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
    14/02/2024, 00:31

General

  • Target

    9a51d300d81c187e1a71b2041cdef152.exe

  • Size

    3.0MB

  • MD5

    9a51d300d81c187e1a71b2041cdef152

  • SHA1

    904100073805d3be924777e1aa505216bc98781a

  • SHA256

    b843162c310beff0f178230eb0bb2485f127c78372f5dbd5b9328596f9936f94

  • SHA512

    c99da8d53ed01171fbbd605f3a5a3b757506575eb763035e613375b22fe866cbfe9e4ba309f52f9b9726bd46df0454fe7c179bce81be52b6a0fa25631e2a7a2e

  • SSDEEP

    49152:z+kvU5NX+Wc7KdcakL6WZDtQXWry7JkBZbkcakLoDjGDHRQlywSKcakL6WZDtQXw:z9snu1mdcakOWZDtQXWry7mBZbkcaksi

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 1 IoCs
  • 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\9a51d300d81c187e1a71b2041cdef152.exe
    "C:\Users\Admin\AppData\Local\Temp\9a51d300d81c187e1a71b2041cdef152.exe"
    1⤵
    • Suspicious behavior: RenamesItself
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:3328
    • C:\Users\Admin\AppData\Local\Temp\9a51d300d81c187e1a71b2041cdef152.exe
      C:\Users\Admin\AppData\Local\Temp\9a51d300d81c187e1a71b2041cdef152.exe
      2⤵
      • Deletes itself
      • Executes dropped EXE
      • Modifies system certificate store
      • Suspicious use of UnmapMainImage
      • Suspicious use of WriteProcessMemory
      PID:1492
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks.exe /CREATE /RL HIGHEST /SC ONLOGON /TR "C:\Users\Admin\AppData\Local\Temp\9a51d300d81c187e1a71b2041cdef152.exe" /TN EftJtVnu5bdb /F
        3⤵
        • Creates scheduled task(s)
        PID:2988
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c schtasks.exe /Query /XML /TN EftJtVnu5bdb > C:\Users\Admin\AppData\Local\Temp\hEsBLW.xml
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:4620
        • C:\Windows\SysWOW64\schtasks.exe
          schtasks.exe /Query /XML /TN EftJtVnu5bdb
          4⤵
            PID:3992
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 616
          3⤵
          • Program crash
          PID:3536
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 648
          3⤵
          • Program crash
          PID:4200
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 736
          3⤵
          • Program crash
          PID:4524
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 776
          3⤵
          • Program crash
          PID:1916
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 776
          3⤵
          • Program crash
          PID:4128
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 772
          3⤵
          • Program crash
          PID:5008
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 1472
          3⤵
          • Program crash
          PID:1684
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 1480
          3⤵
          • Program crash
          PID:1160
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 2144
          3⤵
          • Program crash
          PID:2788
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 1932
          3⤵
          • Program crash
          PID:4612
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 1896
          3⤵
          • Program crash
          PID:3956
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 2128
          3⤵
          • Program crash
          PID:2776
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 1480
          3⤵
          • Program crash
          PID:3712
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 1960
          3⤵
          • Program crash
          PID:3092
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 1992
          3⤵
          • Program crash
          PID:4412
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 2176
          3⤵
          • Program crash
          PID:1240
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 1932
          3⤵
          • Program crash
          PID:2092
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 1492 -s 660
          3⤵
          • Program crash
          PID:2956
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 364 -p 1492 -ip 1492
      1⤵
        PID:2556
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 188 -p 1492 -ip 1492
        1⤵
          PID:4864
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1492 -ip 1492
          1⤵
            PID:5076
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 1492 -ip 1492
            1⤵
              PID:1436
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -pss -s 520 -p 1492 -ip 1492
              1⤵
                PID:868
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 1492 -ip 1492
                1⤵
                  PID:2260
                • C:\Windows\SysWOW64\WerFault.exe
                  C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1492 -ip 1492
                  1⤵
                    PID:5108
                  • C:\Windows\SysWOW64\WerFault.exe
                    C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 1492 -ip 1492
                    1⤵
                      PID:4660
                    • C:\Windows\SysWOW64\WerFault.exe
                      C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1492 -ip 1492
                      1⤵
                        PID:2376
                      • C:\Windows\SysWOW64\WerFault.exe
                        C:\Windows\SysWOW64\WerFault.exe -pss -s 480 -p 1492 -ip 1492
                        1⤵
                          PID:4268
                        • C:\Windows\SysWOW64\WerFault.exe
                          C:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 1492 -ip 1492
                          1⤵
                            PID:3556
                          • C:\Windows\SysWOW64\WerFault.exe
                            C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1492 -ip 1492
                            1⤵
                              PID:3760
                            • C:\Windows\SysWOW64\WerFault.exe
                              C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 1492 -ip 1492
                              1⤵
                                PID:2524
                              • C:\Windows\SysWOW64\WerFault.exe
                                C:\Windows\SysWOW64\WerFault.exe -pss -s 524 -p 1492 -ip 1492
                                1⤵
                                  PID:2660
                                • C:\Windows\SysWOW64\WerFault.exe
                                  C:\Windows\SysWOW64\WerFault.exe -pss -s 540 -p 1492 -ip 1492
                                  1⤵
                                    PID:3644
                                  • C:\Windows\SysWOW64\WerFault.exe
                                    C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1492 -ip 1492
                                    1⤵
                                      PID:3244
                                    • C:\Windows\SysWOW64\WerFault.exe
                                      C:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 1492 -ip 1492
                                      1⤵
                                        PID:1260
                                      • C:\Windows\SysWOW64\WerFault.exe
                                        C:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 1492 -ip 1492
                                        1⤵
                                          PID:3700

                                        Network

                                        MITRE ATT&CK Enterprise v15

                                        Replay Monitor

                                        Loading Replay Monitor...

                                        Downloads

                                        • C:\Users\Admin\AppData\Local\Temp\9a51d300d81c187e1a71b2041cdef152.exe

                                          Filesize

                                          512KB

                                          MD5

                                          99fc1e161715ffd566599c826d864f70

                                          SHA1

                                          3f1994ba062fdd7652c344544595e2922a590477

                                          SHA256

                                          058627166a34e42f8ddaf60d4908efd02871d25a0ab52f18886f1457e5a92b6f

                                          SHA512

                                          164442cd9ef6efa80a0a1eb18cc16b5409ca794bffb977555e5a90ef8e68aec3ff1940744ff8e3ca69b9623c5036ac0c3b6c037bc2a7463604848f3cb240e81a

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

                                          Filesize

                                          1KB

                                          MD5

                                          67d5837dcf641ca2d86c31c1580c13ed

                                          SHA1

                                          c6f8256d58b56dccca475e619b501692f9c422fd

                                          SHA256

                                          cd95727d5acd6b01219d9cf2000511772f75896793d3b2a5757a0c02f9cddabd

                                          SHA512

                                          7e992704a1f2fa40bb916febd4bc792a00baa5c2f9cab350107def4bb6354a5ebd83cc8a4ab69167a56e268f650b4aba4f3f4789f1fa988690693953d33a137d

                                        • memory/1492-14-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/1492-17-0x0000000024FE0000-0x000000002505E000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/1492-22-0x0000000000470000-0x00000000004DB000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/1492-23-0x0000000000400000-0x000000000045B000-memory.dmp

                                          Filesize

                                          364KB

                                        • memory/1492-41-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/3328-0-0x0000000000400000-0x000000000065C000-memory.dmp

                                          Filesize

                                          2.4MB

                                        • memory/3328-1-0x0000000001730000-0x00000000017AE000-memory.dmp

                                          Filesize

                                          504KB

                                        • memory/3328-2-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB

                                        • memory/3328-13-0x0000000000400000-0x000000000046B000-memory.dmp

                                          Filesize

                                          428KB