Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02-06-2024 19:26

General

  • Target

    19e78d4d902853cdd11a4d826f03dd6fcaaa856c080651df22fa26dd5f3f53a6.exe

  • Size

    130KB

  • MD5

    6beabbaccc7b872fdb9f706c27f44a20

  • SHA1

    f7fee0c8b9c72893ca11df3ec17f534dbd56b5ab

  • SHA256

    19e78d4d902853cdd11a4d826f03dd6fcaaa856c080651df22fa26dd5f3f53a6

  • SHA512

    4d915b29bfbf0a937ea5071ea770bf713cefde6de2094e83e54fa47ee8a9f8b280a4bfc1f3a978ac629533364bfdc1d9da8fb74e55388a1c9d83101caa049c79

  • SSDEEP

    1536:eH1ZaQvR1KiX3NK6I+hZhYrt/w5Q6G6IpiRYzz9qJHhhnm0yG5aP/5UROXTmZ:SKQJcinxphkG5Q6GdpIOkJHhKRyOXK

Malware Config

Signatures

  • ModiLoader, DBatLoader

    ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

  • Detects Windows executables referencing non-Windows User-Agents 5 IoCs
  • ModiLoader Second Stage 5 IoCs
  • UPX dump on OEP (original entry point) 13 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 3 IoCs
  • UPX packed file 13 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\19e78d4d902853cdd11a4d826f03dd6fcaaa856c080651df22fa26dd5f3f53a6.exe
    "C:\Users\Admin\AppData\Local\Temp\19e78d4d902853cdd11a4d826f03dd6fcaaa856c080651df22fa26dd5f3f53a6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1500
    • C:\Users\Admin\AppData\Local\Temp\19e78d4d902853cdd11a4d826f03dd6fcaaa856c080651df22fa26dd5f3f53a6.exe
      "C:\Users\Admin\AppData\Local\Temp\19e78d4d902853cdd11a4d826f03dd6fcaaa856c080651df22fa26dd5f3f53a6.exe"
      2⤵
      • Checks computer location settings
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4848
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\WESRD.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1872
        • C:\Windows\SysWOW64\reg.exe
          REG ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v ".Flasfh" /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\..Flash\Flaseher.exe" /f
          4⤵
          • Adds Run key to start application
          PID:5080
      • C:\Users\Admin\AppData\Roaming\..Flash\Flaseher.exe
        "C:\Users\Admin\AppData\Roaming\..Flash\Flaseher.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:4676
        • C:\Users\Admin\AppData\Roaming\..Flash\Flaseher.exe
          "C:\Users\Admin\AppData\Roaming\..Flash\Flaseher.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:4772
        • C:\Users\Admin\AppData\Roaming\..Flash\Flaseher.exe
          "C:\Users\Admin\AppData\Roaming\..Flash\Flaseher.exe"
          4⤵
          • Executes dropped EXE
          PID:2028

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\WESRD.txt
    Filesize

    145B

    MD5

    da0cbe87b720a79b294147ed6a4b98be

    SHA1

    ebf0dc9efd7a12cb192e355cda87546acb4ab360

    SHA256

    7ccfeff356fdccc9145bd1e263aa1c56360ca7b6552ed5a5665c596d02a627ed

    SHA512

    f55c4a3d24d2f11db5eda3c816d1cd3b8804a171a7bf715b13d60788247fbb352eafaa5bd4e0a8086c1013396be0a48c7bdb904ab0f974fa0c75e81e3d365acc

  • C:\Users\Admin\AppData\Roaming\..Flash\Flaseher.exe
    Filesize

    130KB

    MD5

    7cf9d3e214cde1c39797a066eb7303e9

    SHA1

    ce60c7f7466370ab558a71dc10a1294dcce7597a

    SHA256

    76ec6c3d016e552fceb0eae5ff02f289a402655dbc3a14e766b924c9c84e1c7a

    SHA512

    cfc75bb1fbf2ce2ed08c0bd3bc563f07d60b8db4456aebfc78774a34e5bdbaba0ce2eefb17ac12e34a3e032b704645ede8b2f54a96fbb5a6fb8907f925bf8dcf

  • memory/1500-5-0x0000000002AD0000-0x0000000002AD1000-memory.dmp
    Filesize

    4KB

  • memory/1500-4-0x0000000002A90000-0x0000000002A91000-memory.dmp
    Filesize

    4KB

  • memory/1500-3-0x0000000002A60000-0x0000000002A61000-memory.dmp
    Filesize

    4KB

  • memory/1500-6-0x0000000002B40000-0x0000000002B41000-memory.dmp
    Filesize

    4KB

  • memory/1500-0-0x0000000000400000-0x0000000000423000-memory.dmp
    Filesize

    140KB

  • memory/1500-10-0x0000000002B60000-0x0000000002B61000-memory.dmp
    Filesize

    4KB

  • memory/1500-12-0x0000000000400000-0x0000000000423000-memory.dmp
    Filesize

    140KB

  • memory/2028-47-0x0000000000400000-0x0000000000411000-memory.dmp
    Filesize

    68KB

  • memory/2028-53-0x0000000000400000-0x0000000000411000-memory.dmp
    Filesize

    68KB

  • memory/2028-50-0x0000000000400000-0x0000000000411000-memory.dmp
    Filesize

    68KB

  • memory/2028-55-0x0000000000400000-0x0000000000411000-memory.dmp
    Filesize

    68KB

  • memory/2028-51-0x0000000000400000-0x0000000000411000-memory.dmp
    Filesize

    68KB

  • memory/4676-36-0x0000000000400000-0x0000000000423000-memory.dmp
    Filesize

    140KB

  • memory/4676-43-0x0000000000400000-0x0000000000423000-memory.dmp
    Filesize

    140KB

  • memory/4676-40-0x0000000000400000-0x0000000000423000-memory.dmp
    Filesize

    140KB

  • memory/4676-39-0x0000000000400000-0x0000000000423000-memory.dmp
    Filesize

    140KB

  • memory/4676-54-0x0000000000400000-0x0000000000423000-memory.dmp
    Filesize

    140KB

  • memory/4772-58-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/4848-11-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/4848-9-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/4848-7-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB

  • memory/4848-56-0x0000000000400000-0x000000000040B000-memory.dmp
    Filesize

    44KB