Resubmissions

22-11-2022 13:27

221122-qp9axshe3z 8

22-11-2022 13:20

221122-qlc4badh28 8

Analysis

  • max time kernel
    144s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    22-11-2022 13:20

General

  • Target

    Setup_Topfpflanzenbau.exe

  • Size

    3.1MB

  • MD5

    e9a062d4f24c2c003ef66bbf1cb4b748

  • SHA1

    030bccea94af099c807b81adc8db7596562c321e

  • SHA256

    44ddc246d89d715c0a28d404f2907cf3cd655265f02fd9e29bdcd9d6c438791b

  • SHA512

    71a6dde852314e2fdae1799b6ed253e4f7a43b25c9c4af591013a23adf0bb4908f23f9227e0fd152d2c3217f132cd0d5786c4418ea8af5de9f51c8e9a7c47a8e

  • SSDEEP

    98304:foA1JJs+NmfqbKLOEyJzgijYU/vuQ2H+a7:g2u+NBbbJzjYU/jM+6

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Office macro that triggers on suspicious action 1 IoCs

    Office document macro which triggers in special circumstances - often malicious.

  • Suspicious Office macro 1 IoCs

    Office document equipped with macros.

  • Loads dropped DLL 4 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates physical storage devices 1 TTPs

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

  • Office loads VBA resources, possible macro or embedded object present
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SendNotifyMessage 1 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Setup_Topfpflanzenbau.exe
    "C:\Users\Admin\AppData\Local\Temp\Setup_Topfpflanzenbau.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:832
    • C:\Users\Admin\AppData\Local\Temp\is-IHTR0.tmp\Setup_Topfpflanzenbau.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-IHTR0.tmp\Setup_Topfpflanzenbau.tmp" /SL5="$60124,3031278,67072,C:\Users\Admin\AppData\Local\Temp\Setup_Topfpflanzenbau.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:1200
      • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
        "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde
        3⤵
        • Enumerates system info in registry
        • Modifies Internet Explorer settings
        • Modifies registry class
        • Suspicious behavior: AddClipboardFormatListener
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        PID:2008

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\is-IHTR0.tmp\Setup_Topfpflanzenbau.tmp

    Filesize

    701KB

    MD5

    49f873e8f3e7625a819905c0aeaa159b

    SHA1

    7bbda62db5e7c881f1198a4a27812f1d95040610

    SHA256

    fcf3ae70e68aebe43d11264071f9ec1ad0222cb99aea777abe33942a227b23f5

    SHA512

    194672abebef9fa21edcf4df20110b8027ce01b50775db47d824ea81e28d90cf3bad672df80ea1001c35c189e65c309e9dbbdfc6ce87579fb1d3e810b7911988

  • C:\Users\Admin\AppData\Local\Temp\is-IHTR0.tmp\Setup_Topfpflanzenbau.tmp

    Filesize

    701KB

    MD5

    49f873e8f3e7625a819905c0aeaa159b

    SHA1

    7bbda62db5e7c881f1198a4a27812f1d95040610

    SHA256

    fcf3ae70e68aebe43d11264071f9ec1ad0222cb99aea777abe33942a227b23f5

    SHA512

    194672abebef9fa21edcf4df20110b8027ce01b50775db47d824ea81e28d90cf3bad672df80ea1001c35c189e65c309e9dbbdfc6ce87579fb1d3e810b7911988

  • C:\Users\Public\Documents\KTBL_Topfpflanzenbau\Start_Topfpflanzen.XLS

    Filesize

    1.3MB

    MD5

    1fd54587dcd04357df5bf88fbd52b070

    SHA1

    017fc4442131ef7a7e4d9bcb69e8f3f452869bb2

    SHA256

    13d2d0e53d400994bd372aaa69e71b8a9d6772c84d35e5b80ea25b3076fb8fb3

    SHA512

    ce971c3dbf34bb43fd75bc6710186eee43931ac3fbe021248d90544e1c46f874aac4cf00ae3cb290ee1184cc1b756e22c6d949926dd013f1bb60ebdc804f7c8d

  • \Users\Admin\AppData\Local\Temp\is-2LVN3.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • \Users\Admin\AppData\Local\Temp\is-2LVN3.tmp\_isetup\_shfoldr.dll

    Filesize

    22KB

    MD5

    92dc6ef532fbb4a5c3201469a5b5eb63

    SHA1

    3e89ff837147c16b4e41c30d6c796374e0b8e62c

    SHA256

    9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

    SHA512

    9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

  • \Users\Admin\AppData\Local\Temp\is-IHTR0.tmp\Setup_Topfpflanzenbau.tmp

    Filesize

    701KB

    MD5

    49f873e8f3e7625a819905c0aeaa159b

    SHA1

    7bbda62db5e7c881f1198a4a27812f1d95040610

    SHA256

    fcf3ae70e68aebe43d11264071f9ec1ad0222cb99aea777abe33942a227b23f5

    SHA512

    194672abebef9fa21edcf4df20110b8027ce01b50775db47d824ea81e28d90cf3bad672df80ea1001c35c189e65c309e9dbbdfc6ce87579fb1d3e810b7911988

  • \Users\Public\Documents\KTBL_Topfpflanzenbau\unins000.exe

    Filesize

    715KB

    MD5

    1f3ba4fbe02edd56d8520cbf83bf6fc0

    SHA1

    560dd91a1db4c53976b2c076374d359594d9179f

    SHA256

    9e2207023b584450d3bbb53dc2c4e8b689ddd1ea585afd1513a2542cc1e3ac13

    SHA512

    efc2675feb7077c2861f76f97a5a4b21f46945a14dc3177ddffb4574849f55e4aa7f06ac1c7c4f44dc8650440aac1c4b92250dd0afaef8ede6ceb8fa9a6c33d7

  • memory/832-55-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/832-75-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/832-63-0x0000000000400000-0x0000000000417000-memory.dmp

    Filesize

    92KB

  • memory/832-54-0x0000000075091000-0x0000000075093000-memory.dmp

    Filesize

    8KB

  • memory/1200-64-0x0000000074311000-0x0000000074313000-memory.dmp

    Filesize

    8KB

  • memory/1200-58-0x0000000000000000-mapping.dmp

  • memory/2008-68-0x000000002FCD1000-0x000000002FCD4000-memory.dmp

    Filesize

    12KB

  • memory/2008-69-0x0000000070F41000-0x0000000070F43000-memory.dmp

    Filesize

    8KB

  • memory/2008-70-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2008-71-0x0000000071F2D000-0x0000000071F38000-memory.dmp

    Filesize

    44KB

  • memory/2008-67-0x0000000000000000-mapping.dmp

  • memory/2008-74-0x0000000071F2D000-0x0000000071F38000-memory.dmp

    Filesize

    44KB