Analysis

  • max time kernel
    147s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-11-2022 05:52

General

  • Target

    freight invoices no 5634521.exe

  • Size

    6KB

  • MD5

    78e6732cbb52224998c71e85f84aa0aa

  • SHA1

    e2104d3f3b71ffb5f955f26dc42ec750e942e5bb

  • SHA256

    d2e229f7b947a970e3e102a72c3029ae532306c846186696bf275abf9a182a97

  • SHA512

    2b3174b3bb8d55a0af5a43ee9704d140ae465869ab127d093da512ef9bebc75f7900c88a70e93318ac86f1899bbc0829bb02d32d1ac5ad25b73c79b708b3ad0e

  • SSDEEP

    96:PbGgkLgKQBpTZ1rq+khl7kXyHhnl674F3GnUODL:PbGgkMF9Y+kP7kX61ZFv0

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5544798312:AAFCE9wlKN3YHM9MGYnKgWUb8D_lz2PBmQ8/

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
  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\freight invoices no 5634521.exe
    "C:\Users\Admin\AppData\Local\Temp\freight invoices no 5634521.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2148
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMwAwAA==
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:4444
    • C:\Users\Admin\AppData\Local\Temp\freight invoices no 5634521.exe
      "C:\Users\Admin\AppData\Local\Temp\freight invoices no 5634521.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • outlook_office_path
      • outlook_win_path
      PID:5076

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\freight invoices no 5634521.exe.log

    Filesize

    1KB

    MD5

    e87e48b105757e1c7563d1c719059733

    SHA1

    28a3f2b2e0672da2b531f4757d2b20b53032dafc

    SHA256

    0aaf22dc84cc3fcfe53de7ccfed8e662247dfb7f1a9967032c88790d0c663461

    SHA512

    bf19c5743143aee914a453c41189c722c9b90a5b8bf299cecf3e1f97656d32cd209ecb74da8aebc89bb41c27d189f73aaaabbc64fe383410c95dc76ad4218968

  • memory/2148-132-0x0000000000C60000-0x0000000000C68000-memory.dmp

    Filesize

    32KB

  • memory/2148-133-0x00000000070D0000-0x00000000070F2000-memory.dmp

    Filesize

    136KB

  • memory/4444-136-0x00000000051F0000-0x0000000005818000-memory.dmp

    Filesize

    6.2MB

  • memory/4444-137-0x0000000005890000-0x00000000058F6000-memory.dmp

    Filesize

    408KB

  • memory/4444-138-0x0000000005A00000-0x0000000005A66000-memory.dmp

    Filesize

    408KB

  • memory/4444-139-0x0000000006050000-0x000000000606E000-memory.dmp

    Filesize

    120KB

  • memory/4444-140-0x00000000078A0000-0x0000000007F1A000-memory.dmp

    Filesize

    6.5MB

  • memory/4444-141-0x0000000006540000-0x000000000655A000-memory.dmp

    Filesize

    104KB

  • memory/4444-135-0x0000000004AA0000-0x0000000004AD6000-memory.dmp

    Filesize

    216KB

  • memory/5076-143-0x0000000000400000-0x000000000043A000-memory.dmp

    Filesize

    232KB

  • memory/5076-145-0x0000000005900000-0x0000000005EA4000-memory.dmp

    Filesize

    5.6MB

  • memory/5076-146-0x0000000005470000-0x000000000550C000-memory.dmp

    Filesize

    624KB

  • memory/5076-147-0x0000000006680000-0x00000000066D0000-memory.dmp

    Filesize

    320KB

  • memory/5076-148-0x0000000006EA0000-0x0000000006F32000-memory.dmp

    Filesize

    584KB

  • memory/5076-149-0x0000000006E80000-0x0000000006E8A000-memory.dmp

    Filesize

    40KB