Analysis

  • max time kernel
    140s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    24-05-2024 07:41

General

  • Target

    04196b8a0869c9f19b3805b4f861a0e1.exe

  • Size

    6.6MB

  • MD5

    04196b8a0869c9f19b3805b4f861a0e1

  • SHA1

    8ed2478e15af46fa12059bc2e47cc638f3238fb0

  • SHA256

    34f4c84b4046eb6c9b1a30ebaecc226f60170d8c575319354ae120c40e589973

  • SHA512

    84f9f1de0c8bacce56917e401b8d5ff6a5613b9e231877e8d8be37bdfc03718605f2de39066bafb7fa44435d6eab840ed9c4868716d5127c86f2111b24786e82

  • SSDEEP

    98304:txondzNbVrqNn9C18EPukfT6fys71nMBEKew2OfVcc:LSbqNn9C1LfT6nyBEKew2OfVcc

Malware Config

Signatures

  • Modifies firewall policy service 2 TTPs 1 IoCs
  • PrivateLoader

    PrivateLoader is a downloader sold as a pay-per-install malware distribution service.

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Themida packer 6 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Looks up external IP address via web service 4 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 4 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Modifies system certificate store 2 TTPs 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\04196b8a0869c9f19b3805b4f861a0e1.exe
    "C:\Users\Admin\AppData\Local\Temp\04196b8a0869c9f19b3805b4f861a0e1.exe"
    1⤵
    • Modifies firewall policy service
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks whether UAC is enabled
    • Drops file in System32 directory
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Modifies system certificate store
    PID:2804

Network

MITRE ATT&CK Matrix ATT&CK v13

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Defense Evasion

Modify Registry

2
T1112

Virtualization/Sandbox Evasion

1
T1497

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Discovery

Query Registry

2
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
    Filesize

    68KB

    MD5

    29f65ba8e88c063813cc50a4ea544e93

    SHA1

    05a7040d5c127e68c25d81cc51271ffb8bef3568

    SHA256

    1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

    SHA512

    e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
    Filesize

    344B

    MD5

    9bbe879dc0835b1f32eafbc6b4ecb1e1

    SHA1

    08ba7bb83673dcbc87726d8468f84a5aa3b6aa08

    SHA256

    0f21502a8c588908e2d69689ee82962c976fd1b30d0dc82ab6dc2410f9801e19

    SHA512

    44a9022987d7ee7afdd7f41250d0ae34be043d0c951efff88e27e17ad78acdcbe6801741abe3d5ec15de3c9658ac33a8d82f66edecad287065c34938c49c341d

  • C:\Users\Admin\AppData\Local\Temp\Cab8104.tmp
    Filesize

    65KB

    MD5

    ac05d27423a85adc1622c714f2cb6184

    SHA1

    b0fe2b1abddb97837ea0195be70ab2ff14d43198

    SHA256

    c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

    SHA512

    6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

  • C:\Users\Admin\AppData\Local\Temp\Tar82B0.tmp
    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • memory/2804-4-0x000007FEFD020000-0x000007FEFD08C000-memory.dmp
    Filesize

    432KB

  • memory/2804-5-0x000007FEFD020000-0x000007FEFD08C000-memory.dmp
    Filesize

    432KB

  • memory/2804-6-0x0000000140000000-0x0000000140E05000-memory.dmp
    Filesize

    14.0MB

  • memory/2804-9-0x0000000140000000-0x0000000140E05000-memory.dmp
    Filesize

    14.0MB

  • memory/2804-7-0x0000000140000000-0x0000000140E05000-memory.dmp
    Filesize

    14.0MB

  • memory/2804-8-0x0000000140000000-0x0000000140E05000-memory.dmp
    Filesize

    14.0MB

  • memory/2804-2-0x000007FEFD020000-0x000007FEFD08C000-memory.dmp
    Filesize

    432KB

  • memory/2804-3-0x000007FEFD020000-0x000007FEFD08C000-memory.dmp
    Filesize

    432KB

  • memory/2804-0-0x0000000140000000-0x0000000140E05000-memory.dmp
    Filesize

    14.0MB

  • memory/2804-1-0x000007FEFD034000-0x000007FEFD035000-memory.dmp
    Filesize

    4KB

  • memory/2804-84-0x0000000140000000-0x0000000140E05000-memory.dmp
    Filesize

    14.0MB

  • memory/2804-85-0x000007FEFD034000-0x000007FEFD035000-memory.dmp
    Filesize

    4KB

  • memory/2804-86-0x000007FEFD020000-0x000007FEFD08C000-memory.dmp
    Filesize

    432KB