Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-06-2024 01:45

General

  • Target

    27b38e7f384f2500f598c68d451d3abebbea3b30c7f65505a870f7819018d5aa.exe

  • Size

    712KB

  • MD5

    38d30f05e8c4ad2e0061948d66e245b1

  • SHA1

    1837d9e6f35f9a67a6c4909020f737050bbb7ba7

  • SHA256

    27b38e7f384f2500f598c68d451d3abebbea3b30c7f65505a870f7819018d5aa

  • SHA512

    f05579219a0761e558bd9ca96feafa697791a8fba153b7ccf8bfb2169ff52dabe286bb390282f894d74be9862161cca0d86a33340e6b0c26932da6402e2ac3a3

  • SSDEEP

    12288:LVmKt/rFfa7mlaGLcuz2PUPCRYDdhKmmVF5jyvgBC7kQW5gWR2ZQ2O4dh1:8KN5imJyPsCRYD3K1X2vCHQykZQ8dh1

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.merlinmotorworks.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Merlin1080S

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 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.

  • 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 9 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\27b38e7f384f2500f598c68d451d3abebbea3b30c7f65505a870f7819018d5aa.exe
    "C:\Users\Admin\AppData\Local\Temp\27b38e7f384f2500f598c68d451d3abebbea3b30c7f65505a870f7819018d5aa.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4524
    • 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\27b38e7f384f2500f598c68d451d3abebbea3b30c7f65505a870f7819018d5aa.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4636
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\YRcUAyKHnV.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3304
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YRcUAyKHnV" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7474.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4016
    • C:\Users\Admin\AppData\Local\Temp\27b38e7f384f2500f598c68d451d3abebbea3b30c7f65505a870f7819018d5aa.exe
      "C:\Users\Admin\AppData\Local\Temp\27b38e7f384f2500f598c68d451d3abebbea3b30c7f65505a870f7819018d5aa.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2736

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

    ab436ca73b62e0677a54d52005035e8f

    SHA1

    74df163b6d5e724990a298f01de14ee7d59f1e74

    SHA256

    92e98b08e2cb517244b4d3c6ac822381a5aded0045bcde5eaf3da6ffca3042af

    SHA512

    f2cfa3dedb55246e47456ecbecceb9c4f1987fad14a36e14e0d2c9ec372e66dae5abcb87e32f161a72bb738fc483ee0ac1f0883ad7345bfadd4506784571e327

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_shxqxasb.spi.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp7474.tmp

    Filesize

    1KB

    MD5

    3769d3a99e81099d4505994d358ef550

    SHA1

    ff16c1a265d3a5a2879743b294da8b13e08e4d3c

    SHA256

    c3455bbbdb6620fab0201a4fac48208a3851d756afde2d8ed4d9a8e6fab570a6

    SHA512

    0f9711fcbfb45b0befb2b5183ee398c668383933a47b4117d561ef039fbf433784abdc1e5cf325e159680f3b707de3e7dc23e677d5334d8ed6f172eb322a3d7a

  • memory/2736-22-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2736-90-0x00000000067C0000-0x0000000006810000-memory.dmp

    Filesize

    320KB

  • memory/3304-39-0x0000000074840000-0x0000000074FF0000-memory.dmp

    Filesize

    7.7MB

  • memory/3304-71-0x0000000006930000-0x000000000694E000-memory.dmp

    Filesize

    120KB

  • memory/3304-38-0x0000000005D20000-0x0000000006074000-memory.dmp

    Filesize

    3.3MB

  • memory/3304-79-0x00000000078D0000-0x00000000078DE000-memory.dmp

    Filesize

    56KB

  • memory/3304-82-0x00000000079C0000-0x00000000079C8000-memory.dmp

    Filesize

    32KB

  • memory/3304-33-0x0000000074840000-0x0000000074FF0000-memory.dmp

    Filesize

    7.7MB

  • memory/3304-88-0x0000000074840000-0x0000000074FF0000-memory.dmp

    Filesize

    7.7MB

  • memory/3304-21-0x0000000074840000-0x0000000074FF0000-memory.dmp

    Filesize

    7.7MB

  • memory/3304-51-0x0000000006950000-0x0000000006982000-memory.dmp

    Filesize

    200KB

  • memory/3304-52-0x0000000070F10000-0x0000000070F5C000-memory.dmp

    Filesize

    304KB

  • memory/4524-7-0x0000000006E60000-0x0000000006E6E000-memory.dmp

    Filesize

    56KB

  • memory/4524-0-0x000000007484E000-0x000000007484F000-memory.dmp

    Filesize

    4KB

  • memory/4524-10-0x000000000AE40000-0x000000000AEDC000-memory.dmp

    Filesize

    624KB

  • memory/4524-9-0x00000000085F0000-0x0000000008674000-memory.dmp

    Filesize

    528KB

  • memory/4524-8-0x00000000085B0000-0x00000000085C0000-memory.dmp

    Filesize

    64KB

  • memory/4524-27-0x0000000074840000-0x0000000074FF0000-memory.dmp

    Filesize

    7.7MB

  • memory/4524-6-0x0000000005AA0000-0x0000000005AB6000-memory.dmp

    Filesize

    88KB

  • memory/4524-5-0x0000000074840000-0x0000000074FF0000-memory.dmp

    Filesize

    7.7MB

  • memory/4524-4-0x00000000058C0000-0x00000000058CA000-memory.dmp

    Filesize

    40KB

  • memory/4524-3-0x0000000005930000-0x00000000059C2000-memory.dmp

    Filesize

    584KB

  • memory/4524-2-0x0000000005E40000-0x00000000063E4000-memory.dmp

    Filesize

    5.6MB

  • memory/4524-1-0x0000000000E00000-0x0000000000EB8000-memory.dmp

    Filesize

    736KB

  • memory/4636-16-0x0000000005750000-0x0000000005D78000-memory.dmp

    Filesize

    6.2MB

  • memory/4636-50-0x0000000006550000-0x000000000659C000-memory.dmp

    Filesize

    304KB

  • memory/4636-53-0x0000000070F10000-0x0000000070F5C000-memory.dmp

    Filesize

    304KB

  • memory/4636-73-0x0000000007510000-0x00000000075B3000-memory.dmp

    Filesize

    652KB

  • memory/4636-49-0x00000000064F0000-0x000000000650E000-memory.dmp

    Filesize

    120KB

  • memory/4636-18-0x0000000074840000-0x0000000074FF0000-memory.dmp

    Filesize

    7.7MB

  • memory/4636-74-0x0000000007E90000-0x000000000850A000-memory.dmp

    Filesize

    6.5MB

  • memory/4636-75-0x0000000007850000-0x000000000786A000-memory.dmp

    Filesize

    104KB

  • memory/4636-76-0x00000000078C0000-0x00000000078CA000-memory.dmp

    Filesize

    40KB

  • memory/4636-77-0x0000000007AD0000-0x0000000007B66000-memory.dmp

    Filesize

    600KB

  • memory/4636-78-0x0000000007A50000-0x0000000007A61000-memory.dmp

    Filesize

    68KB

  • memory/4636-23-0x0000000005480000-0x00000000054A2000-memory.dmp

    Filesize

    136KB

  • memory/4636-80-0x0000000007A90000-0x0000000007AA4000-memory.dmp

    Filesize

    80KB

  • memory/4636-81-0x0000000007B90000-0x0000000007BAA000-memory.dmp

    Filesize

    104KB

  • memory/4636-24-0x00000000056A0000-0x0000000005706000-memory.dmp

    Filesize

    408KB

  • memory/4636-89-0x0000000074840000-0x0000000074FF0000-memory.dmp

    Filesize

    7.7MB

  • memory/4636-25-0x0000000005DF0000-0x0000000005E56000-memory.dmp

    Filesize

    408KB

  • memory/4636-20-0x0000000074840000-0x0000000074FF0000-memory.dmp

    Filesize

    7.7MB

  • memory/4636-17-0x0000000074840000-0x0000000074FF0000-memory.dmp

    Filesize

    7.7MB

  • memory/4636-15-0x0000000002C20000-0x0000000002C56000-memory.dmp

    Filesize

    216KB