Analysis

  • max time kernel
    120s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    21-07-2023 04:18

General

  • Target

    KSY Product Catalog.rtf

  • Size

    39KB

  • MD5

    cc47323a812b42250d34573c4b9f12e0

  • SHA1

    2af65a3a53f0a39fe33c17aa43698c2d1a0bee61

  • SHA256

    1646017b8052c3ea33881beeb6c7e7755567eaa49c4eb2df8e7d89496af01f7d

  • SHA512

    ddb75c8b423ea343d6694ccee5e517a9936f3a93cff3c504e482f376c5925b1af1994d43feeb65bbfab7c78a2e9420c8f2d301fd6f2fe777a14f65b49a5ae4e4

  • SSDEEP

    768:oFx0XaIsnPRIa4fwJMrhv97Lxub+x034EWa+fBV8kH:of0Xvx3EM19HxubBfWRBykH

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    cp5ua.hyperhost.ua
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    7213575aceACE@#$

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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • 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.

  • 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
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 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\KSY Product Catalog.rtf"
    1⤵
    • Drops file in Windows directory
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2556
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:2728
    • 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:2340
      • C:\Users\Admin\AppData\Roaming\yugokanf696178.exe
        "C:\Users\Admin\AppData\Roaming\yugokanf696178.exe"
        2⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2388
        • C:\Users\Admin\AppData\Roaming\yugokanf696178.exe
          "C:\Users\Admin\AppData\Roaming\yugokanf696178.exe"
          3⤵
          • Executes dropped EXE
          • Accesses Microsoft Outlook profiles
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • outlook_office_path
          • outlook_win_path
          PID:1100

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\Cab25DA.tmp

      Filesize

      62KB

      MD5

      3ac860860707baaf32469fa7cc7c0192

      SHA1

      c33c2acdaba0e6fa41fd2f00f186804722477639

      SHA256

      d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904

      SHA512

      d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c

    • C:\Users\Admin\AppData\Local\Temp\Tar2679.tmp

      Filesize

      164KB

      MD5

      4ff65ad929cd9a367680e0e5b1c08166

      SHA1

      c0af0d4396bd1f15c45f39d3b849ba444233b3a2

      SHA256

      c8733c93cc5aaf5ca206d06af22ee8dbdec764fb5085019a6a9181feb9dfdee6

      SHA512

      f530dc0d024a5a3b8903ffaaa41b608a5ccdd6da4ba1949f2c2e55a9fca475fec5c8d2119b5763cabe7ef1c3788fb9dcac621869db51d65b1d83cfe404fb4c27

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

      Filesize

      20KB

      MD5

      26a2c690afb1713284cde5efb7981b0b

      SHA1

      35d173b008f9029b7c416a7cc607381067c3589f

      SHA256

      7536a178157f38becc7c8703eade129da1b9dd6d02c6bd47408403686d0503ca

      SHA512

      20fa70502114635a8b5228a6936bb66584bf56be316acaf57ee7669756a579ba56a227d3014cb1f52425de6d97d3f79e726060f65ee9f8d04009c41dbd6d035a

    • C:\Users\Admin\AppData\Roaming\yugokanf696178.exe

      Filesize

      633KB

      MD5

      764cb439deb85a06073c46f475956fc4

      SHA1

      cfd265f85f54b84b0ce27d9d3a68fef3d6974b49

      SHA256

      9db20870570e93875292e6a6a5f7683982cbe675135032c7dafc2b9704f3cb06

      SHA512

      109976d83b59dbf1045cf6ce0d4c813424e97318b66a56495858f2814d1f61a18cce4a996fae0d7b2f49af6b6e9e0dc12b139724dbaad07ac9904b6d4910cf02

    • C:\Users\Admin\AppData\Roaming\yugokanf696178.exe

      Filesize

      633KB

      MD5

      764cb439deb85a06073c46f475956fc4

      SHA1

      cfd265f85f54b84b0ce27d9d3a68fef3d6974b49

      SHA256

      9db20870570e93875292e6a6a5f7683982cbe675135032c7dafc2b9704f3cb06

      SHA512

      109976d83b59dbf1045cf6ce0d4c813424e97318b66a56495858f2814d1f61a18cce4a996fae0d7b2f49af6b6e9e0dc12b139724dbaad07ac9904b6d4910cf02

    • C:\Users\Admin\AppData\Roaming\yugokanf696178.exe

      Filesize

      633KB

      MD5

      764cb439deb85a06073c46f475956fc4

      SHA1

      cfd265f85f54b84b0ce27d9d3a68fef3d6974b49

      SHA256

      9db20870570e93875292e6a6a5f7683982cbe675135032c7dafc2b9704f3cb06

      SHA512

      109976d83b59dbf1045cf6ce0d4c813424e97318b66a56495858f2814d1f61a18cce4a996fae0d7b2f49af6b6e9e0dc12b139724dbaad07ac9904b6d4910cf02

    • C:\Users\Admin\AppData\Roaming\yugokanf696178.exe

      Filesize

      633KB

      MD5

      764cb439deb85a06073c46f475956fc4

      SHA1

      cfd265f85f54b84b0ce27d9d3a68fef3d6974b49

      SHA256

      9db20870570e93875292e6a6a5f7683982cbe675135032c7dafc2b9704f3cb06

      SHA512

      109976d83b59dbf1045cf6ce0d4c813424e97318b66a56495858f2814d1f61a18cce4a996fae0d7b2f49af6b6e9e0dc12b139724dbaad07ac9904b6d4910cf02

    • \Users\Admin\AppData\Roaming\yugokanf696178.exe

      Filesize

      633KB

      MD5

      764cb439deb85a06073c46f475956fc4

      SHA1

      cfd265f85f54b84b0ce27d9d3a68fef3d6974b49

      SHA256

      9db20870570e93875292e6a6a5f7683982cbe675135032c7dafc2b9704f3cb06

      SHA512

      109976d83b59dbf1045cf6ce0d4c813424e97318b66a56495858f2814d1f61a18cce4a996fae0d7b2f49af6b6e9e0dc12b139724dbaad07ac9904b6d4910cf02

    • memory/1100-98-0x0000000000620000-0x0000000000660000-memory.dmp

      Filesize

      256KB

    • memory/1100-139-0x000000006AAD0000-0x000000006B1BE000-memory.dmp

      Filesize

      6.9MB

    • memory/1100-86-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/1100-97-0x000000006AAD0000-0x000000006B1BE000-memory.dmp

      Filesize

      6.9MB

    • memory/1100-95-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/1100-93-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/1100-140-0x0000000000620000-0x0000000000660000-memory.dmp

      Filesize

      256KB

    • memory/1100-90-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/1100-88-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/1100-84-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/1100-85-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/1100-87-0x0000000000400000-0x0000000000430000-memory.dmp

      Filesize

      192KB

    • memory/2388-71-0x0000000004CF0000-0x0000000004D30000-memory.dmp

      Filesize

      256KB

    • memory/2388-96-0x000000006AAD0000-0x000000006B1BE000-memory.dmp

      Filesize

      6.9MB

    • memory/2388-82-0x00000000004D0000-0x00000000004DA000-memory.dmp

      Filesize

      40KB

    • memory/2388-80-0x0000000004CF0000-0x0000000004D30000-memory.dmp

      Filesize

      256KB

    • memory/2388-79-0x000000006AAD0000-0x000000006B1BE000-memory.dmp

      Filesize

      6.9MB

    • memory/2388-69-0x0000000001270000-0x0000000001314000-memory.dmp

      Filesize

      656KB

    • memory/2388-70-0x000000006AAD0000-0x000000006B1BE000-memory.dmp

      Filesize

      6.9MB

    • memory/2388-83-0x0000000005730000-0x000000000579A000-memory.dmp

      Filesize

      424KB

    • memory/2388-76-0x00000000004C0000-0x00000000004D0000-memory.dmp

      Filesize

      64KB

    • memory/2556-54-0x000000002F330000-0x000000002F48D000-memory.dmp

      Filesize

      1.4MB

    • memory/2556-77-0x000000002F330000-0x000000002F48D000-memory.dmp

      Filesize

      1.4MB

    • memory/2556-78-0x00000000710BD000-0x00000000710C8000-memory.dmp

      Filesize

      44KB

    • memory/2556-56-0x00000000710BD000-0x00000000710C8000-memory.dmp

      Filesize

      44KB

    • memory/2556-55-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2556-158-0x000000005FFF0000-0x0000000060000000-memory.dmp

      Filesize

      64KB

    • memory/2556-159-0x00000000710BD000-0x00000000710C8000-memory.dmp

      Filesize

      44KB