Analysis

  • max time kernel
    120s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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 10 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 5 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.

  • Modifies data under HKEY_USERS 43 IoCs
  • 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 18 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:2172
  • 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:2432
    • 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:1232
      • 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:1360
        • 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:2468
          • C:\Windows\SysWOW64\explorer.exe
            C:\Windows\SysWOW64\explorer.exe
            5⤵
            • System Location Discovery: System Language Discovery
            PID:2960
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3028
  • C:\Windows\system32\DrvInst.exe
    DrvInst.exe "1" "200" "STORAGE\VolumeSnapshot\HarddiskVolumeSnapshot19" "" "" "61530dda3" "0000000000000000" "0000000000000328" "00000000000005A4"
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    • Suspicious use of AdjustPrivilegeToken
    PID:2876

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Config.Msi\f76e1aa.rbs

    Filesize

    8KB

    MD5

    5ba874879e033cea7b02d3e3b91d2384

    SHA1

    9e90cd3928df8e1ce8c4109143ae4a7ac6d2ee2e

    SHA256

    8d41a90f2fbda8676c810d234650bc020cef775aa17ceaa46dd676e00b2c2698

    SHA512

    3183c0982420ff8347c65537ec9eee39792b53d262e9d81e98e6563904c9acc34b469898bd7b89ed874b4faef54928ee36e51152b7fd87b6f0a1ee5f66e7fae5

  • 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\Temp\Cab8529.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\Tar854B.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • C:\Users\Admin\AppData\Local\Temp\d43ee63b

    Filesize

    1.0MB

    MD5

    ec6566662072c98dbc395cce7f9e95bb

    SHA1

    a84a0602fd2556757a3efdb0c00a96ab27e67640

    SHA256

    e6482cf91a8112d68a71fda50480c6643facbf9210ffc0d08260006abed12b65

    SHA512

    4f7d0b3688832b52c42b620b3dbea434e534afb6d5ec1ceea7636bae859a8150740850d984e922eb0d6fc1a01cf48b1b173e46593adbc64a7e150923a1ebe63b

  • C:\Windows\Installer\f76e1a8.msi

    Filesize

    1.2MB

    MD5

    6265ad87754194af5bbd40aada2930a9

    SHA1

    211b19af5e77f153f431ac223b9c22e8a5275ae9

    SHA256

    3a9369aefe2a1212ca0bfadc0925d0149caf6436d1d9934e35c976fc9194a344

    SHA512

    fe16f9d906996db99c55ed815fbe5c3be722c49a1a916a89c71c46a7fd2b7c40f2dadabe54a7dfe38a78a85d2115dd34c276f881c910a8cd1505090a2db3779e

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

    Filesize

    330KB

    MD5

    86e38e6248c90cf7b79541f5cf565cce

    SHA1

    a746e8e6ee1a5010e5fa34cee7a3d29a11e9d035

    SHA256

    021152ff66cc6a397f1f2e26575d73c19c7e065ad23e2d811340abf759d6b2e8

    SHA512

    2d0d3238988e41ad47f0f35c6271e7f25379d3de5b949b63f795d80fbdb02594398fa3c7830418ff8feb67c6cac2ccd7d4ec64ade9fec2a1b072718215a9a54d

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

    Filesize

    530KB

    MD5

    bf433279dfa1820d93ef9417fceaf306

    SHA1

    21dfda7d0ce11dba8f786c72d0a4db1dd3a82308

    SHA256

    3fa60435cba38c85310eeba1032bf1d305aeea2e4cf890c17966366d63d43963

    SHA512

    dd1823f68a25cb9d25d125267e9ea4fb0803ec0133b5fd183cf0d832ad1dceca53a8a7d4d79b94ce0b67ef3050334373ec80c211fa1ff8888c4a724d64a1b250

  • memory/1232-34-0x0000000074B40000-0x0000000074CB4000-memory.dmp

    Filesize

    1.5MB

  • memory/1232-35-0x00000000774E0000-0x0000000077689000-memory.dmp

    Filesize

    1.7MB

  • memory/1360-53-0x00000000774E0000-0x0000000077689000-memory.dmp

    Filesize

    1.7MB

  • memory/1360-54-0x0000000074A50000-0x0000000074BC4000-memory.dmp

    Filesize

    1.5MB

  • memory/1360-52-0x0000000074A50000-0x0000000074BC4000-memory.dmp

    Filesize

    1.5MB

  • memory/2468-57-0x00000000774E0000-0x0000000077689000-memory.dmp

    Filesize

    1.7MB

  • memory/2468-58-0x0000000074A50000-0x0000000074BC4000-memory.dmp

    Filesize

    1.5MB

  • memory/2960-60-0x00000000774E0000-0x0000000077689000-memory.dmp

    Filesize

    1.7MB

  • memory/2960-61-0x0000000000400000-0x000000000045E000-memory.dmp

    Filesize

    376KB

  • memory/2960-62-0x0000000000400000-0x000000000045E000-memory.dmp

    Filesize

    376KB