Analysis

  • max time kernel
    147s
  • max time network
    162s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-01-2024 21:14

General

  • Target

    41ed7f50d560fd59470daff728c3d7d7.exe

  • Size

    1.6MB

  • MD5

    41ed7f50d560fd59470daff728c3d7d7

  • SHA1

    5f4545111bb14f10e1138812a81aef3211f82fd7

  • SHA256

    05b48a098bc38e16ea3725d1a90e4ff2c3341d786aac7d2b66927e0255a96d29

  • SHA512

    82bd270b8666fdb1d5fce3645ee08f0f90967f69a47282022b717b1139343f7a48ec2ebd206bee1b1e08e7e5d94d6847ab6e032052e8f16094e2590dc5a82f5d

  • SSDEEP

    49152:Dfsz1ychcrWpcakLz0HBDpjg8632wPcakLz0O:7sz1ycyrWpcakchS87ccakcO

Score
7/10
upx

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • UPX packed file 3 IoCs

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

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Program crash 20 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\41ed7f50d560fd59470daff728c3d7d7.exe
    "C:\Users\Admin\AppData\Local\Temp\41ed7f50d560fd59470daff728c3d7d7.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1280
    • C:\Users\Admin\AppData\Local\Temp\41ed7f50d560fd59470daff728c3d7d7.exe
      C:\Users\Admin\AppData\Local\Temp\41ed7f50d560fd59470daff728c3d7d7.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:1340
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\41ed7f50d560fd59470daff728c3d7d7.exe" /TN aMYATtOZda0c /F
        3⤵
        • Creates scheduled task(s)
        PID:3436
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN aMYATtOZda0c > C:\Users\Admin\AppData\Local\Temp\HD1uk6.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:3712
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN aMYATtOZda0c
          4⤵
            PID:1176
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1340 -s 616
          3⤵
          • Program crash
          PID:1288
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1340 -s 652
          3⤵
          • Program crash
          PID:4088
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1340 -s 660
          3⤵
          • Program crash
          PID:3748
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1340 -s 768
          3⤵
          • Program crash
          PID:4980
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1340 -s 820
          3⤵
          • Program crash
          PID:1156
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1340 -s 828
          3⤵
          • Program crash
          PID:5060
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1340 -s 1472
          3⤵
          • Program crash
          PID:2596
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1340 -s 1888
          3⤵
          • Program crash
          PID:4172
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1340 -s 1956
          3⤵
          • Program crash
          PID:888
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1340 -s 1972
          3⤵
          • Program crash
          PID:1564
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1340 -s 1960
          3⤵
          • Program crash
          PID:672
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1340 -s 2000
          3⤵
          • Program crash
          PID:180
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1340 -s 1992
          3⤵
          • Program crash
          PID:3180
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1340 -s 2200
          3⤵
          • Program crash
          PID:4972
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1340 -s 2192
          3⤵
          • Program crash
          PID:2820
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1340 -s 1964
          3⤵
          • Program crash
          PID:2440
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1340 -s 2180
          3⤵
          • Program crash
          PID:3336
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1340 -s 2128
          3⤵
          • Program crash
          PID:3848
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1340 -s 628
          3⤵
          • Program crash
          PID:2756
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1340 -s 944
          3⤵
          • Program crash
          PID:4152
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 1340 -ip 1340
      1⤵
        PID:2304
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 1340 -ip 1340
        1⤵
          PID:704
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 1340 -ip 1340
          1⤵
            PID:2816
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1340 -ip 1340
            1⤵
              PID:2424
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 548 -p 1340 -ip 1340
              1⤵
                PID:660
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 1340 -ip 1340
                1⤵
                  PID:4972
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 544 -p 1340 -ip 1340
                  1⤵
                    PID:5084
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1340 -ip 1340
                    1⤵
                      PID:4416
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 1340 -ip 1340
                      1⤵
                        PID:4112
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1340 -ip 1340
                        1⤵
                          PID:1992
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1340 -ip 1340
                          1⤵
                            PID:1660
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 552 -p 1340 -ip 1340
                            1⤵
                              PID:4908
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 564 -p 1340 -ip 1340
                              1⤵
                                PID:4348
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 1340 -ip 1340
                                1⤵
                                  PID:1156
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1340 -ip 1340
                                  1⤵
                                    PID:4428
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 396 -p 1340 -ip 1340
                                    1⤵
                                      PID:3276
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 476 -p 1340 -ip 1340
                                      1⤵
                                        PID:4528
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 584 -p 1340 -ip 1340
                                        1⤵
                                          PID:1840
                                        • C:\Windows\SysWOW64\WerFault.exe
                                          C:\Windows\SysWOW64\WerFault.exe -pss -s 588 -p 1340 -ip 1340
                                          1⤵
                                            PID:1416
                                          • C:\Windows\SysWOW64\WerFault.exe
                                            C:\Windows\SysWOW64\WerFault.exe -pss -s 584 -p 1340 -ip 1340
                                            1⤵
                                              PID:5004

                                            Network

                                            MITRE ATT&CK Enterprise v15

                                            Replay Monitor

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                                            Downloads

                                            • C:\Users\Admin\AppData\Local\Temp\41ed7f50d560fd59470daff728c3d7d7.exe

                                              Filesize

                                              1.6MB

                                              MD5

                                              cf9d1d73f9755885b03734c539e503f7

                                              SHA1

                                              c69e365900f3651b8ce536dd75fc96e1d33ac014

                                              SHA256

                                              71ecc84db45e1c81090927018ccb0d252d429596d20fa0a3104ed277f14185e9

                                              SHA512

                                              d11f56ccbfa867289a153bc0633e485f0ad1e1c6bd9bf768f5580e8454da97edd971842ca85c70477e0af9c1fb8424e1675b23ad87f4a0f72d7828ae79933e28

                                            • C:\Users\Admin\AppData\Local\Temp\HD1uk6.xml

                                              Filesize

                                              1KB

                                              MD5

                                              58528d4d3f5cbd2ab30d473648afcbd0

                                              SHA1

                                              d2ba44545bc8869582cbe2feacb89a4cb88bc152

                                              SHA256

                                              2167ed4d23f1b65128468991724a1ada22c3afcaf5861ecdf86bcbdf3d826380

                                              SHA512

                                              b1f664af8559aeebd22d472cfaec7c74ac1960d4f96bf9aaf11130ed3d893f0f48c3d140358b599b26019dd35e1fc5ad79d17f795db7d25f567dda1446c56f5f

                                            • memory/1280-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                              Filesize

                                              2.4MB

                                            • memory/1280-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                              Filesize

                                              428KB

                                            • memory/1280-5-0x0000000025010000-0x000000002508E000-memory.dmp

                                              Filesize

                                              504KB

                                            • memory/1280-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                              Filesize

                                              428KB

                                            • memory/1340-16-0x00000000018C0000-0x000000000193E000-memory.dmp

                                              Filesize

                                              504KB

                                            • memory/1340-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                              Filesize

                                              2.4MB

                                            • memory/1340-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                              Filesize

                                              428KB

                                            • memory/1340-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                              Filesize

                                              364KB

                                            • memory/1340-32-0x0000000000400000-0x000000000065C000-memory.dmp

                                              Filesize

                                              2.4MB