Analysis

  • max time kernel
    150s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    01-08-2023 20:57

General

  • Target

    Bitwithstart.exe

  • Size

    1.4MB

  • MD5

    86d3ac33ff8836d4f349bdfcf8d7eb05

  • SHA1

    a46ca414a72a32d33a6ac88579a1d3cb084f5f63

  • SHA256

    692933bda23e175d356d9dedffd90865a650a23cf86bf119a1276c16fc63ae8f

  • SHA512

    13f5dc1d4913f96d83981235d2365f1f951b41fb8db6914e605f48fd12de702ab2d61336d882e9b8763c6cd638d313e39350a7e3d51acf6dbf8ed709ec2ba30e

  • SSDEEP

    24576:ondRKZCy2BrhCeU2i2cJijFbCBTPmiY05tJMSQp5ysA7Yg1nLkzEYYltVsiw:6XDFBU2iIBb0xY/6sUYYqYy

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

backu4734.duckdns.org:7904

Attributes
  • communication_password

    202cb962ac59075b964b07152d234b70

  • install_dir

    ndjej

  • install_file

    jdfh.exe

  • tor_process

    tor

Signatures

  • BitRAT

    BitRAT is a remote access tool written in C++ and uses leaked source code from other families.

  • UPX packed file 2 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
  • Suspicious behavior: RenamesItself 30 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Bitwithstart.exe
    "C:\Users\Admin\AppData\Local\Temp\Bitwithstart.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: RenamesItself
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:2212

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

Replay Monitor

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Downloads

  • memory/2212-54-0x0000000000400000-0x00000000007E4000-memory.dmp
    Filesize

    3.9MB

  • memory/2212-55-0x0000000000400000-0x00000000007E4000-memory.dmp
    Filesize

    3.9MB