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Analysis

  • max time kernel
    121s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    21/05/2024, 01:10

General

  • Target

    0e8fcdc410b7e7cd6c985a9a6edda567e1734578fd9e27ed360515227880d266.xlsx

  • Size

    741KB

  • MD5

    0a6d11b6c53602ee2fad4043440d66df

  • SHA1

    4b519750d731eb9067e64f07f3de5df62ea2263f

  • SHA256

    0e8fcdc410b7e7cd6c985a9a6edda567e1734578fd9e27ed360515227880d266

  • SHA512

    48693fc8d8bcd37be69b424665e459542b39872da139acb2a5ecd2686e0a2acf636a1f089df146d67a072b2af9f20816efbef65e689003b5906b653660c4a4ca

  • SSDEEP

    12288:QfLq6svbQRuLxu1AboxtOnUwgOFoE0aWTjyLEUpcyXOxBPrwF7b5Ai7nETqBBzTU:Qfjs7xu1NvIJdi1aNAUpcygeb5ADqplA

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 7 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • 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 behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\0e8fcdc410b7e7cd6c985a9a6edda567e1734578fd9e27ed360515227880d266.xlsx
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:1288
  • 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:2592
    • C:\Users\Admin\AppData\Local\Temp\qhtuvfhji.exe
      C:\Users\Admin\AppData\Local\Temp\qhtuvfhji.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SendNotifyMessage
      • Suspicious use of WriteProcessMemory
      PID:2204
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
        C:\Users\Admin\AppData\Local\Temp\qhtuvfhji.exe
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1716

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

    Filesize

    68KB

    MD5

    29f65ba8e88c063813cc50a4ea544e93

    SHA1

    05a7040d5c127e68c25d81cc51271ffb8bef3568

    SHA256

    1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

    SHA512

    e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    344B

    MD5

    6521502b18c4ec0d22374ad0a5c69e8e

    SHA1

    28a371e5b84a0d7c263d083c64662314e10a3abd

    SHA256

    ae3d2fb6a1093ba6ce2a184c53dfa3a6b19120ec52ee30c3fdafdc0584f22d4c

    SHA512

    56b458daa78887374a2393139e3014507e08602d4d4615b85df4ba8a7878bf85704da47fe499b39b039faf4aac9448a1123715543914488e64f5989631fcce8e

  • C:\Users\Admin\AppData\Local\Temp\Cab1602.tmp

    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\Tar16D4.tmp

    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • \Users\Admin\AppData\Local\Temp\qhtuvfhji.exe

    Filesize

    1020KB

    MD5

    9bd9e74ec90979f70c3e6ceead15aa5a

    SHA1

    3e945f971d078852a63db6cbf2698e82700c2f35

    SHA256

    190469774e832bee578dd5ea4349878063b86eedca8b77f1efec51af20cd1ce7

    SHA512

    4362f80e3db045ed6898e225e740f72ec09b4dd8b4752d0323aaac3892d84e2c032eaaca7598f8d04651a44705249a05db9d52299d017a3b8232afc59eb5e928

  • memory/1288-1-0x0000000071D9D000-0x0000000071DA8000-memory.dmp

    Filesize

    44KB

  • memory/1288-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1288-114-0x0000000071D9D000-0x0000000071DA8000-memory.dmp

    Filesize

    44KB

  • memory/1288-117-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1288-118-0x0000000071D9D000-0x0000000071DA8000-memory.dmp

    Filesize

    44KB

  • memory/1716-111-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1716-113-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/1716-112-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB