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
    28-09-2024 09:54

General

  • Target

    ef42f7622666c1999fd34ca34489da81a0bdfc38a9105deae3fb7086a78280d5.exe

  • Size

    5.4MB

  • MD5

    cb001c3f82f9c3386ac03c2718f69ca4

  • SHA1

    4cdf57dcdeb3c3ebbac40f7b5d8846da1a9b3f46

  • SHA256

    ef42f7622666c1999fd34ca34489da81a0bdfc38a9105deae3fb7086a78280d5

  • SHA512

    42508b96b9339e37766c25b4d826a4b5f2883ace5f51964f70457d33b636bfa1c1421a22751ec0bd856471fb85510512b48ca3486f5593a3720a6582d30f647e

  • SSDEEP

    98304:sZVMlgGcASSOZMajAIuvkD2Lec3PYs7ecbwJMpjva81bkKyNTR1eXzs0cF:AMaGwEaj4vxeMQmecbuTRkzs5

Malware Config

Extracted

Family

vidar

Version

11

Botnet

adff67a4d89d160d64a32272a3076979

C2

https://t.me/jamsemlg

https://steamcommunity.com/profiles/76561199780418869

https://t.me/ae5ed

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0

Extracted

Family

lumma

C2

https://reinforcenh.shop/api

https://stogeneratmns.shop/api

https://fragnantbui.shop/api

https://drawzhotdog.shop/api

https://vozmeatillu.shop/api

https://offensivedzvju.shop/api

https://ghostreedmnu.shop/api

https://gutterydhowi.shop/api

Extracted

Family

lumma

C2

https://offensivedzvju.shop/api

Signatures

  • Detect Vidar Stealer 12 IoCs
  • Lumma Stealer, LummaC

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

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 4 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

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

  • Suspicious use of SetThreadContext 2 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 39 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ef42f7622666c1999fd34ca34489da81a0bdfc38a9105deae3fb7086a78280d5.exe
    "C:\Users\Admin\AppData\Local\Temp\ef42f7622666c1999fd34ca34489da81a0bdfc38a9105deae3fb7086a78280d5.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1688
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2076
      • C:\ProgramData\AKFHDBFIDA.exe
        "C:\ProgramData\AKFHDBFIDA.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2984
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1244
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\IDHCGDAFBKFI" & exit
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1820
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 10
          4⤵
          • System Location Discovery: System Language Discovery
          • Delays execution with timeout.exe
          PID:2756

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\Cab61E0.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\Temp\Tar61F3.tmp

    Filesize

    181KB

    MD5

    4ea6026cf93ec6338144661bf1202cd1

    SHA1

    a1dec9044f750ad887935a01430bf49322fbdcb7

    SHA256

    8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

    SHA512

    6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

  • \ProgramData\AKFHDBFIDA.exe

    Filesize

    371KB

    MD5

    687846a623c1fe1da95f0fa2fe4479df

    SHA1

    6609d10980800b669e723d4c660c421e27695a29

    SHA256

    bfc7b367d52504b184d127e385219006c1efc7e985d608c000e5eb3a204fc779

    SHA512

    fe150d4f02532ca3d5aa37c6d14741a0a9c0290854ac6924da282ad6585b47bf98e8443aa4281ea89788b8e906f8d11d49b3e88a11e10d4d67b6e2605004a9c3

  • memory/1244-400-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/1244-393-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1244-388-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/1244-389-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/1244-390-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/1244-392-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/1244-391-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/1244-397-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/1244-395-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/1244-406-0x0000000000400000-0x0000000000463000-memory.dmp

    Filesize

    396KB

  • memory/1688-15-0x0000000074730000-0x0000000074E1E000-memory.dmp

    Filesize

    6.9MB

  • memory/1688-6-0x0000000074730000-0x0000000074E1E000-memory.dmp

    Filesize

    6.9MB

  • memory/1688-1-0x00000000012C0000-0x000000000182A000-memory.dmp

    Filesize

    5.4MB

  • memory/1688-0-0x000000007473E000-0x000000007473F000-memory.dmp

    Filesize

    4KB

  • memory/2076-4-0x0000000000400000-0x0000000000B77000-memory.dmp

    Filesize

    7.5MB

  • memory/2076-163-0x0000000000400000-0x0000000000B77000-memory.dmp

    Filesize

    7.5MB

  • memory/2076-205-0x0000000000400000-0x0000000000B77000-memory.dmp

    Filesize

    7.5MB

  • memory/2076-224-0x0000000000400000-0x0000000000B77000-memory.dmp

    Filesize

    7.5MB

  • memory/2076-278-0x0000000000400000-0x0000000000B77000-memory.dmp

    Filesize

    7.5MB

  • memory/2076-297-0x0000000000400000-0x0000000000B77000-memory.dmp

    Filesize

    7.5MB

  • memory/2076-183-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/2076-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2076-8-0x0000000000400000-0x0000000000B77000-memory.dmp

    Filesize

    7.5MB

  • memory/2076-182-0x0000000000400000-0x0000000000B77000-memory.dmp

    Filesize

    7.5MB

  • memory/2076-3-0x0000000000400000-0x0000000000B77000-memory.dmp

    Filesize

    7.5MB

  • memory/2076-17-0x0000000000400000-0x0000000000B77000-memory.dmp

    Filesize

    7.5MB

  • memory/2076-7-0x0000000000400000-0x0000000000B77000-memory.dmp

    Filesize

    7.5MB

  • memory/2076-12-0x0000000000400000-0x0000000000B77000-memory.dmp

    Filesize

    7.5MB

  • memory/2076-14-0x0000000000400000-0x0000000000B77000-memory.dmp

    Filesize

    7.5MB

  • memory/2076-5-0x0000000000400000-0x0000000000B77000-memory.dmp

    Filesize

    7.5MB

  • memory/2076-9-0x0000000000400000-0x0000000000B77000-memory.dmp

    Filesize

    7.5MB

  • memory/2984-399-0x0000000073290000-0x000000007397E000-memory.dmp

    Filesize

    6.9MB

  • memory/2984-368-0x00000000009C0000-0x0000000000A20000-memory.dmp

    Filesize

    384KB

  • memory/2984-367-0x000000007329E000-0x000000007329F000-memory.dmp

    Filesize

    4KB