Analysis

  • max time kernel
    151s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    03-07-2022 07:47

General

  • Target

    tmp.exe

  • Size

    1.6MB

  • MD5

    52da53b1c61bf409b32f845f3806479a

  • SHA1

    4e4120c159b2ff506c8719332dc38298ac092659

  • SHA256

    5897858ea935658dd34bc4ef2692d4694eea6be164a9d8566b55c769dae2c8bc

  • SHA512

    3a1ffa7db0f5b90deccbf9f84033e19ed43f9d28006f40c2c8d1cbe7c337f6fd458c966bef0b29c8f1cde725d1e1abfecb65c00b5ae6f908dcb33ecb83c7dbca

Malware Config

Extracted

Family

xloader

Version

2.6

Campaign

mt88

Decoy

syzbf32.xyz

pertlines.com

vybaveniprocyklostezky.com

elianmsalas.tech

a-snag-tokei-kaitori.com

tuvistaing.com

whoyoucall.net

l8e9gr.xyz

sophrologuemontevrain77.com

ciclean.com

the-roel.com

campgreencove.com

foremostbookkeeping.com

zamanscorner.com

efeturozemniyet.com

penelope.team

murata.life

solfuls.com

tradefitinvesting.com

skinbid.pro

Signatures

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • suricata: ET MALWARE FormBook CnC Checkin (GET)

    suricata: ET MALWARE FormBook CnC Checkin (GET)

  • suricata: ET MALWARE FormBook CnC Checkin (POST) M2

    suricata: ET MALWARE FormBook CnC Checkin (POST) M2

  • Xloader Payload 5 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Checks SCSI registry key(s) 3 TTPs 4 IoCs

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

  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 7 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Drops file in Program Files directory
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2652
    • C:\Users\Admin\AppData\Local\Temp\tmp.exe
      "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:3932
      • C:\Windows\SysWOW64\diskpart.exe
        "C:\Windows\SysWOW64\diskpart.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:8
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\SysWOW64\cmd.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Drops file in Program Files directory
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4604
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Windows\SysWOW64\diskpart.exe"
        3⤵
          PID:4504
        • C:\Windows\SysWOW64\cmd.exe
          /c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
          3⤵
            PID:1624
          • C:\Windows\SysWOW64\cmd.exe
            /c copy "C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
            3⤵
              PID:2332
            • C:\Program Files\Mozilla Firefox\Firefox.exe
              "C:\Program Files\Mozilla Firefox\Firefox.exe"
              3⤵
                PID:1120
            • C:\Program Files (x86)\Xlvg8idh\p8cpcn6lqlwht.exe
              "C:\Program Files (x86)\Xlvg8idh\p8cpcn6lqlwht.exe"
              2⤵
              • Executes dropped EXE
              PID:1556
          • C:\Windows\System32\vdsldr.exe
            C:\Windows\System32\vdsldr.exe -Embedding
            1⤵
              PID:2236
            • C:\Windows\System32\vds.exe
              C:\Windows\System32\vds.exe
              1⤵
              • Checks SCSI registry key(s)
              PID:2128

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\Program Files (x86)\Xlvg8idh\p8cpcn6lqlwht.exe

              Filesize

              147KB

              MD5

              ec7124df3499be00b1dd20ea67c12d74

              SHA1

              773ca17489d9178e741872b45fec99cbeb447457

              SHA256

              57024a75f21761cafafc76561e2317e425e464e38ad79cd02b399f5ef305713f

              SHA512

              a68f03256ae0bfb8463b2e1e7b1fdc9312c6506a7e1b8fcb825ed3b6e998faad667522754a753a2aba9d1f0bbb9ccfbdb97df0f65faaefd757db88c36d0e7433

            • C:\Program Files (x86)\Xlvg8idh\p8cpcn6lqlwht.exe

              Filesize

              147KB

              MD5

              ec7124df3499be00b1dd20ea67c12d74

              SHA1

              773ca17489d9178e741872b45fec99cbeb447457

              SHA256

              57024a75f21761cafafc76561e2317e425e464e38ad79cd02b399f5ef305713f

              SHA512

              a68f03256ae0bfb8463b2e1e7b1fdc9312c6506a7e1b8fcb825ed3b6e998faad667522754a753a2aba9d1f0bbb9ccfbdb97df0f65faaefd757db88c36d0e7433

            • C:\Users\Admin\AppData\Local\Temp\DB1

              Filesize

              40KB

              MD5

              b608d407fc15adea97c26936bc6f03f6

              SHA1

              953e7420801c76393902c0d6bb56148947e41571

              SHA256

              b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf

              SHA512

              cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

            • C:\Users\Admin\AppData\Local\Temp\DB1

              Filesize

              48KB

              MD5

              349e6eb110e34a08924d92f6b334801d

              SHA1

              bdfb289daff51890cc71697b6322aa4b35ec9169

              SHA256

              c9fd7be4579e4aa942e8c2b44ab10115fa6c2fe6afd0c584865413d9d53f3b2a

              SHA512

              2a635b815a5e117ea181ee79305ee1baf591459427acc5210d8c6c7e447be3513ead871c605eb3d32e4ab4111b2a335f26520d0ef8c1245a4af44e1faec44574

            • memory/8-137-0x0000000000C10000-0x0000000000C21000-memory.dmp

              Filesize

              68KB

            • memory/8-136-0x0000000001090000-0x00000000013DA000-memory.dmp

              Filesize

              3.3MB

            • memory/8-135-0x0000000000400000-0x000000000042C000-memory.dmp

              Filesize

              176KB

            • memory/8-140-0x0000000001070000-0x0000000001081000-memory.dmp

              Filesize

              68KB

            • memory/8-133-0x0000000000400000-0x000000000042C000-memory.dmp

              Filesize

              176KB

            • memory/8-143-0x0000000000400000-0x000000000042C000-memory.dmp

              Filesize

              176KB

            • memory/8-132-0x0000000000000000-mapping.dmp

            • memory/1556-156-0x0000000000000000-mapping.dmp

            • memory/1624-152-0x0000000000000000-mapping.dmp

            • memory/2332-154-0x0000000000000000-mapping.dmp

            • memory/2652-150-0x00000000086A0000-0x0000000008766000-memory.dmp

              Filesize

              792KB

            • memory/2652-151-0x00000000086A0000-0x0000000008766000-memory.dmp

              Filesize

              792KB

            • memory/2652-141-0x0000000008520000-0x0000000008694000-memory.dmp

              Filesize

              1.5MB

            • memory/2652-138-0x0000000008420000-0x0000000008518000-memory.dmp

              Filesize

              992KB

            • memory/3932-130-0x0000000000790000-0x0000000000932000-memory.dmp

              Filesize

              1.6MB

            • memory/3932-131-0x00000000052B0000-0x000000000534C000-memory.dmp

              Filesize

              624KB

            • memory/4504-146-0x0000000000000000-mapping.dmp

            • memory/4604-147-0x0000000001B70000-0x0000000001EBA000-memory.dmp

              Filesize

              3.3MB

            • memory/4604-148-0x00000000019A0000-0x0000000001A30000-memory.dmp

              Filesize

              576KB

            • memory/4604-149-0x0000000000F40000-0x0000000000F6B000-memory.dmp

              Filesize

              172KB

            • memory/4604-145-0x0000000000F40000-0x0000000000F6B000-memory.dmp

              Filesize

              172KB

            • memory/4604-144-0x0000000000FA0000-0x0000000000FFA000-memory.dmp

              Filesize

              360KB

            • memory/4604-142-0x0000000000000000-mapping.dmp