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Resubmissions

02/11/2023, 21:08

231102-zy2f4shf43 10

02/11/2023, 19:29

231102-x7fjwsec8w 10

30/06/2023, 11:57

230630-n4mdlaae31 7

Analysis

  • max time kernel
    361s
  • max time network
    364s
  • platform
    windows7_x64
  • resource
    win7-20231020-en
  • resource tags

    arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
  • submitted
    02/11/2023, 19:29

General

  • Target

    payload.exe

  • Size

    9.0MB

  • MD5

    f6c5df8944a965d0d3aa2e124a1935af

  • SHA1

    3ff36a13827d193a85eed40b59646bad1d676986

  • SHA256

    41554c195bc8c87ddb8bbeacefe77c033f56549a03361dd76c2243546dd1f2d8

  • SHA512

    8d75df03c33e9288b2d4b9e941c89ca2e0e7008e151ee3c104292427266043050f9966d0ff6e5c46890bde404337873768a4cde255778418144766646d08ceae

  • SSDEEP

    196608:cTEcVnJULKrytYcJX7Nfjw9cI1qyz+6weSn5NeCX4X6:4EcVnukcJLtlIwqwemrePX6

Malware Config

Extracted

Family

lucastealer

C2

https://api.telegram.org/bot5749635914:AAHO1FmA3UVCNqptBOADqQF-cFGUoMOYe6g

Signatures

  • Luca Stealer

    Info stealer written in Rust first seen in July 2022.

  • Luca Stealer payload 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\payload.exe
    "C:\Users\Admin\AppData\Local\Temp\payload.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2252
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "powershell.exe" -NoProfile -NonInteractive -NoLogo -Command "Get-Culture | Select -ExpandProperty DisplayName"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2700
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 2252 -s 880
      2⤵
        PID:1460

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\Cab5E77.tmp

      Filesize

      61KB

      MD5

      f3441b8572aae8801c04f3060b550443

      SHA1

      4ef0a35436125d6821831ef36c28ffaf196cda15

      SHA256

      6720349e7d82ee0a8e73920d3c2b7cb2912d9fcf2edb6fd98f2f12820158b0bf

      SHA512

      5ba01ba421b50030e380ae6bbcd2f681f2a91947fe7fedb3c8e6b5f24dce9517abf57b1cf26cc6078d4bb53bde6fcfb2561591337c841f8f2cb121a3d71661b9

    • C:\Users\Admin\AppData\Local\Temp\Tar5EA9.tmp

      Filesize

      163KB

      MD5

      9441737383d21192400eca82fda910ec

      SHA1

      725e0d606a4fc9ba44aa8ffde65bed15e65367e4

      SHA256

      bc3a6e84e41faeb57e7c21aa3b60c2a64777107009727c5b7c0ed8fe658909e5

      SHA512

      7608dd653a66cd364392a78d4711b48d1707768d36996e4d38871c6843b5714e1d7da4b4cc6db969e6000cfa182bcb74216ef6823d1063f036fc5c3413fb8dcf

    • C:\Users\Admin\AppData\Local\Temp\coccoc_default_login_data

      Filesize

      46KB

      MD5

      02d2c46697e3714e49f46b680b9a6b83

      SHA1

      84f98b56d49f01e9b6b76a4e21accf64fd319140

      SHA256

      522cad95d3fa6ebb3274709b8d09bbb1ca37389d0a924cd29e934a75aa04c6c9

      SHA512

      60348a145bfc71b1e07cb35fa79ab5ff472a3d0a557741ea2d39b3772bc395b86e261bd616f65307ae0d997294e49b5548d32f11e86ef3e2704959ca63da8aac

    • C:\Users\Admin\AppData\Local\Temp\coccoc_default_webdata

      Filesize

      92KB

      MD5

      3f2000742dfce009334f21df6014ebe2

      SHA1

      a3d63a0770c7c4b197e00b4a604fb9315711aae8

      SHA256

      43ac1f4879a3e46340214841cb30fe4a62575173f4b0bd731935ad24c369f301

      SHA512

      c8f9c2b333f9bef73350ae002eb9442c9c9b8b50712408c74ac27b4ef80637750ddfbf03c91162ab3561d9f78ba96202c50c58b58256d9e74f2017c6f2c8093c

    • C:\Users\Admin\AppData\Local\Temp\coccoc_network_cookies

      Filesize

      20KB

      MD5

      c9ff7748d8fcef4cf84a5501e996a641

      SHA1

      02867e5010f62f97ebb0cfb32cb3ede9449fe0c9

      SHA256

      4d3f3194cb1133437aa69bb880c8cbb55ddf06ff61a88ca6c3f1bbfbfd35d988

      SHA512

      d36054499869a8f56ac8547ccd5455f1252c24e17d2b185955390b32da7e2a732ace4e0f30f9493fcc61425a2e31ed623465f998f41af69423ee0e3ed1483a73

    • C:\Users\Admin\AppData\Local\Temp\tXnbqnWPl86p3IPQ0VMYvZpeqICpNg\sensfiles.zip

      Filesize

      3.9MB

      MD5

      a7e9165022fffc95e20b736920932b81

      SHA1

      2aa6399b121ea0439da3c5aa29b3e4857ae2c2f3

      SHA256

      425374183b97865c3c710009d4577cf12ee9bca0bdac2bbaba0bcefbaf7496a4

      SHA512

      eca186e01ce60ffe38830cd1f93687490f4025da6cf845a4b3dbd764191736ebbe93639e5ebe4be599781236cdb48ae0fdccb7b8a50d8d99bfeec6e0ba233d33

    • memory/2252-8-0x000000013FE30000-0x0000000140EC7000-memory.dmp

      Filesize

      16.6MB

    • memory/2252-4-0x000000013FE30000-0x0000000140EC7000-memory.dmp

      Filesize

      16.6MB

    • memory/2252-101-0x0000000077BC0000-0x0000000077D69000-memory.dmp

      Filesize

      1.7MB

    • memory/2252-100-0x000000013FE30000-0x0000000140EC7000-memory.dmp

      Filesize

      16.6MB

    • memory/2252-0-0x0000000077D70000-0x0000000077D72000-memory.dmp

      Filesize

      8KB

    • memory/2252-2-0x0000000077D70000-0x0000000077D72000-memory.dmp

      Filesize

      8KB

    • memory/2252-6-0x0000000077BC0000-0x0000000077D69000-memory.dmp

      Filesize

      1.7MB

    • memory/2252-5-0x0000000077D70000-0x0000000077D72000-memory.dmp

      Filesize

      8KB

    • memory/2700-52-0x000007FEF5D60000-0x000007FEF66FD000-memory.dmp

      Filesize

      9.6MB

    • memory/2700-55-0x000000000252B000-0x0000000002592000-memory.dmp

      Filesize

      412KB

    • memory/2700-56-0x000007FEF5D60000-0x000007FEF66FD000-memory.dmp

      Filesize

      9.6MB

    • memory/2700-54-0x0000000002524000-0x0000000002527000-memory.dmp

      Filesize

      12KB

    • memory/2700-53-0x0000000002520000-0x00000000025A0000-memory.dmp

      Filesize

      512KB

    • memory/2700-51-0x00000000024F0000-0x00000000024F8000-memory.dmp

      Filesize

      32KB

    • memory/2700-50-0x000000001B2E0000-0x000000001B5C2000-memory.dmp

      Filesize

      2.9MB