Analysis

  • max time kernel
    3s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    24-05-2022 15:43

General

  • Target

    072fe02ff38f45fe7768e146cca94cfeba546c6e2bc167485ffe130d6d0df1ad.exe

  • Size

    5.6MB

  • MD5

    3f6dad88c5366d6feef3b3c9b3ad551c

  • SHA1

    58dc6f61a3e0819dde80dfb03fff029999053351

  • SHA256

    072fe02ff38f45fe7768e146cca94cfeba546c6e2bc167485ffe130d6d0df1ad

  • SHA512

    ae1ea889d1a5db7ef684a26a7678e46c3629c666ded4850aed43c615c66e2076b16839ac3c8fdce79e0b72cdf8e44564ce924b642ef7fa636af002f175f02a07

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
  • Loads dropped DLL 6 IoCs
  • Drops file in Program Files directory 34 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 6 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\072fe02ff38f45fe7768e146cca94cfeba546c6e2bc167485ffe130d6d0df1ad.exe
    "C:\Users\Admin\AppData\Local\Temp\072fe02ff38f45fe7768e146cca94cfeba546c6e2bc167485ffe130d6d0df1ad.exe"
    1⤵
    • Modifies system executable filetype association
    • Loads dropped DLL
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:684
    • C:\Users\Admin\AppData\Local\Temp\3582-490\072fe02ff38f45fe7768e146cca94cfeba546c6e2bc167485ffe130d6d0df1ad.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\072fe02ff38f45fe7768e146cca94cfeba546c6e2bc167485ffe130d6d0df1ad.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      PID:952
  • C:\Windows\system32\AUDIODG.EXE
    C:\Windows\system32\AUDIODG.EXE 0x510
    1⤵
      PID:856

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\3582-490\072fe02ff38f45fe7768e146cca94cfeba546c6e2bc167485ffe130d6d0df1ad.exe
      Filesize

      809KB

      MD5

      2d09ba3b5ae315b9db99955cc535d1bd

      SHA1

      8aa44194a5bf852f1e5f4afddcc1d0d942a75ce6

      SHA256

      21982a93826537977d2f21c2d4934393f99e0b9bc73f227ba6ee5b5d1a66e9bd

      SHA512

      29d8e1539cfae4711389b4714b5d1963c80afc2004924dc99fb412b74a7552812712a35c8fe7a464f464a6b2851553a5ba74f41c1f6ebecbdd3dfb94664da914

    • C:\Users\Admin\AppData\Local\Temp\3582-490\072fe02ff38f45fe7768e146cca94cfeba546c6e2bc167485ffe130d6d0df1ad.exe
      Filesize

      770KB

      MD5

      37ccba16370ad1d7a3f0039a42a4eea7

      SHA1

      14d1e72ef54e325136ef8b34df7ad1f0f6d35e8c

      SHA256

      1e32599f7e3ac9323036b1179ff013392aef312cc06080e0bbad665ce1f068d8

      SHA512

      3c6dce9249d932b8251a1c61476dbdb2c5071c0d4357443712342e93d228c8e12de8e3457e6a59d714ec17ea6e443ed45e8bc1c46c12534190ade4a1abad01fc

    • \PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE
      MD5

      d41d8cd98f00b204e9800998ecf8427e

      SHA1

      da39a3ee5e6b4b0d3255bfef95601890afd80709

      SHA256

      e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

      SHA512

      cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

    • \Users\Admin\AppData\Local\Temp\3582-490\072fe02ff38f45fe7768e146cca94cfeba546c6e2bc167485ffe130d6d0df1ad.exe
      Filesize

      798KB

      MD5

      203be904690b5283149183e6ad4d33b7

      SHA1

      31410ef928019a6946d18f4d2efc5c266af6062b

      SHA256

      4055d19ba59d368bcb92bb3e523533b42c8d7d3f0af0ddfdee90e206e6354074

      SHA512

      3bd5d19d357cdf008232759c2374adddda7e2dc932a6e3c67626de60126b503320a1045718ef54cd7012fdf426bae81dac64f8c08a9ecb708747a07334bacc25

    • \Users\Admin\AppData\Local\Temp\3582-490\072fe02ff38f45fe7768e146cca94cfeba546c6e2bc167485ffe130d6d0df1ad.exe
      Filesize

      803KB

      MD5

      5bc3db054b7e2231934b1ca97ac83203

      SHA1

      dbe10a97ea50c9d4b7ae3bf16f9a6dc1cf4d92af

      SHA256

      f8a70a2a5229c21558b4b070623efa4ce3b53777a84ebe0b9bbb3589b2583c33

      SHA512

      95bb5cea98d567dae9de72ae09ea864fc69863d5ab0bd52aebdb0c6c6a60361663e51d9ea6d1ebaacc887e7dd81bbcf63da99040fba4b3733bc26f75ce968285

    • \Users\Admin\AppData\Local\Temp\3582-490\072fe02ff38f45fe7768e146cca94cfeba546c6e2bc167485ffe130d6d0df1ad.exe
      Filesize

      625KB

      MD5

      887d06393d39439bcfc3510f166c9759

      SHA1

      659d9eff7a63d0a1ce261f8cf232c7207a5e1090

      SHA256

      a029a0c4928f0a0634df84782c9044926260ac0801e10cee625ff8875d4f3cda

      SHA512

      720e04cf33467ce2e09a63c19674be70a648d6e647336535f397b363343d7d9a07fc2c7ce833e9facdcc6c06d27fd9d49b0f21956f70572444121807b925127e

    • \Users\Admin\AppData\Local\Temp\3582-490\072fe02ff38f45fe7768e146cca94cfeba546c6e2bc167485ffe130d6d0df1ad.exe
      Filesize

      804KB

      MD5

      1e1332255f92591c4e8c3671b1a4f366

      SHA1

      3a7883964919f3c5785790f2eab68c8c39b7a244

      SHA256

      1cdc58751f5d84e30a9c553dd9f0d6ec14b05c8e8bab1a341e5a13583638a6fd

      SHA512

      63c0bae53d18fb26a876a9d2ded77669c9f72c0a2d6eb39d974bc7ab0c0cf16212a421a1474668348479568cc42bbd71770c4fc082b6b7d9057e9dfbefedd2de

    • \Users\Admin\AppData\Local\Temp\nsdA21.tmp\AdvSplash.dll
    • \Users\Admin\AppData\Local\Temp\nsdA21.tmp\InstallOptions.dll
    • \Users\Admin\AppData\Local\Temp\nsdA21.tmp\UserInfo.dll
    • memory/684-54-0x00000000753B1000-0x00000000753B3000-memory.dmp
      Filesize

      8KB

    • memory/952-56-0x0000000000000000-mapping.dmp