Analysis

  • max time kernel
    270s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20231020-en
  • resource tags

    arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
  • submitted
    08-12-2023 12:39

General

  • Target

    Αντίγραφο πληρωμής _ MEDICAL PQ S.A..rtf

  • Size

    146KB

  • MD5

    08af4d55a8cf8e665638fbf68a0605fc

  • SHA1

    b29890c616bf85ece88051d4fc9972a3091dfb74

  • SHA256

    8d29e2a6c7bd4e925af3c4e744bdc432889948197bf8689920876ecb57b62c52

  • SHA512

    0fb8b4b84a735c6b58a00a8f8d7b8c25315f7c064f6d1fc7b5188e09161139ea55ded481c44c16531b6bdce410df4bf4844f69ca4fba065dd94b520a0e6c2c05

  • SSDEEP

    768:zwAbZSibMX9gRWjtwAbZSibMX9gRWjXp8+hxmXiQE+REJxT:zwAlRkwAlRii+hwXi9+REXT

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Blocklisted process makes network request 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 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.

  • Looks up external IP address via web service 2 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Office loads VBA resources, possible macro or embedded object present
  • Launches Equation Editor 1 TTPs 1 IoCs

    Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.

  • Modifies Internet Explorer settings 1 TTPs 31 IoCs
  • Modifies registry class 64 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\Αντίγραφο πληρωμής _ MEDICAL PQ S.A..rtf"
    1⤵
    • Drops file in Windows directory
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2200
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:1028
    • C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE
      "C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding
      1⤵
      • Blocklisted process makes network request
      • Loads dropped DLL
      • Launches Equation Editor
      • Suspicious use of WriteProcessMemory
      PID:2504
      • C:\Users\Admin\AppData\Roaming\plugman44444.exe
        "C:\Users\Admin\AppData\Roaming\plugman44444.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2708
        • C:\Users\Admin\AppData\Roaming\plugman44444.exe
          "C:\Users\Admin\AppData\Roaming\plugman44444.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:1476

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Roaming\Microsoft\Templates\Normal.dotm

      Filesize

      20KB

      MD5

      80659af8391ec36d7b9fe75ea520555e

      SHA1

      26ad99aee099087046b82b11ee376f50d7d72ce1

      SHA256

      b041da66c4d40a501a1135a3210cc4e44646f12e9b7eace95f22bdbf0edf68db

      SHA512

      a4ed1a2da1c0907b9cc369d9fe59cde10a26b85f4206418b79611f286c89e388313eaf3b3f6363124b6e758deb7f40a50c59f8f18f70a789a7b4c8252df96bb3

    • C:\Users\Admin\AppData\Roaming\plugman44444.exe

      Filesize

      737KB

      MD5

      a0a98d41a45aaa6af1ad3d084218e1b7

      SHA1

      aaf63c99c9313bd7ee46b67f5bea4f35e967e1af

      SHA256

      e3c48ba70cb42a88e5ebe7e22a5c28ddf8993f9c5106d0ab7e38450229f374c6

      SHA512

      96542a1828b66845095f98fb62fb99975a507a89bcc487139045800c5bc1a05bedc337e3699a06887969319b6f8fb51e568d13e42c12815d6d0092b71367e495

    • C:\Users\Admin\AppData\Roaming\plugman44444.exe

      Filesize

      737KB

      MD5

      a0a98d41a45aaa6af1ad3d084218e1b7

      SHA1

      aaf63c99c9313bd7ee46b67f5bea4f35e967e1af

      SHA256

      e3c48ba70cb42a88e5ebe7e22a5c28ddf8993f9c5106d0ab7e38450229f374c6

      SHA512

      96542a1828b66845095f98fb62fb99975a507a89bcc487139045800c5bc1a05bedc337e3699a06887969319b6f8fb51e568d13e42c12815d6d0092b71367e495

    • C:\Users\Admin\AppData\Roaming\plugman44444.exe

      Filesize

      737KB

      MD5

      a0a98d41a45aaa6af1ad3d084218e1b7

      SHA1

      aaf63c99c9313bd7ee46b67f5bea4f35e967e1af

      SHA256

      e3c48ba70cb42a88e5ebe7e22a5c28ddf8993f9c5106d0ab7e38450229f374c6

      SHA512

      96542a1828b66845095f98fb62fb99975a507a89bcc487139045800c5bc1a05bedc337e3699a06887969319b6f8fb51e568d13e42c12815d6d0092b71367e495

    • C:\Users\Admin\AppData\Roaming\plugman44444.exe

      Filesize

      737KB

      MD5

      a0a98d41a45aaa6af1ad3d084218e1b7

      SHA1

      aaf63c99c9313bd7ee46b67f5bea4f35e967e1af

      SHA256

      e3c48ba70cb42a88e5ebe7e22a5c28ddf8993f9c5106d0ab7e38450229f374c6

      SHA512

      96542a1828b66845095f98fb62fb99975a507a89bcc487139045800c5bc1a05bedc337e3699a06887969319b6f8fb51e568d13e42c12815d6d0092b71367e495

    • \Users\Admin\AppData\Roaming\plugman44444.exe

      Filesize

      737KB

      MD5

      a0a98d41a45aaa6af1ad3d084218e1b7

      SHA1

      aaf63c99c9313bd7ee46b67f5bea4f35e967e1af

      SHA256

      e3c48ba70cb42a88e5ebe7e22a5c28ddf8993f9c5106d0ab7e38450229f374c6

      SHA512

      96542a1828b66845095f98fb62fb99975a507a89bcc487139045800c5bc1a05bedc337e3699a06887969319b6f8fb51e568d13e42c12815d6d0092b71367e495

    • memory/1476-48-0x0000000004A80000-0x0000000004AC0000-memory.dmp

      Filesize

      256KB

    • memory/1476-36-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/1476-43-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/1476-41-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/1476-38-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/1476-34-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/1476-45-0x000000006AE80000-0x000000006B56E000-memory.dmp

      Filesize

      6.9MB

    • memory/1476-47-0x000000006AE80000-0x000000006B56E000-memory.dmp

      Filesize

      6.9MB

    • memory/1476-46-0x0000000004A80000-0x0000000004AC0000-memory.dmp

      Filesize

      256KB

    • memory/1476-28-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/1476-30-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/1476-32-0x0000000000400000-0x0000000000442000-memory.dmp

      Filesize

      264KB

    • memory/2200-23-0x0000000070D0D000-0x0000000070D18000-memory.dmp

      Filesize

      44KB

    • memory/2200-67-0x0000000070D0D000-0x0000000070D18000-memory.dmp

      Filesize

      44KB

    • memory/2200-2-0x0000000070D0D000-0x0000000070D18000-memory.dmp

      Filesize

      44KB

    • memory/2200-1-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2200-66-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2200-0-0x000000002F641000-0x000000002F642000-memory.dmp

      Filesize

      4KB

    • memory/2708-16-0x000000006AE80000-0x000000006B56E000-memory.dmp

      Filesize

      6.9MB

    • memory/2708-44-0x000000006AE80000-0x000000006B56E000-memory.dmp

      Filesize

      6.9MB

    • memory/2708-27-0x0000000004F40000-0x0000000004FBA000-memory.dmp

      Filesize

      488KB

    • memory/2708-26-0x0000000000610000-0x000000000061A000-memory.dmp

      Filesize

      40KB

    • memory/2708-25-0x0000000000600000-0x0000000000608000-memory.dmp

      Filesize

      32KB

    • memory/2708-22-0x00000000005E0000-0x00000000005FA000-memory.dmp

      Filesize

      104KB

    • memory/2708-17-0x0000000004D60000-0x0000000004DA0000-memory.dmp

      Filesize

      256KB

    • memory/2708-14-0x0000000000A30000-0x0000000000AEE000-memory.dmp

      Filesize

      760KB