyqT" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC06D.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:880
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\OCFgeyqT.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4312
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4628

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

    bc7a1f47784919d0d37da52774525cdc

    SHA1

    55d209c53910e40d0576c98f72af5a0178cbc7ca

    SHA256

    82764e8b67669a72bd52be3435f1f108e145cc5216ce0f9cf75adbe2d6628fc4

    SHA512

    39b1c3c8a0f773a30908558d26f19331a0697466d99a9842a8fde439f914f665a7853f5390a895a992456d532297e7e5a5b78aadf11a3f4923728bb5e7b48fc2

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_fo1fuvne.kgh.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmpC06D.tmp

    Filesize

    1KB

    MD5

    1b42b999916537a278495d9f264e3cda

    SHA1

    7407d9a4726a7af2a9f47cf8b17929e24b1a2fe6

    SHA256

    e169a5baee7a2015f739b60413f32685c9d0c67a67273ef6eb8f66859a44694e

    SHA512

    0f51228f90828f5891baee8080bad9de726461d12712f015e7b47434a897d3eb25523337009b4cf104e2bd73e313b11f066ee874aba0c2a4a8c47b5a160e0b92

  • memory/2880-8-0x00000000055F0000-0x00000000055FC000-memory.dmp

    Filesize

    48KB

  • memory/2880-11-0x0000000000DA0000-0x0000000000E22000-memory.dmp

    Filesize

    520KB

  • memory/2880-6-0x0000000005190000-0x00000000051E6000-memory.dmp

    Filesize

    344KB

  • memory/2880-5-0x0000000005080000-0x000000000508A000-memory.dmp

    Filesize

    40KB

  • memory/2880-4-0x00000000050F0000-0x0000000005182000-memory.dmp

    Filesize

    584KB

  • memory/2880-9-0x00000000752BE000-0x00000000752BF000-memory.dmp

    Filesize

    4KB

  • memory/2880-10-0x00000000752B0000-0x0000000075A60000-memory.dmp

    Filesize

    7.7MB

  • memory/2880-7-0x00000000752B0000-0x0000000075A60000-memory.dmp

    Filesize

    7.7MB

  • memory/2880-12-0x0000000000E60000-0x0000000000EA4000-memory.dmp

    Filesize

    272KB

  • memory/2880-3-0x0000000005600000-0x0000000005BA4000-memory.dmp

    Filesize

    5.6MB

  • memory/2880-2-0x0000000004FB0000-0x000000000504C000-memory.dmp

    Filesize

    624KB

  • memory/2880-49-0x00000000752B0000-0x0000000075A60000-memory.dmp

    Filesize

    7.7MB

  • memory/2880-1-0x0000000000550000-0x00000000005E0000-memory.dmp

    Filesize

    576KB

  • memory/2880-0-0x00000000752BE000-0x00000000752BF000-memory.dmp

    Filesize

    4KB

  • memory/3268-24-0x0000000004970000-0x0000000004992000-memory.dmp

    Filesize

    136KB

  • memory/3268-99-0x0000000006F90000-0x0000000006F9E000-memory.dmp

    Filesize

    56KB

  • memory/3268-27-0x00000000752B0000-0x0000000075A60000-memory.dmp

    Filesize

    7.7MB

  • memory/3268-26-0x0000000004C30000-0x0000000004C96000-memory.dmp

    Filesize

    408KB

  • memory/3268-25-0x0000000004B10000-0x0000000004B76000-memory.dmp

    Filesize

    408KB

  • memory/3268-111-0x00000000752B0000-0x0000000075A60000-memory.dmp

    Filesize

    7.7MB

  • memory/3268-101-0x00000000070A0000-0x00000000070BA000-memory.dmp

    Filesize

    104KB

  • memory/3268-100-0x0000000006FA0000-0x0000000006FB4000-memory.dmp

    Filesize

    80KB

  • memory/3268-22-0x00000000752B0000-0x0000000075A60000-memory.dmp

    Filesize

    7.7MB

  • memory/3268-73-0x0000000006A70000-0x0000000006B13000-memory.dmp

    Filesize

    652KB

  • memory/3268-59-0x0000000005A20000-0x0000000005A3E000-memory.dmp

    Filesize

    120KB

  • memory/3268-97-0x0000000006FE0000-0x0000000007076000-memory.dmp

    Filesize

    600KB

  • memory/3268-62-0x0000000075B60000-0x0000000075BAC000-memory.dmp

    Filesize

    304KB

  • memory/3268-61-0x0000000006A30000-0x0000000006A62000-memory.dmp

    Filesize

    200KB

  • memory/3268-72-0x0000000006000000-0x000000000601E000-memory.dmp

    Filesize

    120KB

  • memory/4312-84-0x0000000075B60000-0x0000000075BAC000-memory.dmp

    Filesize

    304KB

  • memory/4312-94-0x0000000007ED0000-0x000000000854A000-memory.dmp

    Filesize

    6.5MB

  • memory/4536-28-0x0000000006360000-0x00000000066B4000-memory.dmp

    Filesize

    3.3MB

  • memory/4536-18-0x00000000752B0000-0x0000000075A60000-memory.dmp

    Filesize

    7.7MB

  • memory/4536-74-0x0000000075B60000-0x0000000075BAC000-memory.dmp

    Filesize

    304KB

  • memory/4536-96-0x0000000007CC0000-0x0000000007CCA000-memory.dmp

    Filesize

    40KB

  • memory/4536-60-0x0000000006EE0000-0x0000000006F2C000-memory.dmp

    Filesize

    304KB

  • memory/4536-98-0x0000000007E50000-0x0000000007E61000-memory.dmp

    Filesize

    68KB

  • memory/4536-20-0x00000000752B0000-0x0000000075A60000-memory.dmp

    Filesize

    7.7MB

  • memory/4536-21-0x00000000752B0000-0x0000000075A60000-memory.dmp

    Filesize

    7.7MB

  • memory/4536-19-0x0000000005A90000-0x00000000060B8000-memory.dmp

    Filesize

    6.2MB

  • memory/4536-102-0x0000000007F70000-0x0000000007F78000-memory.dmp

    Filesize

    32KB

  • memory/4536-95-0x0000000007C50000-0x0000000007C6A000-memory.dmp

    Filesize

    104KB

  • memory/4536-17-0x0000000005370000-0x00000000053A6000-memory.dmp

    Filesize

    216KB

  • memory/4536-110-0x00000000752B0000-0x0000000075A60000-memory.dmp

    Filesize

    7.7MB

  • memory/4628-47-0x0000000000400000-0x000000000043C000-memory.dmp

    Filesize

    240KB

  • memory/4628-112-0x0000000005360000-0x0000000005378000-memory.dmp

    Filesize

    96KB