Analysis

  • max time kernel
    125s
  • max time network
    52s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-12-2023 10:14

General

  • Target

    PI No. 92826785.exe

  • Size

    623KB

  • MD5

    92b364ff04da94c50941ac26728b398e

  • SHA1

    0ef8a6e061b52e34a31b691cd03153ce7b22c70a

  • SHA256

    7cba6ce993da55a8706e4c726e120ce59a40622f20ed4f0beb971c1fb03b9519

  • SHA512

    75d82e51d905febbb0fd6f3f0450c325faad7307bf84a5e508fca0aa3a75645873661f84a1bace1faa3edc6d0c0d8d3606f00228618f24510611e631fe03d37c

  • SSDEEP

    12288:Xl5nF8PVdqrlbLP8DL98J/1aswLR7HgaC/Me5Qes5ib46iJgw:Xlaqhb7Gp8DatpC/Me5GM/iJZ

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).

  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 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\PI No. 92826785.exe
    "C:\Users\Admin\AppData\Local\Temp\PI No. 92826785.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2396
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\pHkBnvqIJtDl.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4536
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\pHkBnvqIJtDl" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7F52.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:732
    • C:\Users\Admin\AppData\Local\Temp\PI No. 92826785.exe
      "C:\Users\Admin\AppData\Local\Temp\PI No. 92826785.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:864

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PI No. 92826785.exe.log

    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_s0nybjja.hhp.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Local\Temp\tmp7F52.tmp

    Filesize

    1KB

    MD5

    b018777d5e05d14f213647d72eb507c7

    SHA1

    ea576629cacfdbd0393223b01e7df35ca0d2ad5d

    SHA256

    eb3016e33c1a15599032e1688d31d04f402495b0bf91ff02e6ca6ad327906ed5

    SHA512

    78508f0c50b8a319b9e82c190740d9455f38178ea6e4042bfb4a22079d918aadd9af37bb57e83097388b5d23e0b3c35101048fa0cb0ad746498cf16c59d6b382

  • memory/864-72-0x0000000005390000-0x00000000053A0000-memory.dmp

    Filesize

    64KB

  • memory/864-27-0x00000000052A0000-0x0000000005306000-memory.dmp

    Filesize

    408KB

  • memory/864-26-0x0000000075110000-0x00000000758C0000-memory.dmp

    Filesize

    7.7MB

  • memory/864-22-0x0000000000400000-0x0000000000430000-memory.dmp

    Filesize

    192KB

  • memory/864-69-0x0000000006AC0000-0x0000000006B10000-memory.dmp

    Filesize

    320KB

  • memory/864-70-0x0000000006CE0000-0x0000000006EA2000-memory.dmp

    Filesize

    1.8MB

  • memory/864-71-0x0000000075110000-0x00000000758C0000-memory.dmp

    Filesize

    7.7MB

  • memory/2396-5-0x0000000004E90000-0x0000000004E9A000-memory.dmp

    Filesize

    40KB

  • memory/2396-10-0x0000000006180000-0x000000000621C000-memory.dmp

    Filesize

    624KB

  • memory/2396-9-0x0000000006310000-0x000000000637A000-memory.dmp

    Filesize

    424KB

  • memory/2396-8-0x00000000052B0000-0x00000000052BA000-memory.dmp

    Filesize

    40KB

  • memory/2396-19-0x0000000075110000-0x00000000758C0000-memory.dmp

    Filesize

    7.7MB

  • memory/2396-7-0x00000000052A0000-0x00000000052A8000-memory.dmp

    Filesize

    32KB

  • memory/2396-6-0x0000000005160000-0x0000000005178000-memory.dmp

    Filesize

    96KB

  • memory/2396-0-0x0000000000410000-0x00000000004B0000-memory.dmp

    Filesize

    640KB

  • memory/2396-4-0x0000000005180000-0x0000000005190000-memory.dmp

    Filesize

    64KB

  • memory/2396-25-0x0000000075110000-0x00000000758C0000-memory.dmp

    Filesize

    7.7MB

  • memory/2396-3-0x0000000004F20000-0x0000000004FB2000-memory.dmp

    Filesize

    584KB

  • memory/2396-2-0x0000000005430000-0x00000000059D4000-memory.dmp

    Filesize

    5.6MB

  • memory/2396-1-0x0000000075110000-0x00000000758C0000-memory.dmp

    Filesize

    7.7MB

  • memory/4536-29-0x0000000005440000-0x00000000054A6000-memory.dmp

    Filesize

    408KB

  • memory/4536-57-0x0000000007600000-0x0000000007C7A000-memory.dmp

    Filesize

    6.5MB

  • memory/4536-28-0x0000000004BD0000-0x0000000004BF2000-memory.dmp

    Filesize

    136KB

  • memory/4536-39-0x00000000057D0000-0x0000000005B24000-memory.dmp

    Filesize

    3.3MB

  • memory/4536-40-0x0000000005C80000-0x0000000005C9E000-memory.dmp

    Filesize

    120KB

  • memory/4536-41-0x0000000005D40000-0x0000000005D8C000-memory.dmp

    Filesize

    304KB

  • memory/4536-42-0x000000007F310000-0x000000007F320000-memory.dmp

    Filesize

    64KB

  • memory/4536-54-0x0000000006230000-0x000000000624E000-memory.dmp

    Filesize

    120KB

  • memory/4536-44-0x0000000070E10000-0x0000000070E5C000-memory.dmp

    Filesize

    304KB

  • memory/4536-43-0x0000000006260000-0x0000000006292000-memory.dmp

    Filesize

    200KB

  • memory/4536-56-0x0000000006E60000-0x0000000006F03000-memory.dmp

    Filesize

    652KB

  • memory/4536-55-0x00000000046E0000-0x00000000046F0000-memory.dmp

    Filesize

    64KB

  • memory/4536-58-0x0000000006FC0000-0x0000000006FDA000-memory.dmp

    Filesize

    104KB

  • memory/4536-21-0x00000000046E0000-0x00000000046F0000-memory.dmp

    Filesize

    64KB

  • memory/4536-59-0x0000000007030000-0x000000000703A000-memory.dmp

    Filesize

    40KB

  • memory/4536-60-0x0000000007240000-0x00000000072D6000-memory.dmp

    Filesize

    600KB

  • memory/4536-61-0x00000000071C0000-0x00000000071D1000-memory.dmp

    Filesize

    68KB

  • memory/4536-62-0x00000000071F0000-0x00000000071FE000-memory.dmp

    Filesize

    56KB

  • memory/4536-63-0x0000000007200000-0x0000000007214000-memory.dmp

    Filesize

    80KB

  • memory/4536-64-0x0000000007300000-0x000000000731A000-memory.dmp

    Filesize

    104KB

  • memory/4536-65-0x00000000072E0000-0x00000000072E8000-memory.dmp

    Filesize

    32KB

  • memory/4536-68-0x0000000075110000-0x00000000758C0000-memory.dmp

    Filesize

    7.7MB

  • memory/4536-20-0x00000000046E0000-0x00000000046F0000-memory.dmp

    Filesize

    64KB

  • memory/4536-18-0x0000000004D60000-0x0000000005388000-memory.dmp

    Filesize

    6.2MB

  • memory/4536-16-0x0000000075110000-0x00000000758C0000-memory.dmp

    Filesize

    7.7MB

  • memory/4536-15-0x00000000046F0000-0x0000000004726000-memory.dmp

    Filesize

    216KB