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Overview

overview

8

Static

static

3

c0970a7ba4...a5.exe

windows7-x64

8

c0970a7ba4...a5.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    149s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240709-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/07/2024, 06:08

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General

  • Target

    c0970a7ba4c8a986c168aecce3514561ebb6d97672631642b4f44c11a42a4fa5.exe

  • Size

    408KB

  • MD5

    720cba07a7923c7462732a8c100408c4

  • SHA1

    b8bdea7d977fd34b63d9b531d4231d891e386f60

  • SHA256

    c0970a7ba4c8a986c168aecce3514561ebb6d97672631642b4f44c11a42a4fa5

  • SHA512

    72a9e4a6276cf992b9bd0deb48196574a39b0495cac8f72f6db70cb1bccf13d99f227966ec1cc5d698c1921768426b872d87e423bc9ef806436721d05fe3f030

  • SSDEEP

    6144:3w9D91dOrcN3ZGXNYFNmIkYvUIelVjjVtGRyFH4g:gtRfJcNYFNm8UhlZGseg

Score
8/10
bootkitdiscoverypersistencespywarestealer

Malware Config

Signatures

  • Blocklisted process makes network request 8 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Enumerates connected drives 3 TTPs 23 IoCs

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

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence
  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

    discovery
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c0970a7ba4c8a986c168aecce3514561ebb6d97672631642b4f44c11a42a4fa5.exe
    "C:\Users\Admin\AppData\Local\Temp\c0970a7ba4c8a986c168aecce3514561ebb6d97672631642b4f44c11a42a4fa5.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2020
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\wmkwu.exe "C:\Users\Admin\AppData\Local\Temp\c0970a7ba4c8a986c168aecce3514561ebb6d97672631642b4f44c11a42a4fa5.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:540
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1 -n 2
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Runs ping.exe
        PID:1376
      • C:\Users\Admin\AppData\Local\Temp\wmkwu.exe
        C:\Users\Admin\AppData\Local\Temp\\wmkwu.exe "C:\Users\Admin\AppData\Local\Temp\c0970a7ba4c8a986c168aecce3514561ebb6d97672631642b4f44c11a42a4fa5.exe"
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2608
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\Program Files\ztbfl\bbbtn.dll",Verify C:\Users\Admin\AppData\Local\Temp\wmkwu.exe
          4⤵
          • Blocklisted process makes network request
          • Loads dropped DLL
          • Adds Run key to start application
          • Enumerates connected drives
          • Writes to the Master Boot Record (MBR)
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:2632

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Peripheral Device Discovery

1
T1120

Query Registry

2
T1012

Remote System Discovery

1
T1018

System Information Discovery

2
T1082

System Location Discovery

1
T1614

System Language Discovery

1
T1614.001

System Network Configuration Discovery

1
T1016

Internet Connection Discovery

1
T1016.001

Lateral Movement

Collection

Data from Local System

1
T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\wmkwu.exe
    Filesize

    408KB

    MD5

    f1969bf50961e48d657aefc102517bab

    SHA1

    679bfcfb58c92d9f3432de3cc49b58ae0c7074c2

    SHA256

    f76ed270d45ba452f0a44227fc84b1634be7f01350438eed6e868c56831cf3fa

    SHA512

    fd76329bc97b03a1b2bb0241e35df29cb0f40e6046313bc7f3256b1bab61d69feefd5b3b43b98981efef4f2d8a97544b0d651643ce2376d59ebab3bbcc0068c4

    Download Submit

  • \??\c:\Program Files\ztbfl\bbbtn.dll
    Filesize

    228KB

    MD5

    9824e1b5d8794f87e86445e6bea25f7e

    SHA1

    15cf2bae4172e7f07eb026e638a6026bee82a9d3

    SHA256

    8d04c423b89ba0f6879f0d50079a4a4c35237a9c95ce6d8ac0ca221047eb198a

    SHA512

    2dc863ede53a7e305fed954d6c54b520470c08bf07be3c73104b8d9fde608fa33c93ea24908153ce22ad5981196508f8b9b892ab6e0a521c975c862b76c1d671

    Download Submit

  • memory/2020-0-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download

  • memory/2020-2-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download

  • memory/2608-7-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download

  • memory/2632-10-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

    Download

  • memory/2632-11-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

    Download

  • memory/2632-13-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

    Download