5cfdfbbd928e7f75439ab753a3ed477e

General
Target

5cfdfbbd928e7f75439ab753a3ed477e.exe

Filesize

733KB

Completed

06-01-2022 17:06

Score
10/10
MD5

5cfdfbbd928e7f75439ab753a3ed477e

SHA1

79e59a3c5585e8512e7dbed0f427c3112c453e44

SHA256

151b35e77d77973a3386732ec0b8f56e0ec08f63f052c0333fdf0f9185f4baa3

Malware Config

Extracted

Family vidar
Version 49.5
Botnet 937
C2

https://qoto.org/@banda4ker

https://c.im/@banda3ker

Attributes
profile_id
937
Signatures 16

Filter: none

Collection
Credential Access
Discovery
  • Vidar

    Description

    Vidar is an infostealer based on Arkei stealer.

  • Vidar Stealer

    Tags

    Reported IOCs

    resourceyara_rule
    behavioral1/memory/1668-56-0x0000000000220000-0x00000000002F6000-memory.dmpfamily_vidar
    behavioral1/memory/1668-57-0x0000000000400000-0x00000000004D9000-memory.dmpfamily_vidar
  • Downloads MZ/PE file
  • Deletes itself
    cmd.exe

    Reported IOCs

    pidprocess
    1104cmd.exe
  • Loads dropped DLL
    5cfdfbbd928e7f75439ab753a3ed477e.exe

    Reported IOCs

    pidprocess
    16685cfdfbbd928e7f75439ab753a3ed477e.exe
    16685cfdfbbd928e7f75439ab753a3ed477e.exe
    16685cfdfbbd928e7f75439ab753a3ed477e.exe
    16685cfdfbbd928e7f75439ab753a3ed477e.exe
  • Reads user/profile data of web browsers

    Description

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

    TTPs

    Data from Local SystemCredentials in Files
  • Accesses 2FA software files, possible credential harvesting

    TTPs

    Data from Local SystemCredentials in Files
  • Accesses cryptocurrency files/wallets, possible credential harvesting

    Tags

    TTPs

    Data from Local SystemCredentials in Files
  • Checks installed software on the system

    Description

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

    Tags

    TTPs

    Query Registry
  • Enumerates physical storage devices

    Description

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

    TTPs

    System Information Discovery
  • Checks processor information in registry
    5cfdfbbd928e7f75439ab753a3ed477e.exe

    Description

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

    TTPs

    Query RegistrySystem Information Discovery

    Reported IOCs

    descriptioniocprocess
    Key opened\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\05cfdfbbd928e7f75439ab753a3ed477e.exe
    Key value queried\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString5cfdfbbd928e7f75439ab753a3ed477e.exe
  • Delays execution with timeout.exe
    timeout.exe

    Tags

    Reported IOCs

    pidprocess
    1604timeout.exe
  • Kills process with taskkill
    taskkill.exe

    Tags

    Reported IOCs

    pidprocess
    1512taskkill.exe
  • Suspicious behavior: EnumeratesProcesses
    5cfdfbbd928e7f75439ab753a3ed477e.exe

    Reported IOCs

    pidprocess
    16685cfdfbbd928e7f75439ab753a3ed477e.exe
    16685cfdfbbd928e7f75439ab753a3ed477e.exe
    16685cfdfbbd928e7f75439ab753a3ed477e.exe
    16685cfdfbbd928e7f75439ab753a3ed477e.exe
  • Suspicious use of AdjustPrivilegeToken
    taskkill.exe

    Reported IOCs

    descriptionpidprocess
    Token: SeDebugPrivilege1512taskkill.exe
  • Suspicious use of WriteProcessMemory
    5cfdfbbd928e7f75439ab753a3ed477e.execmd.exe

    Reported IOCs

    descriptionpidprocesstarget process
    PID 1668 wrote to memory of 110416685cfdfbbd928e7f75439ab753a3ed477e.execmd.exe
    PID 1668 wrote to memory of 110416685cfdfbbd928e7f75439ab753a3ed477e.execmd.exe
    PID 1668 wrote to memory of 110416685cfdfbbd928e7f75439ab753a3ed477e.execmd.exe
    PID 1668 wrote to memory of 110416685cfdfbbd928e7f75439ab753a3ed477e.execmd.exe
    PID 1104 wrote to memory of 15121104cmd.exetaskkill.exe
    PID 1104 wrote to memory of 15121104cmd.exetaskkill.exe
    PID 1104 wrote to memory of 15121104cmd.exetaskkill.exe
    PID 1104 wrote to memory of 15121104cmd.exetaskkill.exe
    PID 1104 wrote to memory of 16041104cmd.exetimeout.exe
    PID 1104 wrote to memory of 16041104cmd.exetimeout.exe
    PID 1104 wrote to memory of 16041104cmd.exetimeout.exe
    PID 1104 wrote to memory of 16041104cmd.exetimeout.exe
Processes 4
  • C:\Users\Admin\AppData\Local\Temp\5cfdfbbd928e7f75439ab753a3ed477e.exe
    "C:\Users\Admin\AppData\Local\Temp\5cfdfbbd928e7f75439ab753a3ed477e.exe"
    Loads dropped DLL
    Checks processor information in registry
    Suspicious behavior: EnumeratesProcesses
    Suspicious use of WriteProcessMemory
    PID:1668
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c taskkill /im 5cfdfbbd928e7f75439ab753a3ed477e.exe /f & timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\5cfdfbbd928e7f75439ab753a3ed477e.exe" & del C:\ProgramData\*.dll & exit
      Deletes itself
      Suspicious use of WriteProcessMemory
      PID:1104
      • C:\Windows\SysWOW64\taskkill.exe
        taskkill /im 5cfdfbbd928e7f75439ab753a3ed477e.exe /f
        Kills process with taskkill
        Suspicious use of AdjustPrivilegeToken
        PID:1512
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 6
        Delays execution with timeout.exe
        PID:1604
Network
MITRE ATT&CK Matrix
Command and Control
    Credential Access
    Defense Evasion
      Execution
        Exfiltration
          Impact
            Initial Access
              Lateral Movement
                Persistence
                  Privilege Escalation
                    Replay Monitor
                    00:00 00:00
                    Downloads
                    • C:\ProgramData\freebl3.dll

                      MD5

                      ef2834ac4ee7d6724f255beaf527e635

                      SHA1

                      5be8c1e73a21b49f353c2ecfa4108e43a883cb7b

                      SHA256

                      a770ecba3b08bbabd0a567fc978e50615f8b346709f8eb3cfacf3faab24090ba

                      SHA512

                      c6ea0e4347cbd7ef5e80ae8c0afdca20ea23ac2bdd963361dfaf562a9aed58dcbc43f89dd826692a064d76c3f4b3e92361af7b79a6d16a75d9951591ae3544d2

                    • C:\ProgramData\mozglue.dll

                      MD5

                      8f73c08a9660691143661bf7332c3c27

                      SHA1

                      37fa65dd737c50fda710fdbde89e51374d0c204a

                      SHA256

                      3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

                      SHA512

                      0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

                    • C:\ProgramData\msvcp140.dll

                      MD5

                      109f0f02fd37c84bfc7508d4227d7ed5

                      SHA1

                      ef7420141bb15ac334d3964082361a460bfdb975

                      SHA256

                      334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4

                      SHA512

                      46eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39

                    • C:\ProgramData\nss3.dll

                      MD5

                      bfac4e3c5908856ba17d41edcd455a51

                      SHA1

                      8eec7e888767aa9e4cca8ff246eb2aacb9170428

                      SHA256

                      e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

                      SHA512

                      2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

                    • C:\ProgramData\softokn3.dll

                      MD5

                      a2ee53de9167bf0d6c019303b7ca84e5

                      SHA1

                      2a3c737fa1157e8483815e98b666408a18c0db42

                      SHA256

                      43536adef2ddcc811c28d35fa6ce3031029a2424ad393989db36169ff2995083

                      SHA512

                      45b56432244f86321fa88fbcca6a0d2a2f7f4e0648c1d7d7b1866adc9daa5eddd9f6bb73662149f279c9ab60930dad1113c8337cb5e6ec9eed5048322f65f7d8

                    • C:\ProgramData\vcruntime140.dll

                      MD5

                      7587bf9cb4147022cd5681b015183046

                      SHA1

                      f2106306a8f6f0da5afb7fc765cfa0757ad5a628

                      SHA256

                      c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d

                      SHA512

                      0b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f

                    • \ProgramData\mozglue.dll

                      MD5

                      8f73c08a9660691143661bf7332c3c27

                      SHA1

                      37fa65dd737c50fda710fdbde89e51374d0c204a

                      SHA256

                      3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

                      SHA512

                      0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

                    • \ProgramData\msvcp140.dll

                      MD5

                      109f0f02fd37c84bfc7508d4227d7ed5

                      SHA1

                      ef7420141bb15ac334d3964082361a460bfdb975

                      SHA256

                      334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4

                      SHA512

                      46eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39

                    • \ProgramData\nss3.dll

                      MD5

                      bfac4e3c5908856ba17d41edcd455a51

                      SHA1

                      8eec7e888767aa9e4cca8ff246eb2aacb9170428

                      SHA256

                      e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

                      SHA512

                      2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

                    • \ProgramData\vcruntime140.dll

                      MD5

                      7587bf9cb4147022cd5681b015183046

                      SHA1

                      f2106306a8f6f0da5afb7fc765cfa0757ad5a628

                      SHA256

                      c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d

                      SHA512

                      0b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f

                    • memory/1104-62-0x0000000000000000-mapping.dmp

                    • memory/1512-63-0x0000000000000000-mapping.dmp

                    • memory/1604-64-0x0000000000000000-mapping.dmp

                    • memory/1668-57-0x0000000000400000-0x00000000004D9000-memory.dmp

                    • memory/1668-56-0x0000000000220000-0x00000000002F6000-memory.dmp

                    • memory/1668-55-0x0000000075B51000-0x0000000075B53000-memory.dmp

                    • memory/1668-54-0x0000000000958000-0x00000000009D5000-memory.dmp