Analysis

  • max time kernel
    151s
  • max time network
    163s
  • platform
    windows7_x64
  • resource
    win7-20220718-en
  • resource tags

    arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system
  • submitted
    10-08-2022 11:36

General

  • Target

    File.exe

  • Size

    44.8MB

  • MD5

    1198cbf8402c406a1f9116a8a78106ce

  • SHA1

    212cba28df200c395e263b413822e7cafc5251ff

  • SHA256

    b926f2d291437818aa3a766c431f7486e1f86a3cb7a1e82cb9c3fb1ee80befb7

  • SHA512

    e2ff31d8243ffcf3bee8fb9c71a90653b10b73d85ed7c53ac7cef3c368d4ebd63fbce34f5f0d2422e8f7c819342e77c686cf77a91080902c348c0680b24f5bc0

Malware Config

Extracted

Family

privateloader

C2

http://163.123.143.4/proxies.txt

http://107.182.129.251/server.txt

pastebin.com/raw/A7dSG1te

http://wfsdragon.ru/api/setStats.php

163.123.143.12

http://91.241.19.125/pub.php?pub=one

http://sarfoods.com/index.php

Attributes
  • payload_url

    https://cdn.discordapp.com/attachments/1004293542186848319/1006848237547831356/NiceProcessX64.bmp

    https://cdn.discordapp.com/attachments/1004293542186848319/1006848228697841664/NiceProcessX32.bmp

    https://cdn.discordapp.com/attachments/910842184708792331/931507465563045909/dingo_20220114120058.bmp

    https://c.xyzgamec.com/userdown/2202/random.exe

    http://193.56.146.76/Proxytest.exe

    http://www.yzsyjyjh.com/askhelp23/askinstall23.exe

    http://privacy-tools-for-you-780.com/downloads/toolspab3.exe

    http://luminati-china.xyz/aman/casper2.exe

    https://innovicservice.net/assets/vendor/counterup/RobCleanerInstlr95038215.exe

    http://tg8.cllgxx.com/hp8/g1/yrpp1047.exe

    https://cdn.discordapp.com/attachments/910842184708792331/930849718240698368/Roll.bmp

    https://cdn.discordapp.com/attachments/910842184708792331/930850766787330068/real1201.bmp

    https://cdn.discordapp.com/attachments/910842184708792331/930882959131693096/Installer.bmp

    http://185.215.113.208/ferrari.exe

    https://cdn.discordapp.com/attachments/910842184708792331/931233371110141962/LingeringsAntiphon.bmp

    https://cdn.discordapp.com/attachments/910842184708792331/931285223709225071/russ.bmp

    https://cdn.discordapp.com/attachments/910842184708792331/932720393201016842/filinnn.bmp

    https://cdn.discordapp.com/attachments/910842184708792331/933436611427979305/build20k.bmp

    https://c.xyzgamec.com/userdown/2202/random.exe

    http://mnbuiy.pw/adsli/note8876.exe

    http://www.yzsyjyjh.com/askhelp23/askinstall23.exe

    http://luminati-china.xyz/aman/casper2.exe

    https://suprimax.vet.br/css/fonts/OneCleanerInst942914.exe

    http://tg8.cllgxx.com/hp8/g1/ssaa1047.exe

    https://www.deezloader.app/files/Deezloader_Remix_Installer_64_bit_4.3.0_Setup.exe

    https://www.deezloader.app/files/Deezloader_Remix_Installer_32_bit_4.3.0_Setup.exe

    https://cdn.discordapp.com/attachments/910281601559167006/911516400005296219/anyname.exe

    https://cdn.discordapp.com/attachments/910281601559167006/911516894660530226/PBsecond.exe

    https://cdn.discordapp.com/attachments/910842184708792331/914047763304550410/Xpadder.bmp

Signatures

  • Modifies Windows Defender Real-time Protection settings 3 TTPs 7 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
  • Executes dropped EXE 1 IoCs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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.

  • Checks whether UAC is enabled 1 TTPs 1 IoCs
  • Looks up external IP address via web service 2 IoCs

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

  • Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\File.exe
    "C:\Users\Admin\AppData\Local\Temp\File.exe"
    1⤵
    • Modifies Windows Defender Real-time Protection settings
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Checks computer location settings
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1704
    • C:\Users\Admin\Pictures\Minor Policy\CVHAUmRyVWc3O3qykDjTFvgD.exe
      "C:\Users\Admin\Pictures\Minor Policy\CVHAUmRyVWc3O3qykDjTFvgD.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      PID:820
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1704 -s 1432
      2⤵
      • Program crash
      PID:424

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Modify Existing Service

1
T1031

Defense Evasion

Modify Registry

1
T1112

Disabling Security Tools

1
T1089

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Collection

Data from Local System

1
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\Pictures\Minor Policy\CVHAUmRyVWc3O3qykDjTFvgD.exe
    Filesize

    318KB

    MD5

    3f22bd82ee1b38f439e6354c60126d6d

    SHA1

    63b57d818f86ea64ebc8566faeb0c977839defde

    SHA256

    265c2ddc8a21e6fa8dfaa38ef0e77df8a2e98273a1abfb575aef93c0cc8ee96a

    SHA512

    b73e8e17e5e99d0e9edfb690ece8b0c15befb4d48b1c4f2fe77c5e3daf01df35858c06e1403a8636f86363708b80123d12122cb821a86b575b184227c760988f

  • \Users\Admin\Pictures\Minor Policy\CVHAUmRyVWc3O3qykDjTFvgD.exe
    Filesize

    318KB

    MD5

    3f22bd82ee1b38f439e6354c60126d6d

    SHA1

    63b57d818f86ea64ebc8566faeb0c977839defde

    SHA256

    265c2ddc8a21e6fa8dfaa38ef0e77df8a2e98273a1abfb575aef93c0cc8ee96a

    SHA512

    b73e8e17e5e99d0e9edfb690ece8b0c15befb4d48b1c4f2fe77c5e3daf01df35858c06e1403a8636f86363708b80123d12122cb821a86b575b184227c760988f

  • memory/424-68-0x0000000000000000-mapping.dmp
  • memory/820-66-0x0000000000000000-mapping.dmp
  • memory/1704-58-0x0000000000400000-0x0000000000D2C000-memory.dmp
    Filesize

    9.2MB

  • memory/1704-59-0x0000000076EB0000-0x0000000077030000-memory.dmp
    Filesize

    1.5MB

  • memory/1704-60-0x0000000000400000-0x0000000000D2C000-memory.dmp
    Filesize

    9.2MB

  • memory/1704-61-0x0000000000400000-0x0000000000D2C000-memory.dmp
    Filesize

    9.2MB

  • memory/1704-62-0x0000000076EB0000-0x0000000077030000-memory.dmp
    Filesize

    1.5MB

  • memory/1704-63-0x0000000000400000-0x0000000000D2C000-memory.dmp
    Filesize

    9.2MB

  • memory/1704-64-0x00000000045F0000-0x0000000004844000-memory.dmp
    Filesize

    2.3MB

  • memory/1704-54-0x0000000000400000-0x0000000000D2C000-memory.dmp
    Filesize

    9.2MB

  • memory/1704-57-0x0000000000400000-0x0000000000D2C000-memory.dmp
    Filesize

    9.2MB

  • memory/1704-56-0x0000000075B61000-0x0000000075B63000-memory.dmp
    Filesize

    8KB

  • memory/1704-55-0x0000000000400000-0x0000000000D2C000-memory.dmp
    Filesize

    9.2MB

  • memory/1704-69-0x00000000045F0000-0x0000000004844000-memory.dmp
    Filesize

    2.3MB