Analysis

  • max time kernel
    41s
  • max time network
    42s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    08-07-2022 14:43

General

  • Target

    d54021cfbb9b4555a56c44b67840144135b7f48db309b9d742ccf2ab905a9ea1.exe

  • Size

    300KB

  • MD5

    5b2a632e53f1a8dc2c9211232b9d38fa

  • SHA1

    35aad39a9b23286492f29e73ff3c52ef2e16ac23

  • SHA256

    d54021cfbb9b4555a56c44b67840144135b7f48db309b9d742ccf2ab905a9ea1

  • SHA512

    62129b43724e0f19413bf5b1f9a6503e1d1a055c6270f9e00428c09c0127f6582268e061e659643523124cc247c96b6cc51c52b2c86f80f3b0c4643d3a998ff8

Malware Config

Signatures

  • Taurus Stealer

    Taurus is an infostealer first seen in June 2020.

  • Taurus Stealer payload 5 IoCs
  • UPX packed file 1 IoCs

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

  • 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
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d54021cfbb9b4555a56c44b67840144135b7f48db309b9d742ccf2ab905a9ea1.exe
    "C:\Users\Admin\AppData\Local\Temp\d54021cfbb9b4555a56c44b67840144135b7f48db309b9d742ccf2ab905a9ea1.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1868
    • C:\Windows\SysWOW64\cmd.exe
      /c timeout /t 3 & del /f /q C:\Users\Admin\AppData\Local\Temp\d54021cfbb9b4555a56c44b67840144135b7f48db309b9d742ccf2ab905a9ea1.exe
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:1100
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 3
        3⤵
        • Delays execution with timeout.exe
        PID:776

Network

MITRE ATT&CK Matrix ATT&CK v6

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/776-62-0x0000000000000000-mapping.dmp
  • memory/1100-61-0x0000000000000000-mapping.dmp
  • memory/1868-54-0x0000000000400000-0x00000000047D4000-memory.dmp
    Filesize

    67.8MB

  • memory/1868-55-0x0000000000330000-0x0000000000366000-memory.dmp
    Filesize

    216KB

  • memory/1868-56-0x00000000759E1000-0x00000000759E3000-memory.dmp
    Filesize

    8KB

  • memory/1868-57-0x00000000002E0000-0x0000000000301000-memory.dmp
    Filesize

    132KB

  • memory/1868-58-0x0000000000400000-0x00000000047D4000-memory.dmp
    Filesize

    67.8MB

  • memory/1868-59-0x0000000000330000-0x0000000000366000-memory.dmp
    Filesize

    216KB

  • memory/1868-60-0x0000000000400000-0x00000000047D4000-memory.dmp
    Filesize

    67.8MB

  • memory/1868-63-0x0000000000400000-0x00000000047D4000-memory.dmp
    Filesize

    67.8MB