Analysis

  • max time kernel
    24s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26-09-2024 02:11

General

  • Target

    a383f198e76031c2defef77e3b68119cce7eca4b64d3afcc477610c3399373aa.exe

  • Size

    403KB

  • MD5

    fdd34557ce266b92abb5f2c188bc0b31

  • SHA1

    6e3ed4a740842653f6029e2147652d779baa40aa

  • SHA256

    a383f198e76031c2defef77e3b68119cce7eca4b64d3afcc477610c3399373aa

  • SHA512

    313abe34a6d22e4e5aa66d45f7454207d671e214037932442641671beea0b1787f0cfb40988a5ba8e6f524af0ede974ed97b80ecb2888ed99a723403bc9eaa9d

  • SSDEEP

    12288:mPy6bZeOTlVMMIEY3kVQWk5ogbr/ojdiEO:aDJTHlIEYpWg3/o8t

Malware Config

Extracted

Family

vidar

Version

11

Botnet

58cd250b15e666e5f72fcf5caa6cb131

C2

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://drawzhotdog.shop/api

https://gutterydhowi.shop/api

Signatures

  • Detect Vidar Stealer 15 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
  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Drops startup file 64 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 2 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • 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 7 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
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 37 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a383f198e76031c2defef77e3b68119cce7eca4b64d3afcc477610c3399373aa.exe
    "C:\Users\Admin\AppData\Local\Temp\a383f198e76031c2defef77e3b68119cce7eca4b64d3afcc477610c3399373aa.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:756
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
        PID:3592
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        2⤵
        • Checks computer location settings
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1068
        • C:\ProgramData\JKJECBAAAF.exe
          "C:\ProgramData\JKJECBAAAF.exe"
          3⤵
          • Checks computer location settings
          • Executes dropped EXE
          • Adds Run key to start application
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2556
          • C:\Users\Admin\AppData\Local\Temp\Malewmf\MFDBG.exe
            "C:\Users\Admin\AppData\Local\Temp\Malewmf\MFDBG.exe"
            4⤵
            • Checks computer location settings
            • Drops startup file
            • Executes dropped EXE
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:1652
            • C:\Users\Admin\AppData\Local\Temp\Malewmf\FDWDZ.exe
              "C:\Users\Admin\AppData\Local\Temp\Malewmf\FDWDZ.exe" --checker
              5⤵
              • Executes dropped EXE
              • System Location Discovery: System Language Discovery
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:3604
        • C:\ProgramData\GDGHJEHJJD.exe
          "C:\ProgramData\GDGHJEHJJD.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:640
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            4⤵
              PID:3516
            • 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:924
          • C:\Windows\SysWOW64\cmd.exe
            "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\ECBGHCGCBKFI" & exit
            3⤵
              PID:3672
              • C:\Windows\SysWOW64\timeout.exe
                timeout /t 10
                4⤵
                • Delays execution with timeout.exe
                PID:3620
        • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
          "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=3980,i,3239535018877284530,3457823197501312703,262144 --variations-seed-version --mojo-platform-channel-handle=4420 /prefetch:8
          1⤵
            PID:4460
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --field-trial-handle=3684,i,3239535018877284530,3457823197501312703,262144 --variations-seed-version --mojo-platform-channel-handle=3288 /prefetch:3
            1⤵
              PID:3064

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\ProgramData\GDGHJEHJJD.exe

              Filesize

              368KB

              MD5

              0cee1d66332dec523210f62e479284b9

              SHA1

              33f950916e13a6ec654c52160ee47e88c64a5724

              SHA256

              0a6a258bfdb9b1947f2945b44e274ff3f06a7c5c733ff83c2a71c5f911fa9cc0

              SHA512

              603aa4834c6d3a9f3b6b1629eeb2108cecfd7192110f0cf948f2971957a9231ad9d405d8424e3a41b32a8ff415d8f84e55afdec38bf996703093084162d11972

            • C:\ProgramData\JKJECBAAAF.exe

              Filesize

              25KB

              MD5

              168087c84c5ff3664e5e2f4eec18d7dd

              SHA1

              639e9e87103f576617ed08c50910ca92fe5c8c5b

              SHA256

              2a7cdb79045658b9c02ebbb159e5b3680d7d6d832dbd757572f7d202c3fa935d

              SHA512

              89491261e1234f917964566def4b1a50505ba4c2eb90d14c19e2130d78fe65cd61c4bba685909109c7088b35e7fd48f6311ace7a0dd8c703a6d1b1d23d1a54bb

            • C:\ProgramData\mozglue.dll

              Filesize

              593KB

              MD5

              c8fd9be83bc728cc04beffafc2907fe9

              SHA1

              95ab9f701e0024cedfbd312bcfe4e726744c4f2e

              SHA256

              ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

              SHA512

              fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

            • C:\ProgramData\nss3.dll

              Filesize

              2.0MB

              MD5

              1cc453cdf74f31e4d913ff9c10acdde2

              SHA1

              6e85eae544d6e965f15fa5c39700fa7202f3aafe

              SHA256

              ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

              SHA512

              dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

            • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\SCT Auditing Pending Reports

              Filesize

              2B

              MD5

              d751713988987e9331980363e24189ce

              SHA1

              97d170e1550eee4afc0af065b78cda302a97674c

              SHA256

              4f53cda18c2baa0c0354bb5f9a3ecbe5ed12ab4d8e11ba873c2f11161202b945

              SHA512

              b25b294cb4deb69ea00a4c3cf3113904801b6015e5956bd019a8570b1fe1d6040e944ef3cdee16d0a46503ca6e659a25f21cf9ceddc13f352a3c98138c15d6af

            • C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Network\Sdch Dictionaries

              Filesize

              40B

              MD5

              20d4b8fa017a12a108c87f540836e250

              SHA1

              1ac617fac131262b6d3ce1f52f5907e31d5f6f00

              SHA256

              6028bd681dbf11a0a58dde8a0cd884115c04caa59d080ba51bde1b086ce0079d

              SHA512

              507b2b8a8a168ff8f2bdafa5d9d341c44501a5f17d9f63f3d43bd586bc9e8ae33221887869fa86f845b7d067cb7d2a7009efd71dda36e03a40a74fee04b86856

            • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\MFDBG_eefd2725503047f49558e95369e2b61f.lnk

              Filesize

              1KB

              MD5

              1fdff3ada1fc9c264df2743659018909

              SHA1

              75e915452983fc490f6eef4188593cc78788091d

              SHA256

              fd8936c04af96acd6b9f958bae69b21548211d56934187f0833021c096decbf3

              SHA512

              09311191fdd34dc60cbda6e9dc4c9a7b629aa959bb1361dba49cfa7168dff6315496c7cd17a594d7b34570f553aff70efbd58e952fb024ae8f30b692ead6deab

            • memory/640-159-0x00000000001A0000-0x0000000000200000-memory.dmp

              Filesize

              384KB

            • memory/756-0-0x00000000745CE000-0x00000000745CF000-memory.dmp

              Filesize

              4KB

            • memory/756-68-0x00000000745C0000-0x0000000074D70000-memory.dmp

              Filesize

              7.7MB

            • memory/756-6-0x00000000745C0000-0x0000000074D70000-memory.dmp

              Filesize

              7.7MB

            • memory/756-1-0x00000000007E0000-0x0000000000848000-memory.dmp

              Filesize

              416KB

            • memory/924-209-0x0000000000400000-0x0000000000462000-memory.dmp

              Filesize

              392KB

            • memory/924-207-0x0000000000400000-0x0000000000462000-memory.dmp

              Filesize

              392KB

            • memory/924-211-0x0000000000400000-0x0000000000462000-memory.dmp

              Filesize

              392KB

            • memory/1068-20-0x0000000022630000-0x000000002288F000-memory.dmp

              Filesize

              2.4MB

            • memory/1068-95-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/1068-60-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/1068-52-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/1068-86-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/1068-87-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/1068-94-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/1068-18-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/1068-45-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/1068-61-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/1068-3-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/1068-7-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/1068-36-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/1068-9-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/1068-35-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/1068-19-0x0000000000400000-0x0000000000676000-memory.dmp

              Filesize

              2.5MB

            • memory/2556-109-0x0000000071E9E000-0x0000000071E9F000-memory.dmp

              Filesize

              4KB

            • memory/2556-134-0x0000000071E90000-0x0000000072640000-memory.dmp

              Filesize

              7.7MB

            • memory/2556-113-0x0000000071E90000-0x0000000072640000-memory.dmp

              Filesize

              7.7MB

            • memory/2556-110-0x00000000005D0000-0x00000000005DC000-memory.dmp

              Filesize

              48KB