Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24-09-2024 09:04

General

  • Target

    8bb52d0be263f9a7841a7a7537f0ac85fe5fe4b5bcc87d94663dce56ebad90dd.exe

  • Size

    766KB

  • MD5

    08de4a78faebb0c78f0b5e7eb8ff7ba9

  • SHA1

    0fc42cffd7cad9b33c8deb3f5bb690486ea3794b

  • SHA256

    8bb52d0be263f9a7841a7a7537f0ac85fe5fe4b5bcc87d94663dce56ebad90dd

  • SHA512

    94af88f97cc70132714fa1c7b805e66105d1567e5bf60e318e1dceab65a6546371e0596bfcde270eab5517df7d06807c87cd8366082bbac2d595b2b938390d41

  • SSDEEP

    12288:LBbDijRwxhRq9eCv+OJsVhoh/oROEZLvwA8B89/9JSmfsDhCr3z4fn2:LBbDc0C9er2sVTU8LIB8XJSW24r30

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 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Looks up external IP address via web service 2 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).

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8bb52d0be263f9a7841a7a7537f0ac85fe5fe4b5bcc87d94663dce56ebad90dd.exe
    "C:\Users\Admin\AppData\Local\Temp\8bb52d0be263f9a7841a7a7537f0ac85fe5fe4b5bcc87d94663dce56ebad90dd.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2576
    • 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\8bb52d0be263f9a7841a7a7537f0ac85fe5fe4b5bcc87d94663dce56ebad90dd.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1604
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\fdcTmYOb.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1804
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fdcTmYOb" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBECC.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:1360
    • C:\Users\Admin\AppData\Local\Temp\8bb52d0be263f9a7841a7a7537f0ac85fe5fe4b5bcc87d94663dce56ebad90dd.exe
      "C:\Users\Admin\AppData\Local\Temp\8bb52d0be263f9a7841a7a7537f0ac85fe5fe4b5bcc87d94663dce56ebad90dd.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2304

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

    3568c43fec99b00174478d1229f91f81

    SHA1

    6633bb145b661f03634156860d846e5d8af4a805

    SHA256

    01c3bc1da80a534a80faf931a506b037972395d5ea5dedac5245e14a1d648673

    SHA512

    3dadc763f81440f5ea180941bcc96a4861c7fb792e2f3865500537d5bfb36d225a76bc30dbeb563b9d13e960d95675b4a6c404b1bf8366d63e41894ef8070bad

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4jtyjo42.bbt.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

    Filesize

    1KB

    MD5

    fb1aea0e854c8c94cb71d15dbb9d4c45

    SHA1

    a01c7b02559b36a37a23f53853afdd1be56a42d4

    SHA256

    d1a45be350fb38e2c0dc38285fe51bbb3a2a7912315ff082896e9ac6890d7570

    SHA512

    549ac454ca5983641c9683337c5a6de810cebb8aaad6898a92ccbe01ef5c82c8e202e95bafca9ae2523802f99123bcdfd660105e29f79d0581d9eb5c8f61664c

  • memory/1604-51-0x00000000063B0000-0x00000000063FC000-memory.dmp

    Filesize

    304KB

  • memory/1604-18-0x0000000005030000-0x0000000005658000-memory.dmp

    Filesize

    6.2MB

  • memory/1604-80-0x00000000073B0000-0x00000000073BE000-memory.dmp

    Filesize

    56KB

  • memory/1604-79-0x0000000007380000-0x0000000007391000-memory.dmp

    Filesize

    68KB

  • memory/1604-65-0x0000000070130000-0x000000007017C000-memory.dmp

    Filesize

    304KB

  • memory/1604-49-0x0000000005E60000-0x0000000005E7E000-memory.dmp

    Filesize

    120KB

  • memory/1604-27-0x0000000005770000-0x00000000057D6000-memory.dmp

    Filesize

    408KB

  • memory/1604-21-0x00000000056D0000-0x00000000056F2000-memory.dmp

    Filesize

    136KB

  • memory/1604-16-0x0000000004880000-0x00000000048B6000-memory.dmp

    Filesize

    216KB

  • memory/1604-81-0x00000000073C0000-0x00000000073D4000-memory.dmp

    Filesize

    80KB

  • memory/1604-17-0x0000000075240000-0x00000000759F0000-memory.dmp

    Filesize

    7.7MB

  • memory/1604-19-0x0000000075240000-0x00000000759F0000-memory.dmp

    Filesize

    7.7MB

  • memory/1604-20-0x0000000075240000-0x00000000759F0000-memory.dmp

    Filesize

    7.7MB

  • memory/1604-82-0x00000000074C0000-0x00000000074DA000-memory.dmp

    Filesize

    104KB

  • memory/1604-90-0x0000000075240000-0x00000000759F0000-memory.dmp

    Filesize

    7.7MB

  • memory/1604-28-0x0000000005850000-0x00000000058B6000-memory.dmp

    Filesize

    408KB

  • memory/1604-35-0x0000000005A60000-0x0000000005DB4000-memory.dmp

    Filesize

    3.3MB

  • memory/1804-47-0x0000000075240000-0x00000000759F0000-memory.dmp

    Filesize

    7.7MB

  • memory/1804-78-0x0000000007B10000-0x0000000007BA6000-memory.dmp

    Filesize

    600KB

  • memory/1804-36-0x0000000075240000-0x00000000759F0000-memory.dmp

    Filesize

    7.7MB

  • memory/1804-66-0x0000000007ED0000-0x000000000854A000-memory.dmp

    Filesize

    6.5MB

  • memory/1804-29-0x0000000075240000-0x00000000759F0000-memory.dmp

    Filesize

    7.7MB

  • memory/1804-89-0x0000000075240000-0x00000000759F0000-memory.dmp

    Filesize

    7.7MB

  • memory/1804-83-0x0000000007BB0000-0x0000000007BB8000-memory.dmp

    Filesize

    32KB

  • memory/1804-68-0x0000000007890000-0x00000000078AA000-memory.dmp

    Filesize

    104KB

  • memory/1804-77-0x0000000007900000-0x000000000790A000-memory.dmp

    Filesize

    40KB

  • memory/1804-53-0x0000000070130000-0x000000007017C000-memory.dmp

    Filesize

    304KB

  • memory/1804-63-0x0000000007740000-0x000000000775E000-memory.dmp

    Filesize

    120KB

  • memory/1804-64-0x0000000007760000-0x0000000007803000-memory.dmp

    Filesize

    652KB

  • memory/1804-52-0x0000000007700000-0x0000000007732000-memory.dmp

    Filesize

    200KB

  • memory/2304-46-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2304-91-0x0000000006EB0000-0x0000000006F00000-memory.dmp

    Filesize

    320KB

  • memory/2576-8-0x000000007524E000-0x000000007524F000-memory.dmp

    Filesize

    4KB

  • memory/2576-9-0x0000000075240000-0x00000000759F0000-memory.dmp

    Filesize

    7.7MB

  • memory/2576-10-0x0000000007620000-0x00000000076A2000-memory.dmp

    Filesize

    520KB

  • memory/2576-7-0x0000000005E10000-0x0000000005E20000-memory.dmp

    Filesize

    64KB

  • memory/2576-6-0x0000000005F50000-0x0000000005FF0000-memory.dmp

    Filesize

    640KB

  • memory/2576-5-0x0000000005BE0000-0x0000000005BEA000-memory.dmp

    Filesize

    40KB

  • memory/2576-4-0x0000000075240000-0x00000000759F0000-memory.dmp

    Filesize

    7.7MB

  • memory/2576-50-0x0000000075240000-0x00000000759F0000-memory.dmp

    Filesize

    7.7MB

  • memory/2576-3-0x0000000005A50000-0x0000000005AE2000-memory.dmp

    Filesize

    584KB

  • memory/2576-2-0x0000000006000000-0x00000000065A4000-memory.dmp

    Filesize

    5.6MB

  • memory/2576-11-0x0000000009CB0000-0x0000000009D4C000-memory.dmp

    Filesize

    624KB

  • memory/2576-1-0x0000000000F80000-0x0000000001046000-memory.dmp

    Filesize

    792KB

  • memory/2576-0-0x000000007524E000-0x000000007524F000-memory.dmp

    Filesize

    4KB