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Analysis

  • max time kernel
    1633s
  • max time network
    1587s
  • platform
    windows10-1703_x64
  • resource
    win10-20240221-en
  • resource tags

    arch:x64arch:x86image:win10-20240221-enlocale:en-usos:windows10-1703-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:3660
    • C:\Windows\Temp\asw-dda8604d-ad39-4a0c-b94d-a534346453af\common\icarus.exe
      C:\Windows\Temp\asw-dda8604d-ad39-4a0c-b94d-a534346453af\common\icarus.exe /icarus-info-path:C:\Windows\Temp\asw-dda8604d-ad39-4a0c-b94d-a534346453af\icarus-info.xml /install /sssid:3660
      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:3628
      • C:\Windows\Temp\asw-dda8604d-ad39-4a0c-b94d-a534346453af\common\icarus_ui.exe
        C:\Windows\Temp\asw-dda8604d-ad39-4a0c-b94d-a534346453af\common\icarus_ui.exe /sssid:3660 /er_master:master_ep_bb0b3193-3d67-4dad-b3b8-65ef54c9cb60 /er_ui:ui_ep_cdc2bb22-ad11-40a9-b1f4-a95abd2cb150
        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:4092
      • C:\Windows\Temp\asw-dda8604d-ad39-4a0c-b94d-a534346453af\avast-vpn\icarus.exe
        C:\Windows\Temp\asw-dda8604d-ad39-4a0c-b94d-a534346453af\avast-vpn\icarus.exe /sssid:3660 /er_master:master_ep_bb0b3193-3d67-4dad-b3b8-65ef54c9cb60 /er_ui:ui_ep_cdc2bb22-ad11-40a9-b1f4-a95abd2cb150 /er_slave:avast-vpn_slave_ep_e53f1a73-affc-4e66-85c6-82ff15bda40c /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:4500

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    44KB

    MD5

    69bb1de523a2570a1bfc06d662c4ef3f

    SHA1

    d80e4ccbba561d3cd655a11d0ba56dbf5ea3c04c

    SHA256

    969969d93a0f11527c5cb375c65e6a5b6c28aa88bfec6cd8504e942dd69b67b2

    SHA512

    0e15d4c276b7d6e604340646e22197fa1be0fa019048f0fdd1d95ce24a6460894f20dd24b23ee1cfd7ef2ef4a28e483df71625a6928b9bf5e16a76f18c6e3c16

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

    Filesize

    10KB

    MD5

    62cccae0818d54a4bcd07843b634322b

    SHA1

    6f50f20f1b6ed85e196eb738a45631aae400e2dc

    SHA256

    7c8971be6623f7ab779aa85b50bf4bdce9da5557b4d93b3d5e2526eb307579ca

    SHA512

    76afc96a2b4dc49cfb97d5eed4bfb74f2e3a19d7ef1ecd66deb4ece3cc1aad453425e450aa501cb8380e0ea5a0612eac73553e5a9353795defec513c3193b078

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

    Filesize

    10KB

    MD5

    8d3b86ac6ca527386ada7038b666a07e

    SHA1

    58c85764140bfe1fa144d62f028ee28e68212f25

    SHA256

    16b17e303315b73f69516ec4dff3931f4ce6fd7379e30dc90a16b6119c14cb08

    SHA512

    9bfb4c05704127f3eacffe426a6a3fa241bb12be24957e310ead131330abfe1a03324bcc2d479df37aac0a5acaa657ed701aa0e326b872350e101a57cd5217e4

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

    Filesize

    16KB

    MD5

    0e37b8c532aabb3dec88bc2c2ba3c7fe

    SHA1

    32e33bd492cf4ecd0cb26cc8d48254c147ef408d

    SHA256

    171beb406f4a1fc024dfc0f7a91bcc3a82e251cdaa3fcd820917211fc8af684e

    SHA512

    48f9e6cb8441bf9e111da9cd4d80e2984c8e3e8112e5e33b63adb60ff3e5525afebe5ea5c7470349d5d3a245db9f7a6fb3fd60273dabd6fadd1752e499246ddd

  • 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

    6f56906bb1b2452d49f37ae4493f96a9

    SHA1

    c5b1e919c9fb5ed96c04ddf84c0d03073449c9e3

    SHA256

    0dfd1e74a7b91693cba32182c31c53af0c82db56ff6ab7aac26137089e3da8d1

    SHA512

    39595227fd6d4ea9495c1e08b34a8df7c5ea63ef805326e93c55e73c20b1617f3699a51e42520b2244a524d78130e36a8eeeceb69222677b1021c34781b3d7d9

  • C:\Windows\Temp\asw-dda8604d-ad39-4a0c-b94d-a534346453af\avast-vpn\bug_report.exe

    Filesize

    2.2MB

    MD5

    c99d5f2dd6bad3a34db26df52e44172a

    SHA1

    a14b346d64616de9e18f80db7e4d59979fefc677

    SHA256

    3662cd28c7d1c55c49e2ccbf872eb45e7266e9dbaf54b856750b921d045b9188

    SHA512

    222921b0528fe91a52e1671813fa15b4b3b63f2e8ed84e1d6f5797d45c48dc556b2182abd0b993ed91508d3781d542d18ed8e6f848f6d18d3735b6c3b6608210

  • C:\Windows\Temp\asw-dda8604d-ad39-4a0c-b94d-a534346453af\avast-vpn\config.def

    Filesize

    438B

    MD5

    98a7279694d8416c0439ae4dc7d817ed

    SHA1

    cb872492c840e22f7b9064d34ca073b3d8baf878

    SHA256

    04ffdcb7378e9cd2cfb7d8869ba39e6c4d68442b4afb1cf24fb631c11108961e

    SHA512

    09ee889725aec0e2d2881a02e740298eb5ebc7bd9b08efa4b65af8cf105ecef1acb4a9ba247b62ee35c17e8fefdb2ede575bd63cb8c6f593e9d9b8d285ac4b1b

  • C:\Windows\Temp\asw-dda8604d-ad39-4a0c-b94d-a534346453af\avast-vpn\dump_process.exe

    Filesize

    1.1MB

    MD5

    6526cc2f42187b4b6c34d1fbdc3da15f

    SHA1

    7c53fb157e0ef7a87d7110bc2f7c6a7f83803e05

    SHA256

    fa406fee2ed0889642ed968cc01e2d51a017d5e1c9d862b4cb6af3446f5c904b

    SHA512

    c9c79dd999dc9314db1c06a2e1f536bbb32c462f9866cc355bed32dfe729c185a82f69b830bf0933d26e4978d2c573ef9079f95041372f0af953cb3aa0716e3e

  • C:\Windows\Temp\asw-dda8604d-ad39-4a0c-b94d-a534346453af\avast-vpn\icarus.exe

    Filesize

    1.7MB

    MD5

    d957758c386347a1d41ea4f13d7684f3

    SHA1

    951575c69588a09bf7ef06837e76fca29c3790dd

    SHA256

    2a2ba2324d68f873dd70ab6c4eef9a2cb10c37b179b3d5e4473efb93891870f7

    SHA512

    8e0f9f1b701e61c4b2a43a895973def15aeb5cb66dd30d75a0236bfd6b603dafd92302da58bee95bd60677ccf5643f6130f22644605998cb09fca15694ec8198

  • C:\Windows\Temp\asw-dda8604d-ad39-4a0c-b94d-a534346453af\avast-vpn\icarus.exe

    Filesize

    2.4MB

    MD5

    0a341802739ccf54312a93f4b9a2d6a7

    SHA1

    1bf304dfca80f5dbe0adda452396f8345100e03e

    SHA256

    818d6f4282f3220dc4a40fff2b6cb637ac68fe46fda4e3da139b9e6b2562e553

    SHA512

    11c339840511b3bb3c685b98005342a8ff8ea339f27518a998fafaa935f62957f73dd4bbe72602d1b80d06e04b45ceebb210d50a855089b1eb50e7a8e4650b0e

  • C:\Windows\Temp\asw-dda8604d-ad39-4a0c-b94d-a534346453af\avast-vpn\icarus_product.dll

    Filesize

    57KB

    MD5

    f241d5dc6c4465f8912ef344b3dc9451

    SHA1

    e053f9ffc03e0c8119a19b7057cc76501a619214

    SHA256

    6f5570259cb6dd559f904a7d071bfd977beb8ae1ec516195bfdf1e3c41725b5e

    SHA512

    15a52aee0b9af874a61c113df906cf6c7d4e2a9cf53437401a50c968a57a5401ba625597a1b47dfdaf6d7043521f220923d699ef4ab028f332d006dd5b6d0fd9

  • C:\Windows\Temp\asw-dda8604d-ad39-4a0c-b94d-a534346453af\avast-vpn\icarus_ui.exe

    Filesize

    1.9MB

    MD5

    f183bfb830d51054484f88af4162e936

    SHA1

    bec8d8a98dbb81a4f5b86ead7158f49f44f84ccb

    SHA256

    d15e0014d88cde26546fd0b07171a387109732a0aa66b259bcf5e39f1b6c29b5

    SHA512

    a6dc41906757c90ea45011a35c8c6e93bf9d0cd5572dc2c4029fdd2cbf3316b920fa59da18f6ae21b4b8b18c010b26aa667eb67def0cdede0d9b9cfa5140606d

  • C:\Windows\Temp\asw-dda8604d-ad39-4a0c-b94d-a534346453af\common\bug_report.exe

    Filesize

    2.0MB

    MD5

    b26275cfc05030699f222a64374908ef

    SHA1

    d61a800fbc9be0ecf21ac615043958cac4e1c495

    SHA256

    72d674f9333c1fef51a2512f1fc80cf25ea01c52710c216d114519b98b98e1a3

    SHA512

    125941de1fb8918e151d1d16486f12b52ef1f454969a8baedb908a9bda4a8e9dd08c480150e2114df847dee3027571b6a4a08e9d45eb2d178d63b8565056ef73

  • C:\Windows\Temp\asw-dda8604d-ad39-4a0c-b94d-a534346453af\common\icarus.exe

    Filesize

    4.0MB

    MD5

    e097ea8996c2c4a1c0bd48f5bf411eca

    SHA1

    ca2306d84e6ddea24b82b0185b1efc6fd8b9bdbe

    SHA256

    7b6fa55530810affe33468243184e259a0d08888e2e315db3c3589b18633f14d

    SHA512

    5fb79794b5d288afe809744e4f9ac8fdb8b42ea8a538c117283cb87bacd902f6a02fcd783fbc6c292c471bdf6b3ccabf570b04bea6fae34ccf0619639834a3cf

  • C:\Windows\Temp\asw-dda8604d-ad39-4a0c-b94d-a534346453af\common\icarus.exe

    Filesize

    2.0MB

    MD5

    702bb3cd6c1519a3b0052554cd662648

    SHA1

    eb50f1e3ac8f91ed7ec5f0b76c34099d2ab4bdb5

    SHA256

    6a6be948fb10126a6b38c9786b63673d6e542b83498c1fb261cbcb4e0c667f89

    SHA512

    2038ff0883a37da2df18c3d580c2970943959d83eb222c2ff16000a40c9f5ee2cbfd8de20db291bb55dc0782e82cd6f911f6b8e7b32a831ff90982aca1d24a9a

  • C:\Windows\Temp\asw-dda8604d-ad39-4a0c-b94d-a534346453af\common\icarus_ui.exe

    Filesize

    2.6MB

    MD5

    a4be5705535d72d3c2752d7fe40d68cd

    SHA1

    84b520cf9db46837e210534d2e1c1225fa0275f3

    SHA256

    5a8eb006aa6443a0e10ba46dae0d762d2f4be83be3445b9e1e0743411ec23a72

    SHA512

    928e490f5eb395bc7cebc7e08eb8b2f80088e530c9144db62259ad6f20e4daf026ee46846fd94816d2d22d30ed5f3e80fecb744494d6a83060e91c8c60dcf412

  • C:\Windows\Temp\asw-dda8604d-ad39-4a0c-b94d-a534346453af\common\icarus_ui.exe

    Filesize

    2.1MB

    MD5

    8e5136d883497ebd97f03a661773d1c2

    SHA1

    a26fa846b35454cc38fc13714f18e675826256f2

    SHA256

    be178df0311cc3869019232d064a8276d790eb6315829b3e553800bf768015bf

    SHA512

    2457cca9622f7a3c773853e5803826e639a871b675f4bb954310092438e6edaf85291ec539817b17f7b2797479e0ba0f5486aceb8c69c9198ac4693deb635b6b

  • C:\Windows\Temp\asw-dda8604d-ad39-4a0c-b94d-a534346453af\common\product-def.xml

    Filesize

    226KB

    MD5

    fe3809de42a627031b2f721ac685e5e9

    SHA1

    f2dc62066393edc4c8fc76dfedcf85b7226c3ce6

    SHA256

    abc5957b1480399d2d5a4d877c981be930c7a2e9989c7ac91b280c18ee8608c1

    SHA512

    bc64a036b2e6238a4c1fceec8be17eaeac2fef3bb493ca50c44ec5583ff951c00272f05336c07deb95f4067312775db1a59a350bb4aa618f43680552f75f0339

  • C:\Windows\Temp\asw-dda8604d-ad39-4a0c-b94d-a534346453af\common\product-info.xml

    Filesize

    8KB

    MD5

    659aefcfba62708f4a0f49f900875ca7

    SHA1

    38986a9a2577db3fe80f6739d32548a06b51f68b

    SHA256

    68229887fd84e4c97e04469473a1dd2e6a19a872bc157785574f422605a224fa

    SHA512

    1b06ffc2b72d5ba91675da8861191a10f022c7eac5e85c73e19aeb4bb97f7370e01802fd4112a49b8b28520723dac3d3c719b5f8cee11887f86abb879a818223

  • C:\Windows\Temp\asw-dda8604d-ad39-4a0c-b94d-a534346453af\common\setupui.cont

    Filesize

    179KB

    MD5

    42607a78d51acb232f7b5aee35c81584

    SHA1

    59c5901a444d7916b0416e04fcc6810b1a967de7

    SHA256

    151e229cf01879fc31f211070ed50a46e556d37e5a91c40027a81181b28f6c4e

    SHA512

    27ab2ebdf8543449ac4a1e4f3aebc5d6e7fecf4a6868981b8519b6bc69f1344dedad792e6651746317e8d91d797ec912bece1023e774dc5bb9626e13c3ada606

  • C:\Windows\Temp\asw-dda8604d-ad39-4a0c-b94d-a534346453af\ecoo.edat

    Filesize

    46B

    MD5

    63ad4623a90addc7f59f1fb7b2dd731a

    SHA1

    37e0ace9a2000c9ef3e31c2cbd9d843ab5aaaaa7

    SHA256

    9875a9f9a7e58e8c8132f215a3fdccd4d1fb6deff82ab1a30ce6ccf921248f5f

    SHA512

    6e187298235bb26726c233c60c919c7236a9ca5554f0dd57d4c7742af765726fbd44dd4755c69d6eb136017a0279546ec0c88c1769f861d7c55a5c275f0c2590

  • C:\Windows\Temp\asw-dda8604d-ad39-4a0c-b94d-a534346453af\icarus-info.xml

    Filesize

    1KB

    MD5

    b990b7fc18d85a24c14aebd08531b4dc

    SHA1

    e4e0df29c5d395119b659b922f427d27c93e3a74

    SHA256

    ff084226a254322c9a5d6425e25b779450942c32df6f4a80f6ca76f619881a78

    SHA512

    3b897ddeae5621e5a11b81b76f5cf827e8511d58ef52ea5574ea64a1778d58543c49259353edb61a0c7d42dbd38b3e7372c8e67048c14c9892e0cba1c528afd9

  • \Windows\Temp\asw-dda8604d-ad39-4a0c-b94d-a534346453af\avast-vpn\icarus_product.dll

    Filesize

    962KB

    MD5

    81f5e22e4474941ca8fb2a73cdb50df6

    SHA1

    0f741d44b25a5a65f1f369a688906fa50676e7a0

    SHA256

    5d61f6af7df1c79116498ed1614290d6f066dc3fae7291cf2e85b7153febea7c

    SHA512

    78e1e965428f246e60e5099665ec2673beec14af517564f0a22cc19006ae43ca290f3a235696a1835291df82fe51f75e814785df6f1361d1d6606d13d0275ee1