Analysis

  • max time kernel
    22s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    13/09/2024, 01:53

General

  • Target
    6b6b6dcf20260d92fbf0fd6cea9d4bdabf29e047af19ad026b58c4aaf448a67e.exe
  • Size 282KB
  • Sample240913-cbg3maydja
  • SHA256 6b6b6dcf20260d92fbf0fd6cea9d4bdabf29e047af19ad026b58c4aaf448a67e
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • vidar

C2
  • https://t.me/edm0d

  • https://steamcommunity.com/profiles/76561199768374681

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36 OPR/110.0.0.0

Extracted

Family
  • stealc

Botnet
  • default

C2
  • http://46.8.231.109

Attributes
  • url_path

    /c4754d4f680ead72.php

Signatures

  • Detect Vidar Stealer 14 IoCs
  • Stealc

    Stealc is an infostealer written in C++.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Downloads MZ/PE file
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 16 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of SetThreadContext 4 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 8 IoCs

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

  • Checks processor information in registry 2 TTPs 4 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6b6b6dcf20260d92fbf0fd6cea9d4bdabf29e047af19ad026b58c4aaf448a67e.exe
    "C:\Users\Admin\AppData\Local\Temp\6b6b6dcf20260d92fbf0fd6cea9d4bdabf29e047af19ad026b58c4aaf448a67e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2260
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
        PID:2176
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        2⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Checks processor information in registry
        • Modifies system certificate store
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2968
        • C:\ProgramData\AEGHIJEHJD.exe
          "C:\ProgramData\AEGHIJEHJD.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:1396
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2016
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 252
              5⤵
              • Program crash
              PID:2076
        • C:\ProgramData\AKKFHDAKEC.exe
          "C:\ProgramData\AKKFHDAKEC.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2268
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
            4⤵
            • Loads dropped DLL
            • System Location Discovery: System Language Discovery
            • Checks processor information in registry
            • Suspicious behavior: EnumeratesProcesses
            PID:2780
            • C:\Windows\SysWOW64\cmd.exe
              "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminBAEBFIIECB.exe"
              5⤵
                PID:592
                • C:\Users\AdminBAEBFIIECB.exe
                  "C:\Users\AdminBAEBFIIECB.exe"
                  6⤵
                    PID:680
                    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                      7⤵
                        PID:772
                        • C:\Program Files\Google\Chrome\Application\OO9REEP10QMZNQHZQ1RTX.exe
                          "C:\Program Files\Google\Chrome\Application\OO9REEP10QMZNQHZQ1RTX.exe"
                          8⤵
                            PID:2172
                    • C:\Windows\SysWOW64\cmd.exe
                      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\AdminAEGDBAFHJJ.exe"
                      5⤵
                        PID:1756
                        • C:\Users\AdminAEGDBAFHJJ.exe
                          "C:\Users\AdminAEGDBAFHJJ.exe"
                          6⤵
                            PID:1396
                            • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                              "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                              7⤵
                                PID:2736
                      • C:\ProgramData\DBAEGCGCGI.exe
                        "C:\ProgramData\DBAEGCGCGI.exe"
                        3⤵
                        • Executes dropped EXE
                        • Suspicious use of SetThreadContext
                        • System Location Discovery: System Language Discovery
                        • Suspicious use of WriteProcessMemory
                        PID:2708
                        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
                          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
                          4⤵
                          • System Location Discovery: System Language Discovery
                          PID:1944
                      • C:\Windows\SysWOW64\cmd.exe
                        "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\AFBAFBKEGCFB" & exit
                        3⤵
                          PID:2448
                          • C:\Windows\SysWOW64\timeout.exe
                            timeout /t 10
                            4⤵
                            • Delays execution with timeout.exe
                            PID:308

                    Network

                          MITRE ATT&CK Enterprise v15

                          Replay Monitor

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                          Downloads

                          OO9REEP10QMZNQHZQ1RTX.exe

                          • Path C:\Program Files\Google\Chrome\Application\OO9REEP10QMZNQHZQ1RTX.exe
                          • Size 63KB
                          • SHA256 6e70b56d748c4ccab13cc8a055d3795ea0dd95fe3b70568d7d3ac0c6621140a3
                          • MD5 SHA1 SHA512 SSDEEP

                          AEGHIJEHJD.exe

                          • Path C:\ProgramData\AEGHIJEHJD.exe
                          • Size 328KB
                          • SHA256 efe0690c0cc62906989a9e2bbc6e697046b093624e02e15d0e63ea7aa0186884
                          • MD5 SHA1 SHA512 SSDEEP

                          HJDAFIEH

                          • Path C:\ProgramData\HJDAFIEH
                          • Size 92KB
                          • SHA256 a10b04d057393f5974c776ed253909cafcd014752a57da2971ae0dddfa889ab0
                          • MD5 SHA1 SHA512 SSDEEP

                          FCFBFH

                          • Path C:\ProgramData\JJJDGIECFCAK\FCFBFH
                          • Size 46KB
                          • SHA256 522cad95d3fa6ebb3274709b8d09bbb1ca37389d0a924cd29e934a75aa04c6c9
                          • MD5 SHA1 SHA512 SSDEEP

                          HCAAEB

                          • Path C:\ProgramData\JJJDGIECFCAK\HCAAEB
                          • Size 20KB
                          • SHA256 4d3f3194cb1133437aa69bb880c8cbb55ddf06ff61a88ca6c3f1bbfbfd35d988
                          • MD5 SHA1 SHA512 SSDEEP

                          JKECGHCFIJDAAKFHJJDH

                          • Path C:\ProgramData\JKECGHCFIJDAAKFHJJDH
                          • Size 6KB
                          • SHA256 287eb8a3bc42f673abd73d8ca82c076454eaed773c031b9799b9e2e77a045cf4
                          • MD5 SHA1 SHA512 SSDEEP

                          freebl3.dll

                          • Path C:\ProgramData\freebl3.dll
                          • Size 42KB
                          • SHA256 55f61ce305c2664fe5fe7f5dfb67762f319bc452d3a262472cfc17a5a9ec1f96
                          • MD5 SHA1 SHA512 SSDEEP

                          msvcp140.dll

                          • Path C:\ProgramData\msvcp140.dll
                          • Size 13KB
                          • SHA256 edc0250d8dfe5b4049a64b6171d12ad701784f4650484d35315ab5286384e79e
                          • MD5 SHA1 SHA512 SSDEEP

                          softokn3.dll

                          • Path C:\ProgramData\softokn3.dll
                          • Size 13KB
                          • SHA256 3ef27598650d34ccca435d9eb54db0a0ba7c25d6325e17665d7905dfa2423f9f
                          • MD5 SHA1 SHA512 SSDEEP

                          vcruntime140.dll

                          • Path C:\ProgramData\vcruntime140.dll
                          • Size 78KB
                          • SHA256 8934aaeb65b6e6d253dfe72dea5d65856bd871e989d5d3a2a35edfe867bb4825
                          • MD5 SHA1 SHA512 SSDEEP

                          0255CEC2C51D081EFF40366512890989_8A726233B0F9B64FE822B7A4065CB375

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\0255CEC2C51D081EFF40366512890989_8A726233B0F9B64FE822B7A4065CB375
                          • Size 471B
                          • SHA256 40cb238f64b6d464f297878f2389d1223b1417f493f488c1d55759df7f8a39c2
                          • MD5 SHA1 SHA512

                          5080DC7A65DB6A5960ECD874088F3328_862BA1770B2FEE013603D2FF9ABEAFDA

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\5080DC7A65DB6A5960ECD874088F3328_862BA1770B2FEE013603D2FF9ABEAFDA
                          • Size 2KB
                          • SHA256 340d048d7f46e25d83d97affa98d53d773e83e070b28ed67ea3472362a0a2993
                          • MD5 SHA1 SHA512

                          B2FAF7692FD9FFBD64EDE317E42334BA_2DBE917624E9880FE0C7C5570D56E691

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_2DBE917624E9880FE0C7C5570D56E691
                          • Size 1KB
                          • SHA256 5d2c8933104167dece16b77357813d01c861d0c00176057ab8fe93222b51141d
                          • MD5 SHA1 SHA512

                          EDC238BFF48A31D55A97E1E93892934B_C31B2498754E340573F1336DE607D619

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\EDC238BFF48A31D55A97E1E93892934B_C31B2498754E340573F1336DE607D619
                          • Size 471B
                          • SHA256 91e44f3600aeef192e130be40bde2461439a9e09b1e90b0ff0ce4532e4b37cd5
                          • MD5 SHA1 SHA512

                          0255CEC2C51D081EFF40366512890989_8A726233B0F9B64FE822B7A4065CB375

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\0255CEC2C51D081EFF40366512890989_8A726233B0F9B64FE822B7A4065CB375
                          • Size 490B
                          • SHA256 3e75fd3c8346df9d32acba7309ce4275e44cc5f51f43ea7e0d0427b11ca60d44
                          • MD5 SHA1 SHA512

                          5080DC7A65DB6A5960ECD874088F3328_862BA1770B2FEE013603D2FF9ABEAFDA

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\5080DC7A65DB6A5960ECD874088F3328_862BA1770B2FEE013603D2FF9ABEAFDA
                          • Size 482B
                          • SHA256 7ff8ecbfd3e79d3b5d94b78ebb10c799ccfc61a303420ec49bfd6002ebfa6742
                          • MD5 SHA1 SHA512

                          94308059B57B3142E455B38A6EB92015

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                          • Size 342B
                          • SHA256 dfff416c0e0dc3f93aba664333bf008553abfc26f0f56081a7208aa41ae9ecc0
                          • MD5 SHA1 SHA512

                          94308059B57B3142E455B38A6EB92015

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                          • Size 342B
                          • SHA256 2bacc6b3406932ccfb02a86bd609624edca91d5b3c22bcfa14f8a6c67cfd8480
                          • MD5 SHA1 SHA512

                          94308059B57B3142E455B38A6EB92015

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                          • Size 342B
                          • SHA256 618850629ed9903682133919ec9ba297d037b7a524d551cb92b8353bd21e05c7
                          • MD5 SHA1 SHA512

                          94308059B57B3142E455B38A6EB92015

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
                          • Size 342B
                          • SHA256 9fc8d456158cbefa332d41e2decf3d23eec30d549a60cc47ed542dda420aaff3
                          • MD5 SHA1 SHA512

                          B2FAF7692FD9FFBD64EDE317E42334BA_2DBE917624E9880FE0C7C5570D56E691

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_2DBE917624E9880FE0C7C5570D56E691
                          • Size 486B
                          • SHA256 913bf5ed7e0d366e8992f25f87cdc5545273f2bb00037fd19cbf87a26ede12cc
                          • MD5 SHA1 SHA512

                          EDC238BFF48A31D55A97E1E93892934B_C31B2498754E340573F1336DE607D619

                          • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\EDC238BFF48A31D55A97E1E93892934B_C31B2498754E340573F1336DE607D619
                          • Size 400B
                          • SHA256 ac0201bbefe077faf6a5273e1699dd5c5164309aea1be21d0b4744a2f2caacf0
                          • MD5 SHA1 SHA512

                          76561199768374681[1].htm

                          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\0I0VVMWQ\76561199768374681[1].htm
                          • Size 33KB
                          • SHA256 7e5bf3b9d362b2cfa72948308041f87750d4c5ab89855b0a0050de665dd6ee7f
                          • MD5 SHA1 SHA512 SSDEEP

                          76561199768374681[1].htm

                          • Path C:\Users\Admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\Q0WBLVJY\76561199768374681[1].htm
                          • Size 33KB
                          • SHA256 62faf9cc6b34383d94d887711bb642f5039a68324fdb5ceb740ab0d553fe881c
                          • MD5 SHA1 SHA512 SSDEEP

                          CabC093.tmp

                          • Path C:\Users\Admin\AppData\Local\Temp\CabC093.tmp
                          • Size 70KB
                          • SHA256 b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
                          • MD5 SHA1 SHA512 SSDEEP

                          TarC0C5.tmp

                          • Path C:\Users\Admin\AppData\Local\Temp\TarC0C5.tmp
                          • Size 181KB
                          • SHA256 8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8
                          • MD5 SHA1 SHA512 SSDEEP

                          AKKFHDAKEC.exe

                          • Path \ProgramData\AKKFHDAKEC.exe
                          • Size 206KB
                          • SHA256 c98f17dd444209ad0a6d71221b67cd632bc6409686f750bb5118a7e42eca91e0
                          • MD5 SHA1 SHA512 SSDEEP

                          DBAEGCGCGI.exe

                          • Path \ProgramData\DBAEGCGCGI.exe
                          • Size 282KB
                          • SHA256 fdf090545751ce09207f7cec140d21d246cb2f25002683e2cd36c92e18707f56
                          • MD5 SHA1 SHA512 SSDEEP

                          mozglue.dll

                          • Path \ProgramData\mozglue.dll
                          • Size 593KB
                          • SHA256 ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a
                          • MD5 SHA1 SHA512 SSDEEP

                          nss3.dll

                          • Path \ProgramData\nss3.dll
                          • Size 2.0MB
                          • SHA256 ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5
                          • MD5 SHA1 SHA512 SSDEEP

                          memory/680-798-0x0000000001260000-0x00000000012B6000-memory.dmp

                          memory/1396-554-0x0000000073340000-0x0000000073A2E000-memory.dmp

                          memory/1396-584-0x0000000073340000-0x0000000073A2E000-memory.dmp

                          memory/1396-538-0x000000007334E000-0x000000007334F000-memory.dmp

                          memory/1396-830-0x0000000001200000-0x000000000124A000-memory.dmp

                          memory/1396-539-0x0000000001060000-0x00000000010B6000-memory.dmp

                          memory/2016-581-0x0000000000400000-0x0000000000459000-memory.dmp

                          memory/2016-563-0x0000000000400000-0x0000000000459000-memory.dmp

                          memory/2016-562-0x0000000000400000-0x0000000000459000-memory.dmp

                          memory/2016-573-0x0000000000400000-0x0000000000459000-memory.dmp

                          memory/2016-561-0x0000000000400000-0x0000000000459000-memory.dmp

                          memory/2016-566-0x0000000000400000-0x0000000000459000-memory.dmp

                          memory/2016-569-0x0000000000400000-0x0000000000459000-memory.dmp

                          memory/2172-829-0x00000000002A0000-0x00000000002B2000-memory.dmp

                          memory/2260-0-0x0000000074B4E000-0x0000000074B4F000-memory.dmp

                          memory/2260-13-0x0000000002420000-0x0000000004420000-memory.dmp

                          memory/2260-16-0x0000000074B40000-0x000000007522E000-memory.dmp

                          memory/2260-1-0x0000000000FD0000-0x000000000101A000-memory.dmp

                          memory/2268-637-0x00000000027F0000-0x00000000047F0000-memory.dmp

                          memory/2268-612-0x00000000013B0000-0x00000000013E8000-memory.dmp

                          memory/2708-666-0x0000000001170000-0x00000000011BA000-memory.dmp

                          memory/2780-635-0x0000000000400000-0x0000000000643000-memory.dmp

                          memory/2780-626-0x0000000000400000-0x0000000000643000-memory.dmp

                          memory/2780-628-0x0000000000400000-0x0000000000643000-memory.dmp

                          memory/2780-624-0x0000000000400000-0x0000000000643000-memory.dmp

                          memory/2780-631-0x0000000000400000-0x0000000000643000-memory.dmp

                          memory/2780-632-0x0000000000400000-0x0000000000643000-memory.dmp

                          memory/2780-636-0x0000000000400000-0x0000000000643000-memory.dmp

                          memory/2780-639-0x0000000000400000-0x0000000000643000-memory.dmp

                          memory/2968-439-0x0000000000400000-0x0000000000657000-memory.dmp

                          memory/2968-198-0x00000000202F0000-0x000000002054F000-memory.dmp

                          memory/2968-178-0x0000000000400000-0x0000000000657000-memory.dmp

                          memory/2968-159-0x0000000000400000-0x0000000000657000-memory.dmp

                          memory/2968-208-0x0000000000400000-0x0000000000657000-memory.dmp

                          memory/2968-4-0x0000000000400000-0x0000000000657000-memory.dmp

                          memory/2968-5-0x0000000000400000-0x0000000000657000-memory.dmp

                          memory/2968-7-0x0000000000400000-0x0000000000657000-memory.dmp

                          memory/2968-8-0x0000000000400000-0x0000000000657000-memory.dmp

                          memory/2968-227-0x0000000000400000-0x0000000000657000-memory.dmp

                          memory/2968-358-0x0000000000400000-0x0000000000657000-memory.dmp

                          memory/2968-9-0x0000000000400000-0x0000000000657000-memory.dmp

                          memory/2968-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

                          memory/2968-15-0x0000000000400000-0x0000000000657000-memory.dmp

                          memory/2968-377-0x0000000000400000-0x0000000000657000-memory.dmp

                          memory/2968-18-0x0000000000400000-0x0000000000657000-memory.dmp

                          memory/2968-12-0x0000000000400000-0x0000000000657000-memory.dmp

                          memory/2968-6-0x0000000000400000-0x0000000000657000-memory.dmp

                          memory/2968-420-0x0000000000400000-0x0000000000657000-memory.dmp