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Analysis

  • max time kernel
    1810s
  • max time network
    1163s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10/03/2024, 01:36

General

  • Target

    avast_vpn_online_setup.exe

  • Size

    1.4MB

  • MD5

    fe13cf35280e8af0a10a34c9ad680e64

  • SHA1

    8d5d1afddb660faf47c5f1a38a3da3321157d9bf

  • SHA256

    40dd915ee43a59273bd3aafe509c34aa43ddb57886810bfc2058ccf096e172a3

  • SHA512

    27449f6ca2d667f305b8fdefa287e2bab3221e3dbe8915f7040500faff6d14ab049d1a0a940a77ead408555ef87a5b03ba655e2e5f765b49a4c8e3981365d35d

  • SSDEEP

    24576:QqM0QHRzf+BooooEJ8GYgqGneBPuzBCxxAih0lhSMXlhebzCkAYt:k0Oz2BooooEJsgmPmBCxG/kb3AYt

Score
6/10

Malware Config

Signatures

  • Writes to the Master Boot Record (MBR) 1 TTPs 3 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Checks processor information in registry 2 TTPs 7 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Modifies registry class 7 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 51 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\avast_vpn_online_setup.exe
    "C:\Users\Admin\AppData\Local\Temp\avast_vpn_online_setup.exe"
    1⤵
    • Writes to the Master Boot Record (MBR)
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of WriteProcessMemory
    PID:4508
    • C:\Windows\Temp\asw-ce675fd7-33fc-450a-b6fc-cb8a41110e69\common\icarus.exe
      C:\Windows\Temp\asw-ce675fd7-33fc-450a-b6fc-cb8a41110e69\common\icarus.exe /icarus-info-path:C:\Windows\Temp\asw-ce675fd7-33fc-450a-b6fc-cb8a41110e69\icarus-info.xml /install /sssid:4508
      2⤵
      • Writes to the Master Boot Record (MBR)
      • Executes dropped EXE
      • Checks processor information in registry
      • Modifies registry class
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2840
      • C:\Windows\Temp\asw-ce675fd7-33fc-450a-b6fc-cb8a41110e69\common\icarus_ui.exe
        C:\Windows\Temp\asw-ce675fd7-33fc-450a-b6fc-cb8a41110e69\common\icarus_ui.exe /sssid:4508 /er_master:master_ep_a459cb63-e324-4414-aacc-306b21d40161 /er_ui:ui_ep_b9d5bc05-7519-4891-b993-46a169ac5f49
        3⤵
        • Executes dropped EXE
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        PID:4376
      • C:\Windows\Temp\asw-ce675fd7-33fc-450a-b6fc-cb8a41110e69\avast-vpn\icarus.exe
        C:\Windows\Temp\asw-ce675fd7-33fc-450a-b6fc-cb8a41110e69\avast-vpn\icarus.exe /sssid:4508 /er_master:master_ep_a459cb63-e324-4414-aacc-306b21d40161 /er_ui:ui_ep_b9d5bc05-7519-4891-b993-46a169ac5f49 /er_slave:avast-vpn_slave_ep_a8adfc40-aa79-4863-9eeb-918113f61bf8 /slave:avast-vpn
        3⤵
        • Writes to the Master Boot Record (MBR)
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks processor information in registry
        • Modifies registry class
        • Suspicious use of AdjustPrivilegeToken
        PID:3876

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\Avast Software\Icarus\Logs\icarus.log

    Filesize

    43KB

    MD5

    74159ae8c028495fa50af30be3eebc79

    SHA1

    8bf9feca5d1ccea7f42669aea57db91503f99e55

    SHA256

    56adf2612429cb59dd22abb2ecb2d2d70e98ddd7fe1ddae113b518bbc322aaa7

    SHA512

    4a74dbd0679aff2962d3f66ab7a2dca598f9ca3925fc287725a8885f5060c909121b623be95f35c50771ad27c6f5692ddd535c05430753b77a223d62f3851e6a

  • C:\ProgramData\Avast Software\Icarus\Logs\sfx.log

    Filesize

    10KB

    MD5

    2144df9cbb08ffd8c322198c88f14deb

    SHA1

    20c79184d0baa4fd2fa71b506183ded3724ad4a9

    SHA256

    34b10c2997ee22d023e1f5e55083f5265b2180fffdee1446a50f513477655a1a

    SHA512

    b82cf2fd5875da0cbcff07bc0f98474288d4b753d7944ec250f3d3d693cfeda949756c5dc2309b549b36f93ce9c946105210aa4dffe853ba8a04f295782692d7

  • C:\ProgramData\Avast Software\Icarus\Logs\sui.log

    Filesize

    13KB

    MD5

    de8e52de06c70236c3f313d8b93a354c

    SHA1

    0daff44983ded0d62c444ed827a0771e21e73d96

    SHA256

    f3fda1def16750297c3eb70341c1f7416d35fc459784fc212a3bbf7c1d21b31d

    SHA512

    6b4d3b2b57dd41787907770876dca35b25a3c95c89c667f5e3a8b73dffee06e9c735e7f96ef06cb63a972d26e27bfb56e4ec62716f7f5f194a354f7a43ee40c6

  • C:\ProgramData\Avast Software\Icarus\settings\proxy.ini

    Filesize

    214B

    MD5

    d6de6577f75a4499fe64be2006979ae5

    SHA1

    0c83a2008fa28a97eb4b01d98aeab90a2e4c8e69

    SHA256

    87d882d37f63429088955a59b126f0d44fa728ce60142478004381a3604c9ea9

    SHA512

    cb4b42c07aa2da7857106c92bc6860a29d8a92f00e34f0df54f68c17945982bc01475c83b1a1079543404bb49342fc7cdc41d2ac32d71332439ceb27b5ad1c0c

  • C:\Users\Admin\AppData\Local\Temp\D566D7D7-DCD6-471C-8109-BE0AD33199E3

    Filesize

    64B

    MD5

    22417b5d5eb168147f2c237d658a7163

    SHA1

    6ae67daf07c0a187f397923ecba497e5ab01ed58

    SHA256

    f1945b77f21bf5b8174bc94d0d69d4446baffd6808185554f8ae541e4254ecb1

    SHA512

    392b79a63b451495cc81877c288c0068d6c159bf0d7ce9ac0cc290128e57a5a1ebe0569dcbab85433448b3c1928be03cf01300ec7ae99573cfc4ef8c4c9b3cb8

  • C:\Users\Admin\AppData\Local\Temp\F07D8C6A-04B6-4025-869C-70A788D7B5C0

    Filesize

    72B

    MD5

    a2906feb355cd693d5a2f87fea2d7bd0

    SHA1

    8d98de684a919fc81049ae5dcaea9ea1fe2830bb

    SHA256

    fdd3d2379e8892628316108524a57e5dfd0daa378babb061858c57058f129749

    SHA512

    3fc619540c35d9819cd504bb73312502c904b2e5718e5aa325faa6157df1ed9cc465c5b2d9aa3b954a0657d9e12d8c8e68f219f2c71273843417d1537a1729b9

  • C:\Windows\Temp\asw-ce675fd7-33fc-450a-b6fc-cb8a41110e69\avast-vpn\bug_report.exe

    Filesize

    1.2MB

    MD5

    8666cbb5d1d3272d553d7ac37c9e3c7e

    SHA1

    7cff559c3110d672f542d1ec2d3f74454496178e

    SHA256

    ba17e8624058f9c9e0b2d19fd214077df62e200db8dda996d5dfbf1871a4091f

    SHA512

    e71232ca0aedb0690406cd8a3d7ed09c7407594d59c8a049619de6d6b38c7c18ffd625e3f1275742f90589879bd7a66689d81c49aada65ddf3823201c3bdb970

  • C:\Windows\Temp\asw-ce675fd7-33fc-450a-b6fc-cb8a41110e69\avast-vpn\config.def

    Filesize

    438B

    MD5

    98a7279694d8416c0439ae4dc7d817ed

    SHA1

    cb872492c840e22f7b9064d34ca073b3d8baf878

    SHA256

    04ffdcb7378e9cd2cfb7d8869ba39e6c4d68442b4afb1cf24fb631c11108961e

    SHA512

    09ee889725aec0e2d2881a02e740298eb5ebc7bd9b08efa4b65af8cf105ecef1acb4a9ba247b62ee35c17e8fefdb2ede575bd63cb8c6f593e9d9b8d285ac4b1b

  • C:\Windows\Temp\asw-ce675fd7-33fc-450a-b6fc-cb8a41110e69\avast-vpn\dump_process.exe

    Filesize

    1.1MB

    MD5

    6526cc2f42187b4b6c34d1fbdc3da15f

    SHA1

    7c53fb157e0ef7a87d7110bc2f7c6a7f83803e05

    SHA256

    fa406fee2ed0889642ed968cc01e2d51a017d5e1c9d862b4cb6af3446f5c904b

    SHA512

    c9c79dd999dc9314db1c06a2e1f536bbb32c462f9866cc355bed32dfe729c185a82f69b830bf0933d26e4978d2c573ef9079f95041372f0af953cb3aa0716e3e

  • C:\Windows\Temp\asw-ce675fd7-33fc-450a-b6fc-cb8a41110e69\avast-vpn\icarus.exe

    Filesize

    1.9MB

    MD5

    964112428ff7a7924319214e8ae8e938

    SHA1

    5a0f5addeb15cb45e82cd67f7f9f4b1059fae0e0

    SHA256

    812ed36b8b897d71167dd560586e49839003482bb903cce0745770695e5d070b

    SHA512

    c1c49cada0cc5cd7dbe358ba6748b05b7fe1a81eb15c2a1f40973a8171d38cdeb9a83b4d86014cc0ac5cb949c13f1d5cd0ba001f1ac4710bef2308e69e653731

  • C:\Windows\Temp\asw-ce675fd7-33fc-450a-b6fc-cb8a41110e69\avast-vpn\icarus_product.dll

    Filesize

    962KB

    MD5

    81f5e22e4474941ca8fb2a73cdb50df6

    SHA1

    0f741d44b25a5a65f1f369a688906fa50676e7a0

    SHA256

    5d61f6af7df1c79116498ed1614290d6f066dc3fae7291cf2e85b7153febea7c

    SHA512

    78e1e965428f246e60e5099665ec2673beec14af517564f0a22cc19006ae43ca290f3a235696a1835291df82fe51f75e814785df6f1361d1d6606d13d0275ee1

  • C:\Windows\Temp\asw-ce675fd7-33fc-450a-b6fc-cb8a41110e69\avast-vpn\icarus_ui.exe

    Filesize

    1.6MB

    MD5

    647139088f1338adbc5c8baef26e91bd

    SHA1

    57c822b512ae96f25b968e703e14e8f179f2b2da

    SHA256

    3cb4fef0c41b722ab2b5f04194e77f3655d5d11d20068295e5d4a11c95170578

    SHA512

    8e8dd26d3e17470564f4334963d04b204b40e1667ca68d226556587b034f90557da8e0eb6d36e18381ccbe14f5f1f786947119d1cf0315a9b5cc880f72a5bbb8

  • C:\Windows\Temp\asw-ce675fd7-33fc-450a-b6fc-cb8a41110e69\avast-vpn\product-def.xml

    Filesize

    226KB

    MD5

    fe3809de42a627031b2f721ac685e5e9

    SHA1

    f2dc62066393edc4c8fc76dfedcf85b7226c3ce6

    SHA256

    abc5957b1480399d2d5a4d877c981be930c7a2e9989c7ac91b280c18ee8608c1

    SHA512

    bc64a036b2e6238a4c1fceec8be17eaeac2fef3bb493ca50c44ec5583ff951c00272f05336c07deb95f4067312775db1a59a350bb4aa618f43680552f75f0339

  • C:\Windows\Temp\asw-ce675fd7-33fc-450a-b6fc-cb8a41110e69\common\bug_report.exe

    Filesize

    1.3MB

    MD5

    2af3e46c5148b7e59c6c4ffe5e3db61a

    SHA1

    a3a9cc1425bf49d26d61e825d40941c9aa394a44

    SHA256

    b5e179c395e7608a5814107e05943447966807e2c78af5437e64ffd0d585d9de

    SHA512

    071bbd97bb57fd5702fd1ea49726be122a1c37e59f064b892fc9bd5ad911fbcf6a40d66367b81d434a8289dac131bbd08d1df4e04a9c979880eb394fe821241f

  • C:\Windows\Temp\asw-ce675fd7-33fc-450a-b6fc-cb8a41110e69\common\icarus.exe

    Filesize

    7.2MB

    MD5

    771d132b025ccd15f32844cfd53d3632

    SHA1

    f5f78d85297148ef2950522fee0c57d4e8da8bec

    SHA256

    2bd9414f1391c3faa342d47050b950fc9cfc375ae5d375a6fd42566c573b7a9c

    SHA512

    d4de8b038fe5ce68fd859b5dba6c39cbb7d5c0442593100f2480c8b8e7dba690157a5bb200706caab4ec08293b33b3a648b754d17ff22a01d8560dc2d76522d1

  • C:\Windows\Temp\asw-ce675fd7-33fc-450a-b6fc-cb8a41110e69\common\icarus_ui.exe

    Filesize

    2.0MB

    MD5

    f6bc08a4f83d8b5bc632e9120594444e

    SHA1

    24a8b732f5d32b59f32b2f8bb8c6ce89255f5d3d

    SHA256

    538b386c02fcf4525583fc6e3bcf424eaf8c03612015d6ae22461d8fcb9e8358

    SHA512

    df6d04801bb8c33c66962a49fa5547e4793d213457f56f5be6698f9d78a3956963303ed375c439134587c0469c471f94f3e455642f254085964fb07822fb3622

  • C:\Windows\Temp\asw-ce675fd7-33fc-450a-b6fc-cb8a41110e69\common\icarus_ui.exe

    Filesize

    11.1MB

    MD5

    b077b5fd0ef429f5c194b593d3677f6e

    SHA1

    29dd2441819dc1a30e9f4e749599667c2756f03e

    SHA256

    d52a4a4a69d78548f304433897cf332d9cad9f8a16174553964e015d80a87ff8

    SHA512

    d53044efa54f3e4e432865194edbf893f72d556ad6b3e1bfde79caa8d087f9446f0166e7d884f67382452c0c3a7e41552bbe2055d947197e02da9c350de69730

  • C:\Windows\Temp\asw-ce675fd7-33fc-450a-b6fc-cb8a41110e69\common\product-info.xml

    Filesize

    8KB

    MD5

    659aefcfba62708f4a0f49f900875ca7

    SHA1

    38986a9a2577db3fe80f6739d32548a06b51f68b

    SHA256

    68229887fd84e4c97e04469473a1dd2e6a19a872bc157785574f422605a224fa

    SHA512

    1b06ffc2b72d5ba91675da8861191a10f022c7eac5e85c73e19aeb4bb97f7370e01802fd4112a49b8b28520723dac3d3c719b5f8cee11887f86abb879a818223

  • C:\Windows\Temp\asw-ce675fd7-33fc-450a-b6fc-cb8a41110e69\common\setupui.cont

    Filesize

    179KB

    MD5

    42607a78d51acb232f7b5aee35c81584

    SHA1

    59c5901a444d7916b0416e04fcc6810b1a967de7

    SHA256

    151e229cf01879fc31f211070ed50a46e556d37e5a91c40027a81181b28f6c4e

    SHA512

    27ab2ebdf8543449ac4a1e4f3aebc5d6e7fecf4a6868981b8519b6bc69f1344dedad792e6651746317e8d91d797ec912bece1023e774dc5bb9626e13c3ada606

  • C:\Windows\Temp\asw-ce675fd7-33fc-450a-b6fc-cb8a41110e69\ecoo.edat

    Filesize

    46B

    MD5

    63ad4623a90addc7f59f1fb7b2dd731a

    SHA1

    37e0ace9a2000c9ef3e31c2cbd9d843ab5aaaaa7

    SHA256

    9875a9f9a7e58e8c8132f215a3fdccd4d1fb6deff82ab1a30ce6ccf921248f5f

    SHA512

    6e187298235bb26726c233c60c919c7236a9ca5554f0dd57d4c7742af765726fbd44dd4755c69d6eb136017a0279546ec0c88c1769f861d7c55a5c275f0c2590

  • C:\Windows\Temp\asw-ce675fd7-33fc-450a-b6fc-cb8a41110e69\icarus-info.xml

    Filesize

    1KB

    MD5

    ab11e2646244005abe68fa6063c3d904

    SHA1

    b3264c393f3865e1fc05bd9ad8b2221dab9e9792

    SHA256

    b3545e1e480aae7ae0c8835d9fd59f8cac99eee100ee802bc0a2b9ee54216069

    SHA512

    0078e7b439d3511273cff6bbc2b90588a28748846315aa25bbdb006503753a90ddae2095d98872acf8a54670394dbdbfbbcb58bc689b0ddd98870203c28e2f94