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Analysis

  • max time kernel
    1635s
  • max time network
    1497s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-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:4912
    • C:\Windows\Temp\asw-2fc7bec4-d166-423b-92ad-fa1f911b0b77\common\icarus.exe
      C:\Windows\Temp\asw-2fc7bec4-d166-423b-92ad-fa1f911b0b77\common\icarus.exe /icarus-info-path:C:\Windows\Temp\asw-2fc7bec4-d166-423b-92ad-fa1f911b0b77\icarus-info.xml /install /sssid:4912
      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:4200
      • C:\Windows\Temp\asw-2fc7bec4-d166-423b-92ad-fa1f911b0b77\common\icarus_ui.exe
        C:\Windows\Temp\asw-2fc7bec4-d166-423b-92ad-fa1f911b0b77\common\icarus_ui.exe /sssid:4912 /er_master:master_ep_f1c69df3-a4b7-457d-8240-9a0f061317f3 /er_ui:ui_ep_9e4b4ab0-7e48-47fa-bbaa-562823d5a3f3
        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:1956
      • C:\Windows\Temp\asw-2fc7bec4-d166-423b-92ad-fa1f911b0b77\avast-vpn\icarus.exe
        C:\Windows\Temp\asw-2fc7bec4-d166-423b-92ad-fa1f911b0b77\avast-vpn\icarus.exe /sssid:4912 /er_master:master_ep_f1c69df3-a4b7-457d-8240-9a0f061317f3 /er_ui:ui_ep_9e4b4ab0-7e48-47fa-bbaa-562823d5a3f3 /er_slave:avast-vpn_slave_ep_3a519b8f-934b-4d5c-9fc3-1c6744d14bf3 /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:2168

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    41KB

    MD5

    74e945c6334b75cea394138a8503ff2d

    SHA1

    b9bb3046bd2a49b184f3d8c08aa1ca19973b2f67

    SHA256

    00aaf51e4a8ebc4dae9b8a990a52dd7a66e1e390b9b6e6539529d8f3899e9dfc

    SHA512

    0b74f5aa987dfe7c56a0f55f22bdd8d187dff831f662828fb2d1eff7161f2d02d77b44230149230167a7ae3ec2eea4b648da75ae5b15fdb4481c7955d9585ff1

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

    Filesize

    10KB

    MD5

    63e658513fc4b3577d37bd14df9bc3bf

    SHA1

    fa4eab2d5e91cb84cd62d8c39e2e95588a6b8480

    SHA256

    540815a0a22596f945ca8e36ffae49b57b86711e069280ad3bd8bce321433a62

    SHA512

    14483e575a399859df4eba8afe51701e7ee307a3b928f9a29956f74c4c378dc545ed30f81722afc9199cde8e45bafc550b1ad8d0872f3eefda55641b6a5afe57

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

    Filesize

    10KB

    MD5

    c31ec85f7c2570f1d88ba74b45d55f87

    SHA1

    0419e638fbd030c9463ad6c38fb45d2f10cbd73d

    SHA256

    267056cfb50bb64d220b58f36c785c55c7f0936d2e497d09d8a88c426a767b0a

    SHA512

    2f79cda173c4aea118fc36f8d0b8aa89c4a1e484767bb42cdfd2bff8a450c486dc93e8d94e3f689e8a35a9d92241d7a03efb7c5dff5abbafcdf039a2a537af99

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

    Filesize

    9KB

    MD5

    0cdc883b1a729bf18fe2935e08e0b275

    SHA1

    3c775dd92d12d6f7ddfbe3b464534bf51f025daa

    SHA256

    76c93f4372dc6153bcf7256e3bd0fd730a86a497e6d39d38269741ce6ed51e5c

    SHA512

    280a185195a95cd7f139d59f6ecd6fa07810a38db66c5306b70c502dd6ad1391fa90231662bda90a884e720945d5bcb0ce001040e8283997659c64bd5001ad21

  • 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

    e7a581e1ad9015a8e356bb5ad63a5c60

    SHA1

    8a4c578dbc80125920dc5db1c5254f75d831c135

    SHA256

    bcfcef8db526be1a5b82928106b0dcd0a8034a7bced5a4d2f04aa99b067ce75f

    SHA512

    6d63d66ab193998f124ab827a116c63b8ff688cb84ccc7520b007837e87ad3294ca349852a5eac1966e153719ae3dcf963f8138fa231aa27311b21f022e38720

  • C:\Windows\Temp\asw-2fc7bec4-d166-423b-92ad-fa1f911b0b77\avast-vpn\config.def

    Filesize

    438B

    MD5

    98a7279694d8416c0439ae4dc7d817ed

    SHA1

    cb872492c840e22f7b9064d34ca073b3d8baf878

    SHA256

    04ffdcb7378e9cd2cfb7d8869ba39e6c4d68442b4afb1cf24fb631c11108961e

    SHA512

    09ee889725aec0e2d2881a02e740298eb5ebc7bd9b08efa4b65af8cf105ecef1acb4a9ba247b62ee35c17e8fefdb2ede575bd63cb8c6f593e9d9b8d285ac4b1b

  • C:\Windows\Temp\asw-2fc7bec4-d166-423b-92ad-fa1f911b0b77\avast-vpn\icarus.exe

    Filesize

    4.0MB

    MD5

    e097ea8996c2c4a1c0bd48f5bf411eca

    SHA1

    ca2306d84e6ddea24b82b0185b1efc6fd8b9bdbe

    SHA256

    7b6fa55530810affe33468243184e259a0d08888e2e315db3c3589b18633f14d

    SHA512

    5fb79794b5d288afe809744e4f9ac8fdb8b42ea8a538c117283cb87bacd902f6a02fcd783fbc6c292c471bdf6b3ccabf570b04bea6fae34ccf0619639834a3cf

  • C:\Windows\Temp\asw-2fc7bec4-d166-423b-92ad-fa1f911b0b77\avast-vpn\icarus_product.dll

    Filesize

    962KB

    MD5

    81f5e22e4474941ca8fb2a73cdb50df6

    SHA1

    0f741d44b25a5a65f1f369a688906fa50676e7a0

    SHA256

    5d61f6af7df1c79116498ed1614290d6f066dc3fae7291cf2e85b7153febea7c

    SHA512

    78e1e965428f246e60e5099665ec2673beec14af517564f0a22cc19006ae43ca290f3a235696a1835291df82fe51f75e814785df6f1361d1d6606d13d0275ee1

  • C:\Windows\Temp\asw-2fc7bec4-d166-423b-92ad-fa1f911b0b77\avast-vpn\product-def.xml

    Filesize

    226KB

    MD5

    fe3809de42a627031b2f721ac685e5e9

    SHA1

    f2dc62066393edc4c8fc76dfedcf85b7226c3ce6

    SHA256

    abc5957b1480399d2d5a4d877c981be930c7a2e9989c7ac91b280c18ee8608c1

    SHA512

    bc64a036b2e6238a4c1fceec8be17eaeac2fef3bb493ca50c44ec5583ff951c00272f05336c07deb95f4067312775db1a59a350bb4aa618f43680552f75f0339

  • C:\Windows\Temp\asw-2fc7bec4-d166-423b-92ad-fa1f911b0b77\common\bug_report.exe

    Filesize

    4.7MB

    MD5

    24fba36d183f2ff43282759eef67fc8d

    SHA1

    8e87312c92f5db0a14cb73610c0770e8b720285b

    SHA256

    3443c184fd1e5f2e006909e3657824edaf19a644ed1b64f5aa725e021f9c8d01

    SHA512

    9bf438f356175fa4afc7a718e9d44037ad1027f0831c44ead9514319d133208ee82ac10204a702255c3b622d017d4533e1cd7054111f27175f71bc5761a6c925

  • C:\Windows\Temp\asw-2fc7bec4-d166-423b-92ad-fa1f911b0b77\common\dump_process.exe

    Filesize

    1.1MB

    MD5

    6526cc2f42187b4b6c34d1fbdc3da15f

    SHA1

    7c53fb157e0ef7a87d7110bc2f7c6a7f83803e05

    SHA256

    fa406fee2ed0889642ed968cc01e2d51a017d5e1c9d862b4cb6af3446f5c904b

    SHA512

    c9c79dd999dc9314db1c06a2e1f536bbb32c462f9866cc355bed32dfe729c185a82f69b830bf0933d26e4978d2c573ef9079f95041372f0af953cb3aa0716e3e

  • C:\Windows\Temp\asw-2fc7bec4-d166-423b-92ad-fa1f911b0b77\common\icarus.exe

    Filesize

    7.2MB

    MD5

    771d132b025ccd15f32844cfd53d3632

    SHA1

    f5f78d85297148ef2950522fee0c57d4e8da8bec

    SHA256

    2bd9414f1391c3faa342d47050b950fc9cfc375ae5d375a6fd42566c573b7a9c

    SHA512

    d4de8b038fe5ce68fd859b5dba6c39cbb7d5c0442593100f2480c8b8e7dba690157a5bb200706caab4ec08293b33b3a648b754d17ff22a01d8560dc2d76522d1

  • C:\Windows\Temp\asw-2fc7bec4-d166-423b-92ad-fa1f911b0b77\common\icarus.exe

    Filesize

    4.6MB

    MD5

    d53fcbe8dda047d5f3409edd9670a60a

    SHA1

    79696201168e2b0bf996967f97e30ed37f2b7b0a

    SHA256

    ca11d0a10a25b28cfb430a2beb68a17f20a03cff041a64d0ecf28ba6dc86244d

    SHA512

    b2d9725d6f3faad14f6879ecd457714aee0f322a59c7498c1409a3655c04740a9ff9bb52500d804d1bfb562c15c0eaff7c8f91afb912e05bb6fbec2c0a327460

  • C:\Windows\Temp\asw-2fc7bec4-d166-423b-92ad-fa1f911b0b77\common\icarus_ui.exe

    Filesize

    11.1MB

    MD5

    b077b5fd0ef429f5c194b593d3677f6e

    SHA1

    29dd2441819dc1a30e9f4e749599667c2756f03e

    SHA256

    d52a4a4a69d78548f304433897cf332d9cad9f8a16174553964e015d80a87ff8

    SHA512

    d53044efa54f3e4e432865194edbf893f72d556ad6b3e1bfde79caa8d087f9446f0166e7d884f67382452c0c3a7e41552bbe2055d947197e02da9c350de69730

  • C:\Windows\Temp\asw-2fc7bec4-d166-423b-92ad-fa1f911b0b77\common\product-info.xml

    Filesize

    8KB

    MD5

    659aefcfba62708f4a0f49f900875ca7

    SHA1

    38986a9a2577db3fe80f6739d32548a06b51f68b

    SHA256

    68229887fd84e4c97e04469473a1dd2e6a19a872bc157785574f422605a224fa

    SHA512

    1b06ffc2b72d5ba91675da8861191a10f022c7eac5e85c73e19aeb4bb97f7370e01802fd4112a49b8b28520723dac3d3c719b5f8cee11887f86abb879a818223

  • C:\Windows\Temp\asw-2fc7bec4-d166-423b-92ad-fa1f911b0b77\common\setupui.cont

    Filesize

    179KB

    MD5

    42607a78d51acb232f7b5aee35c81584

    SHA1

    59c5901a444d7916b0416e04fcc6810b1a967de7

    SHA256

    151e229cf01879fc31f211070ed50a46e556d37e5a91c40027a81181b28f6c4e

    SHA512

    27ab2ebdf8543449ac4a1e4f3aebc5d6e7fecf4a6868981b8519b6bc69f1344dedad792e6651746317e8d91d797ec912bece1023e774dc5bb9626e13c3ada606

  • C:\Windows\Temp\asw-2fc7bec4-d166-423b-92ad-fa1f911b0b77\ecoo.edat

    Filesize

    46B

    MD5

    63ad4623a90addc7f59f1fb7b2dd731a

    SHA1

    37e0ace9a2000c9ef3e31c2cbd9d843ab5aaaaa7

    SHA256

    9875a9f9a7e58e8c8132f215a3fdccd4d1fb6deff82ab1a30ce6ccf921248f5f

    SHA512

    6e187298235bb26726c233c60c919c7236a9ca5554f0dd57d4c7742af765726fbd44dd4755c69d6eb136017a0279546ec0c88c1769f861d7c55a5c275f0c2590

  • C:\Windows\Temp\asw-2fc7bec4-d166-423b-92ad-fa1f911b0b77\icarus-info.xml

    Filesize

    1KB

    MD5

    be6f7bbaa5c562b8448d21825ad38cb0

    SHA1

    e9201f4ec52cf6e87ddeb09ebd7578351e9731bc

    SHA256

    678a55ae6c21191f707de0606e90838d40a4040eebe662bb25c92048b5fd6b64

    SHA512

    61c8ede186fc647162a2efbfd7386b9c6f2f789a873e9d75f4be881a4295c6bb6483096a91ddc5415c062d7af747dac27926a884509c638511ec6ef6431f03d2