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Analysis

  • max time kernel
    142s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    04/09/2024, 12:45

General

  • Target

    3b5e5fb317040ff6197982f73c65426ea39e48f0108a4349acfc27468cef1e86.exe

  • Size

    973KB

  • MD5

    5c476a26f9288899b8c5df769549dc3b

  • SHA1

    cb7794062569e0ca10e1588fbc454b6ba0f59f37

  • SHA256

    3b5e5fb317040ff6197982f73c65426ea39e48f0108a4349acfc27468cef1e86

  • SHA512

    56e415db49c949d1853e92f0626e95413d194e38c21fc8bc59809f76c73ef3d634ac9bde868a8328971706797a103e2955102e00945d736451e1fd6af657536c

  • SSDEEP

    24576:YCXTaMLTuPwXGHCiNN41J9hAd+nl7InbXwjrET3Xyy/vh0:YCjo+91dAd+l/jfuh0

Malware Config

Extracted

Family

agenttesla

Credentials

Extracted

Family

redline

Botnet

bigpay

C2

204.10.160.140:7001

Signatures

  • AgentTesla

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

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine payload 2 IoCs
  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • 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.

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 IoCs
  • 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).

  • System Location Discovery: System Language Discovery 1 TTPs 7 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3b5e5fb317040ff6197982f73c65426ea39e48f0108a4349acfc27468cef1e86.exe
    "C:\Users\Admin\AppData\Local\Temp\3b5e5fb317040ff6197982f73c65426ea39e48f0108a4349acfc27468cef1e86.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2756
    • 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\3b5e5fb317040ff6197982f73c65426ea39e48f0108a4349acfc27468cef1e86.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2788
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\tSYPqhw.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2508
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\tSYPqhw" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBA4.tmp"
      2⤵
      • System Location Discovery: System Language Discovery
      • Scheduled Task/Job: Scheduled Task
      PID:2604
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2180
      • C:\Users\Admin\AppData\Local\Temp\newfile.exe
        "C:\Users\Admin\AppData\Local\Temp\newfile.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2148
      • C:\Users\Admin\AppData\Local\Temp\build.exe
        "C:\Users\Admin\AppData\Local\Temp\build.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2000

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\build.exe

    Filesize

    300KB

    MD5

    f438d85cb04ea1b9fa4e32cfd4b28d0f

    SHA1

    3a0dd7cd2036b41fb5982e98c798802f8af619ac

    SHA256

    fada9b55d3b3995f6bddb357370843fced984832063945eac08b6eb182fced52

    SHA512

    e21c8b975c3a5de7500ffd4dc97e8a3062ce4314bf749df5ab3c9f09bbc9f94324afca9149ee11769efd5e76971b0e67baf39c3961f3a1dfec8596c20fa7069b

  • C:\Users\Admin\AppData\Local\Temp\tmpBA4.tmp

    Filesize

    1KB

    MD5

    e2a2e655e879b01ef1e6743ef7648f6c

    SHA1

    9f2deae4b5e4bcf7c4345d05fb67ec1c31a5b107

    SHA256

    c31fb23ccbbd7c60698817c70a69580dfad02e9e1e8b2c315e5d564c346999f7

    SHA512

    4c81ca8e6418a9ff877dda8504a1f70e493ec97c2ee646fedc5ce67f7df6ee2a4716ac19d37aac3aeb360389d348ca78820e31bec9bf34b75320da0e85be67ae

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\NI02Z4WOA77XYIR6T7TB.temp

    Filesize

    7KB

    MD5

    89e587bad6508134628b87c53ca8e3cf

    SHA1

    218c206e339d132e96360e5405321dc980047302

    SHA256

    70abc32e610f575e2d277b8e8bc7b43471481ab7d541bd652621382c495caa9c

    SHA512

    3f71b93f4c9102deb9c4f0d5c4636dece44d76d273889b2b83cabfc5ccfd7c512899186b912c4506c21b07878d7e5207739116af5c38f9246bb8fc98e4c77b1f

  • \Users\Admin\AppData\Local\Temp\newfile.exe

    Filesize

    234KB

    MD5

    8234c3ec3aba620ca36e9d5629e3db74

    SHA1

    09d5b639a270fb4cbf45b2b454db96cc1035a768

    SHA256

    acff54dc41a4f979a5054bc43649e097472904293fa9c4d23048b30a57bc3149

    SHA512

    651c26e080b704189266ecb1daca88d1a3f4e67075f362055bd57b1bea52dbb181c299129b503b8674e9c89af5c1455a03abcf7ad417ed8cbbc7c0f7311f6c16

  • memory/2000-48-0x00000000003E0000-0x0000000000432000-memory.dmp

    Filesize

    328KB

  • memory/2148-41-0x00000000000D0000-0x0000000000110000-memory.dmp

    Filesize

    256KB

  • memory/2180-22-0x0000000000400000-0x000000000048E000-memory.dmp

    Filesize

    568KB

  • memory/2180-24-0x0000000000400000-0x000000000048E000-memory.dmp

    Filesize

    568KB

  • memory/2180-29-0x0000000000400000-0x000000000048E000-memory.dmp

    Filesize

    568KB

  • memory/2180-20-0x0000000000400000-0x000000000048E000-memory.dmp

    Filesize

    568KB

  • memory/2180-28-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2180-26-0x0000000000400000-0x000000000048E000-memory.dmp

    Filesize

    568KB

  • memory/2180-31-0x0000000000400000-0x000000000048E000-memory.dmp

    Filesize

    568KB

  • memory/2180-30-0x0000000000400000-0x000000000048E000-memory.dmp

    Filesize

    568KB

  • memory/2756-0-0x0000000074CBE000-0x0000000074CBF000-memory.dmp

    Filesize

    4KB

  • memory/2756-7-0x0000000005A30000-0x0000000005B00000-memory.dmp

    Filesize

    832KB

  • memory/2756-32-0x0000000074CB0000-0x000000007539E000-memory.dmp

    Filesize

    6.9MB

  • memory/2756-5-0x0000000074CB0000-0x000000007539E000-memory.dmp

    Filesize

    6.9MB

  • memory/2756-6-0x0000000000870000-0x000000000087E000-memory.dmp

    Filesize

    56KB

  • memory/2756-4-0x0000000074CBE000-0x0000000074CBF000-memory.dmp

    Filesize

    4KB

  • memory/2756-3-0x00000000006A0000-0x00000000006B0000-memory.dmp

    Filesize

    64KB

  • memory/2756-2-0x0000000074CB0000-0x000000007539E000-memory.dmp

    Filesize

    6.9MB

  • memory/2756-1-0x0000000000160000-0x0000000000254000-memory.dmp

    Filesize

    976KB