Analysis

  • max time kernel
    151s
  • max time network
    169s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/12/2022, 06:56

General

  • Target

    b60061c194000f6ac63932f058b6ac156b3193acc02a8a31aea7402c5eeda9c8.exe

  • Size

    274KB

  • MD5

    b17a72357abf7c4aba2e173ebe633ac7

  • SHA1

    576ba71aa8802880324300e2be88cd3f2ac5ce49

  • SHA256

    b60061c194000f6ac63932f058b6ac156b3193acc02a8a31aea7402c5eeda9c8

  • SHA512

    26754ac9c2b9727f7ce5debcf4a4bda3aea074d80c94f3c11a3c109e533b995299ec2c79b15d601f064f11e819fb229b2ea3c3a72c57fcba1c02c6de2a15f94c

  • SSDEEP

    6144:FsaocyLCecZ/gU1T4t74kWZNSi7L360SNIG8A17s:FtoboJ1TQcHXxL360SSLi4

Score
8/10

Malware Config

Signatures

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

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

  • Loads dropped DLL 1 IoCs
  • Drops desktop.ini file(s) 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b60061c194000f6ac63932f058b6ac156b3193acc02a8a31aea7402c5eeda9c8.exe
    "C:\Users\Admin\AppData\Local\Temp\b60061c194000f6ac63932f058b6ac156b3193acc02a8a31aea7402c5eeda9c8.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:3156
    • C:\Users\Admin\AppData\Local\Temp\nsxC069.tmp\installer.exe
      C:\Users\Admin\AppData\Local\Temp\nsxC069.tmp\installer.exe 4fe0cf9f-1fe4-4abb-905a-57915bc06f2f.exe /t /dT131950003S /e5844815 /u4fe0cf9f-1fe4-4abb-905a-57915bc06f2f
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Drops desktop.ini file(s)
      • Drops file in Windows directory
      • Modifies system certificate store
      • Suspicious use of WriteProcessMemory
      PID:1392
      • C:\Users\Admin\AppData\Local\Temp\nsxC069.tmp\4fe0cf9f-1fe4-4abb-905a-57915bc06f2f.exe
        "C:\Users\Admin\AppData\Local\Temp\nsxC069.tmp\4fe0cf9f-1fe4-4abb-905a-57915bc06f2f.exe" /t /dT131950003S /e5844815 /u4fe0cf9f-1fe4-4abb-905a-57915bc06f2f
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:316

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\955CAB6FF6A24D5820D50B5BA1CF79C7_AD9E7615297A3A83320AACE5801A04F9

          Filesize

          5B

          MD5

          5bfa51f3a417b98e7443eca90fc94703

          SHA1

          8c015d80b8a23f780bdd215dc842b0f5551f63bd

          SHA256

          bebe2853a3485d1c2e5c5be4249183e0ddaff9f87de71652371700a89d937128

          SHA512

          4cd03686254bb28754cbaa635ae1264723e2be80ce1dd0f78d1ab7aee72232f5b285f79e488e9c5c49ff343015bd07bb8433d6cee08ae3cea8c317303e3ac399

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\955CAB6FF6A24D5820D50B5BA1CF79C7_AD9E7615297A3A83320AACE5801A04F9

          Filesize

          404B

          MD5

          418ef39f2a3538cc1acf760225beb221

          SHA1

          e372060392a3c396b37bf308f2472bc05e4e8a99

          SHA256

          253ac767666362123a7dcafd0ba02c536e77ab5dff5e257a653f4a552134307c

          SHA512

          a2ca1b107fa6ab9d767ed36a7386f8fd669c5ff0f470dd1c32dd72eb9011dc8fca80d9982f52085b2d5409ad95c6d0751bed96f422a7a05f356f1a74e77dc6f8

        • C:\Users\Admin\AppData\Local\Temp\nsxC069.tmp\4fe0cf9f-1fe4-4abb-905a-57915bc06f2f.exe

          Filesize

          256KB

          MD5

          6e68cf541f031c7de9da6ec8d86862aa

          SHA1

          115f143b5f585a27006159dc1b2d4d23a7af5295

          SHA256

          d1763b911eebce060a4c479190e83ff5747f5e75f938fb1cb23d5fcaba249e35

          SHA512

          022af872f2343293a0d71c6cc3ca3f13001ce7ad8e04cf740b75574272cad1dcb40a97a0e860082e7080a69a0367438728f1983317349d5a33ca969c3d877de1

        • C:\Users\Admin\AppData\Local\Temp\nsxC069.tmp\4fe0cf9f-1fe4-4abb-905a-57915bc06f2f.exe

          Filesize

          256KB

          MD5

          6e68cf541f031c7de9da6ec8d86862aa

          SHA1

          115f143b5f585a27006159dc1b2d4d23a7af5295

          SHA256

          d1763b911eebce060a4c479190e83ff5747f5e75f938fb1cb23d5fcaba249e35

          SHA512

          022af872f2343293a0d71c6cc3ca3f13001ce7ad8e04cf740b75574272cad1dcb40a97a0e860082e7080a69a0367438728f1983317349d5a33ca969c3d877de1

        • C:\Users\Admin\AppData\Local\Temp\nsxC069.tmp\installer.exe

          Filesize

          214KB

          MD5

          7cf3bce5ecf2aea97b49e2eba8ca0aba

          SHA1

          543f5fc23df08f946488d27b2fb16b13b6311d1a

          SHA256

          7358afae03a24b31c0d82ee4e5fd2f17cafe6c3bdd8e26326aa4118f2169f736

          SHA512

          5f9184189940af27e25ae2988db8d15923dac81b2410c5fe3287f126fb50df43735fccb4e4d9f376e9f24700604c157aa1828622dab54014d9583a56ab698d8d

        • C:\Users\Admin\AppData\Local\Temp\nsxC069.tmp\installer.exe

          Filesize

          214KB

          MD5

          7cf3bce5ecf2aea97b49e2eba8ca0aba

          SHA1

          543f5fc23df08f946488d27b2fb16b13b6311d1a

          SHA256

          7358afae03a24b31c0d82ee4e5fd2f17cafe6c3bdd8e26326aa4118f2169f736

          SHA512

          5f9184189940af27e25ae2988db8d15923dac81b2410c5fe3287f126fb50df43735fccb4e4d9f376e9f24700604c157aa1828622dab54014d9583a56ab698d8d

        • C:\Users\Admin\AppData\Local\Temp\nsxC069.tmp\nsExec.dll

          Filesize

          8KB

          MD5

          249ae678f0dac4c625c6de6aca53823a

          SHA1

          6ac2b9e90e8445fed4c45c5dbf2d0227cd3b5201

          SHA256

          7298024a36310b7c4c112be87b61b62a0b1be493e2d5252a19e5e976daf674ce

          SHA512

          66e4081a40f3191bf28b810cf8411cb3c8c3e3ec5943e18d6672414fb5e7b4364f862cba44c9115c599ac90890ef02a773e254e7c979e930946bc52b0693aad7

        • memory/316-143-0x0000000074400000-0x00000000749B1000-memory.dmp

          Filesize

          5.7MB

        • memory/316-144-0x0000000074400000-0x00000000749B1000-memory.dmp

          Filesize

          5.7MB

        • memory/1392-137-0x0000000074400000-0x00000000749B1000-memory.dmp

          Filesize

          5.7MB

        • memory/1392-136-0x0000000074400000-0x00000000749B1000-memory.dmp

          Filesize

          5.7MB

        • memory/1392-145-0x0000000074400000-0x00000000749B1000-memory.dmp

          Filesize

          5.7MB