Analysis

  • max time kernel
    113s
  • max time network
    155s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    03-07-2022 09:12

General

  • Target

    b5fcb373c4e4837606464220b2c802dfd4b7cdb8370c4506515975a52821ce07.exe

  • Size

    1.2MB

  • MD5

    403930f107d2434601bdf5ed6c057a05

  • SHA1

    674639514389fed43f2288e1a5b0637a53568df3

  • SHA256

    b5fcb373c4e4837606464220b2c802dfd4b7cdb8370c4506515975a52821ce07

  • SHA512

    efb64c515adedf212e38112dc68d20b1d7b2acdf4db3e20c9051ae38e6014469aa6d9bb2cd4e3f0e122fb62294c2b74771ac3a3a2e4e955a347dffdbee3d3cf7

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    awesome.fela@yandex.com
  • Password:
    inJesusname1

Signatures

  • HawkEye

    HawkEye is a malware kit that has seen continuous development since at least 2013.

  • NanoCore

    NanoCore is a remote access tool (RAT) with a variety of capabilities.

  • NirSoft MailPassView 8 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 8 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 13 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 4 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 4 IoCs
  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Looks up external IP address via web service 3 IoCs

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

  • Suspicious use of SetThreadContext 3 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: SetClipboardViewer 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b5fcb373c4e4837606464220b2c802dfd4b7cdb8370c4506515975a52821ce07.exe
    "C:\Users\Admin\AppData\Local\Temp\b5fcb373c4e4837606464220b2c802dfd4b7cdb8370c4506515975a52821ce07.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:304
    • C:\Users\Admin\AppData\Local\Temp\test.exe.exe
      "C:\Users\Admin\AppData\Local\Temp\test.exe.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:1944
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"
        3⤵
        • Accesses Microsoft Outlook accounts
        PID:1960
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
        C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"
        3⤵
          PID:632
      • C:\Windows\SysWOW64\WScript.exe
        "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\subfolder\filemgr.vbs"
        2⤵
        • Adds Run key to start application
        PID:1928
      • C:\Users\Admin\AppData\Local\Temp\subfolder\filemgr.scr
        "C:\Users\Admin\AppData\Local\Temp\subfolder\filemgr.scr" /S
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1208
        • C:\Users\Admin\AppData\Local\Temp\subfolder\filemgr.scr
          C:\Users\Admin\AppData\Local\Temp\subfolder\filemgr.scr" /S
          3⤵
          • Executes dropped EXE
          • Adds Run key to start application
          • Checks whether UAC is enabled
          • Drops file in Program Files directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: SetClipboardViewer
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of UnmapMainImage
          • Suspicious use of WriteProcessMemory
          PID:2028
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks.exe" /create /f /tn "DSL Service" /xml "C:\Users\Admin\AppData\Local\Temp\tmpCFBE.tmp"
            4⤵
            • Creates scheduled task(s)
            PID:1700
          • C:\Windows\SysWOW64\schtasks.exe
            "schtasks.exe" /create /f /tn "DSL Service Task" /xml "C:\Users\Admin\AppData\Local\Temp\tmpDBE0.tmp"
            4⤵
            • Creates scheduled task(s)
            PID:920

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Execution

    Scripting

    1
    T1064

    Scheduled Task

    1
    T1053

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Scheduled Task

    1
    T1053

    Privilege Escalation

    Scheduled Task

    1
    T1053

    Defense Evasion

    Scripting

    1
    T1064

    Modify Registry

    1
    T1112

    Discovery

    System Information Discovery

    2
    T1082

    Collection

    Email Collection

    1
    T1114

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\holderwb.txt
      Filesize

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

    • C:\Users\Admin\AppData\Local\Temp\subfolder\filemgr.scr
      Filesize

      1.2MB

      MD5

      403930f107d2434601bdf5ed6c057a05

      SHA1

      674639514389fed43f2288e1a5b0637a53568df3

      SHA256

      b5fcb373c4e4837606464220b2c802dfd4b7cdb8370c4506515975a52821ce07

      SHA512

      efb64c515adedf212e38112dc68d20b1d7b2acdf4db3e20c9051ae38e6014469aa6d9bb2cd4e3f0e122fb62294c2b74771ac3a3a2e4e955a347dffdbee3d3cf7

    • C:\Users\Admin\AppData\Local\Temp\subfolder\filemgr.scr
      Filesize

      1.2MB

      MD5

      403930f107d2434601bdf5ed6c057a05

      SHA1

      674639514389fed43f2288e1a5b0637a53568df3

      SHA256

      b5fcb373c4e4837606464220b2c802dfd4b7cdb8370c4506515975a52821ce07

      SHA512

      efb64c515adedf212e38112dc68d20b1d7b2acdf4db3e20c9051ae38e6014469aa6d9bb2cd4e3f0e122fb62294c2b74771ac3a3a2e4e955a347dffdbee3d3cf7

    • C:\Users\Admin\AppData\Local\Temp\subfolder\filemgr.scr
      Filesize

      1.2MB

      MD5

      403930f107d2434601bdf5ed6c057a05

      SHA1

      674639514389fed43f2288e1a5b0637a53568df3

      SHA256

      b5fcb373c4e4837606464220b2c802dfd4b7cdb8370c4506515975a52821ce07

      SHA512

      efb64c515adedf212e38112dc68d20b1d7b2acdf4db3e20c9051ae38e6014469aa6d9bb2cd4e3f0e122fb62294c2b74771ac3a3a2e4e955a347dffdbee3d3cf7

    • C:\Users\Admin\AppData\Local\Temp\subfolder\filemgr.vbs
      Filesize

      1024B

      MD5

      4e980196cd8e8c7a9b012281f1ef7a0a

      SHA1

      b99e0a492a63d9d1434fd9cd47f97ac93ab64ffa

      SHA256

      1d678cd10989ecc6b139d3e7abee2ad5f8fb5e4ac15b43cdd794fea6615c512c

      SHA512

      fbfb264dbbf6f71dc8d550afed476b6dc6994710e94d8594d3643d24be6ad3585cefd87ff143c8e8d5679708b7b0c35a4af25d70bb5a6530b82f51b6a686fe66

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

      520KB

      MD5

      76cca11696a4dc301f0efab653a07b38

      SHA1

      39861a65d4704f33778c217b85a1d80baf4dbe72

      SHA256

      4f98e23f3897db247c1e19108f6cb97b33ecbc83b6a40e76b20e3912c76080c8

      SHA512

      e3f0fa3c46b64d254a86abed97e94b5d438ba211c7b4a57a2baf8692718d44cee5d6d3e6d9fc60efc3d767bf02240bb9ba07b6c4ab83861e5f7e3732ea8d4f7f

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

      520KB

      MD5

      76cca11696a4dc301f0efab653a07b38

      SHA1

      39861a65d4704f33778c217b85a1d80baf4dbe72

      SHA256

      4f98e23f3897db247c1e19108f6cb97b33ecbc83b6a40e76b20e3912c76080c8

      SHA512

      e3f0fa3c46b64d254a86abed97e94b5d438ba211c7b4a57a2baf8692718d44cee5d6d3e6d9fc60efc3d767bf02240bb9ba07b6c4ab83861e5f7e3732ea8d4f7f

    • C:\Users\Admin\AppData\Local\Temp\tmpCFBE.tmp
      Filesize

      1KB

      MD5

      eac26a063c2f289cd1062579b6079073

      SHA1

      b1cd3470849772cbeee47424557212b0e94b1bb4

      SHA256

      8b646dae0c439687ed02f8e5a50dfc7c7a3f994687dc514b9a3c488f86969d52

      SHA512

      1ba80a6466b9f71141e7523986f3bc0cbde95479c1b3a5ba4929be7f4699981727dbcca380e166a1607766b5447fcddae7f466e043774f3b2e806a98bfb5ae29

    • \Users\Admin\AppData\Local\Temp\subfolder\filemgr.scr
      Filesize

      1.2MB

      MD5

      403930f107d2434601bdf5ed6c057a05

      SHA1

      674639514389fed43f2288e1a5b0637a53568df3

      SHA256

      b5fcb373c4e4837606464220b2c802dfd4b7cdb8370c4506515975a52821ce07

      SHA512

      efb64c515adedf212e38112dc68d20b1d7b2acdf4db3e20c9051ae38e6014469aa6d9bb2cd4e3f0e122fb62294c2b74771ac3a3a2e4e955a347dffdbee3d3cf7

    • \Users\Admin\AppData\Local\Temp\subfolder\filemgr.scr
      Filesize

      1.2MB

      MD5

      403930f107d2434601bdf5ed6c057a05

      SHA1

      674639514389fed43f2288e1a5b0637a53568df3

      SHA256

      b5fcb373c4e4837606464220b2c802dfd4b7cdb8370c4506515975a52821ce07

      SHA512

      efb64c515adedf212e38112dc68d20b1d7b2acdf4db3e20c9051ae38e6014469aa6d9bb2cd4e3f0e122fb62294c2b74771ac3a3a2e4e955a347dffdbee3d3cf7

    • \Users\Admin\AppData\Local\Temp\subfolder\filemgr.scr
      Filesize

      1.2MB

      MD5

      403930f107d2434601bdf5ed6c057a05

      SHA1

      674639514389fed43f2288e1a5b0637a53568df3

      SHA256

      b5fcb373c4e4837606464220b2c802dfd4b7cdb8370c4506515975a52821ce07

      SHA512

      efb64c515adedf212e38112dc68d20b1d7b2acdf4db3e20c9051ae38e6014469aa6d9bb2cd4e3f0e122fb62294c2b74771ac3a3a2e4e955a347dffdbee3d3cf7

    • \Users\Admin\AppData\Local\Temp\test.exe.exe
      Filesize

      520KB

      MD5

      76cca11696a4dc301f0efab653a07b38

      SHA1

      39861a65d4704f33778c217b85a1d80baf4dbe72

      SHA256

      4f98e23f3897db247c1e19108f6cb97b33ecbc83b6a40e76b20e3912c76080c8

      SHA512

      e3f0fa3c46b64d254a86abed97e94b5d438ba211c7b4a57a2baf8692718d44cee5d6d3e6d9fc60efc3d767bf02240bb9ba07b6c4ab83861e5f7e3732ea8d4f7f

    • memory/304-56-0x0000000000260000-0x0000000000266000-memory.dmp
      Filesize

      24KB

    • memory/304-69-0x0000000077410000-0x0000000077590000-memory.dmp
      Filesize

      1.5MB

    • memory/304-58-0x0000000077410000-0x0000000077590000-memory.dmp
      Filesize

      1.5MB

    • memory/304-57-0x0000000075311000-0x0000000075313000-memory.dmp
      Filesize

      8KB

    • memory/632-100-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/632-106-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/632-101-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/632-97-0x0000000000442628-mapping.dmp
    • memory/632-96-0x0000000000400000-0x0000000000458000-memory.dmp
      Filesize

      352KB

    • memory/920-104-0x0000000000000000-mapping.dmp
    • memory/1208-81-0x0000000077410000-0x0000000077590000-memory.dmp
      Filesize

      1.5MB

    • memory/1208-66-0x0000000000000000-mapping.dmp
    • memory/1700-102-0x0000000000000000-mapping.dmp
    • memory/1928-63-0x0000000000000000-mapping.dmp
    • memory/1944-60-0x0000000000000000-mapping.dmp
    • memory/1944-74-0x00000000740A0000-0x000000007464B000-memory.dmp
      Filesize

      5.7MB

    • memory/1944-107-0x00000000002E5000-0x00000000002F6000-memory.dmp
      Filesize

      68KB

    • memory/1944-75-0x00000000740A0000-0x000000007464B000-memory.dmp
      Filesize

      5.7MB

    • memory/1944-85-0x00000000002E5000-0x00000000002F6000-memory.dmp
      Filesize

      68KB

    • memory/1960-87-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1960-83-0x0000000000411654-mapping.dmp
    • memory/1960-88-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1960-111-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/1960-82-0x0000000000400000-0x000000000041B000-memory.dmp
      Filesize

      108KB

    • memory/2028-94-0x00000000740A0000-0x000000007464B000-memory.dmp
      Filesize

      5.7MB

    • memory/2028-95-0x0000000008930000-0x00000000090CC000-memory.dmp
      Filesize

      7.6MB

    • memory/2028-90-0x0000000000400000-0x0000000000451000-memory.dmp
      Filesize

      324KB

    • memory/2028-92-0x0000000077410000-0x0000000077590000-memory.dmp
      Filesize

      1.5MB

    • memory/2028-93-0x0000000077410000-0x0000000077590000-memory.dmp
      Filesize

      1.5MB

    • memory/2028-108-0x0000000077410000-0x0000000077590000-memory.dmp
      Filesize

      1.5MB

    • memory/2028-109-0x0000000077410000-0x0000000077590000-memory.dmp
      Filesize

      1.5MB

    • memory/2028-110-0x00000000740A0000-0x000000007464B000-memory.dmp
      Filesize

      5.7MB

    • memory/2028-79-0x0000000000512BEF-mapping.dmp