Analysis

  • max time kernel
    19s
  • max time network
    21s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-03-2024 16:54

General

  • Target

    VegaStealer_v2.exe

  • Size

    7.7MB

  • MD5

    9f4f298bcf1d208bd3ce3907cfb28480

  • SHA1

    05c1cfde951306f8c6e9d484d3d88698c4419c62

  • SHA256

    bf7057293d871cac087daab42daf22c1737a1df6adc7b7963989658f3b65f4cc

  • SHA512

    4c763c3b6d4884f77083db5ccada59bc57803b3226294eff2ec3db8f2121ac01ee240b0e822cb090f5320ce40df545b477e323efabdbca31722731adc4b46806

  • SSDEEP

    98304:Rgl47z3Aldea5a/OhtJeq+4NK+dG7M0mWZsE6+YhU+dbkh4yiMP0Q:H/wld79ht+j1M0mWZsE6+YASy10Q

Malware Config

Extracted

Family

blackguard

C2

https://api.telegram.org/bot6540906397:AAG08fPgT-V7I17vtz49STaZEuwqXqKshuM/sendMessage?chat_id=5445185021

Signatures

  • BlackGuard

    Infostealer first seen in Late 2021.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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\VegaStealer_v2.exe
    "C:\Users\Admin\AppData\Local\Temp\VegaStealer_v2.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2928
    • 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:320

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\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

    3f62213d184b639a0a62bcb1e65370a8

    SHA1

    bbf50b3c683550684cdb345d348e98fbe2fcafe0

    SHA256

    c692dfc29e70a17cabc19561e8e2662e1fe32fdba998a09fe1a8dc2b7e045b34

    SHA512

    0cd40d714e6a6ebd60cc0c8b0e339905a5f1198a474a531b1794fb562f27053f118718cc68b9652fef3411906f9d8ad22d0253af256fa1922133e9907298e803

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

    Filesize

    105B

    MD5

    2e9d094dda5cdc3ce6519f75943a4ff4

    SHA1

    5d989b4ac8b699781681fe75ed9ef98191a5096c

    SHA256

    c84c98bbf5e0ef9c8d0708b5d60c5bb656b7d6be5135d7f7a8d25557e08cf142

    SHA512

    d1f7eed00959e902bdb2125b91721460d3ff99f3bdfc1f2a343d4f58e8d4e5e5a06c0c6cdc0379211c94510f7c00d7a8b34fa7d0ca0c3d54cbbe878f1e9812b7

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

    Filesize

    312B

    MD5

    fde68fde9042d805b0b9cc9547729e1f

    SHA1

    a2293725891ad27025b16575bcd7f1d47a16db4a

    SHA256

    8d9b381139dd994659932b9e420e4d98c7be1335ca39d6d0de84cadf73e63e35

    SHA512

    b47ee6bd1ba8166d69a75a127859c76ef9971580d117a29a219c25a27131217f57c94f707fbbda51dba380bfb1618ef8b6b7d3c624201292c97856286402d0fe

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

    Filesize

    1KB

    MD5

    844bc892f534c5500d39d9140d377c04

    SHA1

    9feeb93ea3cb375bce8e05f2dd2e3eb5dc8e28cd

    SHA256

    8493694f8ae1fbe6ef606c43d1039008ffe53d14d5ecc83904bc73f7a11ca561

    SHA512

    39475536c257f68c45fd40f09559f64dec501438eb557de6f1dd1882a80935985ee598d7104405514364718795902882c9e88391a2972258a4db7540da446d69

  • memory/320-90-0x0000000006A60000-0x0000000006DB4000-memory.dmp

    Filesize

    3.3MB

  • memory/320-97-0x0000000006EC0000-0x0000000006EE1000-memory.dmp

    Filesize

    132KB

  • memory/320-85-0x0000000005EF0000-0x0000000005F12000-memory.dmp

    Filesize

    136KB

  • memory/320-83-0x0000000005C00000-0x0000000005C92000-memory.dmp

    Filesize

    584KB

  • memory/320-89-0x00000000069F0000-0x0000000006A58000-memory.dmp

    Filesize

    416KB

  • memory/320-39-0x0000000005F60000-0x0000000005FF2000-memory.dmp

    Filesize

    584KB

  • memory/320-91-0x00000000069A0000-0x00000000069EC000-memory.dmp

    Filesize

    304KB

  • memory/320-32-0x00000000055F0000-0x0000000005600000-memory.dmp

    Filesize

    64KB

  • memory/320-96-0x0000000006E80000-0x0000000006EBC000-memory.dmp

    Filesize

    240KB

  • memory/320-84-0x0000000005BB0000-0x0000000005C00000-memory.dmp

    Filesize

    320KB

  • memory/320-102-0x0000000007E50000-0x0000000008012000-memory.dmp

    Filesize

    1.8MB

  • memory/320-106-0x00000000085D0000-0x0000000008B74000-memory.dmp

    Filesize

    5.6MB

  • memory/320-31-0x0000000074770000-0x0000000074F20000-memory.dmp

    Filesize

    7.7MB

  • memory/320-30-0x0000000000C80000-0x0000000000CCA000-memory.dmp

    Filesize

    296KB

  • memory/320-194-0x00000000084B0000-0x0000000008516000-memory.dmp

    Filesize

    408KB

  • memory/320-195-0x0000000008520000-0x0000000008596000-memory.dmp

    Filesize

    472KB

  • memory/320-196-0x0000000007E20000-0x0000000007E3E000-memory.dmp

    Filesize

    120KB

  • memory/320-199-0x0000000074770000-0x0000000074F20000-memory.dmp

    Filesize

    7.7MB