Analysis

  • max time kernel
    120s
  • max time network
    145s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    23/02/2024, 11:30

General

  • Target

    SRF Industries (Thailand) Ltd.pdf.exe

  • Size

    40KB

  • MD5

    26c95e5acba77d7fd14d109c94f75cca

  • SHA1

    56359d96cd63d66b51eb49acd46d8df25f170c30

  • SHA256

    32272f676a500007b4321f7c076ec3169305615e230dad3d89c63e0cfd24c1c6

  • SHA512

    6b2bd0a6240a13b641d005dc34cd364fd5eb2bb861d49d33bf826766ea0daf4a264f1182905363720b6a8bfad03d97386e965863578e57cf2cf5403d1309363a

  • SSDEEP

    768:1pc7ngE+7L+Phy83dWrz7lwHZjl7GdoUNIBBv5r:1Aj+7100rz7lwHj7QSBvJ

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Contacts a large (4576) amount of remote hosts 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Creates a large amount of network flows 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SRF Industries (Thailand) Ltd.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\SRF Industries (Thailand) Ltd.pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2296
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AddInProcess32.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2228

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          344B

          MD5

          e0c8f7c7cc7c310ae9c95b46d610d326

          SHA1

          662b8fd726229879b811063971b69be53b1f4e5c

          SHA256

          87db8f5b7e2222dd891c31e96c7ccd129fbe61d66a7d54799c3dd38a095856d1

          SHA512

          8931629e46a03f9a34b26d56141a1fe5b7e81e8a9aeade0154bbe05bc77ce3fb27b5386d98fd1dd625d0e99dad212fccbab1f2efe392aa3b4665d38b46898ac6

        • C:\Users\Admin\AppData\Local\Temp\Cab4FB8.tmp

          Filesize

          65KB

          MD5

          ac05d27423a85adc1622c714f2cb6184

          SHA1

          b0fe2b1abddb97837ea0195be70ab2ff14d43198

          SHA256

          c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

          SHA512

          6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

        • C:\Users\Admin\AppData\Local\Temp\Tar5102.tmp

          Filesize

          171KB

          MD5

          9c0c641c06238516f27941aa1166d427

          SHA1

          64cd549fb8cf014fcd9312aa7a5b023847b6c977

          SHA256

          4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

          SHA512

          936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

        • memory/2228-242-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/2228-251-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/2228-256-0x0000000004B60000-0x0000000004BA0000-memory.dmp

          Filesize

          256KB

        • memory/2228-255-0x0000000073CB0000-0x000000007439E000-memory.dmp

          Filesize

          6.9MB

        • memory/2228-254-0x0000000004B60000-0x0000000004BA0000-memory.dmp

          Filesize

          256KB

        • memory/2228-252-0x0000000073CB0000-0x000000007439E000-memory.dmp

          Filesize

          6.9MB

        • memory/2228-240-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/2228-249-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/2228-244-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/2228-245-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/2228-246-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

          Filesize

          4KB

        • memory/2228-247-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/2296-0-0x0000000000A20000-0x0000000000A2E000-memory.dmp

          Filesize

          56KB

        • memory/2296-2-0x000000001AD70000-0x000000001ADF0000-memory.dmp

          Filesize

          512KB

        • memory/2296-239-0x000000001C200000-0x000000001C296000-memory.dmp

          Filesize

          600KB

        • memory/2296-253-0x000007FEF5340000-0x000007FEF5D2C000-memory.dmp

          Filesize

          9.9MB

        • memory/2296-238-0x000000001AD70000-0x000000001ADF0000-memory.dmp

          Filesize

          512KB

        • memory/2296-237-0x000007FEF5340000-0x000007FEF5D2C000-memory.dmp

          Filesize

          9.9MB

        • memory/2296-1-0x000007FEF5340000-0x000007FEF5D2C000-memory.dmp

          Filesize

          9.9MB