Analysis

  • max time kernel
    1516s
  • max time network
    1507s
  • platform
    windows11-21h2_x64
  • resource
    win11-20231128-en
  • resource tags

    arch:x64arch:x86image:win11-20231128-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    13-12-2023 18:16

General

  • Target

    expensive 3.0.exe

  • Size

    7.7MB

  • MD5

    5de68ee2fd224e921d0579eeb6b34ba1

  • SHA1

    e8d72b224941659b615f1d9c4641a91d3c1feccc

  • SHA256

    dd948a89e3fd50fe35c481187ac77683ebab5661985d743a6c77681239a96a9d

  • SHA512

    eed070c640508d740ef927ad50b7daac7a435ff0b6c734136021c9f0972b330d6d456288bd7419ac9beced203e39d0dea3bd0c10002856a268e7bc68919b61c2

  • SSDEEP

    98304:fCru1T5fc7Ec0Nlb184vvhXd/GyR2tpw7aTIIXAKPq5XtR1kT3oh2YlybGZenLT:fCrkN2V0Nj8EXIT+7LIX5qJh2Ylysi3

Malware Config

Extracted

Family

blackguard

C2

https://api.telegram.org/bot5808551742:AAEg1HZDZFvbSau_b6rSW4mu5bhz5EJUj0Q/sendMessage?chat_id=5035053251

Signatures

  • BlackGuard

    Infostealer first seen in Late 2021.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 5 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Looks up external IP address via web service 3 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).

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\expensive 3.0.exe
    "C:\Users\Admin\AppData\Local\Temp\expensive 3.0.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4908
    • C:\Users\Admin\AppData\Local\Temp\v2.exe
      "C:\Users\Admin\AppData\Local\Temp\v2.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2104

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\Newtonsoft.Json.dll

    Filesize

    571KB

    MD5

    169b6d383b7c650ab3ae2129397a6cf3

    SHA1

    fcaef7defb04301fd55fb1421bb15ef96d7040d6

    SHA256

    b896083feb2bdedc1568b62805dbd354c55e57f2d2469a52aec6c98f4ec2dedf

    SHA512

    7a7a7bdb508b8bf177249251c83b65a2ef4a5d8b29397cab130cb8444b23888678673a9a2e4b1c74cc095b358f923b9e7e5a91bfa8c240412d95765851f1dd87

  • C:\Users\Admin\AppData\Local\Temp\Newtonsoft.Json.dll

    Filesize

    192KB

    MD5

    63d5d797573dc5e4b4490ee1e98f3c29

    SHA1

    803245a86b956b597a2ad88f5c3160dfab026c50

    SHA256

    a80394850b0e73398d2bc281da27b16b30058ffcc0c0ce074df7096a401bfa4c

    SHA512

    ca9b3539b5153aa9810b129b7a6d05389cd1cd09e9912573552e81057877380a34f79c255c3801c483132c2fba4cfc959c1af3ce9db09c955a99d1b50c565808

  • C:\Users\Admin\AppData\Local\Temp\Newtonsoft.Json.dll

    Filesize

    64KB

    MD5

    8f9a318cdf28667e709cd593e5ed65e9

    SHA1

    844f7c5e3ebce373eee0bdc201b340ceb12d2eba

    SHA256

    425bfda755adaf38c0e6980e65158fbe2ff775de6e63e72b6af5178d64beb3a0

    SHA512

    cfe970e45815d4236152f256565f07ae09e830ac68fe2894a64eac59937c1327593246df1308bc9f7d4e588a2e1309745384de620a962378f4965ce3cf653a0f

  • C:\Users\Admin\AppData\Local\Temp\SQLite.Interop.dll

    Filesize

    1.3MB

    MD5

    0a1e95b0b1535203a1b8479dff2c03ff

    SHA1

    20c4b4406e8a3b1b35ca739ed59aa07ba867043d

    SHA256

    788d748b4d35dfd091626529457d91e9ebc8225746211086b14fb4a25785a51e

    SHA512

    854abcca8d807a98a9ad0ca5d2e55716c3ce26fae7ee4642796baf415c3cfad522b658963eafe504ecaed6c2ecdcdf332c9b01e43dfa342fcc5ca0fbedfe600e

  • C:\Users\Admin\AppData\Local\Temp\System.Data.SQLite.dll

    Filesize

    410KB

    MD5

    056d3fcaf3b1d32ff25f513621e2a372

    SHA1

    851740bca46bab71d0b1d47e47f3eb8358cbee03

    SHA256

    66b64362664030bff1596cda2ec5bd5df48cc7c8313c32f771db4aa30a3f86f9

    SHA512

    ce47c581538f48a46d70279a62c702195beacbfafb48a5a862b3922625fe56f6887d1679c6d9366f946d3d2124cb31c2a3eacbbd14d601ea56e66575cdf46180

  • C:\Users\Admin\AppData\Local\Temp\v2.exe

    Filesize

    271KB

    MD5

    37a4d684c102f1d383e1aad3900db414

    SHA1

    8f6b414a183cb702fb03ac5269ace9f38e2ecd5f

    SHA256

    dde6c36477dc733bd67850ebc75d6437e6ada5b8b9b239b930bad338e9f3e363

    SHA512

    a5e8d799d9b726cd03f5d7ac77d8727f4fb753a070f3799c8a9570edd3d8a01074f115fac5e9cd1ea412d3d9e9b7c240bfdddda2595cb1ec5f943d97f1562641

  • C:\Users\Admin\AppData\Roaming\DDJPFywTFuBZMUXPROJA.Admin\Browsers\Firefox\Bookmarks.txt

    Filesize

    105B

    MD5

    2e9d094dda5cdc3ce6519f75943a4ff4

    SHA1

    5d989b4ac8b699781681fe75ed9ef98191a5096c

    SHA256

    c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

    SHA512

    d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

  • C:\Users\Admin\AppData\Roaming\DDJPFywTFuBZMUXPROJA.Admin\Process.txt

    Filesize

    605B

    MD5

    8316965ee5103b2575a75af221234121

    SHA1

    761656ad6618ad02924111d03fcb78953ecee439

    SHA256

    e3f7fbd249f636762965092dd6709a511e613e08b9ec9c00e4d42b8dfd69c49a

    SHA512

    dd35ecbc11a5d0c0c3d058ad1ea9e096d432d8baa692f59852351d16d9fb53c161b9baf2b2e677eba03386411e2243a35e7556784e369485f55b4465ca71af38

  • C:\Users\Admin\AppData\Roaming\DDJPFywTFuBZMUXPROJA.Admin\Process.txt

    Filesize

    859B

    MD5

    aa45a1df811b03b6c290aa991e397282

    SHA1

    6db0127804fccbc4e6dab80dc1209e3b124894b2

    SHA256

    1a9498f9389f4d9cc72fb9eb39d7514d69709b642fcbf8f4379cd294e01c0023

    SHA512

    5ede9a2b7128ee1fa6da9ea1b6f4afe66c79203d57252a88e1616711eba30c17cfd81869ef00637e663df5e795766f74ed004bcbca335e74bdd78982e0c3de87

  • C:\Users\Admin\AppData\Roaming\DDJPFywTFuBZMUXPROJA.Admin\Process.txt

    Filesize

    1KB

    MD5

    375d330558ad0387ae28610487b340f1

    SHA1

    66e431ed73867bc676dd3395ccfb148b1237023e

    SHA256

    36089f752aaea4ca5ace3b8ee4b528c6925b85b58824b9df4eb05937cd725927

    SHA512

    386ecd1b08345f55451ce72ded4c04df9fd59f4958ee0c1cf495c70d3271257d9f21f501a40d13477e145b3a4cf3f1bd1bdec4eaee47aaacef0547570411cf08

  • memory/2104-56-0x00000000068F0000-0x0000000006982000-memory.dmp

    Filesize

    584KB

  • memory/2104-103-0x0000000007F90000-0x0000000008152000-memory.dmp

    Filesize

    1.8MB

  • memory/2104-78-0x0000000005990000-0x00000000059E0000-memory.dmp

    Filesize

    320KB

  • memory/2104-90-0x0000000006990000-0x00000000069F8000-memory.dmp

    Filesize

    416KB

  • memory/2104-91-0x0000000006A00000-0x0000000006D57000-memory.dmp

    Filesize

    3.3MB

  • memory/2104-92-0x0000000006890000-0x00000000068DC000-memory.dmp

    Filesize

    304KB

  • memory/2104-44-0x00000000063B0000-0x0000000006442000-memory.dmp

    Filesize

    584KB

  • memory/2104-97-0x0000000007040000-0x000000000707C000-memory.dmp

    Filesize

    240KB

  • memory/2104-98-0x0000000007000000-0x0000000007021000-memory.dmp

    Filesize

    132KB

  • memory/2104-86-0x0000000005D50000-0x0000000005D72000-memory.dmp

    Filesize

    136KB

  • memory/2104-107-0x0000000008710000-0x0000000008CB6000-memory.dmp

    Filesize

    5.6MB

  • memory/2104-32-0x0000000005880000-0x0000000005890000-memory.dmp

    Filesize

    64KB

  • memory/2104-31-0x00000000743C0000-0x0000000074B71000-memory.dmp

    Filesize

    7.7MB

  • memory/2104-30-0x0000000000B90000-0x0000000000BDA000-memory.dmp

    Filesize

    296KB

  • memory/2104-190-0x0000000007DC0000-0x0000000007E26000-memory.dmp

    Filesize

    408KB

  • memory/2104-191-0x0000000007EB0000-0x0000000007F26000-memory.dmp

    Filesize

    472KB

  • memory/2104-192-0x0000000007E60000-0x0000000007E7E000-memory.dmp

    Filesize

    120KB

  • memory/2104-195-0x00000000743C0000-0x0000000074B71000-memory.dmp

    Filesize

    7.7MB