Analysis

  • max time kernel
    40s
  • max time network
    49s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-06-2024 13:39

General

  • Target

    Scan-TNB-#2024393_SNB-4427394_13-06-2024.exe

  • Size

    1.1MB

  • MD5

    1a838c9f467cdc7804418b288595338e

  • SHA1

    5e89201a28803287a67bf11a7045e711b83758a1

  • SHA256

    59b4c6293d3b0c1340df2e3e1ad4713f5d5e95e2585a58962936f69a641227a3

  • SHA512

    41fb2ba04b72e1931aa8adb5435b57019cfb00a5aaad3dd92d5a917fbd36c530d51de31f166ddf5ff1e7182e47609101a4dabeee96ad6d69996ee49499c46121

  • SSDEEP

    24576:RmgyC5o2GSO6hVceaqIUobQW3xlN3r7UBSEezCCnD/eEo2Ll:Rv3e2dhV9cUobL3LN7INCDdo2

Malware Config

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 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.

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

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

  • Scheduled Task/Job: Scheduled Task 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\Scan-TNB-#2024393_SNB-4427394_13-06-2024.exe
    "C:\Users\Admin\AppData\Local\Temp\Scan-TNB-#2024393_SNB-4427394_13-06-2024.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4776
    • 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\Scan-TNB-#2024393_SNB-4427394_13-06-2024.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2348
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\KZtbuXSWhNL.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3228
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KZtbuXSWhNL" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7B0C.tmp"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:2772
    • C:\Users\Admin\AppData\Local\Temp\Scan-TNB-#2024393_SNB-4427394_13-06-2024.exe
      "C:\Users\Admin\AppData\Local\Temp\Scan-TNB-#2024393_SNB-4427394_13-06-2024.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:536

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

    a03eab2a4a6f1d737d13d2245a97b424

    SHA1

    6ffc417d746d8e076c5056ec606628724f826aee

    SHA256

    b1eeb0c448cd830fe2efc2b6ac773629ecc416511940759701a4546a403a6bd2

    SHA512

    7ecb8f8f4d81882d52eccc46611e6ef8d62eb7786ef888d1711a42916fed550e4c32b5f50411d47c1824d29f77cb7304ed06cc306d03d453d51009417ce9f423

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_uv4asv51.od1.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp7B0C.tmp

    Filesize

    1KB

    MD5

    97edbdf22e6d0dcb83bc44407cd894eb

    SHA1

    cf0cdc3aeddec66f494b42ea40258263b059efa6

    SHA256

    7a6756a3d4a0ff623ecdb4cfdbb18497fba074f7b13fa23f901698c57488cd13

    SHA512

    23c8e8350ee45a0618d1dea474334ed376c43c0db08767d92275a39b2ac16e8b44230e1012cdb496a71b8c3955096135ec08c9ca12be937a9ec0f1949640e157

  • memory/536-89-0x0000000006330000-0x0000000006380000-memory.dmp

    Filesize

    320KB

  • memory/536-44-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2348-74-0x0000000007CA0000-0x000000000831A000-memory.dmp

    Filesize

    6.5MB

  • memory/2348-49-0x0000000006900000-0x000000000694C000-memory.dmp

    Filesize

    304KB

  • memory/2348-87-0x0000000075350000-0x0000000075B00000-memory.dmp

    Filesize

    7.7MB

  • memory/2348-80-0x00000000079A0000-0x00000000079BA000-memory.dmp

    Filesize

    104KB

  • memory/2348-14-0x0000000001430000-0x0000000001466000-memory.dmp

    Filesize

    216KB

  • memory/2348-15-0x0000000075350000-0x0000000075B00000-memory.dmp

    Filesize

    7.7MB

  • memory/2348-16-0x0000000005600000-0x0000000005C28000-memory.dmp

    Filesize

    6.2MB

  • memory/2348-17-0x0000000075350000-0x0000000075B00000-memory.dmp

    Filesize

    7.7MB

  • memory/2348-19-0x0000000005480000-0x00000000054A2000-memory.dmp

    Filesize

    136KB

  • memory/2348-20-0x0000000005C30000-0x0000000005C96000-memory.dmp

    Filesize

    408KB

  • memory/2348-81-0x0000000007980000-0x0000000007988000-memory.dmp

    Filesize

    32KB

  • memory/2348-21-0x0000000005D10000-0x0000000005D76000-memory.dmp

    Filesize

    408KB

  • memory/2348-18-0x0000000075350000-0x0000000075B00000-memory.dmp

    Filesize

    7.7MB

  • memory/2348-79-0x00000000078A0000-0x00000000078B4000-memory.dmp

    Filesize

    80KB

  • memory/2348-33-0x0000000005D80000-0x00000000060D4000-memory.dmp

    Filesize

    3.3MB

  • memory/2348-78-0x0000000007890000-0x000000000789E000-memory.dmp

    Filesize

    56KB

  • memory/2348-75-0x00000000076D0000-0x00000000076DA000-memory.dmp

    Filesize

    40KB

  • memory/2348-72-0x0000000007320000-0x00000000073C3000-memory.dmp

    Filesize

    652KB

  • memory/2348-50-0x0000000006890000-0x00000000068C2000-memory.dmp

    Filesize

    200KB

  • memory/2348-51-0x0000000075C00000-0x0000000075C4C000-memory.dmp

    Filesize

    304KB

  • memory/2348-48-0x0000000006310000-0x000000000632E000-memory.dmp

    Filesize

    120KB

  • memory/2348-70-0x0000000007300000-0x000000000731E000-memory.dmp

    Filesize

    120KB

  • memory/3228-76-0x0000000007A80000-0x0000000007B16000-memory.dmp

    Filesize

    600KB

  • memory/3228-88-0x0000000075350000-0x0000000075B00000-memory.dmp

    Filesize

    7.7MB

  • memory/3228-43-0x0000000075350000-0x0000000075B00000-memory.dmp

    Filesize

    7.7MB

  • memory/3228-46-0x0000000075350000-0x0000000075B00000-memory.dmp

    Filesize

    7.7MB

  • memory/3228-52-0x0000000075C00000-0x0000000075C4C000-memory.dmp

    Filesize

    304KB

  • memory/3228-77-0x0000000007A00000-0x0000000007A11000-memory.dmp

    Filesize

    68KB

  • memory/3228-73-0x0000000007800000-0x000000000781A000-memory.dmp

    Filesize

    104KB

  • memory/3228-28-0x0000000075350000-0x0000000075B00000-memory.dmp

    Filesize

    7.7MB

  • memory/4776-4-0x0000000005460000-0x000000000546A000-memory.dmp

    Filesize

    40KB

  • memory/4776-0-0x000000007535E000-0x000000007535F000-memory.dmp

    Filesize

    4KB

  • memory/4776-47-0x0000000075350000-0x0000000075B00000-memory.dmp

    Filesize

    7.7MB

  • memory/4776-6-0x0000000075350000-0x0000000075B00000-memory.dmp

    Filesize

    7.7MB

  • memory/4776-5-0x0000000005800000-0x000000000589C000-memory.dmp

    Filesize

    624KB

  • memory/4776-9-0x00000000083B0000-0x0000000008464000-memory.dmp

    Filesize

    720KB

  • memory/4776-3-0x00000000054E0000-0x0000000005572000-memory.dmp

    Filesize

    584KB

  • memory/4776-2-0x0000000005A90000-0x0000000006034000-memory.dmp

    Filesize

    5.6MB

  • memory/4776-7-0x0000000005A30000-0x0000000005A4A000-memory.dmp

    Filesize

    104KB

  • memory/4776-8-0x0000000005A50000-0x0000000005A60000-memory.dmp

    Filesize

    64KB

  • memory/4776-1-0x00000000009A0000-0x0000000000AB4000-memory.dmp

    Filesize

    1.1MB