General

  • Target
    8bee452d2535953e7ad9d18fffacbef60560fc05647c735ef55393c0869b673d.zip
  • Size 8.7MB
  • Sample240620-byeeks1enh
  • SHA256 8bee452d2535953e7ad9d18fffacbef60560fc05647c735ef55393c0869b673d
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • stealc

rc4.plain

Extracted

Family
  • amadey

Version
  • 4.30

Botnet
  • ffb1b9

C2
  • http://proresupdate.com

Attributes
  • install_dir

    4bbb72a446

  • install_file

    Hkbsse.exe

  • strings_key

    1ebbd218121948a356341fff55521237

  • url_paths

    /h9fmdW5/index.php

rc4.plain

Targets

    • Target
      files/Setup.exe
    • Size 202KB
    • SHA256 c26db97858c427d92e393396f7cb7f9e7ed8f9ce616adcc123d0ec6b055b99c9
    • MD5 SHA1 SHA512 SSDEEP
    • Amadey

      Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • Detect binaries embedding considerable number of MFA browser extension IDs.

    • Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.

    • Detects Windows executables referencing non-Windows User-Agents

    • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

    • Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion

    • Detects executables containing potential Windows Defender anti-emulation checks

    • Detects executables manipulated with Fody

    • UPX dump on OEP (original entry point)

    • XMRig Miner payload

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Suspicious use of SetThreadContext

    • Target
      files/WCLDll.dll
    • Size 590KB
    • SHA256 8acf6eea851ccd43a33eee9840794b9944eed61e5be0a7c403b79d3baa48940c
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      files/msvcp140.dll
    • Size 427KB
    • SHA256 fdb3d86c512adff90967cb860d02a4682850ab96727f0376e4d4836504c50e47
    • MD5 SHA1 SHA512 SSDEEP
    Score
    3/10
    • Target
      files/ptMgr.dll
    • Size 2.5MB
    • SHA256 7ada08db595f00c1bafbabe168a964466fbb691caf4ac70fb63e8c4b2b2a9f85
    • MD5 SHA1 SHA512 SSDEEP
    Score
    3/10
    • Target
      files/ptusredt.dll
    • Size 165KB
    • SHA256 88378c228d7827974fe6ec827837af7571290e129082e7070d4bff7a42f4ba67
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      files/vcruntime140.dll
    • Size 81KB
    • SHA256 346f72c9a7584c2ab6ce65cd38a616c77ebddc0bbab2274c4e89dd5e62237517
    • MD5 SHA1 SHA512 SSDEEP
    Score
    3/10
    • Target
      files/vcruntime140_app.dll
    • Size 21KB
    • SHA256 813a447192c4fa7d25d0716b769399546f8bf6b31269dd8ad47f9812008d79e6
    • MD5 SHA1 SHA512 SSDEEP
    Score
    3/10
    • Target
      files/wbxtrace.dll
    • Size 103KB
    • SHA256 9e2b2d67d0e70651a64a3febee9f2698d8a939633587fe973a30758368cffc04
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      files/x86/HDHelper_[0MB]_[1].exe
    • Size 566KB
    • SHA256 72ece91f65a461c5023695bf5f31b5b6b5bd629dba8407524e8144f6d1e160e8
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      files/x86/NvStereoUtilityOGL_[1MB]_[1].exe
    • Size 1.1MB
    • SHA256 c2c71318a17f7f767e5d203d22b48f27eecae46a4f37082d7b413c51da6183b3
    • MD5 SHA1 SHA512 SSDEEP
    Score
    3/10
    • Target
      files/x86/VSLauncher_[0MB]_[1].exe
    • Size 281KB
    • SHA256 87048cff2227d2901314760618d23917cfbc5cc15fc22dc355e803c5ee5fb211
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      files/x86/api-ms-win-core-processthreads-l1-1-1.dll
    • Size 17KB
    • SHA256 e5ea2c21fb225090f7d0db6c6990d67b1558d8e834e86513bc8ba7a43c4e7b36
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      files/x86/api-ms-win-core-profile-l1-1-0.dll
    • Size 16KB
    • SHA256 d00a0edace14715bf79dbd17b715d8a74a2300f0adb1f3fc137edfb7074c9b0a
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      files/x86/api-ms-win-core-rtlsupport-l1-1-0.dll
    • Size 17KB
    • SHA256 d11093fdc1d5c9213b9b2886ce91db3ded17ef8dae1615a8c7ffbc55b8e3f79b
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      files/x86/api-ms-win-core-string-l1-1-0.dll
    • Size 17KB
    • SHA256 3807db7acf1b40c797e4d4c14a12c3806346ae56b25e205e600be3e635c18d4f
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      files/x86/api-ms-win-core-synch-l1-1-0.dll
    • Size 19KB
    • SHA256 8bb38a7a59fbaa792b3d5f34f94580429588c8c592929cbd307afd5579762abc
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      files/x86/api-ms-win-core-synch-l1-2-0.dll
    • Size 17KB
    • SHA256 9ac63682e03d55a5d18405d336634af080dd0003b565d12a39d6d71aaa989f48
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      files/x86/api-ms-win-core-sysinfo-l1-1-0.dll
    • Size 18KB
    • SHA256 1fe918979f1653d63bb713d4716910d192cd09f50017a6ecb4ce026ed6285df9
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      files/x86/api-ms-win-core-timezone-l1-1-0.dll
    • Size 17KB
    • SHA256 a108a8f20ded00e742a1f818ef00eb425990b6b24a2bcd060dea4d7f06d3f165
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      files/x86/api-ms-win-core-util-l1-1-0.dll
    • Size 17KB
    • SHA256 68bd9c086d210eb14e78f00988ba88ceaf9056c8f10746ab024990f8512a2296
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10
    • Target
      files/x86/api-ms-win-crt-conio-l1-1-0.dll
    • Size 18KB
    • SHA256 4aeeae0ac9f6c1b0b8835067ea3b7fc429f353565f18de7858f4ea5d6f72072e
    • MD5 SHA1 SHA512 SSDEEP
    Score
    1/10

MITRE ATT&CK Enterprise v15

Tasks

static1

Score
1/10

behavioral1

stealcvidarstealer
Score
10/10

behavioral2

amadeystealcvidarxmrigffb1b9discoveryminerspywarestealertrojanupx
Score
10/10

behavioral3

Score
1/10

behavioral4

Score
1/10

behavioral5

Score
3/10

behavioral6

Score
3/10

behavioral7

Score
1/10

behavioral8

Score
3/10

behavioral9

Score
1/10

behavioral10

Score
1/10

behavioral11

Score
3/10

behavioral12

Score
3/10

behavioral13

Score
1/10

behavioral14

Score
3/10

behavioral15

Score
1/10

behavioral16

Score
1/10

behavioral17

Score
1/10

behavioral18

Score
1/10

behavioral19

Score
1/10

behavioral20

Score
3/10

behavioral21

Score
1/10

behavioral22

Score
1/10

behavioral23

Score
1/10

behavioral24

Score
1/10

behavioral25

Score
1/10

behavioral26

Score
1/10

behavioral27

Score
1/10

behavioral28

Score
1/10

behavioral29

Score
1/10

behavioral30

Score
1/10

behavioral31

Score
1/10

behavioral32

Score
1/10