Analysis

  • max time kernel
    178s
  • max time network
    191s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    08-12-2022 15:50

General

  • Target

    payment copy.pdf.exe

  • Size

    874KB

  • MD5

    19b12dc02fe474dead3c44c468554d6f

  • SHA1

    9407e38cea8b04705f433a7cb91ec25fda611263

  • SHA256

    3ccaf74f465a79ec320fdb7e44ae09551f4348efd3bf8bf7b3638cc0c1cd8492

  • SHA512

    2ede1e930e060451ebba68396cca0eb4a7dd3c65a2b0039f87dd687a5f8876db58d14add581303de9ab890865fba312b0db1f3c2cc324bf9584a10993cec4ad3

  • SSDEEP

    12288:knoQgKZ/nXt7virmWhlGLaQYImptNmkEcPbiZx8JCozVpSs8X45jOCXJWfBhib6S:kGNwK+EJCozno4RQZwbUIxxF/Xzr

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 1 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.

  • 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 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\payment copy.pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\payment copy.pdf.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4748
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\FpsFCIpjUIzS.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4716
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FpsFCIpjUIzS" /XML "C:\Users\Admin\AppData\Local\Temp\tmpBC3B.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4184
    • C:\Users\Admin\AppData\Local\Temp\payment copy.pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\payment copy.pdf.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:2388

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\payment copy.pdf.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Temp\tmpBC3B.tmp

    Filesize

    1KB

    MD5

    6e2ba317cd35ea9c12b76809dbf6fde9

    SHA1

    530670034e62286102d1dab4a471938df9666bca

    SHA256

    b91fff5c1a97170af5cf2c197c70e2d536f54866ec29fc020f8fd0ab72ce1aaa

    SHA512

    cac14859fd3301095089c2cac5a4db589a42cb9e521b8de0819209a8ff116add37b3a865f5c784ca6495f15208fa3c1802feb2b713bcabb8ce457b993d2972ae

  • memory/2388-159-0x0000000007270000-0x00000000072C0000-memory.dmp

    Filesize

    320KB

  • memory/2388-143-0x0000000000400000-0x0000000000438000-memory.dmp

    Filesize

    224KB

  • memory/2388-141-0x0000000000000000-mapping.dmp

  • memory/4184-138-0x0000000000000000-mapping.dmp

  • memory/4716-146-0x0000000005930000-0x0000000005996000-memory.dmp

    Filesize

    408KB

  • memory/4716-154-0x0000000007410000-0x000000000741A000-memory.dmp

    Filesize

    40KB

  • memory/4716-137-0x0000000000000000-mapping.dmp

  • memory/4716-142-0x0000000005250000-0x0000000005878000-memory.dmp

    Filesize

    6.2MB

  • memory/4716-158-0x00000000076D0000-0x00000000076D8000-memory.dmp

    Filesize

    32KB

  • memory/4716-157-0x00000000076F0000-0x000000000770A000-memory.dmp

    Filesize

    104KB

  • memory/4716-156-0x00000000075E0000-0x00000000075EE000-memory.dmp

    Filesize

    56KB

  • memory/4716-145-0x00000000051D0000-0x00000000051F2000-memory.dmp

    Filesize

    136KB

  • memory/4716-155-0x0000000007620000-0x00000000076B6000-memory.dmp

    Filesize

    600KB

  • memory/4716-147-0x0000000005A50000-0x0000000005AB6000-memory.dmp

    Filesize

    408KB

  • memory/4716-148-0x00000000060A0000-0x00000000060BE000-memory.dmp

    Filesize

    120KB

  • memory/4716-149-0x0000000006660000-0x0000000006692000-memory.dmp

    Filesize

    200KB

  • memory/4716-150-0x0000000070440000-0x000000007048C000-memory.dmp

    Filesize

    304KB

  • memory/4716-151-0x0000000006630000-0x000000000664E000-memory.dmp

    Filesize

    120KB

  • memory/4716-152-0x00000000079E0000-0x000000000805A000-memory.dmp

    Filesize

    6.5MB

  • memory/4716-153-0x00000000073A0000-0x00000000073BA000-memory.dmp

    Filesize

    104KB

  • memory/4716-139-0x00000000027A0000-0x00000000027D6000-memory.dmp

    Filesize

    216KB

  • memory/4748-132-0x0000000000540000-0x0000000000622000-memory.dmp

    Filesize

    904KB

  • memory/4748-134-0x0000000004FC0000-0x0000000005052000-memory.dmp

    Filesize

    584KB

  • memory/4748-135-0x0000000004FB0000-0x0000000004FBA000-memory.dmp

    Filesize

    40KB

  • memory/4748-136-0x00000000052D0000-0x000000000536C000-memory.dmp

    Filesize

    624KB

  • memory/4748-133-0x0000000005640000-0x0000000005BE4000-memory.dmp

    Filesize

    5.6MB