Analysis

  • max time kernel
    119s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    05-01-2025 19:48

General

  • Target

    Sigmanly_877c22851b1c18c92c6458beb834e05fa15e088fc9ef88a59122d2e8d51a0b49.exe

  • Size

    1.8MB

  • MD5

    2e0d4188fa62f1816c960adcf5be1a01

  • SHA1

    cba704aa98f11b19ff969d5aa17513ff9642e952

  • SHA256

    877c22851b1c18c92c6458beb834e05fa15e088fc9ef88a59122d2e8d51a0b49

  • SHA512

    d5ba79d0f985d90f7e29387915be6588520b375121ad42c53dab1cc40d3ca9129db1cda4ce239bdbd554f4730a3f2df2c27b8b6a83ce59207ec496d498c82462

  • SSDEEP

    49152:XOGRfbgEz2gOTxV0YEIEe1dhDnxkbX/t:+Cf8Ez25TxVeI1bebPt

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.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Sigmanly_877c22851b1c18c92c6458beb834e05fa15e088fc9ef88a59122d2e8d51a0b49.exe
    "C:\Users\Admin\AppData\Local\Temp\Sigmanly_877c22851b1c18c92c6458beb834e05fa15e088fc9ef88a59122d2e8d51a0b49.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
    • Suspicious behavior: EnumeratesProcesses
    PID:2660

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab2B08.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\Tar2B2B.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • memory/2660-0-0x0000000000030000-0x00000000004E4000-memory.dmp

    Filesize

    4.7MB

  • memory/2660-1-0x0000000077820000-0x0000000077822000-memory.dmp

    Filesize

    8KB

  • memory/2660-2-0x0000000000031000-0x0000000000058000-memory.dmp

    Filesize

    156KB

  • memory/2660-3-0x0000000000030000-0x00000000004E4000-memory.dmp

    Filesize

    4.7MB

  • memory/2660-4-0x0000000000030000-0x00000000004E4000-memory.dmp

    Filesize

    4.7MB

  • memory/2660-5-0x0000000000030000-0x00000000004E4000-memory.dmp

    Filesize

    4.7MB

  • memory/2660-6-0x0000000000030000-0x00000000004E4000-memory.dmp

    Filesize

    4.7MB

  • memory/2660-7-0x0000000000030000-0x00000000004E4000-memory.dmp

    Filesize

    4.7MB

  • memory/2660-8-0x0000000000030000-0x00000000004E4000-memory.dmp

    Filesize

    4.7MB

  • memory/2660-43-0x0000000000030000-0x00000000004E4000-memory.dmp

    Filesize

    4.7MB