Analysis

  • max time kernel
    134s
  • max time network
    91s
  • platform
    windows10_x64
  • resource
    win10v200430
  • submitted
    07-07-2020 17:24

General

  • Target

    Data Sheet.exe

  • Size

    623KB

  • MD5

    c547dc9b16fab08be2031db5d1d4b115

  • SHA1

    8dd7522d227d1a7e65dbdff56ec3b0ec622645fe

  • SHA256

    1132a1b1791adcf0f75bbde81828976f2cf222ed605abf3d363f9fa90ee208bd

  • SHA512

    71648b7ec372a364262b26c8d1532eadccbf7d00ac2fe58ce303a59d401e762222d529ddb923311537356c3212c393159b6cfe57bf81930864e2cfaf30060c74

Malware Config

Extracted

Family

azorult

C2

http://165.22.238.171/index.php

Signatures

  • 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 data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious use of WriteProcessMemory 3 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Loads dropped DLL 5 IoCs
  • Azorult

    An information stealer that was first discovered in 2016, targeting browsing history and passwords.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Checks for installed software on the system 1 TTPs 31 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Data Sheet.exe
    "C:\Users\Admin\AppData\Local\Temp\Data Sheet.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    • Suspicious behavior: MapViewOfSection
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetThreadContext
    PID:808
    • C:\Users\Admin\AppData\Local\Temp\Data Sheet.exe
      "C:\Users\Admin\AppData\Local\Temp\Data Sheet.exe"
      2⤵
      • Checks processor information in registry
      • Loads dropped DLL
      • Suspicious behavior: EnumeratesProcesses
      • Checks for installed software on the system
      PID:856

Network

MITRE ATT&CK Matrix ATT&CK v6

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\Temp\2fda\mozglue.dll
  • \Users\Admin\AppData\Local\Temp\2fda\msvcp140.dll
  • \Users\Admin\AppData\Local\Temp\2fda\nss3.dll
  • \Users\Admin\AppData\Local\Temp\2fda\vcruntime140.dll
  • \Users\Admin\AppData\Local\Temp\2fda\vcruntime140.dll
  • memory/856-1-0x000000000041A1F8-mapping.dmp
  • memory/856-0-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/856-2-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB