Overview

overview

10

Static

static

7

bfb8286490...2f.exe

windows7-x64

10

bfb8286490...2f.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    134s
  • max time network
    130s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    23-02-2023 02:19

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General

  • Target

    bfb8286490735f777b64ccdf4fa211e53b2ceb7a8d6cd1929760c211c58b972f.exe

  • Size

    355KB

  • MD5

    8ede2c513718db9aff6af9e587b24410

  • SHA1

    e32bcf8d62241a66ba3f748af0b505547b16de8c

  • SHA256

    bfb8286490735f777b64ccdf4fa211e53b2ceb7a8d6cd1929760c211c58b972f

  • SHA512

    d2bdf4ffe8ca3905f08da6a88d0289c9a3699ccb78a6aa03b294aac413fe340ee773946896e27a333867636d4974828ef62455b41fcbdd926ee0459304a04961

  • SSDEEP

    6144:mhb8VSeoQZP0MPkUonj5tQHTFdkelDnUEA6Fyz1+KqW40D1Kp4StY6Vw7uX:2IweoQR0MPktjsHUZeWD0Z7VQ

Score
10/10
blackmoongh0stratbankerpersistencerattrojan

Malware Config

Signatures

  • Blackmoon, KrBanker

    Blackmoon also known as KrBanker is banking trojan first discovered in early 2014.

    trojanbankerblackmoon
  • Detect Blackmoon payload 5 IoCs
  • Gh0st RAT payload 1 IoCs
  • Gh0strat

    Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.

    ratgh0strat
  • Loads dropped DLL 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • Suspicious behavior: EnumeratesProcesses 41 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\bfb8286490735f777b64ccdf4fa211e53b2ceb7a8d6cd1929760c211c58b972f.exe
    "C:\Users\Admin\AppData\Local\Temp\bfb8286490735f777b64ccdf4fa211e53b2ceb7a8d6cd1929760c211c58b972f.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Enumerates connected drives
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:1712
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\bfb8286490735f777b64ccdf4fa211e53b2ceb7a8d6cd1929760c211c58b972f.txt
      2⤵
      • Opens file in notepad (likely ransom note)
      PID:964

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\bfb8286490735f777b64ccdf4fa211e53b2ceb7a8d6cd1929760c211c58b972f.txt
    Filesize

    120KB

    MD5

    3aea5b78bac5359a799c2714fecccd1a

    SHA1

    5d3203b328ecfc7a55c0ded1032d209e9f273367

    SHA256

    c05e763cab67cf9daf5be7a6a6cff2650223987a9693eaa119f69b2bbb6df6c3

    SHA512

    9513cc84a7ed3dd709d4affb03f6e286dcd43e82f33441c00a9d74d2b45449f2ee20baa8db46218d7a59d9e62fb7f95050ea305166e70f3e71dde39ccf07b6d3

    Download Submit
  • \Users\Public\Documents\yrrgt.dll
    Filesize

    2KB

    MD5

    7943effe67a4647e06def2348949020e

    SHA1

    eabd561f0639a975de259633f63896d82c3f878d

    SHA256

    3fac47db92d581b2daef7a4f9493be2fe441041e5158101d80873d05808d5cfa

    SHA512

    c9db1962e7457c94426c2a5c7f439736697d4399db6982c45357459d58805daa4a9d297912135488b6990e265ffa59d687fd5ba43717aab46ccc212083ef5003

    Download Submit
  • memory/1712-65-0x00000000002E0000-0x00000000002E3000-memory.dmp
    Filesize

    12KB

    Download
  • memory/1712-87-0x0000000003930000-0x0000000003A1C000-memory.dmp
    Filesize

    944KB

    Download
  • memory/1712-60-0x0000000002160000-0x00000000021C6000-memory.dmp
    Filesize

    408KB

    Download
  • memory/1712-61-0x0000000002160000-0x00000000021C6000-memory.dmp
    Filesize

    408KB

    Download
  • memory/1712-63-0x0000000000400000-0x00000000004FB000-memory.dmp
    Filesize

    1004KB

    Download
  • memory/1712-64-0x0000000002160000-0x00000000021C6000-memory.dmp
    Filesize

    408KB

    Download
  • memory/1712-54-0x0000000000400000-0x00000000004FB000-memory.dmp
    Filesize

    1004KB

    Download
  • memory/1712-56-0x0000000000400000-0x00000000004FB000-memory.dmp
    Filesize

    1004KB

    Download
  • memory/1712-86-0x0000000003930000-0x0000000003A1C000-memory.dmp
    Filesize

    944KB

    Download
  • memory/1712-55-0x0000000000400000-0x00000000004FB000-memory.dmp
    Filesize

    1004KB

    Download
  • memory/1712-88-0x0000000000400000-0x0000000000427000-memory.dmp
    Filesize

    156KB

    Download
  • memory/1712-89-0x0000000003930000-0x0000000003A1C000-memory.dmp
    Filesize

    944KB

    Download
  • memory/1712-90-0x0000000010000000-0x0000000010017000-memory.dmp
    Filesize

    92KB

    Download
  • memory/1712-93-0x0000000000400000-0x0000000000427000-memory.dmp
    Filesize

    156KB

    Download
  • memory/1712-103-0x0000000002160000-0x00000000021C6000-memory.dmp
    Filesize

    408KB

    Download
  • memory/1712-104-0x0000000002160000-0x00000000021C6000-memory.dmp
    Filesize

    408KB

    Download
  • memory/1712-105-0x0000000000400000-0x00000000004FB000-memory.dmp
    Filesize

    1004KB

    Download