Analysis

  • max time kernel
    125s
  • max time network
    128s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    22-12-2020 12:26

General

  • Target

    f95499c80559ccac5978dd8f9fc92f58.exe

  • Size

    30KB

  • MD5

    f95499c80559ccac5978dd8f9fc92f58

  • SHA1

    ff3c434bd32f2e61825f2b67a5f6cbde895308ef

  • SHA256

    ada3714cc9e7f34831ddfff655f7a8d0c0a959d686b06fa347bf659f4e719ed7

  • SHA512

    91d9c7bbf4752c5a9e303317b0c238fbe0916e9bc0b6b4b313e020e16f53ff6393f20cade3441a64be8ae91194a45e8a04c17632074db723600aa6f65c9fe089

Malware Config

Signatures

  • Raccoon

    Simple but powerful infostealer which was very active in 2019.

  • Turns off Windows Defender SpyNet reporting 2 TTPs
  • Windows security bypass 2 TTPs
  • Loads dropped DLL 6 IoCs
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Windows security modification 2 TTPs 10 IoCs
  • Checks installed software on the system 1 TTPs

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

  • JavaScript code in executable 1 IoCs
  • Legitimate hosting services abused for malware hosting/C2 1 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Delays execution with timeout.exe 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f95499c80559ccac5978dd8f9fc92f58.exe
    "C:\Users\Admin\AppData\Local\Temp\f95499c80559ccac5978dd8f9fc92f58.exe"
    1⤵
    • Windows security modification
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1304
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c timeout 4.827
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1128
      • C:\Windows\SysWOW64\timeout.exe
        timeout 4.827
        3⤵
        • Delays execution with timeout.exe
        PID:3588
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\f95499c80559ccac5978dd8f9fc92f58.exe" -Force
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:352
    • C:\Users\Admin\AppData\Local\Temp\f95499c80559ccac5978dd8f9fc92f58.exe
      "C:\Users\Admin\AppData\Local\Temp\f95499c80559ccac5978dd8f9fc92f58.exe"
      2⤵
        PID:1140
      • C:\Users\Admin\AppData\Local\Temp\f95499c80559ccac5978dd8f9fc92f58.exe
        "C:\Users\Admin\AppData\Local\Temp\f95499c80559ccac5978dd8f9fc92f58.exe"
        2⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:2412
        • C:\Windows\SysWOW64\cmd.exe
          cmd.exe /C timeout /T 10 /NOBREAK > Nul & Del /f /q "C:\Users\Admin\AppData\Local\Temp\f95499c80559ccac5978dd8f9fc92f58.exe"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:508
          • C:\Windows\SysWOW64\timeout.exe
            timeout /T 10 /NOBREAK
            4⤵
            • Delays execution with timeout.exe
            PID:4024

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Defense Evasion

    Disabling Security Tools

    3
    T1089

    Modify Registry

    3
    T1112

    Credential Access

    Credentials in Files

    2
    T1081

    Discovery

    Query Registry

    1
    T1012

    Collection

    Data from Local System

    2
    T1005

    Command and Control

    Web Service

    1
    T1102

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • \Users\Admin\AppData\LocalLow\nb98wqnehe8bw89hb\freebl3.dll
      MD5

      60acd24430204ad2dc7f148b8cfe9bdc

      SHA1

      989f377b9117d7cb21cbe92a4117f88f9c7693d9

      SHA256

      9876c53134dbbec4dcca67581f53638eba3fea3a15491aa3cf2526b71032da97

      SHA512

      626c36e9567f57fa8ec9c36d96cbadede9c6f6734a7305ecfb9f798952bbacdfa33a1b6c4999ba5b78897dc2ec6f91870f7ec25b2ceacbaee4be942fe881db01

    • \Users\Admin\AppData\LocalLow\nb98wqnehe8bw89hb\freebl3.dll
      MD5

      60acd24430204ad2dc7f148b8cfe9bdc

      SHA1

      989f377b9117d7cb21cbe92a4117f88f9c7693d9

      SHA256

      9876c53134dbbec4dcca67581f53638eba3fea3a15491aa3cf2526b71032da97

      SHA512

      626c36e9567f57fa8ec9c36d96cbadede9c6f6734a7305ecfb9f798952bbacdfa33a1b6c4999ba5b78897dc2ec6f91870f7ec25b2ceacbaee4be942fe881db01

    • \Users\Admin\AppData\LocalLow\nb98wqnehe8bw89hb\mozglue.dll
      MD5

      eae9273f8cdcf9321c6c37c244773139

      SHA1

      8378e2a2f3635574c106eea8419b5eb00b8489b0

      SHA256

      a0c6630d4012ae0311ff40f4f06911bcf1a23f7a4762ce219b8dffa012d188cc

      SHA512

      06e43e484a89cea9ba9b9519828d38e7c64b040f44cdaeb321cbda574e7551b11fea139ce3538f387a0a39a3d8c4cba7f4cf03e4a3c98db85f8121c2212a9097

    • \Users\Admin\AppData\LocalLow\nb98wqnehe8bw89hb\nss3.dll
      MD5

      02cc7b8ee30056d5912de54f1bdfc219

      SHA1

      a6923da95705fb81e368ae48f93d28522ef552fb

      SHA256

      1989526553fd1e1e49b0fea8036822ca062d3d39c4cab4a37846173d0f1753d5

      SHA512

      0d5dfcf4fb19b27246fa799e339d67cd1b494427783f379267fb2d10d615ffb734711bab2c515062c078f990a44a36f2d15859b1dacd4143dcc35b5c0cee0ef5

    • \Users\Admin\AppData\LocalLow\nb98wqnehe8bw89hb\softokn3.dll
      MD5

      4e8df049f3459fa94ab6ad387f3561ac

      SHA1

      06ed392bc29ad9d5fc05ee254c2625fd65925114

      SHA256

      25a4dae37120426ab060ebb39b7030b3e7c1093cc34b0877f223b6843b651871

      SHA512

      3dd4a86f83465989b2b30c240a7307edd1b92d5c1d5c57d47eff287dc9daa7bace157017908d82e00be90f08ff5badb68019ffc9d881440229dcea5038f61cd6

    • \Users\Admin\AppData\LocalLow\sqlite3.dll
      MD5

      f964811b68f9f1487c2b41e1aef576ce

      SHA1

      b423959793f14b1416bc3b7051bed58a1034025f

      SHA256

      83bc57dcf282264f2b00c21ce0339eac20fcb7401f7c5472c0cd0c014844e5f7

      SHA512

      565b1a7291c6fcb63205907fcd9e72fc2e11ca945afc4468c378edba882e2f314c2ac21a7263880ff7d4b84c2a1678024c1ac9971ac1c1de2bfa4248ec0f98c4

    • memory/352-11-0x0000000073C50000-0x000000007433E000-memory.dmp
      Filesize

      6.9MB

    • memory/352-25-0x0000000008FE0000-0x0000000009013000-memory.dmp
      Filesize

      204KB

    • memory/352-42-0x0000000009260000-0x0000000009261000-memory.dmp
      Filesize

      4KB

    • memory/352-12-0x0000000006880000-0x0000000006881000-memory.dmp
      Filesize

      4KB

    • memory/352-13-0x0000000006EF0000-0x0000000006EF1000-memory.dmp
      Filesize

      4KB

    • memory/352-14-0x0000000007590000-0x0000000007591000-memory.dmp
      Filesize

      4KB

    • memory/352-15-0x0000000007630000-0x0000000007631000-memory.dmp
      Filesize

      4KB

    • memory/352-16-0x0000000007880000-0x0000000007881000-memory.dmp
      Filesize

      4KB

    • memory/352-17-0x0000000007960000-0x0000000007961000-memory.dmp
      Filesize

      4KB

    • memory/352-18-0x0000000007700000-0x0000000007701000-memory.dmp
      Filesize

      4KB

    • memory/352-19-0x0000000007D40000-0x0000000007D41000-memory.dmp
      Filesize

      4KB

    • memory/352-38-0x0000000009270000-0x0000000009271000-memory.dmp
      Filesize

      4KB

    • memory/352-35-0x00000000092C0000-0x00000000092C1000-memory.dmp
      Filesize

      4KB

    • memory/352-33-0x0000000009110000-0x0000000009111000-memory.dmp
      Filesize

      4KB

    • memory/352-23-0x0000000008050000-0x0000000008051000-memory.dmp
      Filesize

      4KB

    • memory/352-10-0x0000000000000000-mapping.dmp
    • memory/352-32-0x0000000008FA0000-0x0000000008FA1000-memory.dmp
      Filesize

      4KB

    • memory/508-45-0x0000000000000000-mapping.dmp
    • memory/1128-6-0x0000000000000000-mapping.dmp
    • memory/1304-9-0x0000000008710000-0x0000000008711000-memory.dmp
      Filesize

      4KB

    • memory/1304-8-0x0000000006D60000-0x0000000006E02000-memory.dmp
      Filesize

      648KB

    • memory/1304-5-0x0000000004E60000-0x0000000004E61000-memory.dmp
      Filesize

      4KB

    • memory/1304-3-0x0000000000630000-0x0000000000631000-memory.dmp
      Filesize

      4KB

    • memory/1304-2-0x0000000073C50000-0x000000007433E000-memory.dmp
      Filesize

      6.9MB

    • memory/2412-22-0x0000000000400000-0x0000000000494000-memory.dmp
      Filesize

      592KB

    • memory/2412-20-0x0000000000400000-0x0000000000494000-memory.dmp
      Filesize

      592KB

    • memory/2412-21-0x000000000043FA56-mapping.dmp
    • memory/3588-7-0x0000000000000000-mapping.dmp
    • memory/4024-46-0x0000000000000000-mapping.dmp