Overview

overview

8

Static

static

3

5125b846ca...c5.exe

windows7-x64

8

5125b846ca...c5.exe

windows10-2004-x64

8

Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    23/08/2024, 05:29

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General

  • Target

    5125b846ca814db1e09a5ad4d07dc4f6c1c4db43e9339d2cce91d0a2b32ceec5.exe

  • Size

    410KB

  • MD5

    7086c568f5eacbebf840333d96f482e9

  • SHA1

    319b68c84c2c8f70dd401d1123d0608d5ca67eb4

  • SHA256

    5125b846ca814db1e09a5ad4d07dc4f6c1c4db43e9339d2cce91d0a2b32ceec5

  • SHA512

    705f8e962f1dc50ca66cbc4ce8936ed41fc1a5681d828e7c9797ab97328c7ef680a2b4cf81d2c124b82220c26dfd0052dc04e95360db2e8bca1dbc04ac88c326

  • SSDEEP

    6144:3w9D91dOrcN3ZGXNYFNmIkYvUIelVjjVtGRyFH4:gtRfJcNYFNm8UhlZGse

Score
8/10
bootkitdiscoverypersistencespywarestealer

Malware Config

Signatures

  • Blocklisted process makes network request 10 IoCs
  • Deletes itself 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 6 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 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5125b846ca814db1e09a5ad4d07dc4f6c1c4db43e9339d2cce91d0a2b32ceec5.exe
    "C:\Users\Admin\AppData\Local\Temp\5125b846ca814db1e09a5ad4d07dc4f6c1c4db43e9339d2cce91d0a2b32ceec5.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2540
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c ping 127.0.0.1 -n 2&C:\Users\Admin\AppData\Local\Temp\\xdnbbhqx.exe "C:\Users\Admin\AppData\Local\Temp\5125b846ca814db1e09a5ad4d07dc4f6c1c4db43e9339d2cce91d0a2b32ceec5.exe"
      2⤵
      • Loads dropped DLL
      • System Location Discovery: System Language Discovery
      • System Network Configuration Discovery: Internet Connection Discovery
      • Suspicious use of WriteProcessMemory
      PID:1240
      • 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:2908
      • C:\Users\Admin\AppData\Local\Temp\xdnbbhqx.exe
        C:\Users\Admin\AppData\Local\Temp\\xdnbbhqx.exe "C:\Users\Admin\AppData\Local\Temp\5125b846ca814db1e09a5ad4d07dc4f6c1c4db43e9339d2cce91d0a2b32ceec5.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:2692
        • \??\c:\windows\SysWOW64\rundll32.exe
          c:\windows\system32\rundll32.exe "c:\Program Files\tvnfa\hkmtcbvin.dll",Verify C:\Users\Admin\AppData\Local\Temp\xdnbbhqx.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:2816

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

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Downloads

  • \??\c:\Program Files\tvnfa\hkmtcbvin.dll
    Filesize

    228KB

    MD5

    2d333166887e81550c27675c97418f93

    SHA1

    495633abf59a1d4d91699ddecdc86d8f3962370d

    SHA256

    83cd6666fa0f36c7c07ee52137fc65bdca315009b0d3c7f59b737cb93a11b4bf

    SHA512

    ee7f84d9ce689fe00d2fc902adedbf1d6fb570eee9a679bfcd6e99d4d860ee10d35314da378d9ce420e97095dd45de10543d9c5fb861bf4f343e750de1213240

    Download Submit

  • \Users\Admin\AppData\Local\Temp\xdnbbhqx.exe
    Filesize

    410KB

    MD5

    d5fa77312fb5b702116d6562ad7918fd

    SHA1

    a7f363a20e73aa1b16b8fec1111f8a11ebcf53af

    SHA256

    214d6de1e762134fc5c3b07baddf1c6acc5c8e0ff89e7eb091239bd2785cec90

    SHA512

    c64f9df5e8cc00a4ee9c606e04c9dfddd9ae872d198a1a115fc101a909af00ea80c0e57ac431843d80e645a260cfb02987a09118a56e99ce229182f37383b286

    Download Submit

  • memory/1240-7-0x0000000000270000-0x00000000002D4000-memory.dmp

    Filesize

    400KB

    Download

  • memory/1240-6-0x0000000000270000-0x00000000002D4000-memory.dmp

    Filesize

    400KB

    Download

  • memory/2540-0-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download

  • memory/2540-2-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download

  • memory/2692-10-0x0000000000400000-0x0000000000464000-memory.dmp

    Filesize

    400KB

    Download

  • memory/2816-16-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

    Download

  • memory/2816-18-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

    Download

  • memory/2816-19-0x0000000010000000-0x0000000010080000-memory.dmp

    Filesize

    512KB

    Download