Analysis

  • max time kernel
    92s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-11-2022 11:51

General

  • Target

    b6cc05dbc0d50b76320330e273ade52aa089314945ba6c3bafe3cf5b5d06a987.exe

  • Size

    597KB

  • MD5

    19d4e907e73ecc8c9e564c71c127f3e6

  • SHA1

    590ed32308c954044b2d240b1cd004ae4bb97595

  • SHA256

    b6cc05dbc0d50b76320330e273ade52aa089314945ba6c3bafe3cf5b5d06a987

  • SHA512

    d699982b048f83298c112aa0bd64f0d2047649288b20a0b1ff97807797d7b2127aa53fc62198ceca9bb00e3e52930c1f824e3fe641f00b60a262d7c12826ca09

  • SSDEEP

    12288:Wo9v5hk94n24O9pcsBPcFUM88thnJbXoQcH:Wezn24GHtcn8CjLQ

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

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

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • NSIS installer 4 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b6cc05dbc0d50b76320330e273ade52aa089314945ba6c3bafe3cf5b5d06a987.exe
    "C:\Users\Admin\AppData\Local\Temp\b6cc05dbc0d50b76320330e273ade52aa089314945ba6c3bafe3cf5b5d06a987.exe"
    1⤵
    • Modifies system executable filetype association
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3224
    • C:\Users\Admin\AppData\Local\Temp\3582-490\b6cc05dbc0d50b76320330e273ade52aa089314945ba6c3bafe3cf5b5d06a987.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\b6cc05dbc0d50b76320330e273ade52aa089314945ba6c3bafe3cf5b5d06a987.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:844

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\b6cc05dbc0d50b76320330e273ade52aa089314945ba6c3bafe3cf5b5d06a987.exe

    Filesize

    556KB

    MD5

    6000357e0681e37e8f6b46731e09434f

    SHA1

    e1a8751265998903478be0a1481c4a0deb2100b4

    SHA256

    753aff7069ed83dd81536e43efec6d952bc74d3304b58cbcbd050376261853ea

    SHA512

    d1d940d1acdb246b8b21fa69099dfe102e13612851c47d813672a2187437e7b82dbdf1e7e0a92aba144cc6b3fbacab8fbb66bdf1df7c81fb78698b8df84facaa

  • C:\Users\Admin\AppData\Local\Temp\3582-490\b6cc05dbc0d50b76320330e273ade52aa089314945ba6c3bafe3cf5b5d06a987.exe

    Filesize

    556KB

    MD5

    6000357e0681e37e8f6b46731e09434f

    SHA1

    e1a8751265998903478be0a1481c4a0deb2100b4

    SHA256

    753aff7069ed83dd81536e43efec6d952bc74d3304b58cbcbd050376261853ea

    SHA512

    d1d940d1acdb246b8b21fa69099dfe102e13612851c47d813672a2187437e7b82dbdf1e7e0a92aba144cc6b3fbacab8fbb66bdf1df7c81fb78698b8df84facaa

  • C:\Users\Admin\AppData\Local\Temp\nskADF9.tmp\InstallOptions.dll

    Filesize

    14KB

    MD5

    0dc0cc7a6d9db685bf05a7e5f3ea4781

    SHA1

    5d8b6268eeec9d8d904bc9d988a4b588b392213f

    SHA256

    8e287326f1cdd5ef2dcd7a72537c68cbe4299ceb1f820707c5820f3aa6d8206c

    SHA512

    814dd17ebb434f4a3356f716c783ab7f569f9ee34ce5274fa50392526925f044798f8006198ac7afe3d1c2ca83a2ca8c472ca53fec5f12bbfbbe0707abacd6b0

  • memory/844-132-0x0000000000000000-mapping.dmp