Analysis

  • max time kernel
    118s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20231020-en
  • resource tags

    arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
  • submitted
    07-12-2023 01:02

General

  • Target

    ecb3b7212480d061a7ce6f127ee30b77d554cc1872864334068e369236a7ff09.exe

  • Size

    738KB

  • MD5

    251f0aba896a811b7f72838198d35f0a

  • SHA1

    f384dd793501a47a10812bafa3fe219ec93ca970

  • SHA256

    ecb3b7212480d061a7ce6f127ee30b77d554cc1872864334068e369236a7ff09

  • SHA512

    2cbee5f711501ef6266cbee3659c0ec25592d2377937ba2895832c0005fb45b9a5f7c983c8617cdc32f31338e8bee2c5b53b45a5e548ec9586ef9516b6d13a4d

  • SSDEEP

    12288:Uqc3+GCueH5qXK0Ulxwg3TUOD7kTT5QXkXyCz32wywko+mDlrrGb6CIkXU6G6:U/uG2qpUlJ3TLD7kZQXU2XXUqbNIGU

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ecb3b7212480d061a7ce6f127ee30b77d554cc1872864334068e369236a7ff09.exe
    "C:\Users\Admin\AppData\Local\Temp\ecb3b7212480d061a7ce6f127ee30b77d554cc1872864334068e369236a7ff09.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2176
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\bZwzaY.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2744
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\bZwzaY" /XML "C:\Users\Admin\AppData\Local\Temp\tmp9DC5.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2812
    • C:\Users\Admin\AppData\Local\Temp\ecb3b7212480d061a7ce6f127ee30b77d554cc1872864334068e369236a7ff09.exe
      "C:\Users\Admin\AppData\Local\Temp\ecb3b7212480d061a7ce6f127ee30b77d554cc1872864334068e369236a7ff09.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2820

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmp9DC5.tmp

    Filesize

    1KB

    MD5

    f6735cd00b1197ec92a8f756b0bb34ad

    SHA1

    1ac9c8123e223038beefe3a8d5f825e563c48220

    SHA256

    31413838e7f2a88a4567342144964d69aa63e9433f8442752b7d2c27e8cfdeb4

    SHA512

    3a0d587361babcaaec3de2b15343f0f558cef7256474b57339675a6296029c0ae2a49fb26b01177dabc7a791950a33b4f625510a0c46aa093e03555e44d20e5f

  • C:\Users\Admin\AppData\Roaming\Micosoft Excel 2023\Micosoft Excel 2023.exe

    Filesize

    738KB

    MD5

    251f0aba896a811b7f72838198d35f0a

    SHA1

    f384dd793501a47a10812bafa3fe219ec93ca970

    SHA256

    ecb3b7212480d061a7ce6f127ee30b77d554cc1872864334068e369236a7ff09

    SHA512

    2cbee5f711501ef6266cbee3659c0ec25592d2377937ba2895832c0005fb45b9a5f7c983c8617cdc32f31338e8bee2c5b53b45a5e548ec9586ef9516b6d13a4d

  • memory/2176-3-0x0000000000480000-0x000000000049A000-memory.dmp

    Filesize

    104KB

  • memory/2176-26-0x0000000074230000-0x000000007491E000-memory.dmp

    Filesize

    6.9MB

  • memory/2176-4-0x00000000004A0000-0x00000000004A8000-memory.dmp

    Filesize

    32KB

  • memory/2176-5-0x00000000004B0000-0x00000000004BA000-memory.dmp

    Filesize

    40KB

  • memory/2176-6-0x0000000005320000-0x000000000539C000-memory.dmp

    Filesize

    496KB

  • memory/2176-2-0x0000000004C20000-0x0000000004C60000-memory.dmp

    Filesize

    256KB

  • memory/2176-1-0x0000000074230000-0x000000007491E000-memory.dmp

    Filesize

    6.9MB

  • memory/2176-0-0x0000000000F50000-0x000000000100E000-memory.dmp

    Filesize

    760KB

  • memory/2744-36-0x000000006F280000-0x000000006F82B000-memory.dmp

    Filesize

    5.7MB

  • memory/2744-33-0x0000000002700000-0x0000000002740000-memory.dmp

    Filesize

    256KB

  • memory/2744-32-0x0000000002700000-0x0000000002740000-memory.dmp

    Filesize

    256KB

  • memory/2744-31-0x000000006F280000-0x000000006F82B000-memory.dmp

    Filesize

    5.7MB

  • memory/2744-30-0x000000006F280000-0x000000006F82B000-memory.dmp

    Filesize

    5.7MB

  • memory/2820-18-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2820-24-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2820-25-0x0000000074230000-0x000000007491E000-memory.dmp

    Filesize

    6.9MB

  • memory/2820-27-0x0000000004C00000-0x0000000004C40000-memory.dmp

    Filesize

    256KB

  • memory/2820-22-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2820-20-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2820-17-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2820-16-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2820-14-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2820-12-0x0000000000400000-0x0000000000442000-memory.dmp

    Filesize

    264KB

  • memory/2820-37-0x0000000074230000-0x000000007491E000-memory.dmp

    Filesize

    6.9MB

  • memory/2820-38-0x0000000004C00000-0x0000000004C40000-memory.dmp

    Filesize

    256KB