Analysis

  • max time kernel
    143s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22/12/2023, 05:06

General

  • Target

    6f7926cc9ea0f0e384d4b21d1d323f82.exe

  • Size

    3.2MB

  • MD5

    6f7926cc9ea0f0e384d4b21d1d323f82

  • SHA1

    230cdfcb57c6c009477ab7bc638c41537e5a5724

  • SHA256

    a61c2f58b78fc1ba912952cd7264ecab8a71d20460ddff42982dd7a36d7c3a44

  • SHA512

    be38a8f22864ee35428697533b1e93b48aa973e2cf17a610bb031843b71876bbe515f044a21ca706d398fc2529f8ab0f06482ba2142f096167fad8638c4bb772

  • SSDEEP

    98304:FtHe+stuzdE+4cZcakcomv7X0D4baxa8cakcn3HWaf7WqOfcakcomv7X0D4baxa/:Fle+Kue+DZdllYF/dlnm8IfdllYF/dlO

Score
7/10
upx

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Program crash 18 IoCs
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6f7926cc9ea0f0e384d4b21d1d323f82.exe
    "C:\Users\Admin\AppData\Local\Temp\6f7926cc9ea0f0e384d4b21d1d323f82.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2988
    • C:\Users\Admin\AppData\Local\Temp\6f7926cc9ea0f0e384d4b21d1d323f82.exe
      C:\Users\Admin\AppData\Local\Temp\6f7926cc9ea0f0e384d4b21d1d323f82.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:3572
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\6f7926cc9ea0f0e384d4b21d1d323f82.exe" /TN Wxpz1JCma418 /F
        3⤵
        • Creates scheduled task(s)
        PID:4812
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN Wxpz1JCma418 > C:\Users\Admin\AppData\Local\Temp\RVLVn.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2536
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN Wxpz1JCma418
          4⤵
            PID:4100
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3572 -s 616
          3⤵
          • Program crash
          PID:3368
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3572 -s 608
          3⤵
          • Program crash
          PID:932
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3572 -s 716
          3⤵
          • Program crash
          PID:4448
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3572 -s 720
          3⤵
          • Program crash
          PID:4300
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3572 -s 800
          3⤵
          • Program crash
          PID:4564
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3572 -s 808
          3⤵
          • Program crash
          PID:4364
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3572 -s 1464
          3⤵
          • Program crash
          PID:2740
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3572 -s 1928
          3⤵
          • Program crash
          PID:4408
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3572 -s 2144
          3⤵
          • Program crash
          PID:2764
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3572 -s 1872
          3⤵
          • Program crash
          PID:1252
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3572 -s 1932
          3⤵
          • Program crash
          PID:644
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3572 -s 2220
          3⤵
          • Program crash
          PID:4812
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3572 -s 1924
          3⤵
          • Program crash
          PID:4100
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3572 -s 2276
          3⤵
          • Program crash
          PID:2504
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3572 -s 2284
          3⤵
          • Program crash
          PID:2520
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3572 -s 2276
          3⤵
          • Program crash
          PID:932
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3572 -s 2192
          3⤵
          • Program crash
          PID:3564
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3572 -s 712
          3⤵
          • Program crash
          PID:764
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3572 -ip 3572
      1⤵
        PID:2108
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3572 -ip 3572
        1⤵
          PID:1108
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3572 -ip 3572
          1⤵
            PID:5056
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3572 -ip 3572
            1⤵
              PID:336
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3572 -ip 3572
              1⤵
                PID:2660
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3572 -ip 3572
                1⤵
                  PID:3700
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3572 -ip 3572
                  1⤵
                    PID:4624
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 3572 -ip 3572
                    1⤵
                      PID:2348
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 3572 -ip 3572
                      1⤵
                        PID:4124
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3572 -ip 3572
                        1⤵
                          PID:1728
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3572 -ip 3572
                          1⤵
                            PID:4916
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 3572 -ip 3572
                            1⤵
                              PID:3828
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 560 -p 3572 -ip 3572
                              1⤵
                                PID:1860
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3572 -ip 3572
                                1⤵
                                  PID:3504
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3572 -ip 3572
                                  1⤵
                                    PID:4920
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3572 -ip 3572
                                    1⤵
                                      PID:3480
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 3572 -ip 3572
                                      1⤵
                                        PID:4932
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 3572 -ip 3572
                                        1⤵
                                          PID:1468

                                        Network

                                              MITRE ATT&CK Enterprise v15

                                              Replay Monitor

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                                              Downloads

                                              • C:\Users\Admin\AppData\Local\Temp\6f7926cc9ea0f0e384d4b21d1d323f82.exe

                                                Filesize

                                                177KB

                                                MD5

                                                2e99182c2df8d66fcf1deac0c42c2480

                                                SHA1

                                                07c8364d9185629779a4a82ea1a887258617dcab

                                                SHA256

                                                13979f63979a17c9b6c5895bb3e9253dcd786dbe1ebb281aa5a8a830faf537fe

                                                SHA512

                                                3bbb06f7e9904b23c6b54b4ab929230e02c8e7802a115672aedc54aa85ae8487d059f01d464076924612d054e5dd951665d3a152dd4898fbf959fd68b50e5ca0

                                              • C:\Users\Admin\AppData\Local\Temp\RVLVn.xml

                                                Filesize

                                                1KB

                                                MD5

                                                89e56cb59ce3b9f11b25fe22fa5b2dc2

                                                SHA1

                                                cadd2a942f508300a94f21f785b1a129c482fba8

                                                SHA256

                                                685eeb591f8e0d362ad329075fe0c1f8465d2deb737ece868703f23b8816dadb

                                                SHA512

                                                06697b8bb0deb0c6029ffb3e3c6b98eeb7b6c04d9fe5554b308c511834ba71e676d9d02eda123c086fe0afc85b0cb1906dc14898416df56461f13889e719a881

                                              • memory/2988-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                                Filesize

                                                2.4MB

                                              • memory/2988-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                                Filesize

                                                428KB

                                              • memory/2988-5-0x0000000025020000-0x000000002509E000-memory.dmp

                                                Filesize

                                                504KB

                                              • memory/2988-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                                Filesize

                                                428KB

                                              • memory/3572-15-0x00000000016F0000-0x000000000176E000-memory.dmp

                                                Filesize

                                                504KB

                                              • memory/3572-18-0x0000000000400000-0x000000000065C000-memory.dmp

                                                Filesize

                                                2.4MB

                                              • memory/3572-22-0x00000000004B0000-0x000000000051B000-memory.dmp

                                                Filesize

                                                428KB

                                              • memory/3572-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                                Filesize

                                                364KB

                                              • memory/3572-41-0x0000000000400000-0x000000000065C000-memory.dmp

                                                Filesize

                                                2.4MB