Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220721-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-07-2022 05:14

General

  • Target

    tmp.exe

  • Size

    107KB

  • MD5

    f8a7a4c5d75bfda7dbadf09e3a39e089

  • SHA1

    4527a2ff764c084e55c190d98824ef664a6f1892

  • SHA256

    6bb0ee5036962c86db2292f5ccd21d63a22cbb17a6937c0d89b53ea97b77e8e6

  • SHA512

    54887714264f38063eb6166b3d77ba949ddf2b70d169f5d24fdddadb4cee8572d25031b0bcb0ecaa87deccce7b4449d41e7017debf2db7933598c9f18bd735e1

Malware Config

Extracted

Family

redline

Botnet

cheat

C2

nicehash.at:1338

Attributes
  • auth_value

    8095fccd90c93353aaa1fc77bca0ff3f

Extracted

Family

quasar

Version

1.4.0

Botnet

Office04

C2

nicehash.at:4000

Mutex

dc4bad02-e33b-461d-8bb2-c976586d2ac0

Attributes
  • encryption_key

    51DF8E701C6F05B28BEC40BEB21419EF5FEC8A38

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    300

  • startup_key

    JavaClient Startup

  • subdirectory

    JavaTools

Extracted

Family

bitrat

Version

1.38

C2

nicehash.at:6000

Attributes
  • communication_password

    74963e9852aafd36ba521fa22b39e244

  • install_dir

    localappdata

  • install_file

    Java.exe

  • tor_process

    tor

Signatures

  • BitRAT

    BitRAT is a remote access tool written in C++ and uses leaked source code from other families.

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar payload 5 IoCs
  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine payload 1 IoCs
  • Downloads MZ/PE file
  • Executes dropped EXE 3 IoCs
  • UPX packed file 4 IoCs

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

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmp.exe
    "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
    1⤵
    • Checks computer location settings
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:844
    • C:\Users\Admin\AppData\Local\Temp\qsr.exe
      "C:\Users\Admin\AppData\Local\Temp\qsr.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2148
      • C:\Windows\SYSTEM32\schtasks.exe
        "schtasks" /create /tn "JavaClient Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\qsr.exe" /rl HIGHEST /f
        3⤵
        • Creates scheduled task(s)
        PID:4304
      • C:\Users\Admin\AppData\Roaming\JavaTools\Client.exe
        "C:\Users\Admin\AppData\Roaming\JavaTools\Client.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:3440
        • C:\Windows\SYSTEM32\schtasks.exe
          "schtasks" /create /tn "JavaClient Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\JavaTools\Client.exe" /rl HIGHEST /f
          4⤵
          • Creates scheduled task(s)
          PID:640
    • C:\Users\Admin\AppData\Local\Temp\bit.exe
      "C:\Users\Admin\AppData\Local\Temp\bit.exe"
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4384

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\bit.exe
    Filesize

    1.4MB

    MD5

    c8fa9d8cf4ff8780466a34d8d5d43594

    SHA1

    1902971da5e39dccc308207ab77a7e1c987c31cd

    SHA256

    772f6645c35033bb27c15d96b3c9fc58bc7feca6b06e5a0479157b75987e2214

    SHA512

    9a87c3fc220fdc6f959fb9a5bfe6b526a003a4d1fd473581ba3d044bdf4cb3fffe531a5b56b87ea243a787da80a10372ff932457f069dd174be9654681f44c03

  • C:\Users\Admin\AppData\Local\Temp\bit.exe
    Filesize

    1.4MB

    MD5

    c8fa9d8cf4ff8780466a34d8d5d43594

    SHA1

    1902971da5e39dccc308207ab77a7e1c987c31cd

    SHA256

    772f6645c35033bb27c15d96b3c9fc58bc7feca6b06e5a0479157b75987e2214

    SHA512

    9a87c3fc220fdc6f959fb9a5bfe6b526a003a4d1fd473581ba3d044bdf4cb3fffe531a5b56b87ea243a787da80a10372ff932457f069dd174be9654681f44c03

  • C:\Users\Admin\AppData\Local\Temp\qsr.exe
    Filesize

    502KB

    MD5

    63ff62dafb5b4bed02a24c9738bbd899

    SHA1

    b255bbb04d6166aa173ca5b447ef53ab46f53cb2

    SHA256

    754a413b433a1f829bd215bfcd26d3a1e0cbdb09a7c3b8586e3d9d19bd4d7ed0

    SHA512

    77e1cbb6d897497590f778e2efd66f895c01df35f1348d084aee513225760c702ff1d3ae45a631ec3868a19a8bb3aa5ef93c2e234002c7b7f9175891ce1992fc

  • C:\Users\Admin\AppData\Local\Temp\qsr.exe
    Filesize

    502KB

    MD5

    63ff62dafb5b4bed02a24c9738bbd899

    SHA1

    b255bbb04d6166aa173ca5b447ef53ab46f53cb2

    SHA256

    754a413b433a1f829bd215bfcd26d3a1e0cbdb09a7c3b8586e3d9d19bd4d7ed0

    SHA512

    77e1cbb6d897497590f778e2efd66f895c01df35f1348d084aee513225760c702ff1d3ae45a631ec3868a19a8bb3aa5ef93c2e234002c7b7f9175891ce1992fc

  • C:\Users\Admin\AppData\Roaming\JavaTools\Client.exe
    Filesize

    502KB

    MD5

    63ff62dafb5b4bed02a24c9738bbd899

    SHA1

    b255bbb04d6166aa173ca5b447ef53ab46f53cb2

    SHA256

    754a413b433a1f829bd215bfcd26d3a1e0cbdb09a7c3b8586e3d9d19bd4d7ed0

    SHA512

    77e1cbb6d897497590f778e2efd66f895c01df35f1348d084aee513225760c702ff1d3ae45a631ec3868a19a8bb3aa5ef93c2e234002c7b7f9175891ce1992fc

  • C:\Users\Admin\AppData\Roaming\JavaTools\Client.exe
    Filesize

    502KB

    MD5

    63ff62dafb5b4bed02a24c9738bbd899

    SHA1

    b255bbb04d6166aa173ca5b447ef53ab46f53cb2

    SHA256

    754a413b433a1f829bd215bfcd26d3a1e0cbdb09a7c3b8586e3d9d19bd4d7ed0

    SHA512

    77e1cbb6d897497590f778e2efd66f895c01df35f1348d084aee513225760c702ff1d3ae45a631ec3868a19a8bb3aa5ef93c2e234002c7b7f9175891ce1992fc

  • memory/640-158-0x0000000000000000-mapping.dmp
  • memory/844-135-0x0000000005450000-0x00000000054B6000-memory.dmp
    Filesize

    408KB

  • memory/844-138-0x00000000060A0000-0x0000000006116000-memory.dmp
    Filesize

    472KB

  • memory/844-139-0x00000000063F0000-0x000000000640E000-memory.dmp
    Filesize

    120KB

  • memory/844-140-0x0000000006AC0000-0x0000000006B10000-memory.dmp
    Filesize

    320KB

  • memory/844-141-0x0000000006DE0000-0x0000000006FA2000-memory.dmp
    Filesize

    1.8MB

  • memory/844-142-0x00000000074E0000-0x0000000007A0C000-memory.dmp
    Filesize

    5.2MB

  • memory/844-137-0x0000000006000000-0x0000000006092000-memory.dmp
    Filesize

    584KB

  • memory/844-136-0x0000000006510000-0x0000000006AB4000-memory.dmp
    Filesize

    5.6MB

  • memory/844-130-0x0000000000700000-0x0000000000720000-memory.dmp
    Filesize

    128KB

  • memory/844-134-0x00000000050F0000-0x000000000512C000-memory.dmp
    Filesize

    240KB

  • memory/844-133-0x00000000051C0000-0x00000000052CA000-memory.dmp
    Filesize

    1.0MB

  • memory/844-132-0x0000000005090000-0x00000000050A2000-memory.dmp
    Filesize

    72KB

  • memory/844-131-0x0000000005640000-0x0000000005C58000-memory.dmp
    Filesize

    6.1MB

  • memory/2148-150-0x00007FFBFA7F0000-0x00007FFBFB2B1000-memory.dmp
    Filesize

    10.8MB

  • memory/2148-146-0x0000000000450000-0x00000000004D4000-memory.dmp
    Filesize

    528KB

  • memory/2148-143-0x0000000000000000-mapping.dmp
  • memory/2148-156-0x00007FFBFA7F0000-0x00007FFBFB2B1000-memory.dmp
    Filesize

    10.8MB

  • memory/3440-161-0x000000001AFD0000-0x000000001B020000-memory.dmp
    Filesize

    320KB

  • memory/3440-162-0x000000001C3C0000-0x000000001C472000-memory.dmp
    Filesize

    712KB

  • memory/3440-164-0x00007FFBFA7F0000-0x00007FFBFB2B1000-memory.dmp
    Filesize

    10.8MB

  • memory/3440-157-0x00007FFBFA7F0000-0x00007FFBFB2B1000-memory.dmp
    Filesize

    10.8MB

  • memory/3440-153-0x0000000000000000-mapping.dmp
  • memory/4304-152-0x0000000000000000-mapping.dmp
  • memory/4384-163-0x0000000000400000-0x00000000007E4000-memory.dmp
    Filesize

    3.9MB

  • memory/4384-151-0x0000000000400000-0x00000000007E4000-memory.dmp
    Filesize

    3.9MB

  • memory/4384-160-0x0000000074030000-0x0000000074069000-memory.dmp
    Filesize

    228KB

  • memory/4384-159-0x0000000074350000-0x0000000074389000-memory.dmp
    Filesize

    228KB

  • memory/4384-147-0x0000000000000000-mapping.dmp
  • memory/4384-165-0x0000000074030000-0x0000000074069000-memory.dmp
    Filesize

    228KB

  • memory/4384-166-0x0000000074030000-0x0000000074069000-memory.dmp
    Filesize

    228KB

  • memory/4384-167-0x0000000074350000-0x0000000074389000-memory.dmp
    Filesize

    228KB

  • memory/4384-168-0x0000000074030000-0x0000000074069000-memory.dmp
    Filesize

    228KB

  • memory/4384-169-0x0000000074030000-0x0000000074069000-memory.dmp
    Filesize

    228KB

  • memory/4384-170-0x0000000074030000-0x0000000074069000-memory.dmp
    Filesize

    228KB