Analysis

  • max time kernel
    121s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20231025-en
  • resource tags

    arch:x64arch:x86image:win7-20231025-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2023 03:00

General

  • Target

    cd6655eae6994bf4dc8037faad921ef7ad7f3eb4cc7110f1e7e53916154dff95.exe

  • Size

    839KB

  • MD5

    b1d8e0f2bd4320a9a8d17c655f7e2958

  • SHA1

    79bff8ca37702256dede63b3e9531135c205bbe0

  • SHA256

    cd6655eae6994bf4dc8037faad921ef7ad7f3eb4cc7110f1e7e53916154dff95

  • SHA512

    c46357812c12c8632241dedcff870b0bb560ebb273e0b1f7c29616dc31d53fe9c44727f89e189a444da99bc01ba62ff7e31713b70bab4ee7ec55273e9bb42388

  • SSDEEP

    12288:RUwVLsFYMDZbTWFFK333SFuG6Ehe5xabyqG0T39LpTuWUsbq7O9ZOmwpEbsL3iCC:R34B5/33SFuG6Eqgby8N11

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs
  • Looks for VMWare Tools registry key 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • 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
  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cd6655eae6994bf4dc8037faad921ef7ad7f3eb4cc7110f1e7e53916154dff95.exe
    "C:\Users\Admin\AppData\Local\Temp\cd6655eae6994bf4dc8037faad921ef7ad7f3eb4cc7110f1e7e53916154dff95.exe"
    1⤵
    • Looks for VirtualBox Guest Additions in registry
    • Looks for VMWare Tools registry key
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2612
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\rLAbLfCavTuDwJ" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1B9C.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2524
    • C:\Users\Admin\AppData\Local\Temp\cd6655eae6994bf4dc8037faad921ef7ad7f3eb4cc7110f1e7e53916154dff95.exe
      "{path}"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:2584

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp1B9C.tmp

    Filesize

    1KB

    MD5

    97489769ba52bcf856e63dee859a6396

    SHA1

    1866f8ab73d3abfada39d913ed53a6feff69271c

    SHA256

    b326d8e3c26658ee87d095b10ca326c90656639bf8fb8e8eb6fbb1e76f8677b3

    SHA512

    8161d67fe4616f2ba263b8f84168563bc9473e5e9c58b97f9dcfc1bc6ae26ef88f13cd755f8249d66a8abb623f59af97b52b3d485756f4dcf4ed543f6fead284

  • memory/2584-22-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2584-18-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2584-13-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2584-16-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2584-14-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2584-27-0x0000000004B50000-0x0000000004B90000-memory.dmp

    Filesize

    256KB

  • memory/2584-26-0x0000000073F70000-0x000000007465E000-memory.dmp

    Filesize

    6.9MB

  • memory/2584-25-0x0000000004B50000-0x0000000004B90000-memory.dmp

    Filesize

    256KB

  • memory/2584-11-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2584-12-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2584-23-0x0000000073F70000-0x000000007465E000-memory.dmp

    Filesize

    6.9MB

  • memory/2584-20-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2612-7-0x0000000002190000-0x00000000021D2000-memory.dmp

    Filesize

    264KB

  • memory/2612-4-0x0000000073F70000-0x000000007465E000-memory.dmp

    Filesize

    6.9MB

  • memory/2612-0-0x0000000000920000-0x00000000009F8000-memory.dmp

    Filesize

    864KB

  • memory/2612-5-0x00000000043D0000-0x0000000004410000-memory.dmp

    Filesize

    256KB

  • memory/2612-3-0x00000000004A0000-0x00000000004AC000-memory.dmp

    Filesize

    48KB

  • memory/2612-24-0x0000000073F70000-0x000000007465E000-memory.dmp

    Filesize

    6.9MB

  • memory/2612-1-0x0000000073F70000-0x000000007465E000-memory.dmp

    Filesize

    6.9MB

  • memory/2612-2-0x00000000043D0000-0x0000000004410000-memory.dmp

    Filesize

    256KB

  • memory/2612-6-0x00000000075E0000-0x0000000007664000-memory.dmp

    Filesize

    528KB