Overview

overview

10

Static

static

10

870ac2d238...9f.exe

windows7-x64

7

870ac2d238...9f.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    24-05-2024 04:43

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General

  • Target

    870ac2d23832064757034f4976677865d8568087d5e01a128efc0a552875f49f.exe

  • Size

    3.4MB

  • MD5

    014e474c9d0019166d3273f801e523d2

  • SHA1

    6696772d907cd2c7864315bb87732adc6471b032

  • SHA256

    870ac2d23832064757034f4976677865d8568087d5e01a128efc0a552875f49f

  • SHA512

    ca6a44684d5063da667d81eee855228cab4495bad7218fcff11eb27032de107c59218427afab7ebda616f92ab5a21004745c79fc731da9d02a46a53bc6a447d7

  • SSDEEP

    49152:zEjEamQb2OguN8Dfk5JEG14wv2QwnN4iTapOcaPKfjtD8cEOxeuxzS2hPV5T1gW8:zEjlmQbfgSgwvSnN4iVJuS0xJdzYUq1

Score
7/10
bootkitpersistence

Malware Config

Signatures

  • Loads dropped DLL 1 IoCs
  • Enumerates connected drives 3 TTPs 1 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 behavior: EnumeratesProcesses 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\870ac2d23832064757034f4976677865d8568087d5e01a128efc0a552875f49f.exe
    "C:\Users\Admin\AppData\Local\Temp\870ac2d23832064757034f4976677865d8568087d5e01a128efc0a552875f49f.exe"
    1⤵
    • Loads dropped DLL
    • Enumerates connected drives
    • Writes to the Master Boot Record (MBR)
    • Suspicious behavior: EnumeratesProcesses
    PID:2172

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Privilege Escalation

Defense Evasion

Pre-OS Boot

1
T1542

Bootkit

1
T1542.003

Credential Access

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Tencent\TxGameAssistant\TGBDownloader\dr.dll
    Filesize

    74KB

    MD5

    2814acbd607ba47bdbcdf6ac3076ee95

    SHA1

    50ab892071bed2bb2365ca1d4bf5594e71c6b13b

    SHA256

    5904a7e4d97eeac939662c3638a0e145f64ff3dd0198f895c4bf0337595c6a67

    SHA512

    34c73014ffc8d38d6dd29f4f84c8f4f9ea971bc131f665f65b277f453504d5efc2d483a792cdea610c5e0544bf3997b132dcdbe37224912c5234c15cdb89d498

    Download Submit
  • memory/2172-5-0x0000000000160000-0x000000000016A000-memory.dmp
    Filesize

    40KB

    Download
  • memory/2172-4-0x0000000000160000-0x000000000016A000-memory.dmp
    Filesize

    40KB

    Download
  • memory/2172-11-0x0000000000160000-0x000000000016A000-memory.dmp
    Filesize

    40KB

    Download
  • memory/2172-10-0x0000000000160000-0x000000000016A000-memory.dmp
    Filesize

    40KB

    Download