Analysis

  • max time kernel
    60s
  • max time network
    53s
  • platform
    windows7_x64
  • resource
    win7-20220812-es
  • resource tags

    arch:x64arch:x86image:win7-20220812-eslocale:es-esos:windows7-x64systemwindows
  • submitted
    17-08-2022 00:12

General

  • Target

    c6bdc5a590a5c53b534c9dd5d345cfe4b311fca31bf4ea86a48e3e88042e31a4.exe

  • Size

    351KB

  • MD5

    04f9e4977cb7f90334d5bf0ccb6c80ce

  • SHA1

    e1328a2fc2d2d50c33e74ab8e2048dc2afaa0e2a

  • SHA256

    c6bdc5a590a5c53b534c9dd5d345cfe4b311fca31bf4ea86a48e3e88042e31a4

  • SHA512

    259644c17b4a4e93e2ca743edfd28dc735a07d2c5f4c17e174018b9126c8a6300751b2fb9750f59d0d84d144f09948db6582f70aeae7ff1f8712fc91d178d299

Malware Config

Extracted

Family

privateloader

C2

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.

  • Executes dropped EXE 1 IoCs
  • 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.

  • Looks up external IP address via web service 2 IoCs

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

  • 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 50 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c6bdc5a590a5c53b534c9dd5d345cfe4b311fca31bf4ea86a48e3e88042e31a4.exe
    "C:\Users\Admin\AppData\Local\Temp\c6bdc5a590a5c53b534c9dd5d345cfe4b311fca31bf4ea86a48e3e88042e31a4.exe"
    1⤵
    • Modifies Windows Defender Real-time Protection settings
    • Checks computer location settings
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1824
    • C:\Users\Admin\Pictures\Minor Policy\t1kdOSt1FNK93VYIVQGx60d8.exe
      "C:\Users\Admin\Pictures\Minor Policy\t1kdOSt1FNK93VYIVQGx60d8.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      PID:480
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1824 -s 1420
      2⤵
      • Program crash
      PID:1532

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\Pictures\Minor Policy\t1kdOSt1FNK93VYIVQGx60d8.exe

    Filesize

    318KB

    MD5

    3f22bd82ee1b38f439e6354c60126d6d

    SHA1

    63b57d818f86ea64ebc8566faeb0c977839defde

    SHA256

    265c2ddc8a21e6fa8dfaa38ef0e77df8a2e98273a1abfb575aef93c0cc8ee96a

    SHA512

    b73e8e17e5e99d0e9edfb690ece8b0c15befb4d48b1c4f2fe77c5e3daf01df35858c06e1403a8636f86363708b80123d12122cb821a86b575b184227c760988f

  • \Users\Admin\Pictures\Minor Policy\t1kdOSt1FNK93VYIVQGx60d8.exe

    Filesize

    318KB

    MD5

    3f22bd82ee1b38f439e6354c60126d6d

    SHA1

    63b57d818f86ea64ebc8566faeb0c977839defde

    SHA256

    265c2ddc8a21e6fa8dfaa38ef0e77df8a2e98273a1abfb575aef93c0cc8ee96a

    SHA512

    b73e8e17e5e99d0e9edfb690ece8b0c15befb4d48b1c4f2fe77c5e3daf01df35858c06e1403a8636f86363708b80123d12122cb821a86b575b184227c760988f

  • memory/480-57-0x0000000000000000-mapping.dmp

  • memory/1532-59-0x0000000000000000-mapping.dmp

  • memory/1824-54-0x0000000075341000-0x0000000075343000-memory.dmp

    Filesize

    8KB

  • memory/1824-55-0x0000000003C10000-0x0000000003E64000-memory.dmp

    Filesize

    2.3MB

  • memory/1824-60-0x0000000003C10000-0x0000000003E64000-memory.dmp

    Filesize

    2.3MB