Analysis

  • max time kernel
    118s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    07-01-2025 12:04

General

  • Target

    Sigmanly_6d5ad03df2eeaa1aa6b67612c564e84ce25ee20972d4060154c2587f2ae06e2f.exe

  • Size

    1.8MB

  • MD5

    8cb60f5681c5a681f60da6e2d7e589c0

  • SHA1

    2ad88182a81deab99dcda4337bbcd84e9d02bb83

  • SHA256

    6d5ad03df2eeaa1aa6b67612c564e84ce25ee20972d4060154c2587f2ae06e2f

  • SHA512

    10bcb3347074e907235fbe7fb0c9f0982d4d74c70a35fa956045977b915a53e404f2a646b41708cc4c31396d0e91d4b5e1f08698aa9cf14ce1ce570833659ab2

  • SSDEEP

    49152:bl3Z4CRoKSo+7uj2RJ7VVNk1cktO3nTVoZFo:R3ZxRdSn7N5v6iktO3TVoI

Malware Config

Extracted

Family

lumma

C2

https://hummskitnj.buzz/api

https://cashfuzysao.buzz/api

https://appliacnesot.buzz/api

https://screwamusresz.buzz/api

https://inherineau.buzz/api

https://scentniej.buzz/api

https://rebuildeso.buzz/api

https://prisonyfork.buzz/api

https://mindhandru.buzz/api

Signatures

  • Lumma Stealer, LummaC

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

  • Lumma family
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Identifies Wine through registry keys 2 TTPs 1 IoCs

    Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

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

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Sigmanly_6d5ad03df2eeaa1aa6b67612c564e84ce25ee20972d4060154c2587f2ae06e2f.exe
    "C:\Users\Admin\AppData\Local\Temp\Sigmanly_6d5ad03df2eeaa1aa6b67612c564e84ce25ee20972d4060154c2587f2ae06e2f.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Identifies Wine through registry keys
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    PID:2492

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab65E6.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\Tar6666.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • memory/2492-0-0x0000000000F40000-0x00000000013DD000-memory.dmp

    Filesize

    4.6MB

  • memory/2492-1-0x0000000077E60000-0x0000000077E62000-memory.dmp

    Filesize

    8KB

  • memory/2492-2-0x0000000000F41000-0x0000000000F68000-memory.dmp

    Filesize

    156KB

  • memory/2492-3-0x0000000000F40000-0x00000000013DD000-memory.dmp

    Filesize

    4.6MB

  • memory/2492-4-0x0000000000F40000-0x00000000013DD000-memory.dmp

    Filesize

    4.6MB

  • memory/2492-6-0x0000000000F40000-0x00000000013DD000-memory.dmp

    Filesize

    4.6MB

  • memory/2492-5-0x0000000000F40000-0x00000000013DD000-memory.dmp

    Filesize

    4.6MB

  • memory/2492-42-0x0000000000F40000-0x00000000013DD000-memory.dmp

    Filesize

    4.6MB