Analysis

  • max time kernel
    121s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    05/04/2024, 14:35

General

  • Target

    xtPT79JKvvlE.exe

  • Size

    47KB

  • MD5

    6657934f52a0686aefcfac430c49eb6c

  • SHA1

    e803dc674a183866df2ea7c732bd6ce288e4d273

  • SHA256

    a89667a64a05760547dd5b7f8a87181fb145a48ed2492392918e653c7e5bb9a6

  • SHA512

    5d0991ccd328d04ee99136c08ecf6ce17d1d557e0b44a7df55a553002c61aaef3a018fdbc90e2a0ca21bd13ef26865e6a8a95d541feb1a827c101a7378703cf5

  • SSDEEP

    768:oq+s3pUtDILNCCa+DimriAPYb+geRHuPkqgmvEgK/JfZVc6KN:oq+AGtQOgQbBJtnkJfZVclN

Malware Config

Extracted

Family

asyncrat

Version

1.0.7

Botnet

PROMESAS NEW 05

C2

promesasalvaro1.duckdns.org:7091

Mutex

DcRatMutex_qwqdanchun

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Deletes itself 1 IoCs
  • Delays execution with timeout.exe 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\xtPT79JKvvlE.exe
    "C:\Users\Admin\AppData\Local\Temp\xtPT79JKvvlE.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2364
    • C:\Windows\system32\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp54CC.tmp.bat""
      2⤵
      • Deletes itself
      • Suspicious use of WriteProcessMemory
      PID:776
      • C:\Windows\system32\timeout.exe
        timeout 3
        3⤵
        • Delays execution with timeout.exe
        PID:1972

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

    Filesize

    68KB

    MD5

    29f65ba8e88c063813cc50a4ea544e93

    SHA1

    05a7040d5c127e68c25d81cc51271ffb8bef3568

    SHA256

    1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

    SHA512

    e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

  • C:\Users\Admin\AppData\Local\Temp\Tar54AC.tmp

    Filesize

    177KB

    MD5

    435a9ac180383f9fa094131b173a2f7b

    SHA1

    76944ea657a9db94f9a4bef38f88c46ed4166983

    SHA256

    67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

    SHA512

    1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

  • C:\Users\Admin\AppData\Local\Temp\tmp54CC.tmp.bat

    Filesize

    164B

    MD5

    4b08e5044caa4847e5f2dd7f975d5e18

    SHA1

    d3025efd1e5d2b6c5b383e70e9c4897835174dd8

    SHA256

    1d5d55a83c03d8d04535219573e30300152d7ed53fde26057f8fec26d79ebee4

    SHA512

    d589a8cbce77b1315dee5343fe96ba0ef35133090eda0f4eddcce548d54aa071f1fcbf2452781d97fb7009648271d38137e7467d5a2282b93d1ead17f81e74f7

  • memory/2364-0-0x0000000000990000-0x00000000009A2000-memory.dmp

    Filesize

    72KB

  • memory/2364-1-0x000007FEF54B0000-0x000007FEF5E9C000-memory.dmp

    Filesize

    9.9MB

  • memory/2364-2-0x0000000001F60000-0x0000000001FE0000-memory.dmp

    Filesize

    512KB

  • memory/2364-20-0x000000001B410000-0x000000001B474000-memory.dmp

    Filesize

    400KB

  • memory/2364-49-0x000007FEF54B0000-0x000007FEF5E9C000-memory.dmp

    Filesize

    9.9MB