Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    28-11-2022 10:38

General

  • Target

    284d5054b870aa65a74bf61eccb5a26ddac39b7ea74d01b75d3b58511ba5664c.exe

  • Size

    912KB

  • MD5

    fe53937c6e56a168967d32d99909d8d5

  • SHA1

    a7e0cb24994667ab405c9721ab100083ec7ea063

  • SHA256

    284d5054b870aa65a74bf61eccb5a26ddac39b7ea74d01b75d3b58511ba5664c

  • SHA512

    c858d922032766a723a2185ed2ecaf6d61c631b7efdb7e6ba1bb716cd2c1d05fd8f7736f943732c0ff7fabae178abca2443f8f5c0d60c9e9e1e16d858e9b0551

  • SSDEEP

    12288:lOZMFIoIieG1IA/QbrT5Jmo6stpj58OE4O77JSWMwnOZMSSRHm+yWy0:EeI2eCIA6b7j58OCJBhOZMSSm+Xy

Malware Config

Signatures

  • NirSoft MailPassView 5 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 4 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 9 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies Internet Explorer settings 1 TTPs 34 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: RenamesItself 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\284d5054b870aa65a74bf61eccb5a26ddac39b7ea74d01b75d3b58511ba5664c.exe
    "C:\Users\Admin\AppData\Local\Temp\284d5054b870aa65a74bf61eccb5a26ddac39b7ea74d01b75d3b58511ba5664c.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1408
    • C:\Users\Admin\AppData\Local\Temp\284d5054b870aa65a74bf61eccb5a26ddac39b7ea74d01b75d3b58511ba5664c.exe
      "C:\Users\Admin\AppData\Local\Temp\284d5054b870aa65a74bf61eccb5a26ddac39b7ea74d01b75d3b58511ba5664c.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:672
      • C:\Program Files\Internet Explorer\iexplore.exe
        "C:\Program Files\Internet Explorer\iexplore.exe" http://go.microsoft.com/fwlink/?prd=11324&pver=4.5&sbp=AppLaunch2&plcid=0x409&o1=SHIM_NOVERSION_FOUND&version=(null)&processName=284d5054b870aa65a74bf61eccb5a26ddac39b7ea74d01b75d3b58511ba5664c.exe&platform=0009&osver=5&isServer=0&shimver=4.0.30319.0
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious use of FindShellTrayWindow
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1652
        • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
          "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1652 CREDAT:275457 /prefetch:2
          4⤵
          • Modifies Internet Explorer settings
          • Suspicious use of SetWindowsHookEx
          PID:564
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\takshost.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\takshost.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1804
      • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\takshost.exe
        "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\takshost.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: RenamesItself
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:1656
        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\takshost.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\takshost.exe" /stext C:\ProgramData\Mails.txt
          4⤵
          • Accesses Microsoft Outlook accounts
          PID:1964
        • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\takshost.exe
          "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\takshost.exe" /stext C:\ProgramData\Browsers.txt
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:1928

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

System Information Discovery

1
T1082

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\Browsers.txt
    Filesize

    2B

    MD5

    f3b25701fe362ec84616a93a45ce9998

    SHA1

    d62636d8caec13f04e28442a0a6fa1afeb024bbb

    SHA256

    b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

    SHA512

    98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Cookies\9G68GAZY.txt
    Filesize

    595B

    MD5

    25bf79774ac46a1c93e1584f652e4260

    SHA1

    765344ddc6ec410e8f8d15a7c8a1ab09a16215c5

    SHA256

    8acb8cfefa6c8954d3dd5ccc678f0f6eab894caec3f549e5be2817cf508b34f0

    SHA512

    60fd15eb4e1aecf871c17d03e5f1fe9243620907d683c6cea14c870530598b7df4646aa4a67b22006279240738636752d0de5df04a9fba723bac72d633e809b5

  • memory/672-67-0x0000000000400000-0x000000000047E000-memory.dmp
    Filesize

    504KB

  • memory/672-57-0x0000000000400000-0x000000000047E000-memory.dmp
    Filesize

    504KB

  • memory/672-58-0x0000000000400000-0x000000000047E000-memory.dmp
    Filesize

    504KB

  • memory/672-60-0x0000000000400000-0x000000000047E000-memory.dmp
    Filesize

    504KB

  • memory/672-61-0x0000000000400000-0x000000000047E000-memory.dmp
    Filesize

    504KB

  • memory/672-62-0x0000000000400000-0x000000000047E000-memory.dmp
    Filesize

    504KB

  • memory/672-63-0x00000000004784FE-mapping.dmp
  • memory/672-65-0x0000000000400000-0x000000000047E000-memory.dmp
    Filesize

    504KB

  • memory/1408-54-0x00000000750A1000-0x00000000750A3000-memory.dmp
    Filesize

    8KB

  • memory/1408-55-0x0000000074290000-0x000000007483B000-memory.dmp
    Filesize

    5.7MB

  • memory/1408-70-0x0000000074290000-0x000000007483B000-memory.dmp
    Filesize

    5.7MB

  • memory/1408-56-0x0000000074290000-0x000000007483B000-memory.dmp
    Filesize

    5.7MB

  • memory/1656-80-0x00000000004784FE-mapping.dmp
  • memory/1656-119-0x0000000074290000-0x000000007483B000-memory.dmp
    Filesize

    5.7MB

  • memory/1656-97-0x0000000074290000-0x000000007483B000-memory.dmp
    Filesize

    5.7MB

  • memory/1804-73-0x0000000074290000-0x000000007483B000-memory.dmp
    Filesize

    5.7MB

  • memory/1804-84-0x0000000074290000-0x000000007483B000-memory.dmp
    Filesize

    5.7MB

  • memory/1804-71-0x0000000074290000-0x000000007483B000-memory.dmp
    Filesize

    5.7MB

  • memory/1804-68-0x0000000000000000-mapping.dmp
  • memory/1928-106-0x0000000000400000-0x0000000000459000-memory.dmp
    Filesize

    356KB

  • memory/1928-108-0x0000000000400000-0x0000000000459000-memory.dmp
    Filesize

    356KB

  • memory/1928-117-0x0000000000400000-0x0000000000459000-memory.dmp
    Filesize

    356KB

  • memory/1928-116-0x0000000000400000-0x0000000000459000-memory.dmp
    Filesize

    356KB

  • memory/1928-113-0x0000000000442F58-mapping.dmp
  • memory/1928-112-0x0000000000400000-0x0000000000459000-memory.dmp
    Filesize

    356KB

  • memory/1928-110-0x0000000000400000-0x0000000000459000-memory.dmp
    Filesize

    356KB

  • memory/1928-103-0x0000000000400000-0x0000000000459000-memory.dmp
    Filesize

    356KB

  • memory/1928-104-0x0000000000400000-0x0000000000459000-memory.dmp
    Filesize

    356KB

  • memory/1964-101-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/1964-90-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/1964-102-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/1964-93-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/1964-100-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/1964-95-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/1964-96-0x0000000000411714-mapping.dmp
  • memory/1964-92-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/1964-88-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB

  • memory/1964-87-0x0000000000400000-0x000000000041B000-memory.dmp
    Filesize

    108KB