Overview

overview

8

Static

static

09bc9c08f8...41.exe

windows7_x64

8

09bc9c08f8...41.exe

windows10_x64

8

Analysis

  • max time kernel
    149s
  • max time network
    204s
  • platform
    windows7_x64
  • resource
    win7v20210408
  • submitted
    28-09-2021 09:23

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General

  • Target

    09bc9c08f80f93317cd8769f85d8921787c677033a5b12a6c310fb92d83f6e41.exe

  • Size

    1.2MB

  • MD5

    a1b69800aeb7ecbc49ebb13ce4a88737

  • SHA1

    96e25aed75903a5a84be3175c6e834a44833bc5d

  • SHA256

    09bc9c08f80f93317cd8769f85d8921787c677033a5b12a6c310fb92d83f6e41

  • SHA512

    d4d5112b5f7c7ed676b2d41828b25a339a39235aaf8de51bc1cfdd35a73acf279cd3e7ac0434f93eaf20d35f9a5173ff0c49987b6d5b8e4e03131c29dedc20c5

Score
8/10
evasionpersistence

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Modifies Windows Firewall 1 TTPs
    evasion
  • Drops startup file 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Suspicious use of NtSetInformationThreadHideFromDebugger 17 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 52 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\09bc9c08f80f93317cd8769f85d8921787c677033a5b12a6c310fb92d83f6e41.exe
    "C:\Users\Admin\AppData\Local\Temp\09bc9c08f80f93317cd8769f85d8921787c677033a5b12a6c310fb92d83f6e41.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:980
    • C:\Users\Admin\Yandex.exe
      "C:\Users\Admin\Yandex.exe"
      2⤵
      • Executes dropped EXE
      • Drops startup file
      • Adds Run key to start application
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1372
      • C:\Windows\SysWOW64\netsh.exe
        netsh firewall add allowedprogram "C:\Users\Admin\Yandex.exe" "Yandex.exe" ENABLE
        3⤵
          PID:1436

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Modify Existing Service

    1
    T1031

    Registry Run Keys / Startup Folder

    1
    T1060

    Privilege Escalation

    Defense Evasion

    Modify Registry

    1
    T1112

    Credential Access

    Discovery

    System Information Discovery

    1
    T1082

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

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    Downloads

    • C:\Users\Admin\Yandex.exe
      MD5

      a1b69800aeb7ecbc49ebb13ce4a88737

      SHA1

      96e25aed75903a5a84be3175c6e834a44833bc5d

      SHA256

      09bc9c08f80f93317cd8769f85d8921787c677033a5b12a6c310fb92d83f6e41

      SHA512

      d4d5112b5f7c7ed676b2d41828b25a339a39235aaf8de51bc1cfdd35a73acf279cd3e7ac0434f93eaf20d35f9a5173ff0c49987b6d5b8e4e03131c29dedc20c5

      Download Submit
    • \??\c:\users\admin\yandex.exe
      MD5

      a1b69800aeb7ecbc49ebb13ce4a88737

      SHA1

      96e25aed75903a5a84be3175c6e834a44833bc5d

      SHA256

      09bc9c08f80f93317cd8769f85d8921787c677033a5b12a6c310fb92d83f6e41

      SHA512

      d4d5112b5f7c7ed676b2d41828b25a339a39235aaf8de51bc1cfdd35a73acf279cd3e7ac0434f93eaf20d35f9a5173ff0c49987b6d5b8e4e03131c29dedc20c5

      Download Submit
    • \Users\Admin\Yandex.exe
      MD5

      a1b69800aeb7ecbc49ebb13ce4a88737

      SHA1

      96e25aed75903a5a84be3175c6e834a44833bc5d

      SHA256

      09bc9c08f80f93317cd8769f85d8921787c677033a5b12a6c310fb92d83f6e41

      SHA512

      d4d5112b5f7c7ed676b2d41828b25a339a39235aaf8de51bc1cfdd35a73acf279cd3e7ac0434f93eaf20d35f9a5173ff0c49987b6d5b8e4e03131c29dedc20c5

      Download Submit
    • memory/980-59-0x00000000757C1000-0x00000000757C3000-memory.dmp
      Filesize

      8KB

      Download
    • memory/980-60-0x0000000000F50000-0x0000000000F52000-memory.dmp
      Filesize

      8KB

      Download
    • memory/980-61-0x0000000003470000-0x0000000003471000-memory.dmp
      Filesize

      4KB

      Download
    • memory/1372-63-0x0000000000000000-mapping.dmp
      Download
    • memory/1372-67-0x00000000003A0000-0x00000000003A2000-memory.dmp
      Filesize

      8KB

      Download
    • memory/1372-68-0x0000000002880000-0x0000000002881000-memory.dmp
      Filesize

      4KB

      Download
    • memory/1436-69-0x0000000000000000-mapping.dmp
      Download