Analysis

  • max time kernel
    30s
  • max time network
    33s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/05/2023, 18:15

General

  • Target

    Activation Manager Unlocker b5.exe

  • Size

    4.0MB

  • MD5

    b24ac28f1879875ed24ca42bf42d8d63

  • SHA1

    d3cac1df36d2727f1e72cbcef042afa00f804db4

  • SHA256

    4421bd172168fe751aa60507317a35fccd99a67e01d669300cfd92e36acd9294

  • SHA512

    18fec41d10a9a024497dbdc4db4e05206417a5683c231aab2a4a320f02747f034f955c4d82e33da7503ba4624a8bc2e90e98adc333a8c2a10317ac45135bdddb

  • SSDEEP

    98304:ZkL1MVKkK2EoZ/iDaHlF6gDZOTZBPxF5MqR50:61MVlyD6UgD+jxzMqR50

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 6 IoCs
  • Loads dropped DLL 1 IoCs
  • Drops file in Program Files directory 6 IoCs
  • Program crash 1 IoCs
  • Modifies system certificate store 2 TTPs 15 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Activation Manager Unlocker b5.exe
    "C:\Users\Admin\AppData\Local\Temp\Activation Manager Unlocker b5.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2628
    • C:\Users\Admin\AppData\Local\Temp\is-E9GGL.tmp\Activation Manager Unlocker b5.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-E9GGL.tmp\Activation Manager Unlocker b5.tmp" /SL5="$901BE,3209045,1184768,C:\Users\Admin\AppData\Local\Temp\Activation Manager Unlocker b5.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4464
      • C:\Users\Admin\AppData\Local\Temp\is-H1QHQ.tmp\certmgr.exe
        "C:\Users\Admin\AppData\Local\Temp\is-H1QHQ.tmp\certmgr.exe" /del /all /s PrivateCertStore
        3⤵
        • Executes dropped EXE
        • Modifies system certificate store
        PID:4636
      • C:\Users\Admin\AppData\Local\Temp\is-H1QHQ.tmp\makecert.exe
        "C:\Users\Admin\AppData\Local\Temp\is-H1QHQ.tmp\makecert.exe" -r -a SHA256 -eku "1.3.6.1.5.5.7.3.3,1.3.6.1.4.1.311.10.3.13" -n CN="Steinberg Media Technologies GmbH" -pe -ss PrivateCertStore SMTG.cer
        3⤵
        • Executes dropped EXE
        • Modifies system certificate store
        PID:636
      • C:\Users\Admin\AppData\Local\Temp\is-H1QHQ.tmp\certmgr.exe
        "C:\Users\Admin\AppData\Local\Temp\is-H1QHQ.tmp\certmgr.exe" -add C:\Users\Admin\AppData\Local\Temp\is-H1QHQ.tmp\SMTG.cer -s -r localMachine ROOT
        3⤵
        • Executes dropped EXE
        • Modifies system certificate store
        PID:1960
      • C:\Users\Admin\AppData\Local\Temp\is-H1QHQ.tmp\signtool.exe
        "C:\Users\Admin\AppData\Local\Temp\is-H1QHQ.tmp\signtool.exe" sign /fd SHA256 /v /s PrivateCertStore /a /n "Steinberg Media Technologies GmbH" "C:\Program Files\Common Files\Steinberg\Activation Manager\license-engine-access.dll"
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • Modifies system certificate store
        PID:216
      • C:\Users\Admin\AppData\Local\Temp\is-H1QHQ.tmp\signtool.exe
        "C:\Users\Admin\AppData\Local\Temp\is-H1QHQ.tmp\signtool.exe" sign /fd SHA256 /v /s PrivateCertStore /a /n "Steinberg Media Technologies GmbH" "C:\Program Files\Common Files\Steinberg\Activation Manager\SteinbergLicenseEngine.exe"
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        PID:4160
  • C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -pss -s 464 -p 1796 -ip 1796
    1⤵
      PID:4224
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 1796 -s 1744
      1⤵
      • Program crash
      PID:1180

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • C:\Program Files\Common Files\Steinberg\Activation Manager\SteinbergLicenseEngine.exe

      Filesize

      4.8MB

      MD5

      7356d20ed07502009b678f2db3171d9f

      SHA1

      e1682322ae0e7d9821c17682fd589dd8f8b42472

      SHA256

      501eb532d1db3cbff7b94de2fa3345e77238cbcfae5961f05823de89cfe3fbe0

      SHA512

      f30eacda2d58b84c482f091907d9b6c89c6232df30c54511e1c143688d3d618b7e381f56bf65a62cc56a3ed0b3db721caa06165a66feed886eaa1fa70b64ae67

    • C:\Program Files\Common Files\Steinberg\Activation Manager\license-engine-access.dll

      Filesize

      2.9MB

      MD5

      269bb490c68f1ef5d68f46e368ae60f2

      SHA1

      324d858be26ce6256d14b462489db3dce999bf33

      SHA256

      31936155c258788ed7d6b1b6377705ad95c52660f95af342da5b02df3b33c3ac

      SHA512

      f2bfb9f7c336ab99f98246b6688bb6b42678397a1b547234f1c375872125f8c9c2cc7ea63bbe971bfc77ef7856fe5f6005b153702d0073036a33f9a9a78e5385

    • C:\Users\Admin\AppData\Local\Temp\is-E9GGL.tmp\Activation Manager Unlocker b5.tmp

      Filesize

      3.4MB

      MD5

      44d740610fe8c43fa81a8d9efe2ccb0b

      SHA1

      6cece14b20a1221ad157f9079d797a895f8d38c2

      SHA256

      340dc6d5bee71ca4842699441889b4296be80bad4bbd34f62e011c5540e8330f

      SHA512

      aaf49b2956f0e07b08b8f6fd0ee502d98de556be3862db2ad1422dba2e77ed5090a19271b82bde91adae206ccf260428701682f821c57abde43e10fa1994df7e

    • C:\Users\Admin\AppData\Local\Temp\is-H1QHQ.tmp\SMTG.cer

      Filesize

      874B

      MD5

      7a76e198af777485cf7db168cfa6e184

      SHA1

      dfb626663a2bc4514f20bdbc4f2f75ddce96c6a3

      SHA256

      f8e4a66e6f26311829f529e23e891e97e88784206f78e3f7257d062e2db4778f

      SHA512

      e895459bc208ccac87e0fd27826b2c70bca92ddce2bcbdb56e20f8a2464e8de06d72b0bbb56c87fd0f9b559441ca983ebb2a42485f22e88a0c0c784fe8b90eed

    • C:\Users\Admin\AppData\Local\Temp\is-H1QHQ.tmp\_isetup\_iscrypt.dll

      Filesize

      2KB

      MD5

      a69559718ab506675e907fe49deb71e9

      SHA1

      bc8f404ffdb1960b50c12ff9413c893b56f2e36f

      SHA256

      2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

      SHA512

      e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

    • C:\Users\Admin\AppData\Local\Temp\is-H1QHQ.tmp\certmgr.exe

      Filesize

      80KB

      MD5

      8ac6ffb0abc20398bbd8f3c7c0519609

      SHA1

      ac7e9abf0ac98c30346f3cb2a3c35cebd510a4c8

      SHA256

      68040976ea73a1c4a14e40fedbcb886edb7ae97b006b9540c74c0f0d313dc78b

      SHA512

      780773a4cc900fbe38a1dd220d105c8c25ddc833f2cc7e5df3a88b32744988e45325deb46c95decba137b2457029f33432b4667c684524798efa4a02c515adb7

    • C:\Users\Admin\AppData\Local\Temp\is-H1QHQ.tmp\certmgr.exe

      Filesize

      80KB

      MD5

      8ac6ffb0abc20398bbd8f3c7c0519609

      SHA1

      ac7e9abf0ac98c30346f3cb2a3c35cebd510a4c8

      SHA256

      68040976ea73a1c4a14e40fedbcb886edb7ae97b006b9540c74c0f0d313dc78b

      SHA512

      780773a4cc900fbe38a1dd220d105c8c25ddc833f2cc7e5df3a88b32744988e45325deb46c95decba137b2457029f33432b4667c684524798efa4a02c515adb7

    • C:\Users\Admin\AppData\Local\Temp\is-H1QHQ.tmp\makecert.exe

      Filesize

      61KB

      MD5

      934b19d32e1dc15d4cc2b8dee12de758

      SHA1

      1dec6a49062d05764ae1864e04621a2af143bbd8

      SHA256

      d184933b6917faf559bd250c7f2d47d1bc9bba98442aa0f4b48d4371357c81dd

      SHA512

      89e8f6bab807873c8e20fbe3fd825642e9ce974af446226847f13da1e7e28255c9f106cd8d8eb0fb5127cf08ecd36977110306e67f3017adfbeb93706061f690

    • C:\Users\Admin\AppData\Local\Temp\is-H1QHQ.tmp\signtool.exe

      Filesize

      448KB

      MD5

      8a90e91a512dbf56d0d8d87b9a673e53

      SHA1

      e7126fe4cdd96f12e5ca9ca3246a1b905c941a44

      SHA256

      a36f5e81ce208137acc8fa9c00547c020fa10f044583002ccd23799b7f64078e

      SHA512

      6df1da08a81c21710cfb483b48209dfbb3bb36ef146e366b384c3be1c7034d313a116a23b87b1f3c9fb0f24158472dc37119fe5139434bfea6a34dc7f03bfb0e

    • C:\Users\Admin\AppData\Local\Temp\is-H1QHQ.tmp\signtool.exe

      Filesize

      448KB

      MD5

      8a90e91a512dbf56d0d8d87b9a673e53

      SHA1

      e7126fe4cdd96f12e5ca9ca3246a1b905c941a44

      SHA256

      a36f5e81ce208137acc8fa9c00547c020fa10f044583002ccd23799b7f64078e

      SHA512

      6df1da08a81c21710cfb483b48209dfbb3bb36ef146e366b384c3be1c7034d313a116a23b87b1f3c9fb0f24158472dc37119fe5139434bfea6a34dc7f03bfb0e

    • memory/2628-133-0x0000000000400000-0x000000000052E000-memory.dmp

      Filesize

      1.2MB

    • memory/2628-143-0x0000000000400000-0x000000000052E000-memory.dmp

      Filesize

      1.2MB

    • memory/2628-184-0x0000000000400000-0x000000000052E000-memory.dmp

      Filesize

      1.2MB

    • memory/4464-145-0x0000000002840000-0x0000000002841000-memory.dmp

      Filesize

      4KB

    • memory/4464-144-0x0000000000400000-0x000000000076A000-memory.dmp

      Filesize

      3.4MB

    • memory/4464-138-0x0000000002840000-0x0000000002841000-memory.dmp

      Filesize

      4KB

    • memory/4464-175-0x0000000000400000-0x000000000076A000-memory.dmp

      Filesize

      3.4MB

    • memory/4464-182-0x0000000000400000-0x000000000076A000-memory.dmp

      Filesize

      3.4MB