Analysis

  • max time kernel
    152s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-12-2022 09:27

General

  • Target

    4dac9b8456336bcf9575a28073cd174b1ff860d1daad6c9b3c1f9ee052ff22c6.exe

  • Size

    342KB

  • MD5

    c4a507025ba4e36138b24c84b5d39af1

  • SHA1

    e898d80d35b9f1decafa45378d76074b93413b64

  • SHA256

    4dac9b8456336bcf9575a28073cd174b1ff860d1daad6c9b3c1f9ee052ff22c6

  • SHA512

    85087ad9a73b9aface96417aae8f2c4eda34d5cd8eeac374664871a4615fe9bfca6f65bf8ac9e0bc8343dea704c19e18fb58334617af511a5f73a5ce4f83c5b8

  • SSDEEP

    6144:y4APCi8a9s3qYnJIz3folLehGogymlglXsG1P0y:y3PCit0LnJS7HgyWgl8G

Malware Config

Extracted

Family

vidar

Version

56

Botnet

1148

C2

https://t.me/asifrazatg

https://steamcommunity.com/profiles/76561199439929669

Attributes
  • profile_id

    1148

Signatures

  • Detects Smokeloader packer 1 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Executes dropped EXE 3 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Uses the VBS compiler for execution 1 TTPs
  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • 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.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 2 IoCs
  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 19 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of WriteProcessMemory 59 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4dac9b8456336bcf9575a28073cd174b1ff860d1daad6c9b3c1f9ee052ff22c6.exe
    "C:\Users\Admin\AppData\Local\Temp\4dac9b8456336bcf9575a28073cd174b1ff860d1daad6c9b3c1f9ee052ff22c6.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:1556
  • C:\Users\Admin\AppData\Local\Temp\EEE4.exe
    C:\Users\Admin\AppData\Local\Temp\EEE4.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1128
    • C:\Users\Admin\AppData\Local\Temp\EEE4.exe
      "C:\Users\Admin\AppData\Local\Temp\EEE4.exe"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious use of WriteProcessMemory
      PID:2584
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\Temp\EEE4.exe" & exit
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2748
        • C:\Windows\SysWOW64\timeout.exe
          timeout /t 6
          4⤵
          • Delays execution with timeout.exe
          PID:2428
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1128 -s 224
      2⤵
      • Program crash
      PID:5044
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1128 -ip 1128
    1⤵
      PID:3152
    • C:\Users\Admin\AppData\Local\Temp\51D.exe
      C:\Users\Admin\AppData\Local\Temp\51D.exe
      1⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:3488
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
        2⤵
          PID:4212
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3488 -s 444
          2⤵
          • Program crash
          PID:3232
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        1⤵
          PID:4436
        • C:\Windows\explorer.exe
          C:\Windows\explorer.exe
          1⤵
            PID:2452
          • C:\Windows\SysWOW64\explorer.exe
            C:\Windows\SysWOW64\explorer.exe
            1⤵
              PID:4504
            • C:\Windows\explorer.exe
              C:\Windows\explorer.exe
              1⤵
                PID:1388
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -pss -s 504 -p 3488 -ip 3488
                1⤵
                  PID:2216
                • C:\Windows\SysWOW64\explorer.exe
                  C:\Windows\SysWOW64\explorer.exe
                  1⤵
                    PID:4588
                  • C:\Windows\SysWOW64\explorer.exe
                    C:\Windows\SysWOW64\explorer.exe
                    1⤵
                      PID:2612
                    • C:\Windows\SysWOW64\explorer.exe
                      C:\Windows\SysWOW64\explorer.exe
                      1⤵
                        PID:4708
                      • C:\Windows\explorer.exe
                        C:\Windows\explorer.exe
                        1⤵
                          PID:4488
                        • C:\Windows\SysWOW64\explorer.exe
                          C:\Windows\SysWOW64\explorer.exe
                          1⤵
                            PID:776

                          Network

                          MITRE ATT&CK Matrix ATT&CK v6

                          Execution

                          Scripting

                          1
                          T1064

                          Defense Evasion

                          Scripting

                          1
                          T1064

                          Credential Access

                          Credentials in Files

                          3
                          T1081

                          Discovery

                          Query Registry

                          4
                          T1012

                          System Information Discovery

                          4
                          T1082

                          Peripheral Device Discovery

                          1
                          T1120

                          Collection

                          Data from Local System

                          3
                          T1005

                          Command and Control

                          Web Service

                          1
                          T1102

                          Replay Monitor

                          Loading Replay Monitor...

                          Downloads

                          • C:\ProgramData\mozglue.dll
                            Filesize

                            593KB

                            MD5

                            c8fd9be83bc728cc04beffafc2907fe9

                            SHA1

                            95ab9f701e0024cedfbd312bcfe4e726744c4f2e

                            SHA256

                            ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

                            SHA512

                            fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

                          • C:\ProgramData\nss3.dll
                            Filesize

                            2.0MB

                            MD5

                            1cc453cdf74f31e4d913ff9c10acdde2

                            SHA1

                            6e85eae544d6e965f15fa5c39700fa7202f3aafe

                            SHA256

                            ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

                            SHA512

                            dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

                          • C:\Users\Admin\AppData\Local\Temp\51D.exe
                            Filesize

                            4.6MB

                            MD5

                            e667a5e9b310d53363e7b80c01e475fb

                            SHA1

                            cec8d6ec5d199db9fa9d38ac5264bc5b31846642

                            SHA256

                            a02cc91f1cf994a81aae0b3ad824aabf9adcce669d11a19fa98733206bc43db5

                            SHA512

                            5f274dc4f0aa6b6d15c54fd35c4cfda948da2e44d45e4c4ee2451614086b75a0d13fa27da58443fbcdfc779ee69c7f4e3fe893933396da5020aeed2330270fe0

                          • C:\Users\Admin\AppData\Local\Temp\51D.exe
                            Filesize

                            4.6MB

                            MD5

                            e667a5e9b310d53363e7b80c01e475fb

                            SHA1

                            cec8d6ec5d199db9fa9d38ac5264bc5b31846642

                            SHA256

                            a02cc91f1cf994a81aae0b3ad824aabf9adcce669d11a19fa98733206bc43db5

                            SHA512

                            5f274dc4f0aa6b6d15c54fd35c4cfda948da2e44d45e4c4ee2451614086b75a0d13fa27da58443fbcdfc779ee69c7f4e3fe893933396da5020aeed2330270fe0

                          • C:\Users\Admin\AppData\Local\Temp\EEE4.exe
                            Filesize

                            401KB

                            MD5

                            37980aee9719695d908aa93cfe0b41a0

                            SHA1

                            643d6b8bb8a38187711b6fe8a16806debd274c68

                            SHA256

                            33b318b9a8752c39d56c842ee1d82dc01ee6f495ff7304f1ed81da18bacdcda0

                            SHA512

                            6b7add23631f303387de82357c9fa29ba4f7deec184b18e58123d172ae6afdefd19cf4d336c16ed4e5c561e55a2420b65d34ddae00c69ea555ef428f5cfd0261

                          • C:\Users\Admin\AppData\Local\Temp\EEE4.exe
                            Filesize

                            401KB

                            MD5

                            37980aee9719695d908aa93cfe0b41a0

                            SHA1

                            643d6b8bb8a38187711b6fe8a16806debd274c68

                            SHA256

                            33b318b9a8752c39d56c842ee1d82dc01ee6f495ff7304f1ed81da18bacdcda0

                            SHA512

                            6b7add23631f303387de82357c9fa29ba4f7deec184b18e58123d172ae6afdefd19cf4d336c16ed4e5c561e55a2420b65d34ddae00c69ea555ef428f5cfd0261

                          • C:\Users\Admin\AppData\Local\Temp\EEE4.exe
                            Filesize

                            401KB

                            MD5

                            37980aee9719695d908aa93cfe0b41a0

                            SHA1

                            643d6b8bb8a38187711b6fe8a16806debd274c68

                            SHA256

                            33b318b9a8752c39d56c842ee1d82dc01ee6f495ff7304f1ed81da18bacdcda0

                            SHA512

                            6b7add23631f303387de82357c9fa29ba4f7deec184b18e58123d172ae6afdefd19cf4d336c16ed4e5c561e55a2420b65d34ddae00c69ea555ef428f5cfd0261

                          • memory/776-221-0x0000000000570000-0x0000000000578000-memory.dmp
                            Filesize

                            32KB

                          • memory/776-210-0x0000000000000000-mapping.dmp
                          • memory/776-211-0x0000000000570000-0x0000000000578000-memory.dmp
                            Filesize

                            32KB

                          • memory/776-212-0x0000000000560000-0x000000000056B000-memory.dmp
                            Filesize

                            44KB

                          • memory/1128-137-0x0000000000000000-mapping.dmp
                          • memory/1388-197-0x00000000008D0000-0x00000000008DC000-memory.dmp
                            Filesize

                            48KB

                          • memory/1388-196-0x00000000008E0000-0x00000000008E6000-memory.dmp
                            Filesize

                            24KB

                          • memory/1388-189-0x0000000000000000-mapping.dmp
                          • memory/1388-216-0x00000000008E0000-0x00000000008E6000-memory.dmp
                            Filesize

                            24KB

                          • memory/1556-136-0x0000000000400000-0x000000000045A000-memory.dmp
                            Filesize

                            360KB

                          • memory/1556-135-0x0000000000817000-0x000000000082C000-memory.dmp
                            Filesize

                            84KB

                          • memory/1556-134-0x0000000000400000-0x000000000045A000-memory.dmp
                            Filesize

                            360KB

                          • memory/1556-132-0x0000000000817000-0x000000000082C000-memory.dmp
                            Filesize

                            84KB

                          • memory/1556-133-0x0000000000030000-0x0000000000039000-memory.dmp
                            Filesize

                            36KB

                          • memory/2428-195-0x0000000000000000-mapping.dmp
                          • memory/2452-174-0x00000000004C0000-0x00000000004CF000-memory.dmp
                            Filesize

                            60KB

                          • memory/2452-173-0x00000000004D0000-0x00000000004D9000-memory.dmp
                            Filesize

                            36KB

                          • memory/2452-172-0x0000000000000000-mapping.dmp
                          • memory/2452-214-0x00000000004D0000-0x00000000004D9000-memory.dmp
                            Filesize

                            36KB

                          • memory/2584-194-0x0000000000400000-0x000000000045F000-memory.dmp
                            Filesize

                            380KB

                          • memory/2584-140-0x0000000000000000-mapping.dmp
                          • memory/2584-141-0x0000000000400000-0x000000000045F000-memory.dmp
                            Filesize

                            380KB

                          • memory/2584-143-0x0000000000400000-0x000000000045F000-memory.dmp
                            Filesize

                            380KB

                          • memory/2584-144-0x0000000000400000-0x000000000045F000-memory.dmp
                            Filesize

                            380KB

                          • memory/2584-145-0x0000000000400000-0x000000000045F000-memory.dmp
                            Filesize

                            380KB

                          • memory/2584-146-0x0000000061E00000-0x0000000061EF3000-memory.dmp
                            Filesize

                            972KB

                          • memory/2612-201-0x0000000000000000-mapping.dmp
                          • memory/2612-202-0x0000000000D80000-0x0000000000D85000-memory.dmp
                            Filesize

                            20KB

                          • memory/2612-203-0x0000000000D70000-0x0000000000D79000-memory.dmp
                            Filesize

                            36KB

                          • memory/2612-218-0x0000000000D80000-0x0000000000D85000-memory.dmp
                            Filesize

                            20KB

                          • memory/2748-193-0x0000000000000000-mapping.dmp
                          • memory/3488-164-0x0000000000000000-mapping.dmp
                          • memory/4212-192-0x0000000000E00000-0x000000000120F000-memory.dmp
                            Filesize

                            4.1MB

                          • memory/4212-177-0x0000000000E00000-0x000000000120F000-memory.dmp
                            Filesize

                            4.1MB

                          • memory/4212-176-0x0000000000000000-mapping.dmp
                          • memory/4436-169-0x0000000000000000-mapping.dmp
                          • memory/4436-213-0x0000000000D10000-0x0000000000D17000-memory.dmp
                            Filesize

                            28KB

                          • memory/4436-170-0x0000000000D10000-0x0000000000D17000-memory.dmp
                            Filesize

                            28KB

                          • memory/4436-171-0x0000000000D00000-0x0000000000D0B000-memory.dmp
                            Filesize

                            44KB

                          • memory/4488-220-0x0000000000AB0000-0x0000000000AB7000-memory.dmp
                            Filesize

                            28KB

                          • memory/4488-207-0x0000000000000000-mapping.dmp
                          • memory/4488-208-0x0000000000AB0000-0x0000000000AB7000-memory.dmp
                            Filesize

                            28KB

                          • memory/4488-209-0x0000000000AA0000-0x0000000000AAD000-memory.dmp
                            Filesize

                            52KB

                          • memory/4504-185-0x0000000001240000-0x0000000001245000-memory.dmp
                            Filesize

                            20KB

                          • memory/4504-215-0x0000000001240000-0x0000000001245000-memory.dmp
                            Filesize

                            20KB

                          • memory/4504-187-0x0000000001230000-0x0000000001239000-memory.dmp
                            Filesize

                            36KB

                          • memory/4504-175-0x0000000000000000-mapping.dmp
                          • memory/4588-200-0x0000000000E40000-0x0000000000E67000-memory.dmp
                            Filesize

                            156KB

                          • memory/4588-199-0x0000000000E70000-0x0000000000E92000-memory.dmp
                            Filesize

                            136KB

                          • memory/4588-217-0x0000000000E70000-0x0000000000E92000-memory.dmp
                            Filesize

                            136KB

                          • memory/4588-198-0x0000000000000000-mapping.dmp
                          • memory/4708-205-0x0000000000570000-0x0000000000576000-memory.dmp
                            Filesize

                            24KB

                          • memory/4708-206-0x0000000000560000-0x000000000056B000-memory.dmp
                            Filesize

                            44KB

                          • memory/4708-204-0x0000000000000000-mapping.dmp
                          • memory/4708-219-0x0000000000570000-0x0000000000576000-memory.dmp
                            Filesize

                            24KB