Analysis

  • max time kernel
    129s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    03-03-2023 17:29

General

  • Target

    b7fa92c8e5964344b04d4d1dd852e668c7a7a383b51772153119e82eb2ebf07f.exe

  • Size

    27.0MB

  • MD5

    88b635220d591a43eeb83b7c31526042

  • SHA1

    4e60d8880c443408e4e23576782d3405e7f0a347

  • SHA256

    b7fa92c8e5964344b04d4d1dd852e668c7a7a383b51772153119e82eb2ebf07f

  • SHA512

    b2b7dc85acbabd054f6ca659703381f50fef62404e4993483dd886052d84723fbbd1831e13cdfa2d95ebd047a15037b3839988bb8304deb7020e89d1d59ab889

  • SSDEEP

    786432:h0Toia9r/RlLvvG8TgFj7ObJChIRpt2mU:h8T0nLvv+EshIRpU9

Score
7/10

Malware Config

Signatures

  • Loads dropped DLL 8 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b7fa92c8e5964344b04d4d1dd852e668c7a7a383b51772153119e82eb2ebf07f.exe
    "C:\Users\Admin\AppData\Local\Temp\b7fa92c8e5964344b04d4d1dd852e668c7a7a383b51772153119e82eb2ebf07f.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    PID:2044

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\nst85D.tmp\CreateInstallScript.dll

    Filesize

    102KB

    MD5

    db4176e15f3930d18a18c42a3cf37c7f

    SHA1

    1081cc31dedae348bdb3b1f2935074a486d28fb9

    SHA256

    8858d7b622138642c4db271f39ff069033ecc8cf8cb3f1f9cd59318c2b62faf8

    SHA512

    23e8e36e5bfeb8e6407df0360a3ebcf442e98ed24fee38d2d1b146f34441faa611459ada512d825ca484498ec939faaf735e261a39b6c8843336421af7039426

  • C:\Users\Admin\AppData\Local\Temp\nst85D.tmp\System.dll

    Filesize

    9KB

    MD5

    b7c1799cd69553e6ac51fe329376b2b8

    SHA1

    21f47ffdb983360171317e4a8cc3b3e0523b0e8d

    SHA256

    596606a63b104da2c0e583605ab887031b8ad781102782ffccffb665e517f213

    SHA512

    4029f93cc8508cd665c7856d10c870af4441187dd2b18d0fc0029efc3e35d8a7df167cb54b3c5c682c9cd0f9f2f266323cf5dbef45e503d44210679acee3c133

  • C:\Users\Admin\AppData\Local\Temp\nst85D.tmp\installmode.ini

    Filesize

    562B

    MD5

    7bbd3df3683a8a926f3d0f07eac0f205

    SHA1

    54fed79b1b448743fa16e6340c4c6bb81d103bc4

    SHA256

    02daa877f3b06c4cecd512c83734385693a59093b4d7f6b60513a0c53b3c3183

    SHA512

    824705b62ee9ed5e8fc289bfae73958ba4cf673c0400658d2e72ca1a14ca347fc036ba1c4d6d9bbfd0eda82e9896b2e044d86f04a6de4363b75be89f33533c5e

  • C:\Users\Admin\AppData\Local\Temp\nst85D.tmp\{AE6AC3F9-B8E9-4f4d-927C-9DFB2EC416A0}.ini

    Filesize

    2KB

    MD5

    1356659d14195fee20721e0dbc06f048

    SHA1

    7377b47bb56d50c5d86d7a1314f370b8020b029a

    SHA256

    e07a24a19ea535d49ecf1e77663564b8597e5d9bcdc7977b6d722907743281fd

    SHA512

    0ee382237f43fe3eae8370a13c887ec7547829053be7c304ededf75a888d4b465f90c434029207035adecf7c047d4e2a55040232008f5cdf12fd2ebdb78bdb20

  • \Users\Admin\AppData\Local\Temp\nst85D.tmp\CreateInstallScript.dll

    Filesize

    102KB

    MD5

    db4176e15f3930d18a18c42a3cf37c7f

    SHA1

    1081cc31dedae348bdb3b1f2935074a486d28fb9

    SHA256

    8858d7b622138642c4db271f39ff069033ecc8cf8cb3f1f9cd59318c2b62faf8

    SHA512

    23e8e36e5bfeb8e6407df0360a3ebcf442e98ed24fee38d2d1b146f34441faa611459ada512d825ca484498ec939faaf735e261a39b6c8843336421af7039426

  • \Users\Admin\AppData\Local\Temp\nst85D.tmp\InstallOptions.dll

    Filesize

    15KB

    MD5

    1d8ade5c04339687340b9b4cb6b7854e

    SHA1

    f43e24e8615402161fdac02f9fb396808cc42afa

    SHA256

    83bf9c630141db8531d1c83bc783a79965f0e3438c84ab98f464fff2441c6f71

    SHA512

    121e7be13e120b1a1e958c6fb530cc642f8585190e0c9d44982d3337980c41742e1e455636005f01c7461ba365789d8bf9247643ab72620011ff31e684d8ef32

  • \Users\Admin\AppData\Local\Temp\nst85D.tmp\LangDLL.dll

    Filesize

    4KB

    MD5

    12a4553bfb677393b102e5784a56cc39

    SHA1

    e16d55cffc5e2a5e891f3c5159fef5f2676dc639

    SHA256

    7309efa056b8958d5de7ebb4a96c00a92d3cf932a83beec721243f1649bbb3d5

    SHA512

    42a71229111a377f128e7d69dcddcf4a82f940c3e837519f6fede029596b8964ea27a3e52b8aa4f115182046ebdda227d8d2e9b11fc9a63c0e655325fad3e75e

  • \Users\Admin\AppData\Local\Temp\nst85D.tmp\Processes.dll

    Filesize

    35KB

    MD5

    53c49f56c890b3fc52318a0342008813

    SHA1

    45ad45f8c3ce765a96f8228f7038feb7db114c23

    SHA256

    48e2706c457b9d91fd36d07e20c6130864a16763b33f78c8dd8282c85b7eb3af

    SHA512

    7eb4c146ce9ccba47d489d8221ecba8a8a37681a27c22228aa52f56116cb3d4f726cb0c85c2448a7ef300f02abf12d1e03ca0f3b827958492983c9cd69e8c9ee

  • \Users\Admin\AppData\Local\Temp\nst85D.tmp\System.dll

    Filesize

    9KB

    MD5

    b7c1799cd69553e6ac51fe329376b2b8

    SHA1

    21f47ffdb983360171317e4a8cc3b3e0523b0e8d

    SHA256

    596606a63b104da2c0e583605ab887031b8ad781102782ffccffb665e517f213

    SHA512

    4029f93cc8508cd665c7856d10c870af4441187dd2b18d0fc0029efc3e35d8a7df167cb54b3c5c682c9cd0f9f2f266323cf5dbef45e503d44210679acee3c133

  • \Users\Admin\AppData\Local\Temp\nst85D.tmp\System.dll

    Filesize

    9KB

    MD5

    b7c1799cd69553e6ac51fe329376b2b8

    SHA1

    21f47ffdb983360171317e4a8cc3b3e0523b0e8d

    SHA256

    596606a63b104da2c0e583605ab887031b8ad781102782ffccffb665e517f213

    SHA512

    4029f93cc8508cd665c7856d10c870af4441187dd2b18d0fc0029efc3e35d8a7df167cb54b3c5c682c9cd0f9f2f266323cf5dbef45e503d44210679acee3c133

  • \Users\Admin\AppData\Local\Temp\nst85D.tmp\System.dll

    Filesize

    9KB

    MD5

    b7c1799cd69553e6ac51fe329376b2b8

    SHA1

    21f47ffdb983360171317e4a8cc3b3e0523b0e8d

    SHA256

    596606a63b104da2c0e583605ab887031b8ad781102782ffccffb665e517f213

    SHA512

    4029f93cc8508cd665c7856d10c870af4441187dd2b18d0fc0029efc3e35d8a7df167cb54b3c5c682c9cd0f9f2f266323cf5dbef45e503d44210679acee3c133

  • \Users\Admin\AppData\Local\Temp\nst85D.tmp\System.dll

    Filesize

    9KB

    MD5

    b7c1799cd69553e6ac51fe329376b2b8

    SHA1

    21f47ffdb983360171317e4a8cc3b3e0523b0e8d

    SHA256

    596606a63b104da2c0e583605ab887031b8ad781102782ffccffb665e517f213

    SHA512

    4029f93cc8508cd665c7856d10c870af4441187dd2b18d0fc0029efc3e35d8a7df167cb54b3c5c682c9cd0f9f2f266323cf5dbef45e503d44210679acee3c133