Analysis

  • max time kernel
    162s
  • max time network
    173s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    11/10/2022, 08:47

General

  • Target

    Purchase Order No.002548.pdf.js

  • Size

    386KB

  • MD5

    8f1ed7462dc08d0897aa79afcf256925

  • SHA1

    cbd38c7cb35f8d5f0afd542dc939dad41806f717

  • SHA256

    6297ad7d2e748eb48b9572a3702188eeb569aad21afc52e0aa813df2294683cb

  • SHA512

    68cc0ca0c833415d3e75d4147bbbb550975622f773dd92e5120e4c8e8907651932eb0367496d2bb43af1fc5d1b1104587d9710df1b3fccfe98dc54c5acda76ce

  • SSDEEP

    6144:SX3RPvIgjpK1By+Z7lgwf0wNLrfoPeQhdREF3Tu:ONISifsekEdu

Malware Config

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Vjw0rm

    Vjw0rm is a remote access trojan written in JavaScript.

  • Blocklisted process makes network request 5 IoCs
  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Drops startup file 2 IoCs
  • Loads dropped DLL 5 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Windows\system32\wscript.exe
    wscript.exe "C:\Users\Admin\AppData\Local\Temp\Purchase Order No.002548.pdf.js"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:864
    • C:\Windows\System32\wscript.exe
      "C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\HnfkCWUlzy.js"
      2⤵
      • Blocklisted process makes network request
      • Drops startup file
      PID:624
    • C:\Users\Admin\AppData\Roaming\DeGrace.exe
      "C:\Users\Admin\AppData\Roaming\DeGrace.exe"
      2⤵
      • Drops file in Drivers directory
      • Executes dropped EXE
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:1544
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 1544 -s 1312
        3⤵
        • Loads dropped DLL
        • Program crash
        PID:1260

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\DeGrace.exe

    Filesize

    210KB

    MD5

    a7b2ef440655ae44c0647416f94b0cf5

    SHA1

    d2965894cc58ae8ef26360c08c99dcf08b161af1

    SHA256

    51d922caf11a1956e6b46e55649826692b5226412d643c386dacdbcdc89bd34a

    SHA512

    be962aa707f7597014c762ee822b97162e92ed664bcf2e56d266f501b1f1f077a2f9e9bdf8361cf8df8ceb2d53224fc96c5557af258020da863f725f9ebf34f0

  • C:\Users\Admin\AppData\Roaming\DeGrace.exe

    Filesize

    210KB

    MD5

    a7b2ef440655ae44c0647416f94b0cf5

    SHA1

    d2965894cc58ae8ef26360c08c99dcf08b161af1

    SHA256

    51d922caf11a1956e6b46e55649826692b5226412d643c386dacdbcdc89bd34a

    SHA512

    be962aa707f7597014c762ee822b97162e92ed664bcf2e56d266f501b1f1f077a2f9e9bdf8361cf8df8ceb2d53224fc96c5557af258020da863f725f9ebf34f0

  • C:\Users\Admin\AppData\Roaming\HnfkCWUlzy.js

    Filesize

    5KB

    MD5

    c380d34c94785eed466d83b8945f61b5

    SHA1

    82ddafdfa6559334bb734fdc38de4b09b3a1d7e0

    SHA256

    9b7dbb2f7e53e0b6b6b0a439162aee7683acd0e3cade06e1050762c319b02474

    SHA512

    955d6fd6f747c6af8b0b3638e73dac65ce5676e66daf1c8c572530ba8a52dcd11d176454c8c5293b06a8d102db93250a764a24034bcc44c0ca50bf3e054b8379

  • \Users\Admin\AppData\Roaming\DeGrace.exe

    Filesize

    210KB

    MD5

    a7b2ef440655ae44c0647416f94b0cf5

    SHA1

    d2965894cc58ae8ef26360c08c99dcf08b161af1

    SHA256

    51d922caf11a1956e6b46e55649826692b5226412d643c386dacdbcdc89bd34a

    SHA512

    be962aa707f7597014c762ee822b97162e92ed664bcf2e56d266f501b1f1f077a2f9e9bdf8361cf8df8ceb2d53224fc96c5557af258020da863f725f9ebf34f0

  • \Users\Admin\AppData\Roaming\DeGrace.exe

    Filesize

    210KB

    MD5

    a7b2ef440655ae44c0647416f94b0cf5

    SHA1

    d2965894cc58ae8ef26360c08c99dcf08b161af1

    SHA256

    51d922caf11a1956e6b46e55649826692b5226412d643c386dacdbcdc89bd34a

    SHA512

    be962aa707f7597014c762ee822b97162e92ed664bcf2e56d266f501b1f1f077a2f9e9bdf8361cf8df8ceb2d53224fc96c5557af258020da863f725f9ebf34f0

  • \Users\Admin\AppData\Roaming\DeGrace.exe

    Filesize

    210KB

    MD5

    a7b2ef440655ae44c0647416f94b0cf5

    SHA1

    d2965894cc58ae8ef26360c08c99dcf08b161af1

    SHA256

    51d922caf11a1956e6b46e55649826692b5226412d643c386dacdbcdc89bd34a

    SHA512

    be962aa707f7597014c762ee822b97162e92ed664bcf2e56d266f501b1f1f077a2f9e9bdf8361cf8df8ceb2d53224fc96c5557af258020da863f725f9ebf34f0

  • \Users\Admin\AppData\Roaming\DeGrace.exe

    Filesize

    210KB

    MD5

    a7b2ef440655ae44c0647416f94b0cf5

    SHA1

    d2965894cc58ae8ef26360c08c99dcf08b161af1

    SHA256

    51d922caf11a1956e6b46e55649826692b5226412d643c386dacdbcdc89bd34a

    SHA512

    be962aa707f7597014c762ee822b97162e92ed664bcf2e56d266f501b1f1f077a2f9e9bdf8361cf8df8ceb2d53224fc96c5557af258020da863f725f9ebf34f0

  • \Users\Admin\AppData\Roaming\DeGrace.exe

    Filesize

    210KB

    MD5

    a7b2ef440655ae44c0647416f94b0cf5

    SHA1

    d2965894cc58ae8ef26360c08c99dcf08b161af1

    SHA256

    51d922caf11a1956e6b46e55649826692b5226412d643c386dacdbcdc89bd34a

    SHA512

    be962aa707f7597014c762ee822b97162e92ed664bcf2e56d266f501b1f1f077a2f9e9bdf8361cf8df8ceb2d53224fc96c5557af258020da863f725f9ebf34f0

  • memory/864-54-0x000007FEFC0D1000-0x000007FEFC0D3000-memory.dmp

    Filesize

    8KB

  • memory/1544-62-0x0000000076261000-0x0000000076263000-memory.dmp

    Filesize

    8KB

  • memory/1544-61-0x00000000003A0000-0x00000000003DA000-memory.dmp

    Filesize

    232KB