Analysis

  • max time kernel
    150s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/01/2024, 05:50

General

  • Target

    5a72fbcb0606a056bba59fd276d356b6.exe

  • Size

    1.6MB

  • MD5

    5a72fbcb0606a056bba59fd276d356b6

  • SHA1

    fe62ec90043fb7e5778b529be9fa72ba54418e49

  • SHA256

    015cce215f5f10a30221580ce52aef40f926feb519e75a313dfd117053bfd1b3

  • SHA512

    929f1d63802c989ef59624b25e0edbff89bbaf356308b8ba2e5bf5f291e2aaa8df4821e41c29af49c3c0c0b43ea0b46168b480746e4ba020b2441c96b93c6020

  • SSDEEP

    49152:58PodLAbxrdr50+N8UGvCcakLz0o1KI1Wn/nKmcakLz0O:58PMAbxZru+N8NacakcQK48/nBcakcO

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 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\5a72fbcb0606a056bba59fd276d356b6.exe
    "C:\Users\Admin\AppData\Local\Temp\5a72fbcb0606a056bba59fd276d356b6.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1800
    • C:\Users\Admin\AppData\Local\Temp\5a72fbcb0606a056bba59fd276d356b6.exe
      C:\Users\Admin\AppData\Local\Temp\5a72fbcb0606a056bba59fd276d356b6.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:3088
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\5a72fbcb0606a056bba59fd276d356b6.exe" /TN EftJtVnu5bdb /F
        3⤵
        • Creates scheduled task(s)
        PID:3372
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN EftJtVnu5bdb > C:\Users\Admin\AppData\Local\Temp\nHfkZfEAK.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2844
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN EftJtVnu5bdb
          4⤵
            PID:3376
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3088 -s 604
          3⤵
          • Program crash
          PID:1524
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3088 -s 628
          3⤵
          • Program crash
          PID:1836
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3088 -s 636
          3⤵
          • Program crash
          PID:4764
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3088 -s 716
          3⤵
          • Program crash
          PID:2580
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3088 -s 716
          3⤵
          • Program crash
          PID:2892
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3088 -s 736
          3⤵
          • Program crash
          PID:4348
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3088 -s 1468
          3⤵
          • Program crash
          PID:2964
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3088 -s 1940
          3⤵
          • Program crash
          PID:2416
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3088 -s 2144
          3⤵
          • Program crash
          PID:748
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3088 -s 1876
          3⤵
          • Program crash
          PID:4420
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3088 -s 2132
          3⤵
          • Program crash
          PID:3376
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3088 -s 1956
          3⤵
          • Program crash
          PID:1076
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3088 -s 2120
          3⤵
          • Program crash
          PID:3248
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3088 -s 2124
          3⤵
          • Program crash
          PID:3848
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3088 -s 2132
          3⤵
          • Program crash
          PID:896
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3088 -s 2124
          3⤵
          • Program crash
          PID:2300
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3088 -s 2160
          3⤵
          • Program crash
          PID:716
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3088 -s 624
          3⤵
          • Program crash
          PID:1216
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3088 -ip 3088
      1⤵
        PID:2832
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3088 -ip 3088
        1⤵
          PID:3092
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3088 -ip 3088
          1⤵
            PID:1232
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3088 -ip 3088
            1⤵
              PID:5024
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3088 -ip 3088
              1⤵
                PID:3676
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 3088 -ip 3088
                1⤵
                  PID:796
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 516 -p 3088 -ip 3088
                  1⤵
                    PID:1964
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3088 -ip 3088
                    1⤵
                      PID:3488
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3088 -ip 3088
                      1⤵
                        PID:4916
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3088 -ip 3088
                        1⤵
                          PID:4656
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3088 -ip 3088
                          1⤵
                            PID:212
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 3088 -ip 3088
                            1⤵
                              PID:1108
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 3088 -ip 3088
                              1⤵
                                PID:4648
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3088 -ip 3088
                                1⤵
                                  PID:1836
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 3088 -ip 3088
                                  1⤵
                                    PID:1796
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 3088 -ip 3088
                                    1⤵
                                      PID:3064
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 508 -p 3088 -ip 3088
                                      1⤵
                                        PID:3520
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 3088 -ip 3088
                                        1⤵
                                          PID:4936

                                        Network

                                              MITRE ATT&CK Enterprise v15

                                              Replay Monitor

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                                              Downloads

                                              • C:\Users\Admin\AppData\Local\Temp\5a72fbcb0606a056bba59fd276d356b6.exe

                                                Filesize

                                                1.6MB

                                                MD5

                                                9bdca5ed513c3008e5232333129294ef

                                                SHA1

                                                343cd36e89d6aaae66aad1db540fef982783576b

                                                SHA256

                                                9208896f4d065b230f7e259fdacdd4ad84462e4141b478fe60f94f2c501ffb04

                                                SHA512

                                                07f6329f9fbc15371f89b9ebbb9265fc39d127d90d8fa8d2d01cceaa84f9753b18977fb183705b6150f3fbbfffdc63786d18bd73ec06b96d773d87fbfdbfcb82

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

                                                Filesize

                                                1KB

                                                MD5

                                                84b54961ae193875f53623b66ac48b28

                                                SHA1

                                                271574eb98514691fad429354c9098d0896af8ef

                                                SHA256

                                                5f7b0fcf63a94a664e215c8d12a7b492aef6844bf413cd908b0e8882e5b65673

                                                SHA512

                                                b3aeba94d7a22b85710d86ae298105b382ab87784e3314177eae972b8cd4b04a35b660e7388eba227d67b093bf9086a9457beac592ef7ddd1a4adf1a9a64c884

                                              • memory/1800-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                                Filesize

                                                2.4MB

                                              • memory/1800-2-0x0000000025030000-0x00000000250AE000-memory.dmp

                                                Filesize

                                                504KB

                                              • memory/1800-1-0x0000000000400000-0x000000000046B000-memory.dmp

                                                Filesize

                                                428KB

                                              • memory/1800-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                                Filesize

                                                428KB

                                              • memory/3088-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                                Filesize

                                                2.4MB

                                              • memory/3088-16-0x0000000001730000-0x00000000017AE000-memory.dmp

                                                Filesize

                                                504KB

                                              • memory/3088-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                                Filesize

                                                364KB

                                              • memory/3088-22-0x00000000004B0000-0x000000000051B000-memory.dmp

                                                Filesize

                                                428KB

                                              • memory/3088-41-0x0000000000400000-0x000000000065C000-memory.dmp

                                                Filesize

                                                2.4MB