Analysis

  • max time kernel
    47s
  • max time network
    117s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    16-05-2022 16:24

General

  • Target

    49dd1543bfee5615840f41c345db942cc0e8ed457a2aaaf9c2675aaf72872701.exe

  • Size

    344KB

  • MD5

    b3fad346307496a5c2bae39e984e77bd

  • SHA1

    5d291bb4318d74ab00ee818bb43f5b91d6ca84cc

  • SHA256

    49dd1543bfee5615840f41c345db942cc0e8ed457a2aaaf9c2675aaf72872701

  • SHA512

    f04c16fc0208f37af50d9c9f991beff799fca269cabd5c8d188e15cdf7b3bf90c0eac11e6478d92d0b07e8ab3fdb02a0008e916aa8eee3f6b98925a57258ddb2

Malware Config

Signatures

  • Taurus Stealer

    Taurus is an infostealer first seen in June 2020.

  • Taurus Stealer Payload 2 IoCs
  • Deletes itself 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Delays execution with timeout.exe 1 IoCs
  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\49dd1543bfee5615840f41c345db942cc0e8ed457a2aaaf9c2675aaf72872701.exe
    "C:\Users\Admin\AppData\Local\Temp\49dd1543bfee5615840f41c345db942cc0e8ed457a2aaaf9c2675aaf72872701.exe"
    1⤵
    • Modifies system certificate store
    • Suspicious use of WriteProcessMemory
    PID:1348
    • C:\Windows\SysWOW64\cmd.exe
      /c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\Temp\49dd1543bfee5615840f41c345db942cc0e8ed457a2aaaf9c2675aaf72872701.exe
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:1540
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 3
        3⤵
        • Delays execution with timeout.exe
        PID:872

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Install Root Certificate

1
T1130

Modify Registry

1
T1112

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

1
T1012

Collection

Data from Local System

2
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/872-59-0x0000000000000000-mapping.dmp
  • memory/1348-54-0x0000000076531000-0x0000000076533000-memory.dmp
    Filesize

    8KB

  • memory/1348-55-0x000000000058B000-0x00000000005AC000-memory.dmp
    Filesize

    132KB

  • memory/1348-56-0x00000000002A0000-0x00000000002D5000-memory.dmp
    Filesize

    212KB

  • memory/1348-57-0x0000000000400000-0x00000000004FC000-memory.dmp
    Filesize

    1008KB

  • memory/1540-58-0x0000000000000000-mapping.dmp