Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    10-04-2022 15:18

General

  • Target

    VIREMENT.exe

  • Size

    244KB

  • MD5

    546ee858992bc35eaf00101cbb261471

  • SHA1

    003d0953cd88b93206b92563779f76df890d31be

  • SHA256

    264709538c4d306bfbf521a73d87b5753f38952b09f597ad405c934139a1082c

  • SHA512

    1f2a8af32136206f8786daf92a7e55653a597cc762e1d8625964f8a84d3d82a12504d4b49047a149478151c83da421e238aff76535f4a180c627c42d271ebe10

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

cbgo

Decoy

santesha.com

britneysbeautybar.com

sh-cy17.com

jeffcarveragency.com

3117111.com

sobrehosting.net

ddm123.xyz

toxcompliance.com

auditorydesigns.com

vliftfacial.com

ielhii.com

naameliss.com

ritualchariot.com

solchange.com

quatre-vingts.design

lawnmowermashine.com

braceletsstore.net

admappy.com

tollivercoltd.com

vaidix.com

Signatures

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • suricata: ET MALWARE FormBook CnC Checkin (GET)

    suricata: ET MALWARE FormBook CnC Checkin (GET)

  • Xloader Payload 3 IoCs
  • Executes dropped EXE 2 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 60 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of WriteProcessMemory
    PID:3024
    • C:\Users\Admin\AppData\Local\Temp\VIREMENT.exe
      "C:\Users\Admin\AppData\Local\Temp\VIREMENT.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1660
      • C:\Users\Admin\AppData\Local\Temp\rybhocttcn.exe
        C:\Users\Admin\AppData\Local\Temp\rybhocttcn.exe C:\Users\Admin\AppData\Local\Temp\iuddhrt
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2112
        • C:\Users\Admin\AppData\Local\Temp\rybhocttcn.exe
          C:\Users\Admin\AppData\Local\Temp\rybhocttcn.exe C:\Users\Admin\AppData\Local\Temp\iuddhrt
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: MapViewOfSection
          • Suspicious use of AdjustPrivilegeToken
          PID:2556
    • C:\Windows\SysWOW64\autofmt.exe
      "C:\Windows\SysWOW64\autofmt.exe"
      2⤵
        PID:4560
      • C:\Windows\SysWOW64\autofmt.exe
        "C:\Windows\SysWOW64\autofmt.exe"
        2⤵
          PID:4600
        • C:\Windows\SysWOW64\autofmt.exe
          "C:\Windows\SysWOW64\autofmt.exe"
          2⤵
            PID:4584
          • C:\Windows\SysWOW64\autofmt.exe
            "C:\Windows\SysWOW64\autofmt.exe"
            2⤵
              PID:1320
            • C:\Windows\SysWOW64\autofmt.exe
              "C:\Windows\SysWOW64\autofmt.exe"
              2⤵
                PID:4632
              • C:\Windows\SysWOW64\autofmt.exe
                "C:\Windows\SysWOW64\autofmt.exe"
                2⤵
                  PID:4520
                • C:\Windows\SysWOW64\control.exe
                  "C:\Windows\SysWOW64\control.exe"
                  2⤵
                  • Suspicious use of SetThreadContext
                  • Suspicious behavior: EnumeratesProcesses
                  • Suspicious behavior: MapViewOfSection
                  • Suspicious use of AdjustPrivilegeToken
                  • Suspicious use of WriteProcessMemory
                  PID:4460
                  • C:\Windows\SysWOW64\cmd.exe
                    /c del "C:\Users\Admin\AppData\Local\Temp\rybhocttcn.exe"
                    3⤵
                      PID:4060

                Network

                MITRE ATT&CK Matrix ATT&CK v6

                Discovery

                System Information Discovery

                1
                T1082

                Replay Monitor

                Loading Replay Monitor...

                Downloads

                • C:\Users\Admin\AppData\Local\Temp\9wei4rtongh1k80
                  Filesize

                  214KB

                  MD5

                  0660ddb1a12ffd13ed866ac74452867e

                  SHA1

                  ff8d9d5b97d4a4d7892f0a2deacd4857cf3d5a87

                  SHA256

                  13e305181e838369cfd34fb44bef4870375799c02f040b0668a194390ad787c5

                  SHA512

                  56c4697e4ea9cc817d479d34e9f366bd26f67f6c8cbddbf12c6c62afe339c7eb844870d4dc26e7b519626fc2b2d73fb31a7e5a4eb52d4cc2a42a132a49d3f59a

                • C:\Users\Admin\AppData\Local\Temp\iuddhrt
                  Filesize

                  4KB

                  MD5

                  96f41ec942e86ad8be144109d2d78c07

                  SHA1

                  8bf0832913fee0c280e3e1d1c784434e2bf281e1

                  SHA256

                  c14b2ec24e50483148c1eb42e32a40fe2b3d543082605c1aafbc51437c9a716d

                  SHA512

                  7e865127473a8a8dbf84d2eb02774f8ac2d4babe61842d61222f2950700ae3d47b3c0bdca4d37ad0bb8a64420b8abbd188f867375afe892136b683c9b4a5173b

                • C:\Users\Admin\AppData\Local\Temp\rybhocttcn.exe
                  Filesize

                  6KB

                  MD5

                  48d6b64e066cb9c2af94223327e4f4fa

                  SHA1

                  ac744bbed52f912a030cbe4ff1820fc3dc59b72c

                  SHA256

                  d82de44e081d8a084d0d0928c740117a254bbfd62b1a37181ec784776c2b3129

                  SHA512

                  57e395594da0658ebf09e816a8403ad48dd17450e3c494568f1f6be1e785c26b1ed3899bc84571d725f4637d4bc65907c27af5deb591bbc6ac51424165fd0e3a

                • C:\Users\Admin\AppData\Local\Temp\rybhocttcn.exe
                  Filesize

                  6KB

                  MD5

                  48d6b64e066cb9c2af94223327e4f4fa

                  SHA1

                  ac744bbed52f912a030cbe4ff1820fc3dc59b72c

                  SHA256

                  d82de44e081d8a084d0d0928c740117a254bbfd62b1a37181ec784776c2b3129

                  SHA512

                  57e395594da0658ebf09e816a8403ad48dd17450e3c494568f1f6be1e785c26b1ed3899bc84571d725f4637d4bc65907c27af5deb591bbc6ac51424165fd0e3a

                • C:\Users\Admin\AppData\Local\Temp\rybhocttcn.exe
                  Filesize

                  6KB

                  MD5

                  48d6b64e066cb9c2af94223327e4f4fa

                  SHA1

                  ac744bbed52f912a030cbe4ff1820fc3dc59b72c

                  SHA256

                  d82de44e081d8a084d0d0928c740117a254bbfd62b1a37181ec784776c2b3129

                  SHA512

                  57e395594da0658ebf09e816a8403ad48dd17450e3c494568f1f6be1e785c26b1ed3899bc84571d725f4637d4bc65907c27af5deb591bbc6ac51424165fd0e3a

                • memory/2112-130-0x0000000000000000-mapping.dmp
                • memory/2112-136-0x0000000000B00000-0x0000000000B22000-memory.dmp
                  Filesize

                  136KB

                • memory/2556-141-0x0000000001360000-0x00000000016AA000-memory.dmp
                  Filesize

                  3.3MB

                • memory/2556-145-0x0000000003110000-0x0000000003121000-memory.dmp
                  Filesize

                  68KB

                • memory/2556-140-0x0000000000400000-0x0000000000429000-memory.dmp
                  Filesize

                  164KB

                • memory/2556-135-0x0000000000000000-mapping.dmp
                • memory/2556-142-0x0000000001300000-0x0000000001311000-memory.dmp
                  Filesize

                  68KB

                • memory/2556-137-0x0000000000400000-0x0000000000429000-memory.dmp
                  Filesize

                  164KB

                • memory/3024-146-0x0000000008980000-0x0000000008A9D000-memory.dmp
                  Filesize

                  1.1MB

                • memory/3024-143-0x0000000008D30000-0x0000000008ECB000-memory.dmp
                  Filesize

                  1.6MB

                • memory/3024-153-0x0000000001280000-0x0000000001314000-memory.dmp
                  Filesize

                  592KB

                • memory/4060-150-0x0000000000000000-mapping.dmp
                • memory/4460-147-0x0000000000000000-mapping.dmp
                • memory/4460-148-0x00000000008C0000-0x00000000008E7000-memory.dmp
                  Filesize

                  156KB

                • memory/4460-149-0x0000000000C20000-0x0000000000C49000-memory.dmp
                  Filesize

                  164KB

                • memory/4460-151-0x0000000002AE0000-0x0000000002E2A000-memory.dmp
                  Filesize

                  3.3MB

                • memory/4460-152-0x0000000002900000-0x0000000002990000-memory.dmp
                  Filesize

                  576KB