Analysis

  • max time kernel
    93s
  • max time network
    96s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-12-2024 23:02

General

  • Target

    f594e0bbd220acd5f8c940230e4baca60f7c65f15b4ddfd3b299e11c42328331N.exe

  • Size

    19KB

  • MD5

    1be9cf4f2be90c6194f7e536fc1b5d70

  • SHA1

    bd82cd7a76d32eb2841cb6539f13ccff53001ecd

  • SHA256

    f594e0bbd220acd5f8c940230e4baca60f7c65f15b4ddfd3b299e11c42328331

  • SHA512

    92fb70c7af37d2c1df32babbaa4fb397c7d009b4747de0d635cea375fc3a827b77845d8805722032e3f53332ba75733e715dcd94c499f87555d4b14ed06153d2

  • SSDEEP

    384:ZRwzDLmCMw4mbE9EnLULXIQERC7UB4knNSVrmh:ASCbbZwERC7UB4knNSpK

Malware Config

Extracted

Family

lumma

Signatures

  • Lumma Stealer, LummaC

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

  • Lumma family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f594e0bbd220acd5f8c940230e4baca60f7c65f15b4ddfd3b299e11c42328331N.exe
    "C:\Users\Admin\AppData\Local\Temp\f594e0bbd220acd5f8c940230e4baca60f7c65f15b4ddfd3b299e11c42328331N.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4064
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath 'C:\ngcjbsk'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4708
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath 'C:\Users'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3432
    • C:\ngcjbsk\taskhost.exe
      "C:\ngcjbsk\taskhost.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:1976

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

    Filesize

    2KB

    MD5

    968cb9309758126772781b83adb8a28f

    SHA1

    8da30e71accf186b2ba11da1797cf67f8f78b47c

    SHA256

    92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

    SHA512

    4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    18KB

    MD5

    dee89769ba015316aade3a3826dae82b

    SHA1

    7c1e6001259aa24e85258449f48b6773274ca93b

    SHA256

    c217b8488d63db9c7939a9dabfe837dbac66767e86eb3cf342963181c93bfe92

    SHA512

    82204bbf7f557d08f932a450d299ce2f5579876271bd1170cff2a360857b231eb2548d8d6e23d527826423d4ad8504e680b77cd948f5f333e8359e5028a98786

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_bygpnpbv.dea.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\ngcjbsk\taskhost.exe

    Filesize

    1.2MB

    MD5

    d5ae5bdbc4c65195283e5a9b357fac95

    SHA1

    d3f310b223cf86afdcb95b8e0a46c4b9b346bed1

    SHA256

    47224f57396aa4bba7f6972553e4762f0868d676cd2793107dca2478babf50e6

    SHA512

    c3acf4f687d16d40ef2175e1b91e2cdfb298493b4dc09d1a81bf860de4457dfeee8ef84899e5780756fc78039c54fb9000c2ed7c6de5f529e9416fec7c9863c7

  • memory/1976-92-0x00000000005D0000-0x000000000098A000-memory.dmp

    Filesize

    3.7MB

  • memory/1976-89-0x00000000005D0000-0x000000000098A000-memory.dmp

    Filesize

    3.7MB

  • memory/3432-66-0x0000000070220000-0x000000007026C000-memory.dmp

    Filesize

    304KB

  • memory/3432-78-0x0000000074C70000-0x0000000075420000-memory.dmp

    Filesize

    7.7MB

  • memory/3432-59-0x0000000005700000-0x0000000005A54000-memory.dmp

    Filesize

    3.3MB

  • memory/3432-64-0x0000000074C70000-0x0000000075420000-memory.dmp

    Filesize

    7.7MB

  • memory/3432-52-0x0000000074C70000-0x0000000075420000-memory.dmp

    Filesize

    7.7MB

  • memory/3432-53-0x0000000074C70000-0x0000000075420000-memory.dmp

    Filesize

    7.7MB

  • memory/4064-79-0x0000000074C70000-0x0000000075420000-memory.dmp

    Filesize

    7.7MB

  • memory/4064-90-0x0000000074C70000-0x0000000075420000-memory.dmp

    Filesize

    7.7MB

  • memory/4064-76-0x0000000074C7E000-0x0000000074C7F000-memory.dmp

    Filesize

    4KB

  • memory/4064-0-0x0000000074C7E000-0x0000000074C7F000-memory.dmp

    Filesize

    4KB

  • memory/4064-2-0x0000000074C70000-0x0000000075420000-memory.dmp

    Filesize

    7.7MB

  • memory/4064-1-0x0000000000210000-0x000000000021C000-memory.dmp

    Filesize

    48KB

  • memory/4708-19-0x0000000074C70000-0x0000000075420000-memory.dmp

    Filesize

    7.7MB

  • memory/4708-50-0x0000000074C70000-0x0000000075420000-memory.dmp

    Filesize

    7.7MB

  • memory/4708-37-0x0000000074C70000-0x0000000075420000-memory.dmp

    Filesize

    7.7MB

  • memory/4708-38-0x0000000074C70000-0x0000000075420000-memory.dmp

    Filesize

    7.7MB

  • memory/4708-40-0x00000000072D0000-0x00000000072EA000-memory.dmp

    Filesize

    104KB

  • memory/4708-39-0x0000000007910000-0x0000000007F8A000-memory.dmp

    Filesize

    6.5MB

  • memory/4708-41-0x0000000007340000-0x000000000734A000-memory.dmp

    Filesize

    40KB

  • memory/4708-42-0x0000000007550000-0x00000000075E6000-memory.dmp

    Filesize

    600KB

  • memory/4708-43-0x00000000074D0000-0x00000000074E1000-memory.dmp

    Filesize

    68KB

  • memory/4708-44-0x0000000007500000-0x000000000750E000-memory.dmp

    Filesize

    56KB

  • memory/4708-45-0x0000000007510000-0x0000000007524000-memory.dmp

    Filesize

    80KB

  • memory/4708-46-0x0000000007610000-0x000000000762A000-memory.dmp

    Filesize

    104KB

  • memory/4708-47-0x00000000075F0000-0x00000000075F8000-memory.dmp

    Filesize

    32KB

  • memory/4708-23-0x0000000006570000-0x00000000065A2000-memory.dmp

    Filesize

    200KB

  • memory/4708-24-0x0000000070220000-0x000000007026C000-memory.dmp

    Filesize

    304KB

  • memory/4708-36-0x0000000007190000-0x0000000007233000-memory.dmp

    Filesize

    652KB

  • memory/4708-35-0x0000000007170000-0x000000000718E000-memory.dmp

    Filesize

    120KB

  • memory/4708-25-0x0000000074C70000-0x0000000075420000-memory.dmp

    Filesize

    7.7MB

  • memory/4708-22-0x0000000005FE0000-0x000000000602C000-memory.dmp

    Filesize

    304KB

  • memory/4708-21-0x0000000005FA0000-0x0000000005FBE000-memory.dmp

    Filesize

    120KB

  • memory/4708-20-0x0000000005AC0000-0x0000000005E14000-memory.dmp

    Filesize

    3.3MB

  • memory/4708-8-0x00000000051A0000-0x0000000005206000-memory.dmp

    Filesize

    408KB

  • memory/4708-14-0x0000000005950000-0x00000000059B6000-memory.dmp

    Filesize

    408KB

  • memory/4708-7-0x0000000005100000-0x0000000005122000-memory.dmp

    Filesize

    136KB

  • memory/4708-6-0x0000000005260000-0x0000000005888000-memory.dmp

    Filesize

    6.2MB

  • memory/4708-5-0x0000000074C70000-0x0000000075420000-memory.dmp

    Filesize

    7.7MB

  • memory/4708-4-0x0000000074C70000-0x0000000075420000-memory.dmp

    Filesize

    7.7MB

  • memory/4708-3-0x00000000026A0000-0x00000000026D6000-memory.dmp

    Filesize

    216KB