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Overview

overview

7

Static

static

3

f62d085e06...0N.exe

windows7-x64

7

f62d085e06...0N.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    112s
  • max time network
    120s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/09/2024, 14:54

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General

  • Target

    f62d085e06107ce329a5d835450341a0N.exe

  • Size

    668KB

  • MD5

    f62d085e06107ce329a5d835450341a0

  • SHA1

    6a87fb69bfb5b8feac2917e045c1050f3bf89a4a

  • SHA256

    37562391d980b641e9dbb4845749ad8d9f0df9eef1df50a3c08e7b578b7af38b

  • SHA512

    8beb387d1419086062bcf1493ee45f14db21ae0eca2f47acaa744c73fb0dff3c231ac74e9a5021bc94e11aa5dcccd9239d184d989b387d07673aadad3621e36c

  • SSDEEP

    12288:cSfSps28tL4l4Xzqs4f2S3heRW2ULNLw6VNCsJlgDaKAN:f0O0WX1rSxIW2oNxmYlgDaKAN

Score
7/10
bootkitdiscoverypersistencespywarestealer

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 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
  • Drops file in Program Files directory 4 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 4 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\f62d085e06107ce329a5d835450341a0N.exe
    "C:\Users\Admin\AppData\Local\Temp\f62d085e06107ce329a5d835450341a0N.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1512
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\hvnbddjc.exe "C:\Users\Admin\AppData\Local\Temp\f62d085e06107ce329a5d835450341a0N.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:4124
      • 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:2872
      • C:\Users\Admin\AppData\Local\Temp\hvnbddjc.exe
        C:\Users\Admin\AppData\Local\Temp\\hvnbddjc.exe "C:\Users\Admin\AppData\Local\Temp\f62d085e06107ce329a5d835450341a0N.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:3772
        • \??\c:\Program Files\kcsmm\eecquhsst.exe
          "c:\Program Files\kcsmm\eecquhsst.exe" "c:\Program Files\kcsmm\eecquhsst.dll",Dispatch C:\Users\Admin\AppData\Local\Temp\hvnbddjc.exe
          4⤵
          • Executes dropped EXE
          • Loads dropped DLL
          • Adds Run key to start application
          • Enumerates connected drives
          • Writes to the Master Boot Record (MBR)
          • System Location Discovery: System Language Discovery
          • Checks processor information in registry
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4368

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:\Program Files\kcsmm\eecquhsst.exe
    Filesize

    60KB

    MD5

    889b99c52a60dd49227c5e485a016679

    SHA1

    8fa889e456aa646a4d0a4349977430ce5fa5e2d7

    SHA256

    6cbe0e1f046b13b29bfa26f8b368281d2dda7eb9b718651d5856f22cc3e02910

    SHA512

    08933106eaf338dd119c45cbf1f83e723aff77cc0f8d3fc84e36253b1eb31557a54211d1d5d1cb58958188e32064d451f6c66a24b3963cccd3de07299ab90641

    Download Submit

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

    668KB

    MD5

    cbe60c22e1eff21b725b062b2bdf2523

    SHA1

    a2193c7480aa61c2cf5dbaaa88fb812993a8afc5

    SHA256

    688599bd312321dec65feb7ef6ddb617d17f71020f887bdff6cc543a98bd943e

    SHA512

    066564839fed1501c0714d76b9e286ae7b56b98f52cbb6731db9b1feaeef76db38855d81ab5c45f140cfabf63dfe8e02366e077b9b3717ce3d69d597d4686e1c

    Download Submit

  • \??\c:\Program Files\kcsmm\eecquhsst.dll
    Filesize

    210KB

    MD5

    e04521118c4132799eddb5fd98e67c05

    SHA1

    14f5d03550225370391fe0a24a9be5d9d293b685

    SHA256

    9a0597197a9890fefaac5de55746c24f058b2ad8fec89ef4cd2873e0d7d125a4

    SHA512

    008a50c9aa4f1040b1eadd9aa6e5de47b8136220ae1468020d254acb56626ed86ea3fa9f8e281e62e6c5c9ed4303d0cfcf5735e69de63023cd52d868e30d4f22

    Download Submit

  • memory/1512-0-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

    Download

  • memory/1512-2-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

    Download

  • memory/3772-10-0x0000000000400000-0x00000000004A0000-memory.dmp

    Filesize

    640KB

    Download

  • memory/4368-14-0x0000000010000000-0x000000001005F000-memory.dmp

    Filesize

    380KB

    Download

  • memory/4368-19-0x0000000000F60000-0x0000000000F62000-memory.dmp

    Filesize

    8KB

    Download

  • memory/4368-17-0x0000000010000000-0x000000001005F000-memory.dmp

    Filesize

    380KB

    Download

  • memory/4368-15-0x0000000010000000-0x000000001005F000-memory.dmp

    Filesize

    380KB

    Download

  • memory/4368-20-0x0000000010000000-0x000000001005F000-memory.dmp

    Filesize

    380KB

    Download

  • memory/4368-23-0x0000000010000000-0x000000001005F000-memory.dmp

    Filesize

    380KB

    Download

  • memory/4368-25-0x0000000010000000-0x000000001005F000-memory.dmp

    Filesize

    380KB

    Download

  • memory/4368-31-0x0000000010000000-0x000000001005F000-memory.dmp

    Filesize

    380KB

    Download