Analysis

  • max time kernel
    99s
  • max time network
    102s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    21-11-2020 20:54

General

  • Target

    3b1dc7e0c9154fe384c695f8eec5622ab2ba88bf59d990def6b2c11d8519cecf.exe

  • Size

    1.6MB

  • MD5

    3c92d4e743bd7d72ea967445fee5cdf8

  • SHA1

    d00b20bfaf832d479cdfc23168de03c3e8209468

  • SHA256

    3b1dc7e0c9154fe384c695f8eec5622ab2ba88bf59d990def6b2c11d8519cecf

  • SHA512

    4349e789033c1c31858ab73865a341d12ed5e9c6542da620a889ca1af094ec92804587130936b50c8329335c3df649d758084ab96783a132a4d649918f4a1c20

Malware Config

Signatures

  • ModiLoader, DBatLoader

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

  • ModiLoader First Stage 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3b1dc7e0c9154fe384c695f8eec5622ab2ba88bf59d990def6b2c11d8519cecf.exe
    "C:\Users\Admin\AppData\Local\Temp\3b1dc7e0c9154fe384c695f8eec5622ab2ba88bf59d990def6b2c11d8519cecf.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:576
    • C:\Users\Admin\AppData\Local\Temp\3b1dc7e0c9154fe384c695f8eec5622ab2ba88bf59d990def6b2c11d8519cecf.exe
      "C:\Users\Admin\AppData\Local\Temp\3b1dc7e0c9154fe384c695f8eec5622ab2ba88bf59d990def6b2c11d8519cecf.exe"
      2⤵
      • Writes to the Master Boot Record (MBR)
      PID:1240

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Bootkit

1
T1067

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/576-0-0x0000000073E00000-0x00000000744EE000-memory.dmp
    Filesize

    6.9MB

  • memory/576-1-0x00000000008A0000-0x00000000008A1000-memory.dmp
    Filesize

    4KB

  • memory/576-3-0x00000000057D0000-0x00000000057D1000-memory.dmp
    Filesize

    4KB

  • memory/576-4-0x00000000052D0000-0x00000000052D1000-memory.dmp
    Filesize

    4KB

  • memory/576-5-0x0000000005280000-0x0000000005281000-memory.dmp
    Filesize

    4KB

  • memory/576-6-0x0000000006F40000-0x000000000703B000-memory.dmp
    Filesize

    1004KB

  • memory/576-7-0x0000000007630000-0x00000000076AD000-memory.dmp
    Filesize

    500KB

  • memory/576-8-0x00000000078B0000-0x00000000078C6000-memory.dmp
    Filesize

    88KB

  • memory/1240-9-0x0000000000400000-0x0000000000488000-memory.dmp
    Filesize

    544KB

  • memory/1240-10-0x000000000046C7B8-mapping.dmp
  • memory/1240-11-0x0000000000400000-0x0000000000488000-memory.dmp
    Filesize

    544KB