Analysis

  • max time kernel
    30s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    08/03/2023, 01:42

General

  • Target

    62c22196418123be9af8ab9c5a0d6ceac9b966b8ac5c241fa2f59fe64f3dbf50.exe

  • Size

    2.5MB

  • MD5

    b689c5cb896835c4a6a3bbe33129dd37

  • SHA1

    bc28e1905621106085707866a88162c9a867a009

  • SHA256

    62c22196418123be9af8ab9c5a0d6ceac9b966b8ac5c241fa2f59fe64f3dbf50

  • SHA512

    95d1504adc7b88c287ee72ae975a95e7c64dc9f2eaa58b5706699a1b0131c2284ce820e79c97fa241536608f30813f21dad791df7df6b38064e3c4a5ee69073e

  • SSDEEP

    24576:xBrXtw2Irak7ZoNNosz4TztSXXo5pl9YZq2v3ret511WKe++7PXf:X9qNm4T86MejWjTv

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 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
  • 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
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\62c22196418123be9af8ab9c5a0d6ceac9b966b8ac5c241fa2f59fe64f3dbf50.exe
    "C:\Users\Admin\AppData\Local\Temp\62c22196418123be9af8ab9c5a0d6ceac9b966b8ac5c241fa2f59fe64f3dbf50.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1108
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
        PID:1988
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        2⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:924
        • C:\Users\Admin\AppData\Local\Temp\Tcnmikbbfcbl.exe
          "C:\Users\Admin\AppData\Local\Temp\Tcnmikbbfcbl.exe"
          3⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          PID:268
        • C:\Users\Admin\AppData\Local\Temp\Faedr.exe
          "C:\Users\Admin\AppData\Local\Temp\Faedr.exe"
          3⤵
          • Executes dropped EXE
          • Accesses Microsoft Outlook profiles
          • Suspicious use of AdjustPrivilegeToken
          • outlook_office_path
          • outlook_win_path
          PID:1412

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\Faedr.exe

            Filesize

            164KB

            MD5

            55a4b1839408ca24880d72641c323123

            SHA1

            02067283b2339edf44ca02794301b29eb529eb25

            SHA256

            33eed90ee9d7f5e5dde26e930f424fc0a6a78b9f99a67837ef0be5a0b3945106

            SHA512

            182213f5882727b77533e1d440be0f9eeede25f5810b207ab7d99aeeffea7ba930923979a128959e55c04fb0a8f753bd84e84e34a4a79b1ed56d306119b826cb

          • C:\Users\Admin\AppData\Local\Temp\Faedr.exe

            Filesize

            164KB

            MD5

            55a4b1839408ca24880d72641c323123

            SHA1

            02067283b2339edf44ca02794301b29eb529eb25

            SHA256

            33eed90ee9d7f5e5dde26e930f424fc0a6a78b9f99a67837ef0be5a0b3945106

            SHA512

            182213f5882727b77533e1d440be0f9eeede25f5810b207ab7d99aeeffea7ba930923979a128959e55c04fb0a8f753bd84e84e34a4a79b1ed56d306119b826cb

          • C:\Users\Admin\AppData\Local\Temp\Tcnmikbbfcbl.exe

            Filesize

            541KB

            MD5

            64cf6f9f2af4fdb442807392ad8a21c2

            SHA1

            2effb6251c48e02518b3f9a1b7aa78f99726dc6a

            SHA256

            4345d15dcca24277c7d1f60d1583ae1d58d029c9aeaecc76b13c5daf07ce48a3

            SHA512

            89d8b88c761de2192729f804465750d7c6f329fd5e063876af3ff381e8343dbb9588644e5050892717374bcc6eb770aed0a5a05b40ecb578bd9deb8000c13443

          • C:\Users\Admin\AppData\Local\Temp\Tcnmikbbfcbl.exe

            Filesize

            541KB

            MD5

            64cf6f9f2af4fdb442807392ad8a21c2

            SHA1

            2effb6251c48e02518b3f9a1b7aa78f99726dc6a

            SHA256

            4345d15dcca24277c7d1f60d1583ae1d58d029c9aeaecc76b13c5daf07ce48a3

            SHA512

            89d8b88c761de2192729f804465750d7c6f329fd5e063876af3ff381e8343dbb9588644e5050892717374bcc6eb770aed0a5a05b40ecb578bd9deb8000c13443

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

            Filesize

            164KB

            MD5

            55a4b1839408ca24880d72641c323123

            SHA1

            02067283b2339edf44ca02794301b29eb529eb25

            SHA256

            33eed90ee9d7f5e5dde26e930f424fc0a6a78b9f99a67837ef0be5a0b3945106

            SHA512

            182213f5882727b77533e1d440be0f9eeede25f5810b207ab7d99aeeffea7ba930923979a128959e55c04fb0a8f753bd84e84e34a4a79b1ed56d306119b826cb

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

            Filesize

            541KB

            MD5

            64cf6f9f2af4fdb442807392ad8a21c2

            SHA1

            2effb6251c48e02518b3f9a1b7aa78f99726dc6a

            SHA256

            4345d15dcca24277c7d1f60d1583ae1d58d029c9aeaecc76b13c5daf07ce48a3

            SHA512

            89d8b88c761de2192729f804465750d7c6f329fd5e063876af3ff381e8343dbb9588644e5050892717374bcc6eb770aed0a5a05b40ecb578bd9deb8000c13443

          • memory/268-92-0x00000000048F0000-0x00000000049B7000-memory.dmp

            Filesize

            796KB

          • memory/268-97-0x00000000048F0000-0x00000000049B7000-memory.dmp

            Filesize

            796KB

          • memory/268-141-0x00000000048F0000-0x00000000049B7000-memory.dmp

            Filesize

            796KB

          • memory/268-139-0x00000000048F0000-0x00000000049B7000-memory.dmp

            Filesize

            796KB

          • memory/268-137-0x00000000048F0000-0x00000000049B7000-memory.dmp

            Filesize

            796KB

          • memory/268-135-0x00000000048F0000-0x00000000049B7000-memory.dmp

            Filesize

            796KB

          • memory/268-133-0x00000000048F0000-0x00000000049B7000-memory.dmp

            Filesize

            796KB

          • memory/268-131-0x00000000048F0000-0x00000000049B7000-memory.dmp

            Filesize

            796KB

          • memory/268-129-0x00000000048F0000-0x00000000049B7000-memory.dmp

            Filesize

            796KB

          • memory/268-127-0x00000000048F0000-0x00000000049B7000-memory.dmp

            Filesize

            796KB

          • memory/268-125-0x00000000048F0000-0x00000000049B7000-memory.dmp

            Filesize

            796KB

          • memory/268-123-0x00000000048F0000-0x00000000049B7000-memory.dmp

            Filesize

            796KB

          • memory/268-83-0x0000000001220000-0x00000000012AE000-memory.dmp

            Filesize

            568KB

          • memory/268-121-0x00000000048F0000-0x00000000049B7000-memory.dmp

            Filesize

            796KB

          • memory/268-119-0x00000000048F0000-0x00000000049B7000-memory.dmp

            Filesize

            796KB

          • memory/268-117-0x00000000048F0000-0x00000000049B7000-memory.dmp

            Filesize

            796KB

          • memory/268-86-0x00000000048F0000-0x00000000049BE000-memory.dmp

            Filesize

            824KB

          • memory/268-87-0x00000000048F0000-0x00000000049B7000-memory.dmp

            Filesize

            796KB

          • memory/268-88-0x00000000048F0000-0x00000000049B7000-memory.dmp

            Filesize

            796KB

          • memory/268-90-0x00000000048F0000-0x00000000049B7000-memory.dmp

            Filesize

            796KB

          • memory/268-115-0x00000000048F0000-0x00000000049B7000-memory.dmp

            Filesize

            796KB

          • memory/268-94-0x00000000048F0000-0x00000000049B7000-memory.dmp

            Filesize

            796KB

          • memory/268-113-0x00000000048F0000-0x00000000049B7000-memory.dmp

            Filesize

            796KB

          • memory/268-111-0x00000000048F0000-0x00000000049B7000-memory.dmp

            Filesize

            796KB

          • memory/268-99-0x00000000048F0000-0x00000000049B7000-memory.dmp

            Filesize

            796KB

          • memory/268-101-0x00000000048F0000-0x00000000049B7000-memory.dmp

            Filesize

            796KB

          • memory/268-103-0x00000000048F0000-0x00000000049B7000-memory.dmp

            Filesize

            796KB

          • memory/268-105-0x00000000048F0000-0x00000000049B7000-memory.dmp

            Filesize

            796KB

          • memory/268-107-0x00000000048F0000-0x00000000049B7000-memory.dmp

            Filesize

            796KB

          • memory/268-109-0x00000000048F0000-0x00000000049B7000-memory.dmp

            Filesize

            796KB

          • memory/924-67-0x0000000000400000-0x00000000004A2000-memory.dmp

            Filesize

            648KB

          • memory/924-60-0x0000000000400000-0x00000000004A2000-memory.dmp

            Filesize

            648KB

          • memory/924-62-0x0000000000400000-0x00000000004A2000-memory.dmp

            Filesize

            648KB

          • memory/924-85-0x00000000051B5000-0x00000000051D3000-memory.dmp

            Filesize

            120KB

          • memory/924-65-0x0000000000400000-0x00000000004A2000-memory.dmp

            Filesize

            648KB

          • memory/924-61-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

            Filesize

            4KB

          • memory/924-68-0x00000000051B0000-0x00000000051F0000-memory.dmp

            Filesize

            256KB

          • memory/924-59-0x0000000000400000-0x00000000004A2000-memory.dmp

            Filesize

            648KB

          • memory/924-58-0x0000000000400000-0x00000000004A2000-memory.dmp

            Filesize

            648KB

          • memory/924-57-0x0000000000400000-0x00000000004A2000-memory.dmp

            Filesize

            648KB

          • memory/1108-56-0x00000000005D0000-0x00000000005D8000-memory.dmp

            Filesize

            32KB

          • memory/1108-55-0x00000000005B0000-0x00000000005C2000-memory.dmp

            Filesize

            72KB

          • memory/1108-63-0x0000000004C80000-0x0000000004CC0000-memory.dmp

            Filesize

            256KB

          • memory/1108-54-0x00000000000C0000-0x0000000000352000-memory.dmp

            Filesize

            2.6MB

          • memory/1412-96-0x0000000000B20000-0x0000000000B60000-memory.dmp

            Filesize

            256KB

          • memory/1412-84-0x0000000000B70000-0x0000000000BA0000-memory.dmp

            Filesize

            192KB