Analysis

  • max time kernel
    137s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    22-11-2022 19:41

General

  • Target

    4bd7075cfacf1940c00cb60328ee20190a618d38023e2cb35a302a3903435b5d.exe

  • Size

    744KB

  • MD5

    2a5c407e1e79a2291a6920a023eac0c3

  • SHA1

    7ac9bab12fd48ae21f59cdef5bb8e4fdb99f6f89

  • SHA256

    4bd7075cfacf1940c00cb60328ee20190a618d38023e2cb35a302a3903435b5d

  • SHA512

    5204916f50def7bcefebcb2dd33410e7af7ed952f64a3ad2da9cc495be85813d055692d3b469eb5094c0938ecc04d5f70bd9541e9ff824a76c3369661cbd6705

  • SSDEEP

    12288:8hvk3gqRvyIF0uR5vWPz6qQrKfDT3BwhmlI8Aq:gXOWL7zAq

Malware Config

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ftp.strato.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    220-bjcfrank

Signatures

  • HawkEye

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

  • NirSoft MailPassView 12 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 12 IoCs

    Password recovery tool for various web browsers

  • Nirsoft 17 IoCs
  • Executes dropped EXE 3 IoCs
  • Deletes itself 1 IoCs
  • Loads dropped DLL 3 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook accounts 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 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 51 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4bd7075cfacf1940c00cb60328ee20190a618d38023e2cb35a302a3903435b5d.exe
    "C:\Users\Admin\AppData\Local\Temp\4bd7075cfacf1940c00cb60328ee20190a618d38023e2cb35a302a3903435b5d.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1208
    • C:\Users\Admin\AppData\Local\Temp\4bd7075cfacf1940c00cb60328ee20190a618d38023e2cb35a302a3903435b5d.exe
      "C:\Users\Admin\AppData\Local\Temp\4bd7075cfacf1940c00cb60328ee20190a618d38023e2cb35a302a3903435b5d.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1072
      • C:\Users\Admin\AppData\Roaming\Windows Update.exe
        "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1996
        • C:\Users\Admin\AppData\Roaming\Windows Update.exe
          "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
          4⤵
          • Executes dropped EXE
          • Deletes itself
          • Suspicious use of SetThreadContext
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of WriteProcessMemory
          PID:572
          • 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"
            5⤵
            • Accesses Microsoft Outlook accounts
            PID:1884
          • 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"
            5⤵
              PID:1624

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\4bd7075cfacf1940c00cb60328ee20190a618d38023e2cb35a302a3903435b5d.exe

      Filesize

      744KB

      MD5

      2a5c407e1e79a2291a6920a023eac0c3

      SHA1

      7ac9bab12fd48ae21f59cdef5bb8e4fdb99f6f89

      SHA256

      4bd7075cfacf1940c00cb60328ee20190a618d38023e2cb35a302a3903435b5d

      SHA512

      5204916f50def7bcefebcb2dd33410e7af7ed952f64a3ad2da9cc495be85813d055692d3b469eb5094c0938ecc04d5f70bd9541e9ff824a76c3369661cbd6705

    • C:\Users\Admin\AppData\Local\Temp\SysInfo.txt

      Filesize

      102B

      MD5

      08dfe78a23bff0b52d763780e44f73c3

      SHA1

      428d48c72faa5dc82e6d75fa5349b5fc2ac67342

      SHA256

      49897a931cad89156ab5c28f98f57812df46cdf4bf1ef907d9a116ebb247631e

      SHA512

      885a6097daa81d0e3219d7bb472f401ff29962d6c27591ee1600665b90002d83d4cad8e378143be0dc3edc53184bef926bf71764fb52e9bc2b9d83186b19a849

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

      Filesize

      2B

      MD5

      f3b25701fe362ec84616a93a45ce9998

      SHA1

      d62636d8caec13f04e28442a0a6fa1afeb024bbb

      SHA256

      b3d510ef04275ca8e698e5b3cbb0ece3949ef9252f0cdc839e9ee347409a2209

      SHA512

      98c5f56f3de340690c139e58eb7dac111979f0d4dffe9c4b24ff849510f4b6ffa9fd608c0a3de9ac3c9fd2190f0efaf715309061490f9755a9bfdf1c54ca0d84

    • C:\Users\Admin\AppData\Roaming\Windows Update.exe

      Filesize

      744KB

      MD5

      2a5c407e1e79a2291a6920a023eac0c3

      SHA1

      7ac9bab12fd48ae21f59cdef5bb8e4fdb99f6f89

      SHA256

      4bd7075cfacf1940c00cb60328ee20190a618d38023e2cb35a302a3903435b5d

      SHA512

      5204916f50def7bcefebcb2dd33410e7af7ed952f64a3ad2da9cc495be85813d055692d3b469eb5094c0938ecc04d5f70bd9541e9ff824a76c3369661cbd6705

    • C:\Users\Admin\AppData\Roaming\Windows Update.exe

      Filesize

      744KB

      MD5

      2a5c407e1e79a2291a6920a023eac0c3

      SHA1

      7ac9bab12fd48ae21f59cdef5bb8e4fdb99f6f89

      SHA256

      4bd7075cfacf1940c00cb60328ee20190a618d38023e2cb35a302a3903435b5d

      SHA512

      5204916f50def7bcefebcb2dd33410e7af7ed952f64a3ad2da9cc495be85813d055692d3b469eb5094c0938ecc04d5f70bd9541e9ff824a76c3369661cbd6705

    • C:\Users\Admin\AppData\Roaming\Windows Update.exe

      Filesize

      744KB

      MD5

      2a5c407e1e79a2291a6920a023eac0c3

      SHA1

      7ac9bab12fd48ae21f59cdef5bb8e4fdb99f6f89

      SHA256

      4bd7075cfacf1940c00cb60328ee20190a618d38023e2cb35a302a3903435b5d

      SHA512

      5204916f50def7bcefebcb2dd33410e7af7ed952f64a3ad2da9cc495be85813d055692d3b469eb5094c0938ecc04d5f70bd9541e9ff824a76c3369661cbd6705

    • \Users\Admin\AppData\Local\Temp\4bd7075cfacf1940c00cb60328ee20190a618d38023e2cb35a302a3903435b5d.exe

      Filesize

      744KB

      MD5

      2a5c407e1e79a2291a6920a023eac0c3

      SHA1

      7ac9bab12fd48ae21f59cdef5bb8e4fdb99f6f89

      SHA256

      4bd7075cfacf1940c00cb60328ee20190a618d38023e2cb35a302a3903435b5d

      SHA512

      5204916f50def7bcefebcb2dd33410e7af7ed952f64a3ad2da9cc495be85813d055692d3b469eb5094c0938ecc04d5f70bd9541e9ff824a76c3369661cbd6705

    • \Users\Admin\AppData\Roaming\Windows Update.exe

      Filesize

      744KB

      MD5

      2a5c407e1e79a2291a6920a023eac0c3

      SHA1

      7ac9bab12fd48ae21f59cdef5bb8e4fdb99f6f89

      SHA256

      4bd7075cfacf1940c00cb60328ee20190a618d38023e2cb35a302a3903435b5d

      SHA512

      5204916f50def7bcefebcb2dd33410e7af7ed952f64a3ad2da9cc495be85813d055692d3b469eb5094c0938ecc04d5f70bd9541e9ff824a76c3369661cbd6705

    • \Users\Admin\AppData\Roaming\Windows Update.exe

      Filesize

      744KB

      MD5

      2a5c407e1e79a2291a6920a023eac0c3

      SHA1

      7ac9bab12fd48ae21f59cdef5bb8e4fdb99f6f89

      SHA256

      4bd7075cfacf1940c00cb60328ee20190a618d38023e2cb35a302a3903435b5d

      SHA512

      5204916f50def7bcefebcb2dd33410e7af7ed952f64a3ad2da9cc495be85813d055692d3b469eb5094c0938ecc04d5f70bd9541e9ff824a76c3369661cbd6705

    • memory/572-104-0x00000000744A0000-0x0000000074A4B000-memory.dmp

      Filesize

      5.7MB

    • memory/572-101-0x0000000000BC5000-0x0000000000BD6000-memory.dmp

      Filesize

      68KB

    • memory/572-95-0x00000000744A0000-0x0000000074A4B000-memory.dmp

      Filesize

      5.7MB

    • memory/572-113-0x0000000000BC5000-0x0000000000BD6000-memory.dmp

      Filesize

      68KB

    • memory/572-86-0x000000000047EA9E-mapping.dmp

    • memory/1072-66-0x0000000000400000-0x0000000000484000-memory.dmp

      Filesize

      528KB

    • memory/1072-62-0x0000000000400000-0x0000000000484000-memory.dmp

      Filesize

      528KB

    • memory/1072-74-0x0000000074A50000-0x0000000074FFB000-memory.dmp

      Filesize

      5.7MB

    • memory/1072-58-0x0000000000400000-0x0000000000484000-memory.dmp

      Filesize

      528KB

    • memory/1072-60-0x0000000000400000-0x0000000000484000-memory.dmp

      Filesize

      528KB

    • memory/1072-78-0x0000000074A50000-0x0000000074FFB000-memory.dmp

      Filesize

      5.7MB

    • memory/1072-68-0x0000000000400000-0x0000000000484000-memory.dmp

      Filesize

      528KB

    • memory/1072-57-0x0000000000400000-0x0000000000484000-memory.dmp

      Filesize

      528KB

    • memory/1072-61-0x0000000000400000-0x0000000000484000-memory.dmp

      Filesize

      528KB

    • memory/1072-63-0x000000000047EA9E-mapping.dmp

    • memory/1208-70-0x0000000074A50000-0x0000000074FFB000-memory.dmp

      Filesize

      5.7MB

    • memory/1208-55-0x0000000074A50000-0x0000000074FFB000-memory.dmp

      Filesize

      5.7MB

    • memory/1208-54-0x0000000075D01000-0x0000000075D03000-memory.dmp

      Filesize

      8KB

    • memory/1208-71-0x0000000000B06000-0x0000000000B17000-memory.dmp

      Filesize

      68KB

    • memory/1624-105-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1624-106-0x0000000000442628-mapping.dmp

    • memory/1624-109-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1624-110-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1624-112-0x0000000000400000-0x0000000000458000-memory.dmp

      Filesize

      352KB

    • memory/1884-100-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1884-102-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1884-96-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1884-103-0x0000000000400000-0x000000000041B000-memory.dmp

      Filesize

      108KB

    • memory/1884-97-0x0000000000411654-mapping.dmp

    • memory/1996-73-0x0000000000000000-mapping.dmp

    • memory/1996-89-0x0000000074A50000-0x0000000074FFB000-memory.dmp

      Filesize

      5.7MB