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Analysis

  • max time kernel
    28s
  • max time network
    55s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    08/03/2024, 06:40

General

  • Target

    obfuscated.exe

  • Size

    38.3MB

  • MD5

    69a03bb48ee81a00bd8347bc420a0342

  • SHA1

    b16cb191f4a5f5b151d8fe9591e81657e1d0366c

  • SHA256

    a19ca27eb45dc2e8851f7c93097f92ac78f7971d43b4685d16c706e3c2524434

  • SHA512

    63c3e80a6848fedf368e0be17119a21cba2074b2e4f1c50d48fcc200537e0c07f2da809cf463001a99da2fc56206414d0ceef6bebf5e5c1d9e22c4b8968275c7

  • SSDEEP

    393216:d76L6otUitqtH7wHtXq2pt2jbOCacCFIK0fpP9HF4VW8yfcnVQx4urYsANulL7Na:d0LoCOn+2cs4urYDNulLBiue

Malware Config

Extracted

Family

xworm

Version

5.0

C2

91.92.245.248:7000

Mutex

8ZKAq60sTZYIePSv

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    proquota.exe

aes.plain

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Blocklisted process makes network request 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\obfuscated.exe
    "C:\Users\Admin\AppData\Local\Temp\obfuscated.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:3444
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -ExecutionPolicy Bypass -NoLogo -NoProfile
      2⤵
      • Blocklisted process makes network request
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4992
      • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
        "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\2yxglawr\2yxglawr.cmdline"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1576
        • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
          C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES7474.tmp" "c:\Users\Admin\AppData\Local\Temp\2yxglawr\CSC27E30C5B457445B8CBEE5EBF87EA.TMP"
          4⤵
            PID:4188
        • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
          "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\hbe4d3ri\hbe4d3ri.cmdline"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3588
          • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
            C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES7501.tmp" "c:\Users\Admin\AppData\Local\Temp\hbe4d3ri\CSC340522AB98324C64B766C294BA846EF7.TMP"
            4⤵
              PID:1920
          • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe
            "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\csc.exe" /noconfig /fullpaths @"C:\Users\Admin\AppData\Local\Temp\n3fwug2m\n3fwug2m.cmdline"
            3⤵
            • Suspicious use of WriteProcessMemory
            PID:3260
            • C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe
              C:\Windows\Microsoft.NET\Framework64\v4.0.30319\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RES756E.tmp" "c:\Users\Admin\AppData\Local\Temp\n3fwug2m\CSC468EAD44D2524E5AA340F44903B9BA9.TMP"
              4⤵
                PID:3412
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe'
              3⤵
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:4036
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'powershell.exe'
              3⤵
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:3216
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\proquota.exe'
              3⤵
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:3088
            • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
              "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'proquota.exe'
              3⤵
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of AdjustPrivilegeToken
              PID:972

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

          Filesize

          2KB

          MD5

          627073ee3ca9676911bee35548eff2b8

          SHA1

          4c4b68c65e2cab9864b51167d710aa29ebdcff2e

          SHA256

          85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c

          SHA512

          3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

          Filesize

          944B

          MD5

          4914eb0b2ff51bfa48484b5cc8454218

          SHA1

          6a7c3e36ce53b42497884d4c4a3bda438dd4374b

          SHA256

          7e510fc9344ef239ab1ab650dc95bb25fd44e2efba8b8246a3ac17880ee8b69e

          SHA512

          83ab35f622f4a5040ca5cb615a30f83bb0741449225f1fd1815b6923e225c28241d0c02d34f83f743349a5e57f84ca1c6f44016797a93d5985be41d11be79500

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

          Filesize

          944B

          MD5

          67a68c2b72b1e1c3e7ef431feacac89e

          SHA1

          c45aaf6dada965f54cf321f4479b6ff47b798c2f

          SHA256

          5f28392b70a00ed5242988005d175964f782dcac481078c3cd301607ece24779

          SHA512

          57b65f1975eb54ea501464c0f3571fc636f789f8f6b420c97c6a3f36486427ad1c3d7726ac7778df9f2f361ca923a7b976b1ec5bfb3f80067ecbfcd714709dc3

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

          Filesize

          944B

          MD5

          e3840d9bcedfe7017e49ee5d05bd1c46

          SHA1

          272620fb2605bd196df471d62db4b2d280a363c6

          SHA256

          3ac83e70415b9701ee71a4560232d7998e00c3db020fde669eb01b8821d2746f

          SHA512

          76adc88ab3930acc6b8b7668e2de797b8c00edcfc41660ee4485259c72a8adf162db62c2621ead5a9950f12bfe8a76ccab79d02fda11860afb0e217812cac376

        • C:\Users\Admin\AppData\Local\Temp\2yxglawr\2yxglawr.dll

          Filesize

          3KB

          MD5

          12cd5bd7a3508b96d35107343057b1c9

          SHA1

          f647c3d00af147301260d8460819a4b6c976853b

          SHA256

          78becffbbb1ca3fbd6bf167309ce70a16ba99d500a4d4aa8ba2dc17696cf21d7

          SHA512

          571781666ab117af68b24d9bc455ac1a4daaf92b0913f7bf3a9acb2f8f87a28c5fe7ff13a6def2048de79e99d54b1afbef6708c5fbf2f60cf2c84f204b4f24b8

        • C:\Users\Admin\AppData\Local\Temp\RES7474.tmp

          Filesize

          1KB

          MD5

          cc4ef5225fa3eaa78eca4ba05927a5be

          SHA1

          ffdf50e6a322b35f20dd6eaaea50f9b0ddf63232

          SHA256

          88a69d6a451cda8ce1d82363ec298eb7a058b9b5779048e2cffab3050be6123e

          SHA512

          46647150796359b1277759f47e040e2193dc954594f474e117d282e95b2278a269221255840c540a89730ca2b72e987be4d5cc0ecdb24cc44b48c89f84b033cb

        • C:\Users\Admin\AppData\Local\Temp\RES7501.tmp

          Filesize

          1KB

          MD5

          c2bd777404a5d51116cb5631f489c63b

          SHA1

          83be69499a4e3f6c12b85901b43d24f3a1a2c1e6

          SHA256

          095d398938506c0410b1a5d9275a310a4fcd4be9fdcbeda01eea8f4abc31632c

          SHA512

          ec0bc8d0b58fff238bd57b2ccdef40582539fdba00e628fa87269d697a24bd7ca075c617931227bd6e83418ad25e6f90ed98385e44813a3c62083882f3813243

        • C:\Users\Admin\AppData\Local\Temp\RES756E.tmp

          Filesize

          1KB

          MD5

          d8b26b9f364c658bbc9a435270b71d6f

          SHA1

          c13451b0da024a711b82ea3fdf5c4dc8cf7fbbaa

          SHA256

          3fe6ada7c30534744b32a8f4082d2184b56aabcd08a19d9c8ec2a404599df8f9

          SHA512

          d2912129090342290ce4d9120f45957647a12731448133159af3f0ad35f4d19f0c5e0e322f946b354cfb3cb59a78a3723a063164a82f5e48b2f72fe05a369641

        • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rq2sfnzy.qst.ps1

          Filesize

          60B

          MD5

          d17fe0a3f47be24a6453e9ef58c94641

          SHA1

          6ab83620379fc69f80c0242105ddffd7d98d5d9d

          SHA256

          96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

          SHA512

          5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

        • C:\Users\Admin\AppData\Local\Temp\hbe4d3ri\hbe4d3ri.dll

          Filesize

          3KB

          MD5

          6b81a0e0fcebc331d9e13bb9bce54440

          SHA1

          9569a207cc3ae4702e56e0dc878167f95cb0f932

          SHA256

          2bf45a37c2d077fd918356ac9939632bf7a619b7cd48c99d9db8ae33d3a06068

          SHA512

          43afe4bd1a0ac321342ec1646312c35757b7fdf9fe7f727fb4ab0ce9bc1a2be0ae04e2cabf5f3b89d523edf50800ae2dcac623d9e11c5a68e6e847f7b7961080

        • C:\Users\Admin\AppData\Local\Temp\n3fwug2m\n3fwug2m.dll

          Filesize

          3KB

          MD5

          5291c7ecd7911fe7a7cc260edffadcfb

          SHA1

          8657dec18c1f80f9e32b79856cf921b2ba84803a

          SHA256

          bd17e24196fdaa49a619bc6ca3c598c30ec87571a1e9d5852993b3bd78fedb8b

          SHA512

          8bd563bbd48a6ccd33f2e1470d1e27ae419a42d17c6f027efae3a0376987e1407a3da10d44d4138f738610b827bce57a43309d62a1ab3ad1e62845f4852414c4

        • \??\c:\Users\Admin\AppData\Local\Temp\2yxglawr\2yxglawr.0.cs

          Filesize

          264B

          MD5

          9d0f01551d19313082234ba8fd249c74

          SHA1

          292470353fb54ac4e4ab2468908930fb91696159

          SHA256

          38382d470f70733fc6bfe36bbfb53e2fbd5b1cca8a5c105203356c2cfaa61c7e

          SHA512

          6596948b9c6a9fb6101dbda3212188c70f752925d813bd64581aa6842820c1f69d387defee09a4e76749fe994ddea48025d7fd110789445b77db6cda5b34b958

        • \??\c:\Users\Admin\AppData\Local\Temp\2yxglawr\2yxglawr.cmdline

          Filesize

          369B

          MD5

          500c32a8b544f0b0151c2a5c1b9a3739

          SHA1

          12e05f6e99681bcf213f2d187a8e4b5ed4f0f3d3

          SHA256

          7941510bb248a89f1fe5af3e5e74fc6ab23a90e791d830fefff2f6913a9ce0cb

          SHA512

          e377c250698d3f40518cf9e5c4d96acfb95a1a58d3a0dbfe7202f685fc716c0564dc5f034a1b39628e1ed103f3a5d8e5c7cbd79c2323f34984c8a99af65ab747

        • \??\c:\Users\Admin\AppData\Local\Temp\2yxglawr\CSC27E30C5B457445B8CBEE5EBF87EA.TMP

          Filesize

          652B

          MD5

          118c80001c3809ef2003f7d18843d998

          SHA1

          dd8ecb4b10e182957e0e8d0dad58b9c3347ef69f

          SHA256

          87266b0857405aeaeb5cc541cbe0235ce75532eb7158353db25b2fb7230f1cd5

          SHA512

          ff0cfa903ff1c48646aa0048fe7505e3e0406c052a65fd740adb88bb126ed521d5577a248701be72382bc722bf71158132ac04bdc8d07227b6807857d263c85c

        • \??\c:\Users\Admin\AppData\Local\Temp\hbe4d3ri\CSC340522AB98324C64B766C294BA846EF7.TMP

          Filesize

          652B

          MD5

          edcbece8a69012acde0ff7aed4a04af4

          SHA1

          f821d75a71441a368e471939559c734fcafbf357

          SHA256

          34fb18ba9ef9be3cff3bdf5a89d42edf003b00ee519b59a2bf911c33e18c9203

          SHA512

          d6c92cc3c4e595d5be979bbebfc539bd9827accf010542c8e243ef5f635c75348f8a369aa0da5aae8dbf9f2a899587c786548ec891ca0c15ecb68dddd3f6be96

        • \??\c:\Users\Admin\AppData\Local\Temp\hbe4d3ri\hbe4d3ri.0.cs

          Filesize

          319B

          MD5

          118e2358315f8f7d2e2c77447e02ddb4

          SHA1

          b2074579d99b88ee378d6a2d7fcf02710e716c5b

          SHA256

          055679ce11f420946503e389078a5755a241393dea93c157a623c2446883d1d8

          SHA512

          46c2190d7b19cfc6b536d3822414f909efa83e774814d3e3128db901b0c51ce33f25d0cab5efdf7ad66ed4889f78d7200bf71f19a977ece709a9444f03255eec

        • \??\c:\Users\Admin\AppData\Local\Temp\hbe4d3ri\hbe4d3ri.cmdline

          Filesize

          369B

          MD5

          9f64b1b3067424b115f1d8eb99ceb748

          SHA1

          c8e2c10deed76fa49d5595812db170e030e3aabd

          SHA256

          65e32591228f2ad553a84c9aaf2b3838b3927d21947e0dbe8fc268640e9f260f

          SHA512

          46f9c3a11dce2fecb823b943f11586123e717cf216ac9088315ccb4a7614a0ba1cc9bb2a36bd2e7ccebed3ef25e43b08af3c05a7456a37e54215522dcbe201a0

        • \??\c:\Users\Admin\AppData\Local\Temp\n3fwug2m\CSC468EAD44D2524E5AA340F44903B9BA9.TMP

          Filesize

          652B

          MD5

          8a3e6ec9cbf508eafb757d0e582af9f0

          SHA1

          b54d046b6ea8190803e82c498fd4528a864cad42

          SHA256

          47e6b3694dc4825e27e235b6c929488636795b54d2e4f4002f9114e326c907f3

          SHA512

          baf99eb7c5fd604b7e6231a3b4313a4378632d731964bd59b3923757bbe35a27973223f14d8a99ed08a0a68cf90821e47366b1c8768cfcdd8ad2ca2f0ac53925

        • \??\c:\Users\Admin\AppData\Local\Temp\n3fwug2m\n3fwug2m.0.cs

          Filesize

          236B

          MD5

          f91af8ddec9960fc584163630b3bc2f2

          SHA1

          ece9bd77573dceb4743f5a0eb47c031e5b1f9ead

          SHA256

          6de19715aa47895a8c4bf9efc410517ccfa9519456b58a50203ada4b624853d4

          SHA512

          45e9e201a9e969522100d032675b6dfcb1f2c6a7869ace5d40251b58215987ee4d49d2607bb840b5e03b3df682fc39cf7ce9efa6c0c3cc01afb43a91a639bcd9

        • \??\c:\Users\Admin\AppData\Local\Temp\n3fwug2m\n3fwug2m.cmdline

          Filesize

          369B

          MD5

          88eb270fb9a29a6acb51a7d20e69c6c8

          SHA1

          23d5338c2de1ed1754ae10d357f5e711dd4a398e

          SHA256

          4f1713482e4a2e44ee2d1e8b95cd5b1418d5c5a6c380393d5de6792517bd0959

          SHA512

          f5fb530c817efc0960351a85a097c2c02de43198911da7a78e22c1d942b652e90ded362e25696b6b4847311fe33026f8521dbeaa1d3efe96e5ac5b0289ca141f

        • memory/972-115-0x0000021A880D0000-0x0000021A880E0000-memory.dmp

          Filesize

          64KB

        • memory/972-114-0x0000021A880D0000-0x0000021A880E0000-memory.dmp

          Filesize

          64KB

        • memory/972-113-0x00007FF874050000-0x00007FF874B12000-memory.dmp

          Filesize

          10.8MB

        • memory/972-125-0x0000021A880D0000-0x0000021A880E0000-memory.dmp

          Filesize

          64KB

        • memory/972-127-0x00007FF874050000-0x00007FF874B12000-memory.dmp

          Filesize

          10.8MB

        • memory/3088-108-0x0000023FB3BA0000-0x0000023FB3BB0000-memory.dmp

          Filesize

          64KB

        • memory/3088-105-0x0000023FB3BA0000-0x0000023FB3BB0000-memory.dmp

          Filesize

          64KB

        • memory/3088-112-0x00007FF874050000-0x00007FF874B12000-memory.dmp

          Filesize

          10.8MB

        • memory/3088-106-0x0000023FB3BA0000-0x0000023FB3BB0000-memory.dmp

          Filesize

          64KB

        • memory/3088-96-0x00007FF874050000-0x00007FF874B12000-memory.dmp

          Filesize

          10.8MB

        • memory/3216-95-0x00007FF874050000-0x00007FF874B12000-memory.dmp

          Filesize

          10.8MB

        • memory/3216-92-0x000001E583CF0000-0x000001E583D00000-memory.dmp

          Filesize

          64KB

        • memory/3216-79-0x00007FF874050000-0x00007FF874B12000-memory.dmp

          Filesize

          10.8MB

        • memory/3216-80-0x000001E583CF0000-0x000001E583D00000-memory.dmp

          Filesize

          64KB

        • memory/3216-81-0x000001E583CF0000-0x000001E583D00000-memory.dmp

          Filesize

          64KB

        • memory/4036-74-0x000001C48C010000-0x000001C48C020000-memory.dmp

          Filesize

          64KB

        • memory/4036-77-0x00007FF874050000-0x00007FF874B12000-memory.dmp

          Filesize

          10.8MB

        • memory/4036-72-0x000001C48C010000-0x000001C48C020000-memory.dmp

          Filesize

          64KB

        • memory/4036-71-0x00007FF874050000-0x00007FF874B12000-memory.dmp

          Filesize

          10.8MB

        • memory/4036-73-0x000001C48C010000-0x000001C48C020000-memory.dmp

          Filesize

          64KB

        • memory/4992-61-0x000001757F170000-0x000001757F178000-memory.dmp

          Filesize

          32KB

        • memory/4992-110-0x000001757EB30000-0x000001757EB40000-memory.dmp

          Filesize

          64KB

        • memory/4992-3-0x000001757EBE0000-0x000001757EC02000-memory.dmp

          Filesize

          136KB

        • memory/4992-91-0x00007FF874050000-0x00007FF874B12000-memory.dmp

          Filesize

          10.8MB

        • memory/4992-59-0x000001757EB30000-0x000001757EB40000-memory.dmp

          Filesize

          64KB

        • memory/4992-58-0x000001757EB30000-0x000001757EB40000-memory.dmp

          Filesize

          64KB

        • memory/4992-55-0x000001757F160000-0x000001757F170000-memory.dmp

          Filesize

          64KB

        • memory/4992-45-0x000001757F0C0000-0x000001757F0D1000-memory.dmp

          Filesize

          68KB

        • memory/4992-109-0x000001757EB30000-0x000001757EB40000-memory.dmp

          Filesize

          64KB

        • memory/4992-93-0x000001757EB30000-0x000001757EB40000-memory.dmp

          Filesize

          64KB

        • memory/4992-43-0x000001757F0E0000-0x000001757F0E8000-memory.dmp

          Filesize

          32KB

        • memory/4992-29-0x000001757EBD0000-0x000001757EBD8000-memory.dmp

          Filesize

          32KB

        • memory/4992-16-0x000001757F110000-0x000001757F156000-memory.dmp

          Filesize

          280KB

        • memory/4992-15-0x000001757EB30000-0x000001757EB40000-memory.dmp

          Filesize

          64KB

        • memory/4992-14-0x000001757EB30000-0x000001757EB40000-memory.dmp

          Filesize

          64KB

        • memory/4992-13-0x000001757EB30000-0x000001757EB40000-memory.dmp

          Filesize

          64KB

        • memory/4992-12-0x00007FF874050000-0x00007FF874B12000-memory.dmp

          Filesize

          10.8MB