Resubmissions

25/02/2025, 18:31

250225-w51ava1jt9 8

11/03/2024, 23:35

240311-3leclahf51 8

05/09/2023, 14:57

230905-sbr6lagd82 8

12/04/2023, 00:00

230412-aaqx2ahh3w 8

Analysis

  • max time kernel
    136s
  • max time network
    20s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    25/02/2025, 18:31

General

  • Target

    Elo.exe

  • Size

    96KB

  • MD5

    26b12d61e9e62412748069275521be1a

  • SHA1

    6206f2f1256774a058998da3517cbffc5e70270e

  • SHA256

    a6f48afd03aaa15824a2182e20088a4595f795766f78d679416d123ec17e1de5

  • SHA512

    0e28b335d373c7d1d92f15bd412886472db66ad9b1ab9a4fcae6f1338df07785a62b03ff069aea9543a850c95e9990e3107e0114d63f207721e897b859956491

  • SSDEEP

    1536:f7fbN3eEDhDPA/pICdUkbBtW7upvaLU0bI5taxKo0IOlnToIfswociK1CFOU:T7DhdC6kzWypvaQ0FxyNTBfspwYp

Malware Config

Signatures

  • Command and Scripting Interpreter: PowerShell 1 TTPs 3 IoCs

    Using powershell.exe command.

  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Event Triggered Execution: Accessibility Features 1 TTPs

    Windows contains accessibility features that may be used by adversaries to establish persistence and/or elevate privileges.

  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Delays execution with timeout.exe 4 IoCs
  • Modifies Internet Explorer settings 1 TTPs 2 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 12 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Views/modifies file attributes 1 TTPs 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Elo.exe
    "C:\Users\Admin\AppData\Local\Temp\Elo.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2248
    • C:\Windows\system32\cmd.exe
      "C:\Windows\sysnative\cmd" /c "C:\Users\Admin\AppData\Local\Temp\C053.tmp\C063.tmp\C064.bat C:\Users\Admin\AppData\Local\Temp\Elo.exe"
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:932
      • C:\Windows\system32\net.exe
        net session
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2256
        • C:\Windows\system32\net1.exe
          C:\Windows\system32\net1 session
          4⤵
            PID:2552
        • C:\Windows\system32\attrib.exe
          attrib +h +s C:\Users\Admin\AppData\Local\Temp\Elo.exe
          3⤵
          • Views/modifies file attributes
          PID:1040
        • C:\Windows\system32\attrib.exe
          attrib +h +s 27001.vbs
          3⤵
          • Views/modifies file attributes
          PID:2548
        • C:\Windows\system32\attrib.exe
          attrib +h +s 21813.vbs
          3⤵
          • Views/modifies file attributes
          PID:1684
        • C:\Windows\system32\attrib.exe
          attrib +h +s 5797.vbs
          3⤵
          • Views/modifies file attributes
          PID:2876
        • C:\Windows\system32\attrib.exe
          attrib +h +s Automate.bat
          3⤵
          • Views/modifies file attributes
          PID:2736
        • C:\Windows\system32\attrib.exe
          attrib +h +s Test.vbs
          3⤵
          • Views/modifies file attributes
          PID:2764
        • C:\Windows\system32\attrib.exe
          attrib +h +s Test.bat
          3⤵
          • Views/modifies file attributes
          PID:2176
        • C:\Windows\system32\attrib.exe
          attrib +h +s Detect.vbs
          3⤵
          • Views/modifies file attributes
          PID:2792
        • C:\Windows\system32\attrib.exe
          attrib +h +s Detect.bat
          3⤵
          • Views/modifies file attributes
          PID:2976
        • C:\Windows\system32\attrib.exe
          attrib +h +s bsod.bat
          3⤵
          • Views/modifies file attributes
          PID:2224
        • C:\Windows\System32\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\27001.vbs"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3000
          • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Start-Process Detect.bat -Verb RunAs -windowstyle hidden
            4⤵
            • Command and Scripting Interpreter: PowerShell
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of WriteProcessMemory
            PID:1020
            • C:\Windows\System32\cmd.exe
              "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\Detect.bat"
              5⤵
                PID:1808
                • C:\Windows\System32\WScript.exe
                  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Detect.vbs"
                  6⤵
                    PID:2528
                    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Start-Process Test.bat -Verb RunAs -windowstyle hidden -wait
                      7⤵
                      • Command and Scripting Interpreter: PowerShell
                      • Suspicious behavior: EnumeratesProcesses
                      • Suspicious use of AdjustPrivilegeToken
                      PID:112
                      • C:\Windows\System32\cmd.exe
                        "C:\Windows\System32\cmd.exe" /C "C:\Users\Admin\AppData\Local\Temp\Test.bat"
                        8⤵
                          PID:1508
                    • C:\Windows\System32\WScript.exe
                      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\Test.vbs"
                      6⤵
                        PID:936
                • C:\Windows\system32\NOTEPAD.EXE
                  "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\MEMZ.txt
                  3⤵
                  • Opens file in notepad (likely ransom note)
                  • Suspicious use of FindShellTrayWindow
                  PID:1384
                • C:\Windows\system32\attrib.exe
                  attrib +h +s MEMZ.txt
                  3⤵
                  • Views/modifies file attributes
                  PID:2240
                • C:\Windows\system32\cmd.exe
                  C:\Windows\system32\cmd.exe /S /D /c" type NirCmd.ps1 "
                  3⤵
                    PID:2536
                  • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                    powershell.exe -noprofile -
                    3⤵
                    • Command and Scripting Interpreter: PowerShell
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of AdjustPrivilegeToken
                    PID:1912
                  • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
                    powershell gci -Recurse -Filter *.zip |ForEach-Object {Expand-Archive -Path $_.Fullname -DestinationPath $_.BaseName -Force}
                    3⤵
                    • Suspicious behavior: EnumeratesProcesses
                    • Suspicious use of AdjustPrivilegeToken
                    PID:3052
                  • C:\Windows\system32\timeout.exe
                    timeout 15 /nobreak
                    3⤵
                    • Delays execution with timeout.exe
                    PID:580
                  • C:\Windows\system32\attrib.exe
                    attrib +h +s NirCmd.bat
                    3⤵
                    • Views/modifies file attributes
                    PID:1688
                  • C:\Windows\system32\attrib.exe
                    attrib +h +s NirCmd.txt
                    3⤵
                    • Views/modifies file attributes
                    PID:928
                  • C:\Windows\system32\attrib.exe
                    attrib +h +s NirCmd2.txt
                    3⤵
                    • Views/modifies file attributes
                    PID:1576
                  • C:\Windows\system32\attrib.exe
                    attrib +h +s NirCmd.zip
                    3⤵
                    • Views/modifies file attributes
                    PID:2260
                  • C:\Windows\system32\attrib.exe
                    attrib +h +s NirCmd.ps1
                    3⤵
                    • Views/modifies file attributes
                    PID:2712
                  • C:\Windows\system32\attrib.exe
                    attrib +h +s NirCmd.exe
                    3⤵
                    • Views/modifies file attributes
                    PID:2716
                  • C:\Windows\system32\timeout.exe
                    timeout 5 /nobreak
                    3⤵
                    • Delays execution with timeout.exe
                    PID:2552
                  • C:\Windows\system32\timeout.exe
                    timeout 20 /nobreak
                    3⤵
                    • Delays execution with timeout.exe
                    PID:2256
                  • C:\Windows\system32\timeout.exe
                    timeout 10 /nobreak
                    3⤵
                    • Delays execution with timeout.exe
                    PID:2816
                  • C:\Windows\system32\sethc.exe
                    sethc 250
                    3⤵
                      PID:2372
                • C:\Windows\system32\sethc.exe
                  sethc.exe 101
                  1⤵
                  • Enumerates connected drives
                  • Sets desktop wallpaper using registry
                  • Modifies Internet Explorer settings
                  PID:2464
                • C:\Windows\system32\AUDIODG.EXE
                  C:\Windows\system32\AUDIODG.EXE 0x5c0
                  1⤵
                  • Suspicious use of AdjustPrivilegeToken
                  PID:4356

                Network

                MITRE ATT&CK Enterprise v15

                Replay Monitor

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                Downloads

                • C:\Users\Admin\AppData\Local\Microsoft\Windows\Themes\Custom.theme

                  Filesize

                  1KB

                  MD5

                  b65aeb1b3da0b96313cc6e10dde4afe0

                  SHA1

                  34039989280d6d5a45793deaab79665c79b74b8d

                  SHA256

                  0254d776e25aeb83f195aacc7d477cd37683932586b27fdb7f09836d08296a3c

                  SHA512

                  be5c22848ee3491061feaab9c8e708e04e5d34bc0d8b46e816e059e6616c0114cfe5f40aee935f9d5dee546a990efa3bca00bdec03bcc29fedad37d0dbda95ea

                • C:\Users\Admin\AppData\Local\Microsoft\Windows\Themes\Custom.theme

                  Filesize

                  1KB

                  MD5

                  05471356f0ea1c0f5f5b8deb29c3ebd1

                  SHA1

                  12b14b737d1e0f76ca2494fb7a6841e5792a0504

                  SHA256

                  cf59479c75a8803468dd2a2c1d2803a2694c41992d5a0b3b65b1c69c28d1eac7

                  SHA512

                  942285259612792c2b3a45a65483e0775314841e397e815d447fd8f69f63f5de1ac48653a051c0121bd73415655c468772d39ce72bb1ba3d8ae367f78143502b

                • C:\Users\Admin\AppData\Local\Temp\21813.vbs

                  Filesize

                  147B

                  MD5

                  9e058306bf7f9c484a7553dcd1a080ad

                  SHA1

                  98670b4b9c36eea14078343272418104aee382c0

                  SHA256

                  245c3a8cf02aa38b997b3a4eea47b1872c68d882a2e63c19e142b5f3e72a9d0c

                  SHA512

                  bd4455afc947671eae07099d026124aeeda1c2f0ecac05f1fdf48bbe7ad2213d42dc797282cf1e7a206232d2463d8765944e6e9db8ce5c404f64b6d0c6f16fa0

                • C:\Users\Admin\AppData\Local\Temp\27001.vbs

                  Filesize

                  128B

                  MD5

                  de77acb4970462a84d1418426ef768c0

                  SHA1

                  9f9420eecfda1a228b31ba6a7a7cac2a2885d59e

                  SHA256

                  533d3759b2dc9f801b1440002bbe45a19099d87378faa7cd1ca38b6ed15c91cf

                  SHA512

                  c9bd51a8f42d51e4ecf3b699aaf5c907fb85d4c727f376677604f7bac369740a13953631c4164c988707e64494c8ecb7164074b782ce2a544220b1abd0aef0dc

                • C:\Users\Admin\AppData\Local\Temp\5797.vbs

                  Filesize

                  218B

                  MD5

                  a5ffacb76079366b573d25fec3dccf7f

                  SHA1

                  5039dc66332fdade2b16d3b9065fb5fc9061f6ba

                  SHA256

                  24ab295f3ea0d46fc827398c8b1d3b23752de36c8100bcfc4b5f011915b4f4f8

                  SHA512

                  85b40e401e88dd13f84ec781956980c59ccb338f3953240da0be5bf17ce7d42d1654cada7e8fc70a52a2a1befb697f7ad63622c2f97f7659d481e315fb4f1046

                • C:\Users\Admin\AppData\Local\Temp\Automate.bat

                  Filesize

                  249B

                  MD5

                  81c941ba135854235fdec9823e2509e9

                  SHA1

                  797536b4280a4e74357400915779b0ee65a9555f

                  SHA256

                  31db7bdffdf348d18458c01cd1711cdd3f25dd5eadc82bb391c02d83f38d5a29

                  SHA512

                  5bd805fd254f9633b30dae90265b20b7ad7b42bed4a22e17380eae10fd72192d0c7d1792b231ba412bee3f84fe5029a5e54ee57e709cbea096c79d37787bec11

                • C:\Users\Admin\AppData\Local\Temp\C053.tmp\C063.tmp\C064.bat

                  Filesize

                  7KB

                  MD5

                  481a357d27e7c1a2cfbe617f14600b8b

                  SHA1

                  5c29901995a3d345eaa0d3cc9ee763ec21638b89

                  SHA256

                  970b56f67e1996e434fc45c12b5157fb96ae4886b3ea4e77fad2e86fc78321aa

                  SHA512

                  3504010edfa0f8a17b888fdaa1631c5a2efc20a5689bb8cc06fe1a6a95067cc1ebd6ef52d2ea8c52867b7e16280292972025358beccf0937313822c6199b2bfd

                • C:\Users\Admin\AppData\Local\Temp\Detect.bat

                  Filesize

                  111B

                  MD5

                  3cb76846869bcbb44cebf7c7e4c6218c

                  SHA1

                  6d05544d37255fff5b838d3f3b7e0113fbb67c03

                  SHA256

                  a6c5a78cb4cb2427005933c394abc76ed075e3c7fb996e14802b306a7838bcf2

                  SHA512

                  a6017cccc5692992bcd9069f4593d3d56af9146628d9716daa0a663941a22522d2fe265dc1bc727b9eaeef1b06027c6d2b077db9ee2ea73802621ff89c980e58

                • C:\Users\Admin\AppData\Local\Temp\Detect.vbs

                  Filesize

                  220B

                  MD5

                  0ba0411f0d555bebb7752316e799f779

                  SHA1

                  4bdc902ee5300a65a4bad277f2a8b0175da7674d

                  SHA256

                  d7c456e54e9a5621b7df7cce19994ac3dd348ee98b086ae43112348c7935da06

                  SHA512

                  6738b93630327a2c2ef326abc4b896533523c602d57cd8a2305b151efd1e727938f6afce4e090e92d74964a01d748666a24847d537caf46e1a562c98927f9275

                • C:\Users\Admin\AppData\Local\Temp\MEMZ.txt

                  Filesize

                  202B

                  MD5

                  c6e2a6fe68bdcf28fd4632bcdea5a8ee

                  SHA1

                  4b8239cdafbba61992260695dc0e5249e37cb18c

                  SHA256

                  1a790c636b4b92759ff47ea50792fec9d7da67d2764b49d64644fc562c35a908

                  SHA512

                  0115a40e16647873223d6450b00b2168a00282b6decebbd92722a64c9625bdfa79bc65645e8fe021f76201f72a78c46676037953ea2918114e26b1076a912067

                • C:\Users\Admin\AppData\Local\Temp\NirCmd.ps1

                  Filesize

                  104B

                  MD5

                  66f27c86f734b28d170f3c4e1db8958e

                  SHA1

                  25557a67a5dc675e518e1bd83b32d346cc95025c

                  SHA256

                  1e9a3e5b03f1f763274fd17b8f5c64e2629923dd0c9cfc94865eadef9c69e90b

                  SHA512

                  f793c9742586e3150974e490c849dd0ed7a6a57e31d7affcc02406662e81378218991e6dbe63105db01cf7c352f1e76b4e71249fe8781a880258f9e9cab7fd7d

                • C:\Users\Admin\AppData\Local\Temp\Test.bat

                  Filesize

                  18B

                  MD5

                  e57a11eb25dd25ed755c1839d0e4a9b7

                  SHA1

                  e26d908081f93f2f28cef5091fd43a3ca1920dcf

                  SHA256

                  c196c15d05b0197ea127877380a5001d6b294083c4fd92e62be55438e6a7bdff

                  SHA512

                  1e2b50c39b67f0f1ac0cec2126817b033355147923ae8303b82ea9e19194820e9796c5cbff4af4f89683b471f4b7262dbd3953bdd7d87bfcd2cdaaf0991ad607

                • C:\Users\Admin\AppData\Local\Temp\Test.vbs

                  Filesize

                  10B

                  MD5

                  7aba77b3cbdf0b7c78cee71d55dd6f50

                  SHA1

                  e1c06f4fc0029aa239aa2a8d5d6a0ec6bbd89516

                  SHA256

                  9b972e91c3c303336561ca43420e9a808c34812246b9fe6d85c22bf005254e3a

                  SHA512

                  d6e8770db9f96c32dc76fa2d8a78f50a24938be6e2aabd3214080a4db0ec497ec5ce6ae1b481d8b0bb442779812e7222e435d8f5e6b5dd763c46a959a4c14f34

                • C:\Users\Admin\AppData\Local\Temp\bsod.bat

                  Filesize

                  40B

                  MD5

                  e9ca92728d880c80a242d55390769d37

                  SHA1

                  c82e73e41912b3543150d2f8e520b77e66c64876

                  SHA256

                  a67f7e91a028d2695cdacf984b5fd2f33ee90e95d84467df1e33a94e3573e19e

                  SHA512

                  70fc9d051486e2ec964baefedf4fb8959baa3dee74887028dd4ff4337ecf0f70012c9eec855f1a65e9f141d3b76d9c616039a292e779ce690f1e191397eb088c

                • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\YT982QDL9TOWO03JXKGA.temp

                  Filesize

                  7KB

                  MD5

                  0b596e7dd1b00a4acb06f7feed8c8b2a

                  SHA1

                  d358c84eb1790a9e4509dd5b753b06eaeb4d3ee1

                  SHA256

                  e16f2919a9436ce410cb0c647f875f5894ef003da52d8086d633714182a01411

                  SHA512

                  3f40a2c80da0c0e29e05ac22ab5e118b7fe171a1923bec0585ab10ff613550bcb6878cb6a345e5f871c7b6f119c54b2852c77810c0dfc873b6748a7a5cfd3552

                • memory/1020-125-0x0000000001E20000-0x0000000001E28000-memory.dmp

                  Filesize

                  32KB

                • memory/1020-124-0x000000001B2D0000-0x000000001B5B2000-memory.dmp

                  Filesize

                  2.9MB

                • memory/3052-185-0x000000001B3A0000-0x000000001B682000-memory.dmp

                  Filesize

                  2.9MB

                • memory/3052-191-0x0000000002490000-0x0000000002498000-memory.dmp

                  Filesize

                  32KB