Analysis

  • max time kernel
    101s
  • max time network
    105s
  • platform
    windows11-21h2_x64
  • resource
    win11-20250313-en
  • submitted
    27/03/2025, 14:36

General

  • Target
    appFile_patched.exe
  • Size 36.5MB
  • Sample250327-rykvcstsg1
  • SHA256 8972f78a13ce283e5e66aa5fda7757883cee93bc9002c456505c1dcfcfbb9204
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • lumma

C2
  • https://steelixr.live/aguiz

  • https://oreheatq.live/gsopp

  • https://castmaxw.run/ganzde

  • https://weldorae.digital/geds

  • https://advennture.top/GKsiio

  • https://targett.top/dsANGt

  • https://smeltingt.run/giiaus

  • https://ferromny.digital/gwpd

Signatures

  • Lumma Stealer, LummaC

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

  • Lumma family
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Enumerates processes with tasklist 1 TTPs 2 IoCs
  • Drops file in Windows directory 8 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 13 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\appFile_patched.exe
    "C:\Users\Admin\AppData\Local\Temp\appFile_patched.exe"
    1⤵
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:428
    • C:\Windows\SysWOW64\CMD.exe
      "C:\Windows\system32\CMD.exe" /c copy Tu.docm Tu.docm.bat & Tu.docm.bat
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3096
      • C:\Windows\SysWOW64\tasklist.exe
        tasklist
        3⤵
        • Enumerates processes with tasklist
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:248
      • C:\Windows\SysWOW64\findstr.exe
        findstr /I "opssvc wrsa"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4880
      • C:\Windows\SysWOW64\tasklist.exe
        tasklist
        3⤵
        • Enumerates processes with tasklist
        • System Location Discovery: System Language Discovery
        • Suspicious use of AdjustPrivilegeToken
        PID:3156
      • C:\Windows\SysWOW64\findstr.exe
        findstr "SophosHealth bdservicehost AvastUI AVGUI nsWscSvc ekrn"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1260
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c md 33845
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2560
      • C:\Windows\SysWOW64\extrac32.exe
        extrac32 /Y /E Conducting.docm
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4616
      • C:\Windows\SysWOW64\findstr.exe
        findstr /V "DETECTIVE" Puzzle
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1068
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c copy /b 33845\Consumers.com + Period + Passes + Vegetation + Performs + Powerful + Distinct + Underlying + Address + Referring + Guarantees + Pvc 33845\Consumers.com
        3⤵
        • System Location Discovery: System Language Discovery
        PID:4376
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c copy /b ..\Vacancies.docm + ..\Katrina.docm + ..\Recipients.docm + ..\Excellent.docm + ..\Sisters.docm + ..\Operators.docm + ..\Preservation.docm + ..\Reverse.docm O
        3⤵
        • System Location Discovery: System Language Discovery
        PID:1040
      • C:\Users\Admin\AppData\Local\Temp\33845\Consumers.com
        Consumers.com O
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SendNotifyMessage
        PID:3600
      • C:\Windows\SysWOW64\choice.exe
        choice /d y /t 5
        3⤵
        • System Location Discovery: System Language Discovery
        PID:684

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        Consumers.com

        • Path C:\Users\Admin\AppData\Local\Temp\33845\Consumers.com
        • Size 92KB
        • SHA256 948e8664319d88075c2bf28d6cd767f3d032f6fdab8acd82701cb901facc10a8
        • MD5 SHA1 SHA512 SSDEEP

        Consumers.com

        • Path C:\Users\Admin\AppData\Local\Temp\33845\Consumers.com
        • Size 925KB
        • SHA256 1300262a9d6bb6fcbefc0d299cce194435790e70b9c7b4a651e202e90a32fd49
        • MD5 SHA1 SHA512 SSDEEP

        O

        • Path C:\Users\Admin\AppData\Local\Temp\33845\O
        • Size 518KB
        • SHA256 063dd8a0ad2484cf280bf51f7f2103f0e7aabbea951f015bb06327228cf66126
        • MD5 SHA1 SHA512 SSDEEP

        Address

        • Path C:\Users\Admin\AppData\Local\Temp\Address
        • Size 123KB
        • SHA256 6c308d3229b5641f13adf3e72d5589ebc7d58522b0b6fd29ad9fe68f14ab6d69
        • MD5 SHA1 SHA512 SSDEEP

        Conducting.docm

        • Path C:\Users\Admin\AppData\Local\Temp\Conducting.docm
        • Size 476KB
        • SHA256 5c005ae7afd586c938fb13ae9911f625fa54dd98340eb1ef2983844ce0a16c90
        • MD5 SHA1 SHA512 SSDEEP

        Distinct

        • Path C:\Users\Admin\AppData\Local\Temp\Distinct
        • Size 55KB
        • SHA256 9b80897b79744672f5f803e6b5130b18a47f87fed7235b2e238c9d95984c1751
        • MD5 SHA1 SHA512 SSDEEP

        Excellent.docm

        • Path C:\Users\Admin\AppData\Local\Temp\Excellent.docm
        • Size 55KB
        • SHA256 5d7a466980cb8b71cb130901bed9c5e1d845f59b1f0e4d389eea4315801fa177
        • MD5 SHA1 SHA512 SSDEEP

        Guarantees

        • Path C:\Users\Admin\AppData\Local\Temp\Guarantees
        • Size 63KB
        • SHA256 454f08f6fd428e549b85f0b9ac9cc7645b8dc0b0a45c0a176aee655589ba252c
        • MD5 SHA1 SHA512 SSDEEP

        Katrina.docm

        • Path C:\Users\Admin\AppData\Local\Temp\Katrina.docm
        • Size 70KB
        • SHA256 2c967e8ac256f3faa5effdb316af1cf291666ab6aaee621b07ae029d8ca58bf9
        • MD5 SHA1 SHA512 SSDEEP

        Operators.docm

        • Path C:\Users\Admin\AppData\Local\Temp\Operators.docm
        • Size 88KB
        • SHA256 ccea178ae66b31ac0e185acc71c47c500776c7aebfd674b1c1725ba7eff93820
        • MD5 SHA1 SHA512 SSDEEP

        Passes

        • Path C:\Users\Admin\AppData\Local\Temp\Passes
        • Size 112KB
        • SHA256 a714cf775080e4163217342019d071e42377d2431a2a1c0802cabd9ebe8b91d4
        • MD5 SHA1 SHA512 SSDEEP

        Performs

        • Path C:\Users\Admin\AppData\Local\Temp\Performs
        • Size 67KB
        • SHA256 fc840d61581074226e43c1874b77a13750cd57a0ba899d73ff6124b13a84de2e
        • MD5 SHA1 SHA512 SSDEEP

        Period

        • Path C:\Users\Admin\AppData\Local\Temp\Period
        • Size 91KB
        • SHA256 f7080e03fba22423182243d3f9c76d804681e200907c4050e243e3797a27c311
        • MD5 SHA1 SHA512 SSDEEP

        Powerful

        • Path C:\Users\Admin\AppData\Local\Temp\Powerful
        • Size 99KB
        • SHA256 ca54c4c41478f79a28d5c797e07f94b577faabf6fff1062f6669233679b54604
        • MD5 SHA1 SHA512 SSDEEP

        Preservation.docm

        • Path C:\Users\Admin\AppData\Local\Temp\Preservation.docm
        • Size 55KB
        • SHA256 2ce90e79656cec167082fbdcd05054e6011f6823ad4e0d06bd5307045e67674d
        • MD5 SHA1 SHA512 SSDEEP

        Puzzle

        • Path C:\Users\Admin\AppData\Local\Temp\Puzzle
        • Size 1KB
        • SHA256 68aa8bd38aaa985cae52912e3f8c6e9aaec7569e27ad2e2cd8dbdc19c2da22e2
        • MD5 SHA1 SHA512

        Pvc

        • Path C:\Users\Admin\AppData\Local\Temp\Pvc
        • Size 104KB
        • SHA256 e6961864fb45f8de59124c41d6bdd26f36b2b23416591eb57a57de3f2ffd6952
        • MD5 SHA1 SHA512 SSDEEP

        Recipients.docm

        • Path C:\Users\Admin\AppData\Local\Temp\Recipients.docm
        • Size 69KB
        • SHA256 85e9c2f1047c066003f3bd62b141e627edc369cfa14e489f982ad1f41b75a262
        • MD5 SHA1 SHA512 SSDEEP

        Referring

        • Path C:\Users\Admin\AppData\Local\Temp\Referring
        • Size 73KB
        • SHA256 60185c8a23816cbd6d54465e7659a3ee65849a5d1bea1fdc3dbaf6059cdf461e
        • MD5 SHA1 SHA512 SSDEEP

        Reverse.docm

        • Path C:\Users\Admin\AppData\Local\Temp\Reverse.docm
        • Size 43KB
        • SHA256 94ffa0ab6c75641adda19b3f6cf53bc16a73e9b3a2f05a0068988628dc7f65a7
        • MD5 SHA1 SHA512 SSDEEP

        Sisters.docm

        • Path C:\Users\Admin\AppData\Local\Temp\Sisters.docm
        • Size 60KB
        • SHA256 a7fa65ceaba7e37558ef89825b4d499596d1801e42a0d78b715786d5c2a0006a
        • MD5 SHA1 SHA512 SSDEEP

        Tu.docm

        • Path C:\Users\Admin\AppData\Local\Temp\Tu.docm
        • Size 27KB
        • SHA256 a599cc839786c2b54ffba36c0edbdeb0c4378c90ff9a952c9aae8c9720421805
        • MD5 SHA1 SHA512 SSDEEP

        Underlying

        • Path C:\Users\Admin\AppData\Local\Temp\Underlying
        • Size 76KB
        • SHA256 7c076c215ffe35c968cf15dc431230f45a429d7ba7e37ae85176437077f7669f
        • MD5 SHA1 SHA512 SSDEEP

        Vacancies.docm

        • Path C:\Users\Admin\AppData\Local\Temp\Vacancies.docm
        • Size 78KB
        • SHA256 6f31679d60fd8a755a7bab7669185b4ea100671c638bd8c7309313c3b9247ddd
        • MD5 SHA1 SHA512 SSDEEP

        Vegetation

        • Path C:\Users\Admin\AppData\Local\Temp\Vegetation
        • Size 60KB
        • SHA256 c69331622c4c716e9394666c1112bd8702fb63742ae56c914d68ff42cefe578b
        • MD5 SHA1 SHA512 SSDEEP

        memory/3600-653-0x00000000001D0000-0x0000000000232000-memory.dmp

        memory/3600-655-0x00000000001D0000-0x0000000000232000-memory.dmp

        memory/3600-656-0x00000000001D0000-0x0000000000232000-memory.dmp

        memory/3600-657-0x00000000001D0000-0x0000000000232000-memory.dmp

        memory/3600-654-0x00000000001D0000-0x0000000000232000-memory.dmp