Resubmissions

24/08/2024, 21:59

240824-1v7z6ateqk 10

28/07/2024, 20:08

240728-ywzztswdnb 9

Analysis

  • max time kernel
    21s
  • max time network
    17s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    24/08/2024, 21:59

General

  • Target

    smert.exe

  • Size

    20KB

  • MD5

    9741dc2a48ef315a5032a3190c6a9752

  • SHA1

    595cfcf134ac6a97a75407350b509ad37666d546

  • SHA256

    419b6c03a01ad10354c6f70c9077d0bc97a04ca03d0e39748823c8d604da7fe2

  • SHA512

    a8f26e08cdb7078f51f716014499f4af3f0be2ed057cbc3f67da38120d69534ff05a010ab8879ec5bfc692caac7db6f47e777d701d733a6cda307aaddb70cb6f

  • SSDEEP

    384:asaFiLCCr05Sx158JLLU4Act6GoMZOaB8BYsszReS:aPwXl1585LUNGoMZOXszR

Score
9/10

Malware Config

Signatures

  • Renames multiple (1778) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Drops file in Drivers directory 1 IoCs
  • Enumerates connected drives 3 TTPs 2 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 64 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\smert.exe
    "C:\Users\Admin\AppData\Local\Temp\smert.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2744
    • C:\Users\Admin\AppData\Local\Temp\smert.exe
      "C:\Users\Admin\AppData\Local\Temp\smert.exe" --foodsum
      2⤵
      • Drops file in Drivers directory
      • Enumerates connected drives
      • Drops file in System32 directory
      • Drops file in Program Files directory
      • Drops file in Windows directory
      • Modifies system certificate store
      PID:2796

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files\DVD Maker\es-ES\WMM2CLIP.dll.mui.smert

    Filesize

    8KB

    MD5

    c372fe2847d904470b70eaeb5070ec86

    SHA1

    aa80cecf2bec8870c584c8683a8fc324f07b5ed2

    SHA256

    5eb8ceb57f02938f34286eb024e64024ad842aa53590bc6f256f42ae514a37fa

    SHA512

    a6bd359a1503627b14504f07770739cdf4daf9744931c5ca5b7762939660eef11ab973ee2c8d12dfc5be1f742249484522ef78c08266301071c88965ef299cf8

  • C:\Program Files\GrantUnblock.au3.smert

    Filesize

    336KB

    MD5

    690f3e2282c10b0f687b26e449e667f9

    SHA1

    1c89e8b6653f57a0594860a96e7a1fa83c0b4986

    SHA256

    34e1b41add2ee147644c8eee64142ebe49d74cd1734339ea277d83d0bf21b1d5

    SHA512

    4febb4ffaabbb8d03e3825f939317cfed56d2098a3e245fb6fe38bcbf7a71e2db4a943f9ef4effcdffaa18a284b51a6ad6bca8bf3ac9792d10ea562508dbf27b

  • C:\Users\Admin\Documents\README.txt

    Filesize

    795B

    MD5

    979f96a609b386fa66f3b04615a49564

    SHA1

    d639818c571d7feedb438b62443b52ec71ee99c9

    SHA256

    b29e86f27228cd87d4a5c802d67f4b31c6919794686a409b1eba6c45c86a9650

    SHA512

    86d8ce064a54471e69bb928ab22ce2ede6a61b458c8cc1e418c4352bd05ba16d9f4edcb5aa98c7b816990664a436e4836cdb06029d60695f0a0cca1ae4ff8790

  • C:\Users\Admin\Documents\ResolveSuspend.vssx.smert

    Filesize

    1.5MB

    MD5

    5875b6eb1ca39ba1673e4b2b17756e4c

    SHA1

    9adf8d657a22e95a21b22c2c1049381473e94efa

    SHA256

    d22bc7caddb631a3547a8aac17f5e6cdc17a3bcb01882deeb7b2fb1e092ac331

    SHA512

    515fb7e1fbff241330bb0b3c65964a680bfe3aeffef58aecc515d3e6c67f52a877da15004f19f524227ec0d21f2dc2c15783301fcb2d9d8d32c414df97fe378f

  • C:\Windows\Cursors\pen_rl.cur.smert

    Filesize

    1KB

    MD5

    c4fcb396b0bccbccabaa84680ca5e769

    SHA1

    8f60d70b9e6425eb15b28069cba338d5d4099795

    SHA256

    cdab4f38597ece5446a7915c669ea2b1782bf7676f1d91c155b1457b1c7eb7ca

    SHA512

    b96df588be57df409a6de83204179fa920527834d2cc5a994e7b3d6a2f95ac674b9de0504919f571ec57fe140f29172b9ed7b2fa8dc5959a9153cff6574582d3

  • C:\Windows\Cursors\up_il.cur.smert

    Filesize

    1KB

    MD5

    6d6b6cdcb5ac9a8f30de06ffccd15c13

    SHA1

    8ddeb7c94ed7c0fe47deeaf26131c5e3d4411f04

    SHA256

    337b8bd03b43ae909be089ab3ae9d3b3b716f174109ef0195c407e4c4808c63d

    SHA512

    fceec31c6660cca5767b813457cb73b20a78d1e72be07b9341af3e1eb6646048d017f9705bd6ce411841ba7e49160ef5bc163a5ce78b1654c97a7c8ab9595b97

  • C:\Windows\Fonts\BSSYM7.TTF.smert

    Filesize

    53KB

    MD5

    deca2dee13833860d1cb221e11183ed4

    SHA1

    f796cfb6beb46c5917a2e204f3f141a397bb2969

    SHA256

    f5f3c667786cdc87f7d8a19885e9c2eda3974a9aed5e8dfa119c3f0d688025da

    SHA512

    bd94929e4bf8eb5174bbde2633e1d4b8e49230b20a6cb6bfcc755a18f6710f60fae3755ed75e5e5009d021b18933b8b70f10657450df439f67a71f3b26e81858

  • C:\Windows\Fonts\GILI____.TTF.smert

    Filesize

    67KB

    MD5

    e1bfe6fd3f96065e333c65a3d39d90f8

    SHA1

    1f1bc217fe55218154ad35cd5bbd588aa91a8479

    SHA256

    02654b1e4adf90fa33d7ed816de9a2dfb0798746c715abf5cea70cd2e9ea6b8a

    SHA512

    cfe92dff541c6885ca5369d2d28686d28d5fd2c9ccb6bafcd528c955883e496e49270af090c76985295f426168b0bf8a6483056099dc4816ef3aa40caeb5bc74

  • C:\Windows\Fonts\arialbd.ttf.smert

    Filesize

    731KB

    MD5

    536050579471b305c25ae7ce7bbd2068

    SHA1

    fe31edd7dd3c1034b195b84cf9ed65537fc460d1

    SHA256

    2c6656661158f12895d1213a38e40bb2296993fb13c88a6ffb322e855ee974a6

    SHA512

    1c213320d632a44097e0367125a7fa4bf355eca43665fa5a0edb9942e139614954fdc3601280a5608c7b83d6212b0995424328a603a78139e2839f00dbf54197

  • C:\Windows\SysWOW64\cs-CZ\WMPhoto.dll.mui.smert

    Filesize

    2KB

    MD5

    6972ef283070d37862d59383a4e1440b

    SHA1

    61837ffd897de0a763c07fd333f5aa207eff78d2

    SHA256

    a7f096f6c3703fbfa086d4d6a420e8aa37ec7c2e99fc169ad91c022433db4c1d

    SHA512

    fe1075efb90c3ef093342b4be72b89f51592cec9e3f4fbe99dee896f6c193037d49ec2d3427fefef0930db680dd8aa98fefebc0747e253ea61c8da6aa3454232

  • C:\Windows\SysWOW64\en-US\SampleRes.dll.mui.smert

    Filesize

    3KB

    MD5

    79056b4ffacfaa4817310420c968ceea

    SHA1

    80ca9e84850e340dfa3d0e47bcccad1b5edc06fc

    SHA256

    708795f29cbd575be4867894953974664b7487f90d72410e91037380b2c5508c

    SHA512

    56480b16fd0d918ab243988d8c54b8681e76f0ea3903e27f1813e13fcf2eb09f125df7756c64fa487341713d39ed127c64a4f394a722cd80a50d992e63778442

  • C:\Windows\SysWOW64\en-US\napipsec.dll.mui.smert

    Filesize

    3KB

    MD5

    28705cd721c5f145c6d14bde99c2d8e7

    SHA1

    2f2495752b245b61d1672dd12fdaee38e917b6e4

    SHA256

    5faeacc7af182b694102451f0dfb29f90819b77cd82ccbdc19d11a73d3d54863

    SHA512

    92033e4929c99cca53a1ce30b9ffe9604cec255f89796d1d1dfcffd7f04773d851d5cc46b52a68abc8de6819462cbcd65df9616df19e539eaeb1290936fa8a46

  • C:\Windows\SysWOW64\it-IT\upnp.dll.mui.smert

    Filesize

    2KB

    MD5

    44d510ea3820fbedac7639c3ede3e05e

    SHA1

    32dfcc42f3ca9a22cfd0c0508c3d54bb5126cf3d

    SHA256

    44dd2e9f01b19f4c5eed2cf160c580f4693a3537c97e2e0c6f57c2fec51c2966

    SHA512

    7d73239811b62eb0a10a21816bc5fc5b1d64c468c3d3781895c2e726d4bfc42c25e6a933492e2fcff3f91613b84e7941dd8d5b77f2400c96ee57a25fd2308d67

  • C:\Windows\SysWOW64\it-IT\wiaservc.dll.mui.smert

    Filesize

    2KB

    MD5

    f4f2e56e36072fc06e8f715cdf3a2914

    SHA1

    98e65fc0c4cf484b62c59b4dc4c5b082d65e9efd

    SHA256

    ca08e24676f85fe683c03f0918b8fbe402f2c36d04f4e9f9611eba4d6b661b97

    SHA512

    e5656f4ccc06609efea07ac2c2b70d92e19913c3cd3123fef6f06de0ce0fcc4f45229fa719b0086f9b62fc053b51c542172e1bec2ab07409f37349eb78a4a3ac

  • C:\Windows\SysWOW64\ja-JP\adsldp.dll.mui.smert

    Filesize

    2KB

    MD5

    41d93c696c6e1e5cc330177e6ed7c46d

    SHA1

    0af48ee178f6665fc77c2d681b5344976d20cd8b

    SHA256

    05e3211d249a26d04162bc5b7bc6198c09d7851e4c5d6e1ccfa4e04bb5d3e85e

    SHA512

    6079e29cb30179f0cfea4e0d6534549b90cbe2ef88d3599d1a08f5fd15de2caaf4a3308bea85ac5acfee77d6f26b1ced4b2e511d5166988f3c0c4a8e832048b1

  • C:\Windows\SysWOW64\ja-JP\msaatext.dll.mui.smert

    Filesize

    2KB

    MD5

    59dcf04cdd51be6097e6aa072d3a7213

    SHA1

    a0321b2561e4934f2ea3b3bd3fab536145bb0b65

    SHA256

    7c4db71de33fff66b5e6a94c63ebecc0187c1585264300b5b72d0cb9cf39474b

    SHA512

    8cfff17e6b080aba8c2a5712f45f257b0d755c348e42fefd9ecd32e71b9b6f111b5c4e1aa60be08500c33ab687339cdb71072052ea373152cb7b998190b20479

  • C:\Windows\SysWOW64\sqlceoledb30.dll.smert

    Filesize

    148KB

    MD5

    7acbd1e0502af3714456462ae77e1ffb

    SHA1

    4bbc1c99d47c1d58ca65959c24824ae0ad9fce97

    SHA256

    5145ed0454b01cd47e2d362f3b3f8303b5907142c09930290e48a157fc2394ad

    SHA512

    ee1070be3bdf37c45835d11a2cbf50f45d08d5c9e15aae6ca49bfc9a8f8ac20f49f62b968c9f3cdcb82122bb79f07999204295768fc793c7716f4e0b293e8b74

  • C:\Windows\System32\es-ES\WPDSp.dll.mui.smert

    Filesize

    2KB

    MD5

    144e296915311716d466bae3c9750f1a

    SHA1

    ba05eb258cad27333051fc5cf0504d689e695ad7

    SHA256

    b19b39d2e3e7a579838c911e6567c87ab0615ebcec27c049dc8363da52bdbb40

    SHA512

    c8ea766968112d18de9a7821443a621044f7b9e664bddb7dfd84ca0a0e6f8dda39141b5db2f794a99dfcfe14d50a92691eca95b94a2b0b8b0d82af16f79126b6

  • C:\Windows\System32\es-ES\bthprops.cpl.mui.smert

    Filesize

    30KB

    MD5

    59afd41db0227565318446a101e06fcc

    SHA1

    a15d99f3fe4274603607882813db2c8e07e7b44c

    SHA256

    702d04926b9f49c2e5e227ae2d7280d35c817a697c0c567fa70229f47870bb06

    SHA512

    81916d28ea27dd13662174767ca7465f43a9f280a1899ce5a3e331cf472ceb2460770de9caf9bc1e5a79e7944483c8b5833fc32d570672a3b0ca8b320157df54

  • C:\Windows\System32\es-ES\msdrm.dll.mui.smert

    Filesize

    3KB

    MD5

    4b0120e55149cadc064c4e9508f00951

    SHA1

    845fc321522b5cf5f00a3c5ad71bab2e4bb55a40

    SHA256

    bb5d9b985df1d42acd7097bfe9539d7433bf9423aca2acc7db9c5f8766c6a94a

    SHA512

    978a3801c73c8c588d03d2f517abc3c5a5343b069c936a13a90748d00f00c259d9d96c1a70ee00a51bf2f880ae9f369a56770cd6273169173bcf9dd381355e2d

  • C:\Windows\System32\es-ES\pnidui.dll.mui.smert

    Filesize

    18KB

    MD5

    2f16948c529a6cb5b58ab14b0cf0c3dd

    SHA1

    6c1ad94d316ba6e88f82ad3b28ed0d2cb438c535

    SHA256

    fc5a1a6463733841fc678b919c17e8b3483ba127ad210d32de37da115579ba79

    SHA512

    9f77b301701a1fb51de21af1977bcdecbb8d1bde08e9bdd65dba8e32e13b4063e831a4417181233d8209ddfa02ba87867b9494698e00ffd06a86d59a76c52724

  • C:\Windows\System32\es-ES\rdpcorekmts.dll.mui.smert

    Filesize

    2KB

    MD5

    49b9a44ab51571c4a6bc251a01b13561

    SHA1

    5010ca72055f53b6b9a5ce83236bcc4bf1a8a6eb

    SHA256

    34540589e79610aece9a922c3877d6cd319cea5a9aedc3f938f27537828566c6

    SHA512

    689ea71eb4e84ce685014f9d831495090beb2346a019885370b1f5486c854b13a87652a82fbe7611d4d5eb2d093d93a56c563d72747a892e5afa73d57843128c

  • C:\Windows\System32\it-IT\adsmsext.dll.mui.smert

    Filesize

    2KB

    MD5

    a28e185cc6523b2c627def829bbf9ad8

    SHA1

    7589f13dde2d151b41809a8b0b6c8d606c967134

    SHA256

    12ec8b104fb4c3cdd737c3d099ee344014f40e38ca09c6b4b6afb0e55f29a873

    SHA512

    16fbd94119975f81aceb3dcbfc12218251033f615dfbcae35253b44582039c0bfad3ca63cfe67717998f4a530cc7739d47aa9484738869a200b950d3b47df323

  • C:\Windows\System32\it-IT\kernel32.dll.mui.smert

    Filesize

    855KB

    MD5

    3bfc76a58b9f03c8716bbf57235335e3

    SHA1

    bd35770e03dcfd0054bafda270ed671a31648589

    SHA256

    4a0aed27e2ec08451e1054a0017fc0d63ef326c92a6c9475af32c2f280982277

    SHA512

    91402109b0129673d6c1a9977739f63f1260b7ca8fe7de0bb9a130a67cb3da224a3dabcea6a093926cd040b85874e25bbe4a147c64d8bd4f2afb1b4f9e4ceec6

  • C:\Windows\ehome\ItvRes.dll.smert

    Filesize

    2KB

    MD5

    6f3ccfc853bdad0bc04dd369df53821d

    SHA1

    05b19868c80be6a47ad68e28925fcaa28e7e4d5a

    SHA256

    e24752869f99d1fb8afd67ebc4adde9d2447c94d7aa5d37ceb87a2a451bdf7e0

    SHA512

    55d10f99e58ae536369e1e6073f78593009d740f1f09e1588ba83361eaed7d08e88ce68c9a7f278eb4d5acff9dfff44a4b7587df141cc9a3ff0c347e7d1336da

  • C:\Windows\ehome\it-IT\playready_eula.txt.smert

    Filesize

    19KB

    MD5

    869f4e020308431d623fc6d1ac641df0

    SHA1

    1fbb81e8cceb7fb8e598f6a51b614c2347b7c6ea

    SHA256

    0b656847c0cc174e8fad4b9b86472ec443e9dab9e9cd4784ee8fa57f62cdf056

    SHA512

    6fefc698ceafa4153ea5b7f9cbec1a8e891072597cd5b00fd78fbf5156b4872846b5a663e9379144f780caa37613e39714aa8a593c943c40b864275edfd83749