Analysis

  • max time kernel
    94s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18-01-2025 21:11

General

  • Target

    Browser_128_344_166.msi

  • Size

    1.2MB

  • MD5

    6265ad87754194af5bbd40aada2930a9

  • SHA1

    211b19af5e77f153f431ac223b9c22e8a5275ae9

  • SHA256

    3a9369aefe2a1212ca0bfadc0925d0149caf6436d1d9934e35c976fc9194a344

  • SHA512

    fe16f9d906996db99c55ed815fbe5c3be722c49a1a916a89c71c46a7fd2b7c40f2dadabe54a7dfe38a78a85d2115dd34c276f881c910a8cd1505090a2db3779e

  • SSDEEP

    24576:y/QsaepAxRKUMbZHkw92S1SBcKLmv47n4pQixafg9WPo7:BsTpAxrYMpmK41Mfg9N

Malware Config

Extracted

Family

lumma

C2

https://handlequarte.shop/api

Signatures

  • Lumma Stealer, LummaC

    Lumma or LummaC is an infostealer written in C++ first seen in August 2022.

  • Lumma family
  • Enumerates connected drives 3 TTPs 46 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 8 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 4 IoCs
  • Event Triggered Execution: Installer Packages 2 TTPs 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks SCSI registry key(s) 3 TTPs 5 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\Browser_128_344_166.msi
    1⤵
    • Enumerates connected drives
    • Event Triggered Execution: Installer Packages
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:1356
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5076
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
        PID:2316
      • C:\Users\Admin\AppData\Local\Pulu\steamerrorreporter.exe
        "C:\Users\Admin\AppData\Local\Pulu\steamerrorreporter.exe"
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:4724
        • C:\Users\Admin\AppData\Roaming\protectwriter\steamerrorreporter.exe
          C:\Users\Admin\AppData\Roaming\protectwriter\steamerrorreporter.exe
          3⤵
          • Suspicious use of SetThreadContext
          • Executes dropped EXE
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of WriteProcessMemory
          PID:2544
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\SysWOW64\cmd.exe
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious behavior: MapViewOfSection
            • Suspicious use of WriteProcessMemory
            PID:4600
            • C:\Windows\SysWOW64\explorer.exe
              C:\Windows\SysWOW64\explorer.exe
              5⤵
              • System Location Discovery: System Language Discovery
              PID:4012
    • C:\Windows\system32\vssvc.exe
      C:\Windows\system32\vssvc.exe
      1⤵
      • Checks SCSI registry key(s)
      • Suspicious use of AdjustPrivilegeToken
      PID:3496

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Config.Msi\e57db0f.rbs

      Filesize

      8KB

      MD5

      aa830ccb0d3b482d060fe4fc1daccbf1

      SHA1

      afff1647975e3cd488fc45771ff81f97a47e3455

      SHA256

      fd16806d5e7024ddf996b9323bf85824724a081241ea0c28665d0bf8381048af

      SHA512

      03a4b863c80d271473d5991f8e9493eea64cd4cbfaa8eb25dbbb049cd28f7f8a72f9b7147269086ecc08c0f387a4fa3d87123d6f7c39b11871515da05add9c67

    • C:\Users\Admin\AppData\Local\Pulu\bookmark.pkg

      Filesize

      807KB

      MD5

      bfa7cf4e086bfa4d7d705c00a8804993

      SHA1

      bab0b20067646f0ce6667bf295e1b1e27c8c8d45

      SHA256

      b522c814134b6f0ccfd956b332125a7b79875a50c546339547bacc75f0e4724f

      SHA512

      c1f23e06071fb5d1158a0c9d671e7c72924a45c335fc01cb5037a45755700d3aa8ffd24d4534394682625da42fbecfb01e4995a2ffaeb6416340ca3412533c33

    • C:\Users\Admin\AppData\Local\Pulu\camellia.ai

      Filesize

      35KB

      MD5

      ef4cc2dc2376885bd5fe462f2e2c2306

      SHA1

      569c6142aad7df78e15248e1ec330aa257c822c6

      SHA256

      a4e58970b06198c3ba9ccea820107cbb9ffd3e6a573cb88fac2b9cf1189bfdb9

      SHA512

      75c3911ff3d8fe1cdf3ac658f0ba8be7c1e23ada08fbac5ec0ef7315728c74e8a470b5f96c287f3e8c93e95bb08f5c60eba4246260e83d949dd980440cadb489

    • C:\Users\Admin\AppData\Local\Pulu\steamerrorreporter.exe

      Filesize

      560KB

      MD5

      dc1681b98049f1df46dd10d7f4c26045

      SHA1

      4c7f5cf7c00b6139979f8aa41f46979666369224

      SHA256

      594f9853124e0a81deeaaecb8ec3d192169e7393778214ef6d8f6460450ef080

      SHA512

      c9a2086326acbab8aba801da0d8bd2aa06951ec7fd7f32a3150f9521498c0b6711552695fbf9d0de7668503630c508bcd68e1d715796ef34f9945035da3fe1ed

    • C:\Users\Admin\AppData\Local\Pulu\tier0_s.dll

      Filesize

      330KB

      MD5

      86e38e6248c90cf7b79541f5cf565cce

      SHA1

      a746e8e6ee1a5010e5fa34cee7a3d29a11e9d035

      SHA256

      021152ff66cc6a397f1f2e26575d73c19c7e065ad23e2d811340abf759d6b2e8

      SHA512

      2d0d3238988e41ad47f0f35c6271e7f25379d3de5b949b63f795d80fbdb02594398fa3c7830418ff8feb67c6cac2ccd7d4ec64ade9fec2a1b072718215a9a54d

    • C:\Users\Admin\AppData\Local\Pulu\vstdlib_s.dll

      Filesize

      530KB

      MD5

      bf433279dfa1820d93ef9417fceaf306

      SHA1

      21dfda7d0ce11dba8f786c72d0a4db1dd3a82308

      SHA256

      3fa60435cba38c85310eeba1032bf1d305aeea2e4cf890c17966366d63d43963

      SHA512

      dd1823f68a25cb9d25d125267e9ea4fb0803ec0133b5fd183cf0d832ad1dceca53a8a7d4d79b94ce0b67ef3050334373ec80c211fa1ff8888c4a724d64a1b250

    • C:\Users\Admin\AppData\Local\Temp\87ada29f

      Filesize

      1.0MB

      MD5

      0c95e7678c32bb0416c57a9fe3c817d4

      SHA1

      6f04a44f1ebc32f58b5bb213ad75ba82425dfc2e

      SHA256

      88d11ad5f943ab7a1861e8959f4190829744f9e17bc8b5276683973038a8244e

      SHA512

      79b9e79891439803aaedb218d9d7aac797b1a03d53e82ef3c25922944676b27bb3630833c1f1ff01345eac7cd86d39046602437065a27b386dcfe501542c830c

    • C:\Windows\Installer\e57db0e.msi

      Filesize

      1.2MB

      MD5

      6265ad87754194af5bbd40aada2930a9

      SHA1

      211b19af5e77f153f431ac223b9c22e8a5275ae9

      SHA256

      3a9369aefe2a1212ca0bfadc0925d0149caf6436d1d9934e35c976fc9194a344

      SHA512

      fe16f9d906996db99c55ed815fbe5c3be722c49a1a916a89c71c46a7fd2b7c40f2dadabe54a7dfe38a78a85d2115dd34c276f881c910a8cd1505090a2db3779e

    • \??\GLOBALROOT\Device\HarddiskVolumeShadowCopy2\System Volume Information\SPP\metadata-2

      Filesize

      24.1MB

      MD5

      88d951bae96fa01b97d903f949f6e44b

      SHA1

      a59b2b6a5f2487a3f516a760f692971213d9ce3c

      SHA256

      69cd8fb2df358a07c89a9f07ba1ef15d73a36acd333d19a4953e52aa914e436f

      SHA512

      76b10931311279834cd870413b9a3bc9d1a5b05c3317c830c334e46695baa55da1817dd647f43eabf6c0afd75fbfc081ee10679d5aa1bfab19d00dc4fc14b184

    • \??\Volume{f9c79713-0000-0000-0000-d01200000000}\System Volume Information\SPP\OnlineMetadataCache\{6b9e37c8-58a7-469e-bb35-519c03ef9049}_OnDiskSnapshotProp

      Filesize

      6KB

      MD5

      706d8803cdee65cffad379e6e110fb9c

      SHA1

      799e51c45956c1f6ef4e9b3f30a21174a6244894

      SHA256

      778cf07f7c8f119ccefd72e6dcd6c03f08cc6c4e406d038b33bd6b16f6f6c5b6

      SHA512

      87fd763fb1bc359e404c5a3d5c018610edb703c417c3856b88e0255f22934e0ba4c0ef74fd2a635585f69be2507cffd6c7a10b4f43a0b79c194fd539b9b182dd

    • memory/2544-52-0x0000000074B20000-0x0000000074C9B000-memory.dmp

      Filesize

      1.5MB

    • memory/2544-53-0x00007FF9A7830000-0x00007FF9A7A25000-memory.dmp

      Filesize

      2.0MB

    • memory/2544-54-0x0000000074B20000-0x0000000074C9B000-memory.dmp

      Filesize

      1.5MB

    • memory/4012-62-0x00000000003F0000-0x000000000044E000-memory.dmp

      Filesize

      376KB

    • memory/4012-61-0x00000000003F0000-0x000000000044E000-memory.dmp

      Filesize

      376KB

    • memory/4012-60-0x00007FF9A7830000-0x00007FF9A7A25000-memory.dmp

      Filesize

      2.0MB

    • memory/4600-57-0x00007FF9A7830000-0x00007FF9A7A25000-memory.dmp

      Filesize

      2.0MB

    • memory/4600-58-0x0000000074B20000-0x0000000074C9B000-memory.dmp

      Filesize

      1.5MB

    • memory/4724-37-0x00007FF9A7830000-0x00007FF9A7A25000-memory.dmp

      Filesize

      2.0MB

    • memory/4724-36-0x0000000074A90000-0x0000000074C0B000-memory.dmp

      Filesize

      1.5MB